/**
 * Furnace Tracker - multi-system chiptune tracker
 * Copyright (C) 2021-2022 tildearrow and contributors
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include "gui.h"
#include "fonts.h"
#include "../ta-log.h"
#include "../fileutils.h"
#include "util.h"
#include "guiConst.h"
#include "ImGuiFileDialog.h"
#include "IconsFontAwesome4.h"
#include "misc/cpp/imgui_stdlib.h"
#include <fmt/printf.h>
#include <imgui.h>

#define DEFAULT_NOTE_KEYS "5:7;6:4;7:3;8:16;10:6;11:8;12:24;13:10;16:11;17:9;18:26;19:28;20:12;21:17;22:1;23:19;24:23;25:5;26:14;27:2;28:21;29:0;30:100;31:13;32:15;34:18;35:20;36:22;38:25;39:27;43:100;46:101;47:29;48:31;53:102;"

#if defined(_WIN32) || defined(__APPLE__)
#define POWER_SAVE_DEFAULT 1
#else
// currently off on Linux/other due to Mesa catch-up behavior.
#define POWER_SAVE_DEFAULT 0
#endif

const char* mainFonts[]={
  "IBM Plex Sans",
  "Liberation Sans",
  "Exo",
  "Proggy Clean",
  "GNU Unifont",
  "<Use system font>",
  "<Custom...>"
};

const char* patFonts[]={
  "IBM Plex Mono",
  "Mononoki",
  "PT Mono",
  "Proggy Clean",
  "GNU Unifont",
  "<Use system font>",
  "<Custom...>"
};

const char* audioBackends[]={
  "JACK",
  "SDL"
};

const char* audioQualities[]={
  "High",
  "Low"
};

const char* arcadeCores[]={
  "ymfm",
  "Nuked-OPM"
};

const char* ym2612Cores[]={
  "Nuked-OPN2",
  "ymfm"
};

const char* saaCores[]={
  "MAME",
  "SAASound"
};

const char* valueInputStyles[]={
  "Disabled/custom",
  "Two octaves (0 is C-4, F is D#5)",
  "Raw (note number is value)",
  "Two octaves alternate (lower keys are 0-9, upper keys are A-F)",
  "Use dual control change (one for each nibble)",
  "Use 14-bit control change",
  "Use single control change (imprecise)"
};

const char* valueSInputStyles[]={
  "Disabled/custom",
  "Use dual control change (one for each nibble)",
  "Use 14-bit control change",
  "Use single control change (imprecise)"
};

const char* messageTypes[]={
  "--select--",
  "???",
  "???",
  "???",
  "???",
  "???",
  "???",
  "???",
  "Note Off",
  "Note On",
  "Aftertouch",
  "Control",
  "Program",
  "ChanPressure",
  "Pitch Bend",
  "SysEx"
};

const char* messageChannels[]={
  "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "Any"
};

const char* specificControls[18]={
  "Instrument",
  "Volume",
  "Effect 1 type",
  "Effect 1 value",
  "Effect 2 type",
  "Effect 2 value",
  "Effect 3 type",
  "Effect 3 value",
  "Effect 4 type",
  "Effect 4 value",
  "Effect 5 type",
  "Effect 5 value",
  "Effect 6 type",
  "Effect 6 value",
  "Effect 7 type",
  "Effect 7 value",
  "Effect 8 type",
  "Effect 8 value"
};

#define SAMPLE_RATE_SELECTABLE(x) \
  if (ImGui::Selectable(#x,settings.audioRate==x)) { \
    settings.audioRate=x; \
  }

#define BUFFER_SIZE_SELECTABLE(x) \
  if (ImGui::Selectable(#x,settings.audioBufSize==x)) { \
    settings.audioBufSize=x; \
  }

#define UI_COLOR_CONFIG(what,label) \
  if (ImGui::ColorEdit4(label "##CC_" #what,(float*)&uiColors[what])) { \
    applyUISettings(false); \
  }

#define KEYBIND_CONFIG_BEGIN(id) \
  if (ImGui::BeginTable(id,2)) {

#define KEYBIND_CONFIG_END \
    ImGui::EndTable(); \
  }

#define UI_KEYBIND_CONFIG(what) \
  ImGui::TableNextRow(); \
  ImGui::TableNextColumn(); \
  ImGui::TextUnformatted(guiActions[what].friendlyName); \
  ImGui::TableNextColumn(); \
  if (ImGui::Button(fmt::sprintf("%s##KC_" #what,(bindSetPending && bindSetTarget==what)?"Press key...":getKeyName(actionKeys[what])).c_str())) { \
    promptKey(what); \
  } \
  if (ImGui::IsItemClicked(ImGuiMouseButton_Right)) actionKeys[what]=0;

String stripName(String what) {
  String ret;
  for (char& i: what) {
    if ((i>='A' && i<='Z') || (i>='a' && i<='z') || (i>='0' && i<='9')) {
      ret+=i;
    } else {
      ret+='-';
    }
  }
  return ret;
}

void FurnaceGUI::promptKey(int which) {
  bindSetTarget=which;
  bindSetActive=true;
  bindSetPending=true;
  bindSetPrevValue=actionKeys[which];
  actionKeys[which]=0;
}

struct MappedInput {
  int scan;
  int val;
  MappedInput():
    scan(SDL_SCANCODE_UNKNOWN), val(0) {}
  MappedInput(int s, int v):
    scan(s), val(v) {}
};

void FurnaceGUI::drawSettings() {
  if (nextWindow==GUI_WINDOW_SETTINGS) {
    settingsOpen=true;
    ImGui::SetNextWindowFocus();
    nextWindow=GUI_WINDOW_NOTHING;
  }
  if (!settingsOpen) return;
  if (ImGui::Begin("Settings",&settingsOpen,ImGuiWindowFlags_NoDocking)) {
    if (!settingsOpen) {
      settingsOpen=true;
      showWarning("Do you want to save your settings?",GUI_WARN_CLOSE_SETTINGS);
    }
    if (ImGui::BeginTabBar("settingsTab")) {
      if (ImGui::BeginTabItem("General")) {
        ImGui::Text("Workspace layout");
        if (ImGui::Button("Import")) {
          openFileDialog(GUI_FILE_IMPORT_LAYOUT);
        }
        ImGui::SameLine();
        if (ImGui::Button("Export")) {
          openFileDialog(GUI_FILE_EXPORT_LAYOUT);
        }
        ImGui::SameLine();
        if (ImGui::Button("Reset")) {
          showWarning("Are you sure you want to reset the workspace layout?",GUI_WARN_RESET_LAYOUT);
        }
        ImGui::Separator();
        ImGui::Text("Toggle channel solo on:");
        if (ImGui::RadioButton("Right-click or double-click##soloA",settings.soloAction==0)) {
          settings.soloAction=0;
        }
        if (ImGui::RadioButton("Right-click##soloR",settings.soloAction==1)) {
          settings.soloAction=1;
        }
        if (ImGui::RadioButton("Double-click##soloD",settings.soloAction==2)) {
          settings.soloAction=2;
        }

        bool pushNibbleB=settings.pushNibble;
        if (ImGui::Checkbox("Push value when overwriting instead of clearing it",&pushNibbleB)) {
          settings.pushNibble=pushNibbleB;
        }

        bool pullDeleteBehaviorB=settings.pullDeleteBehavior;
        if (ImGui::Checkbox("Move cursor up on backspace-delete",&pullDeleteBehaviorB)) {
          settings.pullDeleteBehavior=pullDeleteBehaviorB;
        }

        bool stepOnDeleteB=settings.stepOnDelete;
        if (ImGui::Checkbox("Move cursor by edit step on delete",&stepOnDeleteB)) {
          settings.stepOnDelete=stepOnDeleteB;
        }

        bool absorbInsInputB=settings.absorbInsInput;
        if (ImGui::Checkbox("Change current instrument when changing instrument column (absorb)",&absorbInsInputB)) {
          settings.absorbInsInput=absorbInsInputB;
        }

        bool effectDeletionAltersValueB=settings.effectDeletionAltersValue;
        if (ImGui::Checkbox("Delete effect value when deleting effect",&effectDeletionAltersValueB)) {
          settings.effectDeletionAltersValue=effectDeletionAltersValueB;
        }

        bool scrollChangesOrderB=settings.scrollChangesOrder;
        if (ImGui::Checkbox("Change order when scrolling outside of pattern bounds",&scrollChangesOrderB)) {
          settings.scrollChangesOrder=scrollChangesOrderB;
        }

        bool stepOnInsertB=settings.stepOnInsert;
        if (ImGui::Checkbox("Move cursor by edit step on insert (push)",&stepOnInsertB)) {
          settings.stepOnInsert=stepOnInsertB;
        }

        bool cursorPastePosB=settings.cursorPastePos;
        if (ImGui::Checkbox("Move cursor to end of clipboard content when pasting",&cursorPastePosB)) {
          settings.cursorPastePos=cursorPastePosB;
        }

        bool cursorMoveNoScrollB=settings.cursorMoveNoScroll;
        if (ImGui::Checkbox("Don't scroll when moving cursor",&cursorMoveNoScrollB)) {
          settings.cursorMoveNoScroll=cursorMoveNoScrollB;
        }

        bool allowEditDockingB=settings.allowEditDocking;
        if (ImGui::Checkbox("Allow docking editors",&allowEditDockingB)) {
          settings.allowEditDocking=allowEditDockingB;
        }

        bool avoidRaisingPatternB=settings.avoidRaisingPattern;
        if (ImGui::Checkbox("Don't raise pattern editor on click",&avoidRaisingPatternB)) {
          settings.avoidRaisingPattern=avoidRaisingPatternB;
        }

        bool insFocusesPatternB=settings.insFocusesPattern;
        if (ImGui::Checkbox("Focus pattern editor when selecting instrument",&insFocusesPatternB)) {
          settings.insFocusesPattern=insFocusesPatternB;
        }

        bool restartOnFlagChangeB=settings.restartOnFlagChange;
        if (ImGui::Checkbox("Restart song when changing system properties",&restartOnFlagChangeB)) {
          settings.restartOnFlagChange=restartOnFlagChangeB;
        }

        bool sysFileDialogB=settings.sysFileDialog;
        if (ImGui::Checkbox("Use system file picker",&sysFileDialogB)) {
          settings.sysFileDialog=sysFileDialogB;
        }

        bool powerSaveB=settings.powerSave;
        if (ImGui::Checkbox("Power-saving mode",&powerSaveB)) {
          settings.powerSave=powerSaveB;
        }
        if (ImGui::IsItemHovered()) {
          ImGui::SetTooltip("saves power by lowering the frame rate to 2fps when idle.\nmay cause issues under Mesa drivers!");
        }

        ImGui::Text("Note preview behavior:");
        if (ImGui::RadioButton("Never##npb0",settings.notePreviewBehavior==0)) {
          settings.notePreviewBehavior=0;
        }
        if (ImGui::RadioButton("When cursor is in Note column##npb1",settings.notePreviewBehavior==1)) {
          settings.notePreviewBehavior=1;
        }
        if (ImGui::RadioButton("When cursor is in Note column or not in edit mode##npb2",settings.notePreviewBehavior==2)) {
          settings.notePreviewBehavior=2;
        }
        if (ImGui::RadioButton("Always##npb3",settings.notePreviewBehavior==3)) {
          settings.notePreviewBehavior=3;
        }

        ImGui::Text("Wrap pattern cursor horizontally:");
        if (ImGui::RadioButton("No##wrapH0",settings.wrapHorizontal==0)) {
          settings.wrapHorizontal=0;
        }
        if (ImGui::RadioButton("Yes##wrapH1",settings.wrapHorizontal==1)) {
          settings.wrapHorizontal=1;
        }
        if (ImGui::RadioButton("Yes, and move to next/prev row##wrapH2",settings.wrapHorizontal==2)) {
          settings.wrapHorizontal=2;
        }

        ImGui::Text("Wrap pattern cursor vertically:");
        if (ImGui::RadioButton("No##wrapV0",settings.wrapVertical==0)) {
          settings.wrapVertical=0;
        }
        if (ImGui::RadioButton("Yes##wrapV1",settings.wrapVertical==1)) {
          settings.wrapVertical=1;
        }
        if (ImGui::RadioButton("Yes, and move to next/prev pattern##wrapV2",settings.wrapVertical==2)) {
          settings.wrapVertical=2;
        }

        ImGui::Text("Cursor movement keys behavior:");
        if (ImGui::RadioButton("Move by one##cmk0",settings.scrollStep==0)) {
          settings.scrollStep=0;
        }
        if (ImGui::RadioButton("Move by Edit Step##cmk1",settings.scrollStep==1)) {
          settings.scrollStep=1;
        }

        ImGui::Text("Effect input cursor behavior:");
        if (ImGui::RadioButton("Move down##eicb0",settings.effectCursorDir==0)) {
          settings.effectCursorDir=0;
        }
        if (ImGui::RadioButton("Move to effect value (otherwise move down)##eicb1",settings.effectCursorDir==1)) {
          settings.effectCursorDir=1;
        }
        if (ImGui::RadioButton("Move to effect value/next effect and wrap around##eicb2",settings.effectCursorDir==2)) {
          settings.effectCursorDir=2;
        }

        ImGui::EndTabItem();
      }
      if (ImGui::BeginTabItem("Audio/MIDI")) {
        ImGui::Text("Backend");
        ImGui::SameLine();
        ImGui::Combo("##Backend",&settings.audioEngine,audioBackends,2);

        ImGui::Text("Device");
        ImGui::SameLine();
        String audioDevName=settings.audioDevice.empty()?"<System default>":settings.audioDevice;
        if (ImGui::BeginCombo("##AudioDevice",audioDevName.c_str())) {
          if (ImGui::Selectable("<System default>",settings.audioDevice.empty())) {
            settings.audioDevice="";
          }
          for (String& i: e->getAudioDevices()) {
            if (ImGui::Selectable(i.c_str(),i==settings.audioDevice)) {
              settings.audioDevice=i;
            }
          }
          ImGui::EndCombo();
        }

        ImGui::Text("Sample rate");
        ImGui::SameLine();
        String sr=fmt::sprintf("%d",settings.audioRate);
        if (ImGui::BeginCombo("##SampleRate",sr.c_str())) {
          SAMPLE_RATE_SELECTABLE(8000);
          SAMPLE_RATE_SELECTABLE(16000);
          SAMPLE_RATE_SELECTABLE(22050);
          SAMPLE_RATE_SELECTABLE(32000);
          SAMPLE_RATE_SELECTABLE(44100);
          SAMPLE_RATE_SELECTABLE(48000);
          SAMPLE_RATE_SELECTABLE(88200);
          SAMPLE_RATE_SELECTABLE(96000);
          SAMPLE_RATE_SELECTABLE(192000);
          ImGui::EndCombo();
        }

        ImGui::Text("Buffer size");
        ImGui::SameLine();
        String bs=fmt::sprintf("%d (latency: ~%.1fms)",settings.audioBufSize,2000.0*(double)settings.audioBufSize/(double)MAX(1,settings.audioRate));
        if (ImGui::BeginCombo("##BufferSize",bs.c_str())) {
          BUFFER_SIZE_SELECTABLE(64);
          BUFFER_SIZE_SELECTABLE(128);
          BUFFER_SIZE_SELECTABLE(256);
          BUFFER_SIZE_SELECTABLE(512);
          BUFFER_SIZE_SELECTABLE(1024);
          BUFFER_SIZE_SELECTABLE(2048);
          ImGui::EndCombo();
        }
        
        ImGui::Text("Quality");
        ImGui::SameLine();
        ImGui::Combo("##Quality",&settings.audioQuality,audioQualities,2);

        ImGui::Text("Metronome volume");
        ImGui::SameLine();
        if (ImGui::SliderInt("##MetroVol",&settings.metroVol,0,200,"%d%%")) {
          if (settings.metroVol<0) settings.metroVol=0;
          if (settings.metroVol>200) settings.metroVol=200;
          e->setMetronomeVol(((float)settings.metroVol)/100.0f);
        }

        bool lowLatencyB=settings.lowLatency;
        if (ImGui::Checkbox("Low-latency mode (experimental!)",&lowLatencyB)) {
          settings.lowLatency=lowLatencyB;
        }
        if (ImGui::IsItemHovered()) {
          ImGui::SetTooltip("reduces latency by running the engine faster than the tick rate.\nuseful for live playback/jam mode.\n\nwarning: experimental! may produce glitches.\nonly enable if your buffer size is small (10ms or less).");
        }

        bool forceMonoB=settings.forceMono;
        if (ImGui::Checkbox("Force mono audio",&forceMonoB)) {
          settings.forceMono=forceMonoB;
        }

        TAAudioDesc& audioWant=e->getAudioDescWant();
        TAAudioDesc& audioGot=e->getAudioDescGot();

        ImGui::Text("want: %d samples @ %.0fHz",audioWant.bufsize,audioWant.rate);
        ImGui::Text("got: %d samples @ %.0fHz",audioGot.bufsize,audioGot.rate);

        ImGui::Separator();

        ImGui::Text("MIDI input");
        ImGui::SameLine();
        String midiInName=settings.midiInDevice.empty()?"<disabled>":settings.midiInDevice;
        bool hasToReloadMidi=false;
        if (ImGui::BeginCombo("##MidiInDevice",midiInName.c_str())) {
          if (ImGui::Selectable("<disabled>",settings.midiInDevice.empty())) {
            settings.midiInDevice="";
            hasToReloadMidi=true;
          }
          for (String& i: e->getMidiIns()) {
            if (ImGui::Selectable(i.c_str(),i==settings.midiInDevice)) {
              settings.midiInDevice=i;
              hasToReloadMidi=true;
            }
          }
          ImGui::EndCombo();
        }

        if (hasToReloadMidi) {
          midiMap.read(e->getConfigPath()+DIR_SEPARATOR_STR+"midiIn_"+stripName(settings.midiInDevice)+".cfg"); 
          midiMap.compile();
        }

        ImGui::Text("MIDI output");
        ImGui::SameLine();
        String midiOutName=settings.midiOutDevice.empty()?"<disabled>":settings.midiOutDevice;
        if (ImGui::BeginCombo("##MidiOutDevice",midiOutName.c_str())) {
          if (ImGui::Selectable("<disabled>",settings.midiOutDevice.empty())) {
            settings.midiOutDevice="";
          }
          for (String& i: e->getMidiIns()) {
            if (ImGui::Selectable(i.c_str(),i==settings.midiOutDevice)) {
              settings.midiOutDevice=i;
            }
          }
          ImGui::EndCombo();
        }

        if (ImGui::TreeNode("MIDI input settings")) {
          ImGui::Checkbox("Note input",&midiMap.noteInput);
          ImGui::Checkbox("Velocity input",&midiMap.volInput);
          // TODO
          //ImGui::Checkbox("Use raw velocity value (don't map from linear to log)",&midiMap.rawVolume);
          //ImGui::Checkbox("Polyphonic/chord input",&midiMap.polyInput);
          ImGui::Checkbox("Map MIDI channels to direct channels",&midiMap.directChannel);
          ImGui::Checkbox("Program change is instrument selection",&midiMap.programChange);
          //ImGui::Checkbox("Listen to MIDI clock",&midiMap.midiClock);
          //ImGui::Checkbox("Listen to MIDI time code",&midiMap.midiTimeCode);
          ImGui::Combo("Value input style",&midiMap.valueInputStyle,valueInputStyles,7);
          if (midiMap.valueInputStyle>3) {
            if (midiMap.valueInputStyle==6) {
              if (ImGui::InputInt("Control##valueCCS",&midiMap.valueInputControlSingle,1,16)) {
                if (midiMap.valueInputControlSingle<0) midiMap.valueInputControlSingle=0;
                if (midiMap.valueInputControlSingle>127) midiMap.valueInputControlSingle=127;
              }
            } else {
              if (ImGui::InputInt((midiMap.valueInputStyle==4)?"CC of upper nibble##valueCC1":"MSB CC##valueCC1",&midiMap.valueInputControlMSB,1,16)) {
                if (midiMap.valueInputControlMSB<0) midiMap.valueInputControlMSB=0;
                if (midiMap.valueInputControlMSB>127) midiMap.valueInputControlMSB=127;
              }
              if (ImGui::InputInt((midiMap.valueInputStyle==4)?"CC of lower nibble##valueCC2":"LSB CC##valueCC2",&midiMap.valueInputControlLSB,1,16)) {
                if (midiMap.valueInputControlLSB<0) midiMap.valueInputControlLSB=0;
                if (midiMap.valueInputControlLSB>127) midiMap.valueInputControlLSB=127;
              }
            }
          }
          if (ImGui::TreeNode("Per-column control change")) {
            for (int i=0; i<18; i++) {
              ImGui::PushID(i);
              ImGui::Combo(specificControls[i],&midiMap.valueInputSpecificStyle[i],valueSInputStyles,4);
              if (midiMap.valueInputSpecificStyle[i]>0) {
                ImGui::Indent();
                if (midiMap.valueInputSpecificStyle[i]==3) {
                  if (ImGui::InputInt("Control##valueCCS",&midiMap.valueInputSpecificSingle[i],1,16)) {
                    if (midiMap.valueInputSpecificSingle[i]<0) midiMap.valueInputSpecificSingle[i]=0;
                    if (midiMap.valueInputSpecificSingle[i]>127) midiMap.valueInputSpecificSingle[i]=127;
                  }
                } else {
                  if (ImGui::InputInt((midiMap.valueInputSpecificStyle[i]==4)?"CC of upper nibble##valueCC1":"MSB CC##valueCC1",&midiMap.valueInputSpecificMSB[i],1,16)) {
                    if (midiMap.valueInputSpecificMSB[i]<0) midiMap.valueInputSpecificMSB[i]=0;
                    if (midiMap.valueInputSpecificMSB[i]>127) midiMap.valueInputSpecificMSB[i]=127;
                  }
                  if (ImGui::InputInt((midiMap.valueInputSpecificStyle[i]==4)?"CC of lower nibble##valueCC2":"LSB CC##valueCC2",&midiMap.valueInputSpecificLSB[i],1,16)) {
                    if (midiMap.valueInputSpecificLSB[i]<0) midiMap.valueInputSpecificLSB[i]=0;
                    if (midiMap.valueInputSpecificLSB[i]>127) midiMap.valueInputSpecificLSB[i]=127;
                  }
                }
                ImGui::Unindent();
              }
              ImGui::PopID();
            }
            ImGui::TreePop();
          }
          if (ImGui::SliderFloat("Volume curve",&midiMap.volExp,0.01,8.0,"%.2f")) {
            if (midiMap.volExp<0.01) midiMap.volExp=0.01;
            if (midiMap.volExp>8.0) midiMap.volExp=8.0;
          } rightClickable
          float curve[128];
          for (int i=0; i<128; i++) {
            curve[i]=(int)(pow((double)i/127.0,midiMap.volExp)*127.0);
          }
          ImGui::PlotLines("##VolCurveDisplay",curve,128,0,"Volume curve",0.0,127.0,ImVec2(200.0f*dpiScale,200.0f*dpiScale));

          ImGui::Text("Actions:");
          ImGui::SameLine();
          if (ImGui::Button(ICON_FA_PLUS "##AddAction")) {
            midiMap.binds.push_back(MIDIBind());
          }
          ImGui::SameLine();
          if (ImGui::Button(ICON_FA_EXTERNAL_LINK "##AddLearnAction")) {
            midiMap.binds.push_back(MIDIBind());
            learning=midiMap.binds.size()-1;
          }
          if (learning!=-1) {
            ImGui::SameLine();
            ImGui::Text("(learning! press a button or move a slider/knob/something on your device.)");
          }

          if (ImGui::BeginTable("MIDIActions",7)) {
            ImGui::TableSetupColumn("c0",ImGuiTableColumnFlags_WidthStretch,0.2);
            ImGui::TableSetupColumn("c1",ImGuiTableColumnFlags_WidthStretch,0.1);
            ImGui::TableSetupColumn("c2",ImGuiTableColumnFlags_WidthStretch,0.3);
            ImGui::TableSetupColumn("c3",ImGuiTableColumnFlags_WidthStretch,0.2);
            ImGui::TableSetupColumn("c4",ImGuiTableColumnFlags_WidthStretch,0.5);
            ImGui::TableSetupColumn("c5",ImGuiTableColumnFlags_WidthFixed);
            ImGui::TableSetupColumn("c6",ImGuiTableColumnFlags_WidthFixed);

            ImGui::TableNextRow(ImGuiTableRowFlags_Headers);
            ImGui::TableNextColumn();
            ImGui::Text("Type");
            ImGui::TableNextColumn();
            ImGui::Text("Channel");
            ImGui::TableNextColumn();
            ImGui::Text("Note/Control");
            ImGui::TableNextColumn();
            ImGui::Text("Velocity/Value");
            ImGui::TableNextColumn();
            ImGui::Text("Action");
            ImGui::TableNextColumn();
            ImGui::Text("Learn");
            ImGui::TableNextColumn();
            ImGui::Text("Remove");

            for (size_t i=0; i<midiMap.binds.size(); i++) {
              MIDIBind& bind=midiMap.binds[i];
              char bindID[1024];
              ImGui::PushID(i);
              ImGui::TableNextRow();

              ImGui::TableNextColumn();
              ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
              if (ImGui::BeginCombo("##BType",messageTypes[bind.type])) {
                for (int j=8; j<15; j++) {
                  if (ImGui::Selectable(messageTypes[j],bind.type==j)) {
                    bind.type=j;
                  }
                }
                ImGui::EndCombo();
              }

              ImGui::TableNextColumn();
              ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
              if (ImGui::BeginCombo("##BChannel",messageChannels[bind.channel])) {
                if (ImGui::Selectable(messageChannels[16],bind.channel==16)) {
                  bind.channel=16;
                }
                for (int j=0; j<16; j++) {
                  if (ImGui::Selectable(messageChannels[j],bind.channel==j)) {
                    bind.channel=j;
                  }
                }
                ImGui::EndCombo();
              }

              ImGui::TableNextColumn();
              if (bind.data1==128) {
                snprintf(bindID,1024,"Any");
              } else {
                const char* nName="???";
                if ((bind.data1+60)>0 && (bind.data1+60)<180) {
                  nName=noteNames[bind.data1+60];
                }
                snprintf(bindID,1024,"%d (0x%.2X, %s)",bind.data1,bind.data1,nName);
              }
              ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
              if (ImGui::BeginCombo("##BValue1",bindID)) {
                if (ImGui::Selectable("Any",bind.data1==128)) {
                  bind.data1=128;
                }
                for (int j=0; j<128; j++) {
                  const char* nName="???";
                  if ((j+60)>0 && (j+60)<180) {
                    nName=noteNames[j+60];
                  }
                  snprintf(bindID,1024,"%d (0x%.2X, %s)##BV1_%d",j,j,nName,j);
                  if (ImGui::Selectable(bindID,bind.data1==j)) {
                    bind.data1=j;
                  }
                }
                ImGui::EndCombo();
              }

              ImGui::TableNextColumn();
              if (bind.data2==128) {
                snprintf(bindID,1024,"Any");
              } else {
                snprintf(bindID,1024,"%d (0x%.2X)",bind.data2,bind.data2);
              }
              ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
              if (ImGui::BeginCombo("##BValue2",bindID)) {
                if (ImGui::Selectable("Any",bind.data2==128)) {
                  bind.data2=128;
                }
                for (int j=0; j<128; j++) {
                  snprintf(bindID,1024,"%d (0x%.2X)##BV2_%d",j,j,j);
                  if (ImGui::Selectable(bindID,bind.data2==j)) {
                    bind.data2=j;
                  }
                }
                ImGui::EndCombo();
              }

              ImGui::TableNextColumn();
              ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
              if (ImGui::BeginCombo("##BAction",(bind.action==0)?"--none--":guiActions[bind.action].friendlyName)) {
                if (ImGui::Selectable("--none--",bind.action==0)) {
                  bind.action=0;
                }
                for (int j=0; j<GUI_ACTION_MAX; j++) {
                  if (strcmp(guiActions[j].friendlyName,"")==0) continue;
                  if (strstr(guiActions[j].friendlyName,"---")==guiActions[j].friendlyName) {
                    ImGui::TextUnformatted(guiActions[j].friendlyName);
                  } else {
                    snprintf(bindID,1024,"%s##BA_%d",guiActions[j].friendlyName,j);
                    if (ImGui::Selectable(bindID,bind.action==j)) {
                      bind.action=j;
                    }
                  }
                }
                ImGui::EndCombo();
              }

              ImGui::TableNextColumn();
              if (ImGui::Button((learning==(int)i)?("waiting...##BLearn"):(ICON_FA_SQUARE_O "##BLearn"))) {
                if (learning==(int)i) {
                  learning=-1;
                } else {
                  learning=i;
                }
              }

              ImGui::TableNextColumn();
              if (ImGui::Button(ICON_FA_TIMES "##BRemove")) {
                midiMap.binds.erase(midiMap.binds.begin()+i);
                if (learning==(int)i) learning=-1;
                i--;
              }

              ImGui::PopID();
            }
            ImGui::EndTable();
          }

          ImGui::TreePop();
        }

        ImGui::EndTabItem();
      }
      if (ImGui::BeginTabItem("Emulation")) {
        ImGui::Text("Arcade/YM2151 core");
        ImGui::SameLine();
        ImGui::Combo("##ArcadeCore",&settings.arcadeCore,arcadeCores,2);

        ImGui::Text("Genesis/YM2612 core");
        ImGui::SameLine();
        ImGui::Combo("##YM2612Core",&settings.ym2612Core,ym2612Cores,2);

        ImGui::Text("SAA1099 core");
        ImGui::SameLine();
        ImGui::Combo("##SAACore",&settings.saaCore,saaCores,2);

        ImGui::EndTabItem();
      }
      if (ImGui::BeginTabItem("Appearance")) {
        bool dpiScaleAuto=(settings.dpiScale<0.5f);
        if (ImGui::Checkbox("Automatic UI scaling factor",&dpiScaleAuto)) {
          if (dpiScaleAuto) {
            settings.dpiScale=0.0f;
          } else {
            settings.dpiScale=1.0f;
          }
        }
        if (!dpiScaleAuto) {
          if (ImGui::SliderFloat("UI scaling factor",&settings.dpiScale,1.0f,3.0f,"%.2fx")) {
            if (settings.dpiScale<0.5f) settings.dpiScale=0.5f;
            if (settings.dpiScale>3.0f) settings.dpiScale=3.0f;
          } rightClickable
        }
        ImGui::Text("Main font");
        ImGui::SameLine();
        ImGui::Combo("##MainFont",&settings.mainFont,mainFonts,7);
        if (settings.mainFont==6) {
          ImGui::InputText("##MainFontPath",&settings.mainFontPath);
          ImGui::SameLine();
          if (ImGui::Button(ICON_FA_FOLDER "##MainFontLoad")) {
            openFileDialog(GUI_FILE_LOAD_MAIN_FONT);
          }
        }
        if (ImGui::InputInt("Size##MainFontSize",&settings.mainFontSize)) {
          if (settings.mainFontSize<3) settings.mainFontSize=3;
          if (settings.mainFontSize>96) settings.mainFontSize=96;
        }
        ImGui::Text("Pattern font");
        ImGui::SameLine();
        ImGui::Combo("##PatFont",&settings.patFont,patFonts,7);
        if (settings.patFont==6) {
          ImGui::InputText("##PatFontPath",&settings.patFontPath);
          ImGui::SameLine();
          if (ImGui::Button(ICON_FA_FOLDER "##PatFontLoad")) {
            openFileDialog(GUI_FILE_LOAD_PAT_FONT);
          }
        }
        if (ImGui::InputInt("Size##PatFontSize",&settings.patFontSize)) {
          if (settings.patFontSize<3) settings.patFontSize=3;
          if (settings.patFontSize>96) settings.patFontSize=96;
        }

        bool loadJapaneseB=settings.loadJapanese;
        if (ImGui::Checkbox("Display Japanese characters",&loadJapaneseB)) {
          settings.loadJapanese=loadJapaneseB;
        }
        if (ImGui::IsItemHovered()) {
          ImGui::SetTooltip(
            "Only toggle this option if you have enough graphics memory.\n"
            "This is a temporary solution until dynamic font atlas is implemented in Dear ImGui.\n\n"
            "このオプションは、十分なグラフィックメモリがある場合にのみ切り替えてください。\n"
            "これは、Dear ImGuiにダイナミックフォントアトラスが実装されるまでの一時的な解決策です。"
          );
        }

        ImGui::Separator();

        ImGui::Text("Orders row number format:");
        if (ImGui::RadioButton("Decimal##orbD",settings.orderRowsBase==0)) {
          settings.orderRowsBase=0;
        }
        if (ImGui::RadioButton("Hexadecimal##orbH",settings.orderRowsBase==1)) {
          settings.orderRowsBase=1;
        }

        ImGui::Text("Pattern row number format:");
        if (ImGui::RadioButton("Decimal##prbD",settings.patRowsBase==0)) {
          settings.patRowsBase=0;
        }
        if (ImGui::RadioButton("Hexadecimal##prbH",settings.patRowsBase==1)) {
          settings.patRowsBase=1;
        }

        ImGui::Text("FM parameter names:");
        if (ImGui::RadioButton("Friendly##fmn0",settings.fmNames==0)) {
          settings.fmNames=0;
        }
        if (ImGui::RadioButton("Technical##fmn1",settings.fmNames==1)) {
          settings.fmNames=1;
        }
        if (ImGui::RadioButton("Technical (alternate)##fmn2",settings.fmNames==2)) {
          settings.fmNames=2;
        }

        ImGui::Separator();

        ImGui::Text("Title bar:");
        if (ImGui::RadioButton("Furnace##tbar0",settings.titleBarInfo==0)) {
          settings.titleBarInfo=0;
          updateWindowTitle();
        }
        if (ImGui::RadioButton("Song Name - Furnace##tbar1",settings.titleBarInfo==1)) {
          settings.titleBarInfo=1;
          updateWindowTitle();
        }
        if (ImGui::RadioButton("file_name.fur - Furnace##tbar2",settings.titleBarInfo==2)) {
          settings.titleBarInfo=2;
          updateWindowTitle();
        }
        if (ImGui::RadioButton("/path/to/file.fur - Furnace##tbar3",settings.titleBarInfo==3)) {
          settings.titleBarInfo=3;
          updateWindowTitle();
        }

        bool titleBarSysB=settings.titleBarSys;
        if (ImGui::Checkbox("Display system name on title bar",&titleBarSysB)) {
          settings.titleBarSys=titleBarSysB;
          updateWindowTitle();
        }

        ImGui::Text("Status bar:");
        if (ImGui::RadioButton("Cursor details##sbar0",settings.statusDisplay==0)) {
          settings.statusDisplay=0;
        }
        if (ImGui::RadioButton("File path##sbar1",settings.statusDisplay==1)) {
          settings.statusDisplay=1;
        }
        if (ImGui::RadioButton("Cursor details or file path##sbar2",settings.statusDisplay==2)) {
          settings.statusDisplay=2;
        }
        if (ImGui::RadioButton("Nothing##sbar3",settings.statusDisplay==3)) {
          settings.statusDisplay=3;
        }

        ImGui::Text("Play/edit controls layout:");
        if (ImGui::RadioButton("Classic##ecl0",settings.controlLayout==0)) {
          settings.controlLayout=0;
        }
        if (ImGui::RadioButton("Compact##ecl1",settings.controlLayout==1)) {
          settings.controlLayout=1;
        }
        if (ImGui::RadioButton("Compact (vertical)##ecl2",settings.controlLayout==2)) {
          settings.controlLayout=2;
        }
        if (ImGui::RadioButton("Split##ecl3",settings.controlLayout==3)) {
          settings.controlLayout=3;
        }

        ImGui::Text("FM parameter editor layout:");
        if (ImGui::RadioButton("Modern##fml0",settings.fmLayout==0)) {
          settings.fmLayout=0;
        }
        if (ImGui::RadioButton("Compact (2x2, classic)##fml1",settings.fmLayout==1)) {
          settings.fmLayout=1;
        }
        if (ImGui::RadioButton("Compact (1x4)##fml2",settings.fmLayout==2)) {
          settings.fmLayout=2;
        }
        if (ImGui::RadioButton("Compact (4x1)##fml3",settings.fmLayout==3)) {
          settings.fmLayout=3;
        }

        ImGui::Text("Position of Sustain in FM editor:");
        if (ImGui::RadioButton("Between Decay and Sustain Rate##susp0",settings.susPosition==0)) {
          settings.susPosition=0;
        }
        if (ImGui::RadioButton("After Release Rate##susp1",settings.susPosition==1)) {
          settings.susPosition=1;
        }

        ImGui::Separator();

        bool insEditColorizeB=settings.insEditColorize;
        if (ImGui::Checkbox("Colorize instrument editor using instrument type",&insEditColorizeB)) {
          settings.insEditColorize=insEditColorizeB;
        }

        bool separateFMColorsB=settings.separateFMColors;
        if (ImGui::Checkbox("Use separate colors for carriers/modulators in FM editor",&separateFMColorsB)) {
          settings.separateFMColors=separateFMColorsB;
        }

        bool macroViewB=settings.macroView;
        if (ImGui::Checkbox("Classic macro view (standard macros only; deprecated!)",&macroViewB)) {
          settings.macroView=macroViewB;
        }

        bool unifiedDataViewB=settings.unifiedDataView;
        if (ImGui::Checkbox("Unified instrument/wavetable/sample list",&unifiedDataViewB)) {
          settings.unifiedDataView=unifiedDataViewB;
        }

        bool chipNamesB=settings.chipNames;
        if (ImGui::Checkbox("Use chip names instead of system names",&chipNamesB)) {
          settings.chipNames=chipNamesB;
        }

        bool oplStandardWaveNamesB=settings.oplStandardWaveNames;
        if (ImGui::Checkbox("Use standard OPL waveform names",&oplStandardWaveNamesB)) {
          settings.oplStandardWaveNames=oplStandardWaveNamesB;
        }

        bool overflowHighlightB=settings.overflowHighlight;
        if (ImGui::Checkbox("Overflow pattern highlights",&overflowHighlightB)) {
          settings.overflowHighlight=overflowHighlightB;
        }

        bool viewPrevPatternB=settings.viewPrevPattern;
        if (ImGui::Checkbox("Display previous/next pattern",&viewPrevPatternB)) {
          settings.viewPrevPattern=viewPrevPatternB;
        }

        bool germanNotationB=settings.germanNotation;
        if (ImGui::Checkbox("Use German notation",&germanNotationB)) {
          settings.germanNotation=germanNotationB;
        }
        
        // sorry. temporarily disabled until ImGui has a way to add separators in tables arbitrarily.
        /*bool sysSeparatorsB=settings.sysSeparators;
        if (ImGui::Checkbox("Add separators between systems in Orders",&sysSeparatorsB)) {
          settings.sysSeparators=sysSeparatorsB;
        }*/

        bool partyTimeB=settings.partyTime;
        if (ImGui::Checkbox("About screen party time",&partyTimeB)) {
          settings.partyTime=partyTimeB;
        }
        if (ImGui::IsItemHovered()) {
          ImGui::SetTooltip("Warning: may cause epileptic seizures.");
        }

        ImGui::Separator();

        bool sampleLayoutB=settings.sampleLayout;
        if (ImGui::Checkbox("Use compact sample editor",&sampleLayoutB)) {
          settings.sampleLayout=sampleLayoutB;
        }

        bool roundedWindowsB=settings.roundedWindows;
        if (ImGui::Checkbox("Rounded window corners",&roundedWindowsB)) {
          settings.roundedWindows=roundedWindowsB;
        }

        bool roundedButtonsB=settings.roundedButtons;
        if (ImGui::Checkbox("Rounded buttons",&roundedButtonsB)) {
          settings.roundedButtons=roundedButtonsB;
        }

        bool roundedMenusB=settings.roundedMenus;
        if (ImGui::Checkbox("Rounded menu corners",&roundedMenusB)) {
          settings.roundedMenus=roundedMenusB;
        }

        bool frameBordersB=settings.frameBorders;
        if (ImGui::Checkbox("Borders around widgets",&frameBordersB)) {
          settings.frameBorders=frameBordersB;
        }

        ImGui::Separator();

        ImGui::Text("Oscilloscope settings:");

        bool oscRoundedCornersB=settings.oscRoundedCorners;
        if (ImGui::Checkbox("Rounded corners",&oscRoundedCornersB)) {
          settings.oscRoundedCorners=oscRoundedCornersB;
        }

        bool oscTakesEntireWindowB=settings.oscTakesEntireWindow;
        if (ImGui::Checkbox("Fill entire window",&oscTakesEntireWindowB)) {
          settings.oscTakesEntireWindow=oscTakesEntireWindowB;
        }

        bool oscBorderB=settings.oscBorder;
        if (ImGui::Checkbox("Border",&oscBorderB)) {
          settings.oscBorder=oscBorderB;
        }

        ImGui::Separator();

        if (ImGui::TreeNode("Color scheme")) {
          if (ImGui::Button("Import")) {
            openFileDialog(GUI_FILE_IMPORT_COLORS);
          }
          ImGui::SameLine();
          if (ImGui::Button("Export")) {
            openFileDialog(GUI_FILE_EXPORT_COLORS);
          }
          ImGui::SameLine();
          if (ImGui::Button("Reset defaults")) {
            showWarning("Are you sure you want to reset the color scheme?",GUI_WARN_RESET_COLORS);
          }
          if (ImGui::TreeNode("General")) {
            ImGui::Text("Color scheme type:");
            if (ImGui::RadioButton("Dark##gcb0",settings.guiColorsBase==0)) {
              settings.guiColorsBase=0;
            }
            if (ImGui::RadioButton("Light##gcb1",settings.guiColorsBase==1)) {
              settings.guiColorsBase=1;
            }
            UI_COLOR_CONFIG(GUI_COLOR_BACKGROUND,"Background");
            UI_COLOR_CONFIG(GUI_COLOR_FRAME_BACKGROUND,"Window background");
            UI_COLOR_CONFIG(GUI_COLOR_MODAL_BACKDROP,"Modal backdrop");
            UI_COLOR_CONFIG(GUI_COLOR_HEADER,"Header");
            UI_COLOR_CONFIG(GUI_COLOR_TEXT,"Text");
            UI_COLOR_CONFIG(GUI_COLOR_ACCENT_PRIMARY,"Primary");
            UI_COLOR_CONFIG(GUI_COLOR_ACCENT_SECONDARY,"Secondary");
            UI_COLOR_CONFIG(GUI_COLOR_BORDER,"Border");
            UI_COLOR_CONFIG(GUI_COLOR_BORDER_SHADOW,"Border shadow");
            UI_COLOR_CONFIG(GUI_COLOR_TOGGLE_ON,"Toggle on");
            UI_COLOR_CONFIG(GUI_COLOR_TOGGLE_OFF,"Toggle off");
            UI_COLOR_CONFIG(GUI_COLOR_EDITING,"Editing");
            UI_COLOR_CONFIG(GUI_COLOR_SONG_LOOP,"Song loop");
            UI_COLOR_CONFIG(GUI_COLOR_PLAYBACK_STAT,"Playback status");
            ImGui::TreePop();
          }
          if (ImGui::TreeNode("File Picker (built-in)")) {
            UI_COLOR_CONFIG(GUI_COLOR_FILE_DIR,"Directory");
            UI_COLOR_CONFIG(GUI_COLOR_FILE_SONG_NATIVE,"Song (native)");
            UI_COLOR_CONFIG(GUI_COLOR_FILE_SONG_IMPORT,"Song (import)");
            UI_COLOR_CONFIG(GUI_COLOR_FILE_INSTR,"Instrument");
            UI_COLOR_CONFIG(GUI_COLOR_FILE_AUDIO,"Audio");
            UI_COLOR_CONFIG(GUI_COLOR_FILE_WAVE,"Wavetable");
            UI_COLOR_CONFIG(GUI_COLOR_FILE_VGM,"VGM");
            UI_COLOR_CONFIG(GUI_COLOR_FILE_FONT,"Font");
            UI_COLOR_CONFIG(GUI_COLOR_FILE_OTHER,"Other");
            ImGui::TreePop();
          }
          if (ImGui::TreeNode("Oscilloscope")) {
            UI_COLOR_CONFIG(GUI_COLOR_OSC_BORDER,"Border");
            UI_COLOR_CONFIG(GUI_COLOR_OSC_BG1,"Background (top-left)");
            UI_COLOR_CONFIG(GUI_COLOR_OSC_BG2,"Background (top-right)");
            UI_COLOR_CONFIG(GUI_COLOR_OSC_BG3,"Background (bottom-left)");
            UI_COLOR_CONFIG(GUI_COLOR_OSC_BG4,"Background (bottom-right)");
            UI_COLOR_CONFIG(GUI_COLOR_OSC_WAVE,"Waveform");
            UI_COLOR_CONFIG(GUI_COLOR_OSC_WAVE_PEAK,"Waveform (clip)");
            UI_COLOR_CONFIG(GUI_COLOR_OSC_REF,"Reference");
            UI_COLOR_CONFIG(GUI_COLOR_OSC_GUIDE,"Guide");
            ImGui::TreePop();
          }
          if (ImGui::TreeNode("Volume Meter")) {
            UI_COLOR_CONFIG(GUI_COLOR_VOLMETER_LOW,"Low");
            UI_COLOR_CONFIG(GUI_COLOR_VOLMETER_HIGH,"High");
            UI_COLOR_CONFIG(GUI_COLOR_VOLMETER_PEAK,"Clip");
            ImGui::TreePop();
          }
          if (ImGui::TreeNode("Orders")) {
            UI_COLOR_CONFIG(GUI_COLOR_ORDER_ROW_INDEX,"Order number");
            UI_COLOR_CONFIG(GUI_COLOR_ORDER_ACTIVE,"Current order background");
            UI_COLOR_CONFIG(GUI_COLOR_ORDER_SIMILAR,"Similar patterns");
            UI_COLOR_CONFIG(GUI_COLOR_ORDER_INACTIVE,"Inactive patterns");
            ImGui::TreePop();
          }
          if (ImGui::TreeNode("Envelope View")) {
            UI_COLOR_CONFIG(GUI_COLOR_FM_ENVELOPE,"Envelope");
            UI_COLOR_CONFIG(GUI_COLOR_FM_ENVELOPE_SUS_GUIDE,"Sustain guide");
            UI_COLOR_CONFIG(GUI_COLOR_FM_ENVELOPE_RELEASE,"Release");

            ImGui::TreePop();
          }
          if (ImGui::TreeNode("FM Editor")) {
            UI_COLOR_CONFIG(GUI_COLOR_FM_ALG_BG,"Algorithm background");
            UI_COLOR_CONFIG(GUI_COLOR_FM_ALG_LINE,"Algorithm lines");
            UI_COLOR_CONFIG(GUI_COLOR_FM_MOD,"Modulator");
            UI_COLOR_CONFIG(GUI_COLOR_FM_CAR,"Carrier");

            UI_COLOR_CONFIG(GUI_COLOR_FM_SSG,"SSG-EG");
            UI_COLOR_CONFIG(GUI_COLOR_FM_WAVE,"Waveform");

            ImGui::TextWrapped("(the following colors only apply when \"Use separate colors for carriers/modulators in FM editor\" is on!)");

            UI_COLOR_CONFIG(GUI_COLOR_FM_PRIMARY_MOD,"Mod. accent (primary)");
            UI_COLOR_CONFIG(GUI_COLOR_FM_SECONDARY_MOD,"Mod. accent (secondary)");
            UI_COLOR_CONFIG(GUI_COLOR_FM_BORDER_MOD,"Mod. border");
            UI_COLOR_CONFIG(GUI_COLOR_FM_BORDER_SHADOW_MOD,"Mod. border shadow");
            
            UI_COLOR_CONFIG(GUI_COLOR_FM_PRIMARY_CAR,"Car. accent (primary");
            UI_COLOR_CONFIG(GUI_COLOR_FM_SECONDARY_CAR,"Car. accent (secondary)");
            UI_COLOR_CONFIG(GUI_COLOR_FM_BORDER_CAR,"Car. border");
            UI_COLOR_CONFIG(GUI_COLOR_FM_BORDER_SHADOW_CAR,"Car. border shadow");
            
            ImGui::TreePop();
          }
          if (ImGui::TreeNode("Macro Editor")) {
            UI_COLOR_CONFIG(GUI_COLOR_MACRO_VOLUME,"Volume");
            UI_COLOR_CONFIG(GUI_COLOR_MACRO_PITCH,"Pitch");
            UI_COLOR_CONFIG(GUI_COLOR_MACRO_WAVE,"Wave");
            UI_COLOR_CONFIG(GUI_COLOR_MACRO_OTHER,"Other");
            ImGui::TreePop();
          }
          if (ImGui::TreeNode("Instrument Types")) {
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_FM,"FM (4-operator)");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_STD,"Standard");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_GB,"Game Boy");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_C64,"C64");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_AMIGA,"Amiga/Sample");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_PCE,"PC Engine");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_AY,"AY-3-8910/SSG");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_AY8930,"AY8930");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_TIA,"TIA");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_SAA1099,"SAA1099");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_VIC,"VIC");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_PET,"PET");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_VRC6,"VRC6");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_VRC6_SAW,"VRC6 (saw)");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_OPLL,"FM (OPLL)");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_OPL,"FM (OPL)");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_FDS,"FDS");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_VBOY,"Virtual Boy");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_N163,"Namco 163");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_SCC,"Konami SCC");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_OPZ,"FM (OPZ)");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_POKEY,"POKEY");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_BEEPER,"PC Beeper");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_SWAN,"WonderSwan");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_MIKEY,"Lynx");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_VERA,"VERA");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_X1_010,"X1-010");
            UI_COLOR_CONFIG(GUI_COLOR_INSTR_UNKNOWN,"Other/Unknown");
            ImGui::TreePop();
          }
          if (ImGui::TreeNode("Channel")) {
            UI_COLOR_CONFIG(GUI_COLOR_CHANNEL_FM,"FM");
            UI_COLOR_CONFIG(GUI_COLOR_CHANNEL_PULSE,"Pulse");
            UI_COLOR_CONFIG(GUI_COLOR_CHANNEL_NOISE,"Noise");
            UI_COLOR_CONFIG(GUI_COLOR_CHANNEL_PCM,"PCM");
            UI_COLOR_CONFIG(GUI_COLOR_CHANNEL_WAVE,"Wave");
            UI_COLOR_CONFIG(GUI_COLOR_CHANNEL_OP,"FM operator");
            UI_COLOR_CONFIG(GUI_COLOR_CHANNEL_MUTED,"Muted");
            ImGui::TreePop();
          }
          if (ImGui::TreeNode("Pattern")) {
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_PLAY_HEAD,"Playhead");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_CURSOR,"Cursor");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_CURSOR_HOVER,"Cursor (hovered)");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_CURSOR_ACTIVE,"Cursor (clicked)");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_SELECTION,"Selection");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_SELECTION_HOVER,"Selection (hovered)");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_SELECTION_ACTIVE,"Selection (clicked)");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_HI_1,"Highlight 1");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_HI_2,"Highlight 2");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_ROW_INDEX,"Row number");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_ROW_INDEX_HI1,"Row number (highlight 1)");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_ROW_INDEX_HI2,"Row number (highlight 2)");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_ACTIVE,"Note");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_ACTIVE_HI1,"Note (highlight 1)");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_ACTIVE_HI2,"Note (highlight 2)");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_INACTIVE,"Blank");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_INACTIVE_HI1,"Blank (highlight 1)");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_INACTIVE_HI2,"Blank (highlight 2)");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_INS,"Instrument");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_INS_WARN,"Instrument (invalid type)");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_INS_ERROR,"Instrument (out of range)");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_VOLUME_MIN,"Volume (0%)");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_VOLUME_HALF,"Volume (50%)");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_VOLUME_MAX,"Volume (100%)");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_EFFECT_INVALID,"Invalid effect");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_EFFECT_PITCH,"Pitch effect");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_EFFECT_VOLUME,"Volume effect");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_EFFECT_PANNING,"Panning effect");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_EFFECT_SONG,"Song effect");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_EFFECT_TIME,"Time effect");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_EFFECT_SPEED,"Speed effect");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,"Primary system effect");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY,"Secondary system effect");
            UI_COLOR_CONFIG(GUI_COLOR_PATTERN_EFFECT_MISC,"Miscellaneous");
            UI_COLOR_CONFIG(GUI_COLOR_EE_VALUE,"External command output");
            ImGui::TreePop();
          }
          if (ImGui::TreeNode("Log Viewer")) {
            UI_COLOR_CONFIG(GUI_COLOR_LOGLEVEL_ERROR,"Log level: Error");
            UI_COLOR_CONFIG(GUI_COLOR_LOGLEVEL_WARNING,"Log level: Warning");
            UI_COLOR_CONFIG(GUI_COLOR_LOGLEVEL_INFO,"Log level: Info");
            UI_COLOR_CONFIG(GUI_COLOR_LOGLEVEL_DEBUG,"Log level: Debug");
            UI_COLOR_CONFIG(GUI_COLOR_LOGLEVEL_TRACE,"Log level: Trace/Verbose");
            ImGui::TreePop();
          }
          ImGui::TreePop();
        }

        ImGui::EndTabItem();
      }
      if (ImGui::BeginTabItem("Keyboard")) {
        if (ImGui::Button("Import")) {
          openFileDialog(GUI_FILE_IMPORT_KEYBINDS);
        }
        ImGui::SameLine();
        if (ImGui::Button("Export")) {
          openFileDialog(GUI_FILE_EXPORT_KEYBINDS);
        }
        ImGui::SameLine();
        if (ImGui::Button("Reset defaults")) {
          showWarning("Are you sure you want to reset the keyboard settings?",GUI_WARN_RESET_KEYBINDS);
        }
        if (ImGui::TreeNode("Global hotkeys")) {
          KEYBIND_CONFIG_BEGIN("keysGlobal");

          UI_KEYBIND_CONFIG(GUI_ACTION_OPEN);
          UI_KEYBIND_CONFIG(GUI_ACTION_OPEN_BACKUP);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAVE);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAVE_AS);
          UI_KEYBIND_CONFIG(GUI_ACTION_UNDO);
          UI_KEYBIND_CONFIG(GUI_ACTION_REDO);
          UI_KEYBIND_CONFIG(GUI_ACTION_PLAY_TOGGLE);
          UI_KEYBIND_CONFIG(GUI_ACTION_PLAY);
          UI_KEYBIND_CONFIG(GUI_ACTION_STOP);
          UI_KEYBIND_CONFIG(GUI_ACTION_PLAY_REPEAT);
          UI_KEYBIND_CONFIG(GUI_ACTION_PLAY_CURSOR);
          UI_KEYBIND_CONFIG(GUI_ACTION_STEP_ONE);
          UI_KEYBIND_CONFIG(GUI_ACTION_OCTAVE_UP);
          UI_KEYBIND_CONFIG(GUI_ACTION_OCTAVE_DOWN);
          UI_KEYBIND_CONFIG(GUI_ACTION_INS_UP);
          UI_KEYBIND_CONFIG(GUI_ACTION_INS_DOWN);
          UI_KEYBIND_CONFIG(GUI_ACTION_STEP_UP);
          UI_KEYBIND_CONFIG(GUI_ACTION_STEP_DOWN);
          UI_KEYBIND_CONFIG(GUI_ACTION_TOGGLE_EDIT);
          UI_KEYBIND_CONFIG(GUI_ACTION_METRONOME);
          UI_KEYBIND_CONFIG(GUI_ACTION_REPEAT_PATTERN);
          UI_KEYBIND_CONFIG(GUI_ACTION_FOLLOW_ORDERS);
          UI_KEYBIND_CONFIG(GUI_ACTION_FOLLOW_PATTERN);
          UI_KEYBIND_CONFIG(GUI_ACTION_FULLSCREEN);
          UI_KEYBIND_CONFIG(GUI_ACTION_PANIC);

          KEYBIND_CONFIG_END;
          ImGui::TreePop();
        }
        if (ImGui::TreeNode("Window activation")) {
          KEYBIND_CONFIG_BEGIN("keysWindow");

          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_EDIT_CONTROLS);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_ORDERS);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_INS_LIST);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_INS_EDIT);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_SONG_INFO);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_PATTERN);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_WAVE_LIST);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_WAVE_EDIT);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_SAMPLE_LIST);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_SAMPLE_EDIT);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_ABOUT);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_SETTINGS);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_MIXER);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_DEBUG);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_OSCILLOSCOPE);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_VOL_METER);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_STATS);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_COMPAT_FLAGS);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_PIANO);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_NOTES);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_CHANNELS);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_REGISTER_VIEW);
          UI_KEYBIND_CONFIG(GUI_ACTION_WINDOW_LOG);

          UI_KEYBIND_CONFIG(GUI_ACTION_COLLAPSE_WINDOW);
          UI_KEYBIND_CONFIG(GUI_ACTION_CLOSE_WINDOW);

          KEYBIND_CONFIG_END;
          ImGui::TreePop();
        }
        if (ImGui::TreeNode("Note input")) {
          std::vector<MappedInput> sorted;
          if (ImGui::BeginTable("keysNoteInput",4)) {
            for (std::map<int,int>::value_type& i: noteKeys) {
              std::vector<MappedInput>::iterator j;
              for (j=sorted.begin(); j!=sorted.end(); j++) {
                if (j->val>i.second) {
                  break;
                }
              }
              sorted.insert(j,MappedInput(i.first,i.second));
            }

            static char id[4096];

            ImGui::TableNextRow(ImGuiTableRowFlags_Headers);
            ImGui::TableNextColumn();
            ImGui::Text("Key");
            ImGui::TableNextColumn();
            ImGui::Text("Type");
            ImGui::TableNextColumn();
            ImGui::Text("Value");
            ImGui::TableNextColumn();
            ImGui::Text("Remove");

            for (MappedInput& i: sorted) {
              ImGui::TableNextRow();
              ImGui::TableNextColumn();
              ImGui::Text("%s",SDL_GetScancodeName((SDL_Scancode)i.scan));
              ImGui::TableNextColumn();
              if (i.val==102) {
                snprintf(id,4095,"Envelope release##SNType_%d",i.scan);
                if (ImGui::Button(id)) {
                  noteKeys[i.scan]=0;
                }
              } else if (i.val==101) {
                snprintf(id,4095,"Note release##SNType_%d",i.scan);
                if (ImGui::Button(id)) {
                  noteKeys[i.scan]=102;
                }
              } else if (i.val==100) {
                snprintf(id,4095,"Note off##SNType_%d",i.scan);
                if (ImGui::Button(id)) {
                  noteKeys[i.scan]=101;
                }
              } else {
                snprintf(id,4095,"Note##SNType_%d",i.scan);
                if (ImGui::Button(id)) {
                  noteKeys[i.scan]=100;
                }
              }
              ImGui::TableNextColumn();
              if (i.val<100) {
                snprintf(id,4095,"##SNValue_%d",i.scan);
                if (ImGui::InputInt(id,&i.val,1,1)) {
                  if (i.val<0) i.val=0;
                  if (i.val>96) i.val=96;
                  noteKeys[i.scan]=i.val;
                }
              }
              ImGui::TableNextColumn();
              snprintf(id,4095,ICON_FA_TIMES "##SNRemove_%d",i.scan);
              if (ImGui::Button(id)) {
                noteKeys.erase(i.scan);
              }
            }
            ImGui::EndTable();

            if (ImGui::BeginCombo("##SNAddNew","Add...")) {
              for (int i=0; i<SDL_NUM_SCANCODES; i++) {
                const char* sName=SDL_GetScancodeName((SDL_Scancode)i);
                if (sName==NULL) continue;
                if (sName[0]==0) continue;
                snprintf(id,4095,"%s##SNNewKey_%d",sName,i);
                if (ImGui::Selectable(id)) {
                  noteKeys[(SDL_Scancode)i]=0;
                }
              }
              ImGui::EndCombo();
            }
          }
          ImGui::TreePop();
        }
        if (ImGui::TreeNode("Pattern")) {
          KEYBIND_CONFIG_BEGIN("keysPattern");

          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_NOTE_UP);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_NOTE_DOWN);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_OCTAVE_UP);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_OCTAVE_DOWN);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_SELECT_ALL);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_CUT);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_COPY);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_PASTE);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_PASTE_MIX);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_PASTE_MIX_BG);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_PASTE_FLOOD);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_PASTE_OVERFLOW);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_CURSOR_UP);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_CURSOR_DOWN);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_CURSOR_LEFT);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_CURSOR_RIGHT);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_CURSOR_UP_ONE);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_CURSOR_DOWN_ONE);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_CURSOR_LEFT_CHANNEL);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_CURSOR_RIGHT_CHANNEL);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_CURSOR_PREVIOUS_CHANNEL);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_CURSOR_NEXT_CHANNEL);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_CURSOR_BEGIN);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_CURSOR_END);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_CURSOR_UP_COARSE);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_CURSOR_DOWN_COARSE);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_SELECTION_UP);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_SELECTION_DOWN);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_SELECTION_LEFT);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_SELECTION_RIGHT);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_SELECTION_UP_ONE);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_SELECTION_DOWN_ONE);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_SELECTION_BEGIN);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_SELECTION_END);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_SELECTION_UP_COARSE);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_SELECTION_DOWN_COARSE);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_DELETE);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_PULL_DELETE);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_INSERT);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_MUTE_CURSOR);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_SOLO_CURSOR);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_UNMUTE_ALL);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_NEXT_ORDER);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_PREV_ORDER);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_COLLAPSE);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_INCREASE_COLUMNS);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_DECREASE_COLUMNS);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_INTERPOLATE);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_FADE);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_INVERT_VALUES);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_FLIP_SELECTION);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_COLLAPSE_ROWS);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_EXPAND_ROWS);
          UI_KEYBIND_CONFIG(GUI_ACTION_PAT_LATCH);
          
          // TODO: collapse/expand pattern and song

          KEYBIND_CONFIG_END;
          ImGui::TreePop();
        }
        if (ImGui::TreeNode("Instrument list")) {
          KEYBIND_CONFIG_BEGIN("keysInsList");

          UI_KEYBIND_CONFIG(GUI_ACTION_INS_LIST_ADD);
          UI_KEYBIND_CONFIG(GUI_ACTION_INS_LIST_DUPLICATE);
          UI_KEYBIND_CONFIG(GUI_ACTION_INS_LIST_OPEN);
          UI_KEYBIND_CONFIG(GUI_ACTION_INS_LIST_SAVE);
          UI_KEYBIND_CONFIG(GUI_ACTION_INS_LIST_MOVE_UP);
          UI_KEYBIND_CONFIG(GUI_ACTION_INS_LIST_MOVE_DOWN);
          UI_KEYBIND_CONFIG(GUI_ACTION_INS_LIST_DELETE);
          UI_KEYBIND_CONFIG(GUI_ACTION_INS_LIST_EDIT);
          UI_KEYBIND_CONFIG(GUI_ACTION_INS_LIST_UP);
          UI_KEYBIND_CONFIG(GUI_ACTION_INS_LIST_DOWN);

          KEYBIND_CONFIG_END;
          ImGui::TreePop();
        }
        if (ImGui::TreeNode("Wavetable list")) {
          KEYBIND_CONFIG_BEGIN("keysWaveList");

          UI_KEYBIND_CONFIG(GUI_ACTION_WAVE_LIST_ADD);
          UI_KEYBIND_CONFIG(GUI_ACTION_WAVE_LIST_DUPLICATE);
          UI_KEYBIND_CONFIG(GUI_ACTION_WAVE_LIST_OPEN);
          UI_KEYBIND_CONFIG(GUI_ACTION_WAVE_LIST_SAVE);
          UI_KEYBIND_CONFIG(GUI_ACTION_WAVE_LIST_MOVE_UP);
          UI_KEYBIND_CONFIG(GUI_ACTION_WAVE_LIST_MOVE_DOWN);
          UI_KEYBIND_CONFIG(GUI_ACTION_WAVE_LIST_DELETE);
          UI_KEYBIND_CONFIG(GUI_ACTION_WAVE_LIST_EDIT);
          UI_KEYBIND_CONFIG(GUI_ACTION_WAVE_LIST_UP);
          UI_KEYBIND_CONFIG(GUI_ACTION_WAVE_LIST_DOWN);

          KEYBIND_CONFIG_END;
          ImGui::TreePop();
        }
        if (ImGui::TreeNode("Sample list")) {
          KEYBIND_CONFIG_BEGIN("keysSampleList");

          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_LIST_ADD);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_LIST_DUPLICATE);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_LIST_OPEN);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_LIST_SAVE);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_LIST_MOVE_UP);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_LIST_MOVE_DOWN);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_LIST_DELETE);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_LIST_EDIT);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_LIST_UP);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_LIST_DOWN);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_LIST_PREVIEW);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_LIST_STOP_PREVIEW);

          KEYBIND_CONFIG_END;
          ImGui::TreePop();
        }
        if (ImGui::TreeNode("Orders")) {
          KEYBIND_CONFIG_BEGIN("keysOrders");

          UI_KEYBIND_CONFIG(GUI_ACTION_ORDERS_UP);
          UI_KEYBIND_CONFIG(GUI_ACTION_ORDERS_DOWN);
          UI_KEYBIND_CONFIG(GUI_ACTION_ORDERS_LEFT);
          UI_KEYBIND_CONFIG(GUI_ACTION_ORDERS_RIGHT);
          UI_KEYBIND_CONFIG(GUI_ACTION_ORDERS_INCREASE);
          UI_KEYBIND_CONFIG(GUI_ACTION_ORDERS_DECREASE);
          UI_KEYBIND_CONFIG(GUI_ACTION_ORDERS_EDIT_MODE);
          UI_KEYBIND_CONFIG(GUI_ACTION_ORDERS_LINK);
          UI_KEYBIND_CONFIG(GUI_ACTION_ORDERS_ADD);
          UI_KEYBIND_CONFIG(GUI_ACTION_ORDERS_DUPLICATE);
          UI_KEYBIND_CONFIG(GUI_ACTION_ORDERS_DEEP_CLONE);
          UI_KEYBIND_CONFIG(GUI_ACTION_ORDERS_DUPLICATE_END);
          UI_KEYBIND_CONFIG(GUI_ACTION_ORDERS_DEEP_CLONE_END);
          UI_KEYBIND_CONFIG(GUI_ACTION_ORDERS_REMOVE);
          UI_KEYBIND_CONFIG(GUI_ACTION_ORDERS_MOVE_UP);
          UI_KEYBIND_CONFIG(GUI_ACTION_ORDERS_MOVE_DOWN);
          UI_KEYBIND_CONFIG(GUI_ACTION_ORDERS_REPLAY);

          KEYBIND_CONFIG_END;
          ImGui::TreePop();
        }
        if (ImGui::TreeNode("Sample editor")) {
          KEYBIND_CONFIG_BEGIN("keysSampleEdit");

          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_SELECT);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_DRAW);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_CUT);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_COPY);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_PASTE);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_PASTE_REPLACE);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_PASTE_MIX);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_SELECT_ALL);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_RESIZE);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_RESAMPLE);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_AMPLIFY);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_NORMALIZE);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_FADE_IN);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_FADE_OUT);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_INSERT);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_SILENCE);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_DELETE);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_TRIM);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_REVERSE);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_INVERT);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_SIGN);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_FILTER);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_PREVIEW);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_STOP_PREVIEW);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_ZOOM_IN);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_ZOOM_OUT);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_ZOOM_AUTO);
          UI_KEYBIND_CONFIG(GUI_ACTION_SAMPLE_MAKE_INS);

          KEYBIND_CONFIG_END;
          ImGui::TreePop();
        }
        ImGui::EndTabItem();
      }
      ImGui::EndTabBar();
    }
    ImGui::Separator();
    if (ImGui::Button("OK##SettingsOK")) {
      settingsOpen=false;
      willCommit=true;
    }
    ImGui::SameLine();
    if (ImGui::Button("Cancel##SettingsCancel")) {
      settingsOpen=false;
      syncSettings();
    }
  }
  if (ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows)) curWindow=GUI_WINDOW_SETTINGS;
  ImGui::End();
}

#define clampSetting(x,minV,maxV) \
  if (x<minV) { \
    x=minV; \
  } \
  if (x>maxV) { \
    x=maxV; \
  }

void FurnaceGUI::syncSettings() {
  settings.mainFontSize=e->getConfInt("mainFontSize",18);
  settings.patFontSize=e->getConfInt("patFontSize",18);
  settings.iconSize=e->getConfInt("iconSize",16);
  settings.audioEngine=(e->getConfString("audioEngine","SDL")=="SDL")?1:0;
  settings.audioDevice=e->getConfString("audioDevice","");
  settings.midiInDevice=e->getConfString("midiInDevice","");
  settings.midiOutDevice=e->getConfString("midiOutDevice","");
  settings.audioQuality=e->getConfInt("audioQuality",0);
  settings.audioBufSize=e->getConfInt("audioBufSize",1024);
  settings.audioRate=e->getConfInt("audioRate",44100);
  settings.arcadeCore=e->getConfInt("arcadeCore",0);
  settings.ym2612Core=e->getConfInt("ym2612Core",0);
  settings.saaCore=e->getConfInt("saaCore",1);
  settings.mainFont=e->getConfInt("mainFont",0);
  settings.patFont=e->getConfInt("patFont",0);
  settings.mainFontPath=e->getConfString("mainFontPath","");
  settings.patFontPath=e->getConfString("patFontPath","");
  settings.patRowsBase=e->getConfInt("patRowsBase",0);
  settings.orderRowsBase=e->getConfInt("orderRowsBase",1);
  settings.soloAction=e->getConfInt("soloAction",0);
  settings.pullDeleteBehavior=e->getConfInt("pullDeleteBehavior",1);
  settings.wrapHorizontal=e->getConfInt("wrapHorizontal",0);
  settings.wrapVertical=e->getConfInt("wrapVertical",0);
  settings.macroView=e->getConfInt("macroView",0);
  settings.fmNames=e->getConfInt("fmNames",0);
  settings.allowEditDocking=e->getConfInt("allowEditDocking",0);
  settings.chipNames=e->getConfInt("chipNames",0);
  settings.overflowHighlight=e->getConfInt("overflowHighlight",0);
  settings.partyTime=e->getConfInt("partyTime",0);
  settings.germanNotation=e->getConfInt("germanNotation",0);
  settings.stepOnDelete=e->getConfInt("stepOnDelete",0);
  settings.scrollStep=e->getConfInt("scrollStep",0);
  settings.sysSeparators=e->getConfInt("sysSeparators",1);
  settings.forceMono=e->getConfInt("forceMono",0);
  settings.controlLayout=e->getConfInt("controlLayout",3);
  settings.restartOnFlagChange=e->getConfInt("restartOnFlagChange",1);
  settings.statusDisplay=e->getConfInt("statusDisplay",0);
  settings.dpiScale=e->getConfFloat("dpiScale",0.0f);
  settings.viewPrevPattern=e->getConfInt("viewPrevPattern",1);
  settings.guiColorsBase=e->getConfInt("guiColorsBase",0);
  settings.avoidRaisingPattern=e->getConfInt("avoidRaisingPattern",0);
  settings.insFocusesPattern=e->getConfInt("insFocusesPattern",1);
  settings.stepOnInsert=e->getConfInt("stepOnInsert",0);
  settings.unifiedDataView=e->getConfInt("unifiedDataView",0);
  settings.sysFileDialog=e->getConfInt("sysFileDialog",1);
  settings.roundedWindows=e->getConfInt("roundedWindows",1);
  settings.roundedButtons=e->getConfInt("roundedButtons",1);
  settings.roundedMenus=e->getConfInt("roundedMenus",0);
  settings.loadJapanese=e->getConfInt("loadJapanese",0);
  settings.fmLayout=e->getConfInt("fmLayout",0);
  settings.sampleLayout=e->getConfInt("sampleLayout",0);
  settings.susPosition=e->getConfInt("susPosition",0);
  settings.effectCursorDir=e->getConfInt("effectCursorDir",1);
  settings.cursorPastePos=e->getConfInt("cursorPastePos",1);
  settings.titleBarInfo=e->getConfInt("titleBarInfo",1);
  settings.titleBarSys=e->getConfInt("titleBarSys",1);
  settings.frameBorders=e->getConfInt("frameBorders",0);
  settings.effectDeletionAltersValue=e->getConfInt("effectDeletionAltersValue",1);
  settings.oscRoundedCorners=e->getConfInt("oscRoundedCorners",1);
  settings.oscTakesEntireWindow=e->getConfInt("oscTakesEntireWindow",0);
  settings.oscBorder=e->getConfInt("oscBorder",1);
  settings.separateFMColors=e->getConfInt("separateFMColors",0);
  settings.insEditColorize=e->getConfInt("insEditColorize",0);
  settings.metroVol=e->getConfInt("metroVol",100);
  settings.pushNibble=e->getConfInt("pushNibble",0);
  settings.scrollChangesOrder=e->getConfInt("scrollChangesOrder",0);
  settings.oplStandardWaveNames=e->getConfInt("oplStandardWaveNames",0);
  settings.cursorMoveNoScroll=e->getConfInt("cursorMoveNoScroll",0);
  settings.lowLatency=e->getConfInt("lowLatency",0);
  settings.notePreviewBehavior=e->getConfInt("notePreviewBehavior",1);
  settings.powerSave=e->getConfInt("powerSave",POWER_SAVE_DEFAULT);
  settings.absorbInsInput=e->getConfInt("absorbInsInput",0);

  clampSetting(settings.mainFontSize,2,96);
  clampSetting(settings.patFontSize,2,96);
  clampSetting(settings.iconSize,2,48);
  clampSetting(settings.audioEngine,0,1);
  clampSetting(settings.audioQuality,0,1);
  clampSetting(settings.audioBufSize,32,4096);
  clampSetting(settings.audioRate,8000,384000);
  clampSetting(settings.arcadeCore,0,1);
  clampSetting(settings.ym2612Core,0,1);
  clampSetting(settings.saaCore,0,1);
  clampSetting(settings.mainFont,0,6);
  clampSetting(settings.patFont,0,6);
  clampSetting(settings.patRowsBase,0,1);
  clampSetting(settings.orderRowsBase,0,1);
  clampSetting(settings.soloAction,0,2);
  clampSetting(settings.pullDeleteBehavior,0,1);
  clampSetting(settings.wrapHorizontal,0,2);
  clampSetting(settings.wrapVertical,0,2);
  clampSetting(settings.macroView,0,1);
  clampSetting(settings.fmNames,0,2);
  clampSetting(settings.allowEditDocking,0,1);
  clampSetting(settings.chipNames,0,1);
  clampSetting(settings.overflowHighlight,0,1);
  clampSetting(settings.partyTime,0,1);
  clampSetting(settings.germanNotation,0,1);
  clampSetting(settings.stepOnDelete,0,1);
  clampSetting(settings.scrollStep,0,1);
  clampSetting(settings.sysSeparators,0,1);
  clampSetting(settings.forceMono,0,1);
  clampSetting(settings.controlLayout,0,3);
  clampSetting(settings.statusDisplay,0,3);
  clampSetting(settings.dpiScale,0.0f,4.0f);
  clampSetting(settings.viewPrevPattern,0,1);
  clampSetting(settings.guiColorsBase,0,1);
  clampSetting(settings.avoidRaisingPattern,0,1);
  clampSetting(settings.insFocusesPattern,0,1);
  clampSetting(settings.stepOnInsert,0,1);
  clampSetting(settings.unifiedDataView,0,1);
  clampSetting(settings.sysFileDialog,0,1);
  clampSetting(settings.roundedWindows,0,1);
  clampSetting(settings.roundedButtons,0,1);
  clampSetting(settings.roundedMenus,0,1);
  clampSetting(settings.loadJapanese,0,1);
  clampSetting(settings.fmLayout,0,3);
  clampSetting(settings.susPosition,0,1);
  clampSetting(settings.effectCursorDir,0,2);
  clampSetting(settings.cursorPastePos,0,1);
  clampSetting(settings.titleBarInfo,0,3);
  clampSetting(settings.titleBarSys,0,1);
  clampSetting(settings.frameBorders,0,1);
  clampSetting(settings.effectDeletionAltersValue,0,1);
  clampSetting(settings.sampleLayout,0,1);
  clampSetting(settings.separateFMColors,0,1);
  clampSetting(settings.insEditColorize,0,1);
  clampSetting(settings.metroVol,0,200);
  clampSetting(settings.pushNibble,0,1);
  clampSetting(settings.scrollChangesOrder,0,1);
  clampSetting(settings.oplStandardWaveNames,0,1);
  clampSetting(settings.cursorMoveNoScroll,0,1);
  clampSetting(settings.lowLatency,0,1);
  clampSetting(settings.notePreviewBehavior,0,3);
  clampSetting(settings.powerSave,0,1);
  clampSetting(settings.absorbInsInput,0,1);

  // keybinds
  for (int i=0; i<GUI_ACTION_MAX; i++) {
    if (guiActions[i].defaultBind==-1) continue; // not a bind
    actionKeys[i]=e->getConfInt(String("keybind_GUI_ACTION_")+String(guiActions[i].name),guiActions[i].defaultBind);
  }

  decodeKeyMap(noteKeys,e->getConfString("noteKeys",DEFAULT_NOTE_KEYS));

  parseKeybinds();

  midiMap.read(e->getConfigPath()+DIR_SEPARATOR_STR+"midiIn_"+stripName(settings.midiInDevice)+".cfg"); 
  midiMap.compile();

  e->setMidiDirect(midiMap.directChannel);
  e->setMetronomeVol(((float)settings.metroVol)/100.0f);
}

void FurnaceGUI::commitSettings() {
  e->setConf("mainFontSize",settings.mainFontSize);
  e->setConf("patFontSize",settings.patFontSize);
  e->setConf("iconSize",settings.iconSize);
  e->setConf("audioEngine",String(audioBackends[settings.audioEngine]));
  e->setConf("audioDevice",settings.audioDevice);
  e->setConf("midiInDevice",settings.midiInDevice);
  e->setConf("midiOutDevice",settings.midiOutDevice);
  e->setConf("audioQuality",settings.audioQuality);
  e->setConf("audioBufSize",settings.audioBufSize);
  e->setConf("audioRate",settings.audioRate);
  e->setConf("arcadeCore",settings.arcadeCore);
  e->setConf("ym2612Core",settings.ym2612Core);
  e->setConf("saaCore",settings.saaCore);
  e->setConf("mainFont",settings.mainFont);
  e->setConf("patFont",settings.patFont);
  e->setConf("mainFontPath",settings.mainFontPath);
  e->setConf("patFontPath",settings.patFontPath);
  e->setConf("patRowsBase",settings.patRowsBase);
  e->setConf("orderRowsBase",settings.orderRowsBase);
  e->setConf("soloAction",settings.soloAction);
  e->setConf("pullDeleteBehavior",settings.pullDeleteBehavior);
  e->setConf("wrapHorizontal",settings.wrapHorizontal);
  e->setConf("wrapVertical",settings.wrapVertical);
  e->setConf("macroView",settings.macroView);
  e->setConf("fmNames",settings.fmNames);
  e->setConf("allowEditDocking",settings.allowEditDocking);
  e->setConf("chipNames",settings.chipNames);
  e->setConf("overflowHighlight",settings.overflowHighlight);
  e->setConf("partyTime",settings.partyTime);
  e->setConf("germanNotation",settings.germanNotation);
  e->setConf("stepOnDelete",settings.stepOnDelete);
  e->setConf("scrollStep",settings.scrollStep);
  e->setConf("sysSeparators",settings.sysSeparators);
  e->setConf("forceMono",settings.forceMono);
  e->setConf("controlLayout",settings.controlLayout);
  e->setConf("restartOnFlagChange",settings.restartOnFlagChange);
  e->setConf("statusDisplay",settings.statusDisplay);
  e->setConf("dpiScale",settings.dpiScale);
  e->setConf("viewPrevPattern",settings.viewPrevPattern);
  e->setConf("guiColorsBase",settings.guiColorsBase);
  e->setConf("avoidRaisingPattern",settings.avoidRaisingPattern);
  e->setConf("insFocusesPattern",settings.insFocusesPattern);
  e->setConf("stepOnInsert",settings.stepOnInsert);
  e->setConf("unifiedDataView",settings.unifiedDataView);
  e->setConf("sysFileDialog",settings.sysFileDialog);
  e->setConf("roundedWindows",settings.roundedWindows);
  e->setConf("roundedButtons",settings.roundedButtons);
  e->setConf("roundedMenus",settings.roundedMenus);
  e->setConf("loadJapanese",settings.loadJapanese);
  e->setConf("fmLayout",settings.fmLayout);
  e->setConf("sampleLayout",settings.sampleLayout);
  e->setConf("susPosition",settings.susPosition);
  e->setConf("effectCursorDir",settings.effectCursorDir);
  e->setConf("cursorPastePos",settings.cursorPastePos);
  e->setConf("titleBarInfo",settings.titleBarInfo);
  e->setConf("titleBarSys",settings.titleBarSys);
  e->setConf("frameBorders",settings.frameBorders);
  e->setConf("effectDeletionAltersValue",settings.effectDeletionAltersValue);
  e->setConf("oscRoundedCorners",settings.oscRoundedCorners);
  e->setConf("oscTakesEntireWindow",settings.oscTakesEntireWindow);
  e->setConf("oscBorder",settings.oscBorder);
  e->setConf("separateFMColors",settings.separateFMColors);
  e->setConf("insEditColorize",settings.insEditColorize);
  e->setConf("metroVol",settings.metroVol);
  e->setConf("pushNibble",settings.pushNibble);
  e->setConf("scrollChangesOrder",settings.scrollChangesOrder);
  e->setConf("oplStandardWaveNames",settings.oplStandardWaveNames);
  e->setConf("cursorMoveNoScroll",settings.cursorMoveNoScroll);
  e->setConf("lowLatency",settings.lowLatency);
  e->setConf("notePreviewBehavior",settings.notePreviewBehavior);
  e->setConf("powerSave",settings.powerSave);
  e->setConf("absorbInsInput",settings.absorbInsInput);

  // colors
  for (int i=0; i<GUI_COLOR_MAX; i++) {
    e->setConf(guiColors[i].name,(int)ImGui::ColorConvertFloat4ToU32(uiColors[i]));
  }

  // keybinds
  for (int i=0; i<GUI_ACTION_MAX; i++) {
    if (guiActions[i].defaultBind==-1) continue; // not a bind
    e->setConf(String("keybind_GUI_ACTION_")+String(guiActions[i].name),actionKeys[i]);
  }

  parseKeybinds();

  e->setConf("noteKeys",encodeKeyMap(noteKeys));

  midiMap.compile();
  midiMap.write(e->getConfigPath()+DIR_SEPARATOR_STR+"midiIn_"+stripName(settings.midiInDevice)+".cfg");

  e->saveConf();

  if (!e->switchMaster()) {
    showError("could not initialize audio!");
  }

  ImGui::GetIO().Fonts->Clear();

  applyUISettings();

  ImGui_ImplSDLRenderer_DestroyFontsTexture();
  if (!ImGui::GetIO().Fonts->Build()) {
    logE("error while building font atlas!");
    showError("error while loading fonts! please check your settings.");
    ImGui::GetIO().Fonts->Clear();
    mainFont=ImGui::GetIO().Fonts->AddFontDefault();
    patFont=mainFont;
    ImGui_ImplSDLRenderer_DestroyFontsTexture();
    if (!ImGui::GetIO().Fonts->Build()) {
      logE("error again while building font atlas!");
    }
  }
}

bool FurnaceGUI::importColors(String path) {
  FILE* f=ps_fopen(path.c_str(),"rb");
  if (f==NULL) {
    logW("error while opening color file for import: %s",strerror(errno));
    return false;
  }
  resetColors();
  char line[4096];
  while (!feof(f)) {
    String key="";
    String value="";
    bool keyOrValue=false;
    if (fgets(line,4095,f)==NULL) {
      break;
    }
    for (char* i=line; *i; i++) {
      if (*i=='\n') continue;
      if (keyOrValue) {
        value+=*i;
      } else {
        if (*i=='=') {
          keyOrValue=true;
        } else {
          key+=*i;
        }
      }
    }
    if (keyOrValue) {
      // unoptimal
      const char* cs=key.c_str();
      bool found=false;
      for (int i=0; i<GUI_COLOR_MAX; i++) {
        try {
          if (strcmp(cs,guiColors[i].name)==0) {
            uiColors[i]=ImGui::ColorConvertU32ToFloat4(std::stoi(value));
            found=true;
            break;
          }
        } catch (std::out_of_range& e) {
          break;
        } catch (std::invalid_argument& e) {
          break;
        }
      }
      if (!found) logW("line invalid: %s",line);
    }
  }
  fclose(f);
  applyUISettings(false);
  return true;
}

bool FurnaceGUI::exportColors(String path) {
  FILE* f=ps_fopen(path.c_str(),"wb");
  if (f==NULL) {
    logW("error while opening color file for export: %s",strerror(errno));
    return false;
  }
  for (int i=0; i<GUI_COLOR_MAX; i++) {
    if (fprintf(f,"%s=%d\n",guiColors[i].name,ImGui::ColorConvertFloat4ToU32(uiColors[i]))<0) {
      logW("error while exporting colors: %s",strerror(errno));
      break;
    }
  }
  fclose(f);
  return true;
}

bool FurnaceGUI::importKeybinds(String path) {
  FILE* f=ps_fopen(path.c_str(),"rb");
  if (f==NULL) {
    logW("error while opening keybind file for import: %s",strerror(errno));
    return false;
  }
  resetKeybinds();
  char line[4096];
  while (!feof(f)) {
    String key="";
    String value="";
    bool keyOrValue=false;
    if (fgets(line,4095,f)==NULL) {
      break;
    }
    for (char* i=line; *i; i++) {
      if (*i=='\n') continue;
      if (keyOrValue) {
        value+=*i;
      } else {
        if (*i=='=') {
          keyOrValue=true;
        } else {
          key+=*i;
        }
      }
    }
    if (keyOrValue) {
      // unoptimal
      const char* cs=key.c_str();
      bool found=false;
      for (int i=0; i<GUI_ACTION_MAX; i++) {
        try {
          if (strcmp(cs,guiActions[i].name)==0) {
            actionKeys[i]=std::stoi(value);
            found=true;
            break;
          }
        } catch (std::out_of_range& e) {
          break;
        } catch (std::invalid_argument& e) {
          break;
        }
      }
      if (!found) logW("line invalid: %s",line);
    }
  }
  fclose(f);
  return true;
}

bool FurnaceGUI::exportKeybinds(String path) {
  FILE* f=ps_fopen(path.c_str(),"wb");
  if (f==NULL) {
    logW("error while opening keybind file for export: %s",strerror(errno));
    return false;
  }
  for (int i=0; i<GUI_ACTION_MAX; i++) {
    if (guiActions[i].defaultBind==-1) continue;
    if (fprintf(f,"%s=%d\n",guiActions[i].name,actionKeys[i])<0) {
      logW("error while exporting keybinds: %s",strerror(errno));
      break;
    }
  }
  fclose(f);
  return true;
}

bool FurnaceGUI::importLayout(String path) {
  FILE* f=ps_fopen(path.c_str(),"rb");
  if (f==NULL) {
    logW("error while opening keybind file for import: %s",strerror(errno));
    return false;
  }
  if (fseek(f,0,SEEK_END)<0) {
    fclose(f);
    return false;
  }
  ssize_t len=ftell(f);
  if (len==(SIZE_MAX>>1)) {
    fclose(f);
    return false;
  }
  if (len<1) {
    if (len==0) {
      logE("that file is empty!");
      lastError="file is empty";
    } else {
      perror("tell error");
    }
    fclose(f);
    return false;
  }
  if (fseek(f,0,SEEK_SET)<0) {
    perror("size error");
    lastError=fmt::sprintf("on get size: %s",strerror(errno));
    fclose(f);
    return false;
  }
  unsigned char* file=new unsigned char[len];
  if (fread(file,1,(size_t)len,f)!=(size_t)len) {
    perror("read error");
    lastError=fmt::sprintf("on read: %s",strerror(errno));
    fclose(f);
    delete[] file;
    return false;
  }
  fclose(f);

  ImGui::LoadIniSettingsFromMemory((const char*)file,len);
  delete[] file;
  return true;
}

bool FurnaceGUI::exportLayout(String path) {
  FILE* f=ps_fopen(path.c_str(),"wb");
  if (f==NULL) {
    logW("error while opening layout file for export: %s",strerror(errno));
    return false;
  }
  size_t dataSize=0;
  const char* data=ImGui::SaveIniSettingsToMemory(&dataSize);
  if (fwrite(data,1,dataSize,f)!=dataSize) {
    logW("error while exporting layout: %s",strerror(errno));
  }
  fclose(f);
  return true;
}

void FurnaceGUI::resetColors() {
  for (int i=0; i<GUI_COLOR_MAX; i++) {
    uiColors[i]=ImGui::ColorConvertU32ToFloat4(guiColors[i].defaultColor);
  }
}

void FurnaceGUI::resetKeybinds() {
  for (int i=0; i<GUI_COLOR_MAX; i++) {
    if (guiActions[i].defaultBind==-1) continue;
    actionKeys[i]=guiActions[i].defaultBind;
  }
  parseKeybinds();
}

void FurnaceGUI::parseKeybinds() {
  actionMapGlobal.clear();
  actionMapPat.clear();
  actionMapInsList.clear();
  actionMapWaveList.clear();
  actionMapSampleList.clear();
  actionMapSample.clear();
  actionMapOrders.clear();

  for (int i=GUI_ACTION_GLOBAL_MIN+1; i<GUI_ACTION_GLOBAL_MAX; i++) {
    if (actionKeys[i]&FURK_MASK) {
      actionMapGlobal[actionKeys[i]]=i;
    }
  }

  for (int i=GUI_ACTION_PAT_MIN+1; i<GUI_ACTION_PAT_MAX; i++) {
    if (actionKeys[i]&FURK_MASK) {
      actionMapPat[actionKeys[i]]=i;
    }
  }

  for (int i=GUI_ACTION_INS_LIST_MIN+1; i<GUI_ACTION_INS_LIST_MAX; i++) {
    if (actionKeys[i]&FURK_MASK) {
      actionMapInsList[actionKeys[i]]=i;
    }
  }

  for (int i=GUI_ACTION_WAVE_LIST_MIN+1; i<GUI_ACTION_WAVE_LIST_MAX; i++) {
    if (actionKeys[i]&FURK_MASK) {
      actionMapWaveList[actionKeys[i]]=i;
    }
  }

  for (int i=GUI_ACTION_SAMPLE_LIST_MIN+1; i<GUI_ACTION_SAMPLE_LIST_MAX; i++) {
    if (actionKeys[i]&FURK_MASK) {
      actionMapSampleList[actionKeys[i]]=i;
    }
  }

  for (int i=GUI_ACTION_SAMPLE_MIN+1; i<GUI_ACTION_SAMPLE_MAX; i++) {
    if (actionKeys[i]&FURK_MASK) {
      actionMapSample[actionKeys[i]]=i;
    }
  }

  for (int i=GUI_ACTION_ORDERS_MIN+1; i<GUI_ACTION_ORDERS_MAX; i++) {
    if (actionKeys[i]&FURK_MASK) {
      actionMapOrders[actionKeys[i]]=i;
    }
  }
}

void FurnaceGUI::pushAccentColors(const ImVec4& one, const ImVec4& two, const ImVec4& border, const ImVec4& borderShadow) {
  float hue, sat, val;

  ImVec4 primaryActive=one;
  ImVec4 primaryHover, primary;
  primaryHover.w=primaryActive.w;
  primary.w=primaryActive.w;
  ImGui::ColorConvertRGBtoHSV(primaryActive.x,primaryActive.y,primaryActive.z,hue,sat,val);
  if (settings.guiColorsBase) {
    primary=primaryActive;
    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.9,primaryHover.x,primaryHover.y,primaryHover.z);
    ImGui::ColorConvertHSVtoRGB(hue,sat,val*0.5,primaryActive.x,primaryActive.y,primaryActive.z);
  } else {
    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.5,primaryHover.x,primaryHover.y,primaryHover.z);
    ImGui::ColorConvertHSVtoRGB(hue,sat*0.8,val*0.35,primary.x,primary.y,primary.z);
  }

  ImVec4 secondaryActive=two;
  ImVec4 secondaryHover, secondary, secondarySemiActive;
  secondarySemiActive.w=secondaryActive.w;
  secondaryHover.w=secondaryActive.w;
  secondary.w=secondaryActive.w;
  ImGui::ColorConvertRGBtoHSV(secondaryActive.x,secondaryActive.y,secondaryActive.z,hue,sat,val);
  if (settings.guiColorsBase) {
    secondary=secondaryActive;
    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.7,secondarySemiActive.x,secondarySemiActive.y,secondarySemiActive.z);
    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.9,secondaryHover.x,secondaryHover.y,secondaryHover.z);
    ImGui::ColorConvertHSVtoRGB(hue,sat,val*0.5,secondaryActive.x,secondaryActive.y,secondaryActive.z);
  } else {
    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.75,secondarySemiActive.x,secondarySemiActive.y,secondarySemiActive.z);
    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.5,secondaryHover.x,secondaryHover.y,secondaryHover.z);
    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.25,secondary.x,secondary.y,secondary.z);
  }

  ImGui::PushStyleColor(ImGuiCol_Button,primary);
  ImGui::PushStyleColor(ImGuiCol_ButtonHovered,primaryHover);
  ImGui::PushStyleColor(ImGuiCol_ButtonActive,primaryActive);
  ImGui::PushStyleColor(ImGuiCol_Tab,primary);
  ImGui::PushStyleColor(ImGuiCol_TabHovered,secondaryHover);
  ImGui::PushStyleColor(ImGuiCol_TabActive,secondarySemiActive);
  ImGui::PushStyleColor(ImGuiCol_TabUnfocused,primary);
  ImGui::PushStyleColor(ImGuiCol_TabUnfocusedActive,primaryHover);
  ImGui::PushStyleColor(ImGuiCol_Header,secondary);
  ImGui::PushStyleColor(ImGuiCol_HeaderHovered,secondaryHover);
  ImGui::PushStyleColor(ImGuiCol_HeaderActive,secondaryActive);
  ImGui::PushStyleColor(ImGuiCol_ResizeGrip,secondary);
  ImGui::PushStyleColor(ImGuiCol_ResizeGripHovered,secondaryHover);
  ImGui::PushStyleColor(ImGuiCol_ResizeGripActive,secondaryActive);
  ImGui::PushStyleColor(ImGuiCol_FrameBg,secondary);
  ImGui::PushStyleColor(ImGuiCol_FrameBgHovered,secondaryHover);
  ImGui::PushStyleColor(ImGuiCol_FrameBgActive,secondaryActive);
  ImGui::PushStyleColor(ImGuiCol_SliderGrab,primaryActive);
  ImGui::PushStyleColor(ImGuiCol_SliderGrabActive,primaryActive);
  ImGui::PushStyleColor(ImGuiCol_TitleBgActive,primary);
  ImGui::PushStyleColor(ImGuiCol_CheckMark,primaryActive);
  ImGui::PushStyleColor(ImGuiCol_TextSelectedBg,secondaryHover);
  ImGui::PushStyleColor(ImGuiCol_Border,border);
  ImGui::PushStyleColor(ImGuiCol_BorderShadow,borderShadow);
}

void FurnaceGUI::popAccentColors() {
  ImGui::PopStyleColor(24);
}

#define IGFD_FileStyleByExtension IGFD_FileStyleByExtention

#ifdef _WIN32
#define SYSTEM_FONT_PATH_1 "C:\\Windows\\Fonts\\segoeui.ttf"
#define SYSTEM_FONT_PATH_2 "C:\\Windows\\Fonts\\tahoma.ttf"
// TODO!
#define SYSTEM_FONT_PATH_3 "C:\\Windows\\Fonts\\tahoma.ttf"
// TODO!
#define SYSTEM_PAT_FONT_PATH_1 "C:\\Windows\\Fonts\\consola.ttf"
#define SYSTEM_PAT_FONT_PATH_2 "C:\\Windows\\Fonts\\cour.ttf"
// GOOD LUCK WITH THIS ONE - UNTESTED
#define SYSTEM_PAT_FONT_PATH_3 "C:\\Windows\\Fonts\\vgasys.fon"
#elif defined(__APPLE__)
#define SYSTEM_FONT_PATH_1 "/System/Library/Fonts/SFAANS.ttf"
#define SYSTEM_FONT_PATH_2 "/System/Library/Fonts/Helvetica.ttc"
#define SYSTEM_FONT_PATH_3 "/System/Library/Fonts/Helvetica.dfont"
#define SYSTEM_PAT_FONT_PATH_1 "/System/Library/Fonts/SFNSMono.ttf"
#define SYSTEM_PAT_FONT_PATH_2 "/System/Library/Fonts/Courier New.ttf"
#define SYSTEM_PAT_FONT_PATH_3 "/System/Library/Fonts/Courier New.ttf"
#else
#define SYSTEM_FONT_PATH_1 "/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf"
#define SYSTEM_FONT_PATH_2 "/usr/share/fonts/TTF/DejaVuSans.ttf"
#define SYSTEM_FONT_PATH_3 "/usr/share/fonts/ubuntu/Ubuntu-R.ttf"
#define SYSTEM_PAT_FONT_PATH_1 "/usr/share/fonts/truetype/dejavu/DejaVuSansMono.ttf"
#define SYSTEM_PAT_FONT_PATH_2 "/usr/share/fonts/TTF/DejaVuSansMono.ttf"
#define SYSTEM_PAT_FONT_PATH_3 "/usr/share/fonts/ubuntu/UbuntuMono-R.ttf"
#endif

void FurnaceGUI::applyUISettings(bool updateFonts) {
  ImGuiStyle sty;
  if (settings.guiColorsBase) {
    ImGui::StyleColorsLight(&sty);
  } else {
    ImGui::StyleColorsDark(&sty);
  }

  if (settings.dpiScale>=0.5f) dpiScale=settings.dpiScale;

  // colors
  if (updateFonts) {
    for (int i=0; i<GUI_COLOR_MAX; i++) {
      uiColors[i]=ImGui::ColorConvertU32ToFloat4(e->getConfInt(guiColors[i].name,guiColors[i].defaultColor));
    }
  }

  for (int i=0; i<64; i++) {
    ImVec4 col1=uiColors[GUI_COLOR_PATTERN_VOLUME_MIN];
    ImVec4 col2=uiColors[GUI_COLOR_PATTERN_VOLUME_HALF];
    ImVec4 col3=uiColors[GUI_COLOR_PATTERN_VOLUME_MAX];
    volColors[i]=ImVec4(col1.x+((col2.x-col1.x)*float(i)/64.0f),
                        col1.y+((col2.y-col1.y)*float(i)/64.0f),
                        col1.z+((col2.z-col1.z)*float(i)/64.0f),
                        1.0f);
    volColors[i+64]=ImVec4(col2.x+((col3.x-col2.x)*float(i)/64.0f),
                           col2.y+((col3.y-col2.y)*float(i)/64.0f),
                           col2.z+((col3.z-col2.z)*float(i)/64.0f),
                           1.0f);
  }

  float hue, sat, val;

  ImVec4 primaryActive=uiColors[GUI_COLOR_ACCENT_PRIMARY];
  ImVec4 primaryHover, primary;
  primaryHover.w=primaryActive.w;
  primary.w=primaryActive.w;
  ImGui::ColorConvertRGBtoHSV(primaryActive.x,primaryActive.y,primaryActive.z,hue,sat,val);
  if (settings.guiColorsBase) {
    primary=primaryActive;
    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.9,primaryHover.x,primaryHover.y,primaryHover.z);
    ImGui::ColorConvertHSVtoRGB(hue,sat,val*0.5,primaryActive.x,primaryActive.y,primaryActive.z);
  } else {
    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.5,primaryHover.x,primaryHover.y,primaryHover.z);
    ImGui::ColorConvertHSVtoRGB(hue,sat*0.8,val*0.35,primary.x,primary.y,primary.z);
  }

  ImVec4 secondaryActive=uiColors[GUI_COLOR_ACCENT_SECONDARY];
  ImVec4 secondaryHover, secondary, secondarySemiActive;
  secondarySemiActive.w=secondaryActive.w;
  secondaryHover.w=secondaryActive.w;
  secondary.w=secondaryActive.w;
  ImGui::ColorConvertRGBtoHSV(secondaryActive.x,secondaryActive.y,secondaryActive.z,hue,sat,val);
  if (settings.guiColorsBase) {
    secondary=secondaryActive;
    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.7,secondarySemiActive.x,secondarySemiActive.y,secondarySemiActive.z);
    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.9,secondaryHover.x,secondaryHover.y,secondaryHover.z);
    ImGui::ColorConvertHSVtoRGB(hue,sat,val*0.5,secondaryActive.x,secondaryActive.y,secondaryActive.z);
  } else {
    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.75,secondarySemiActive.x,secondarySemiActive.y,secondarySemiActive.z);
    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.5,secondaryHover.x,secondaryHover.y,secondaryHover.z);
    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.25,secondary.x,secondary.y,secondary.z);
  }


  sty.Colors[ImGuiCol_WindowBg]=uiColors[GUI_COLOR_FRAME_BACKGROUND];
  sty.Colors[ImGuiCol_ModalWindowDimBg]=uiColors[GUI_COLOR_MODAL_BACKDROP];
  sty.Colors[ImGuiCol_Text]=uiColors[GUI_COLOR_TEXT];

  sty.Colors[ImGuiCol_Button]=primary;
  sty.Colors[ImGuiCol_ButtonHovered]=primaryHover;
  sty.Colors[ImGuiCol_ButtonActive]=primaryActive;
  sty.Colors[ImGuiCol_Tab]=primary;
  sty.Colors[ImGuiCol_TabHovered]=secondaryHover;
  sty.Colors[ImGuiCol_TabActive]=secondarySemiActive;
  sty.Colors[ImGuiCol_TabUnfocused]=primary;
  sty.Colors[ImGuiCol_TabUnfocusedActive]=primaryHover;
  sty.Colors[ImGuiCol_Header]=secondary;
  sty.Colors[ImGuiCol_HeaderHovered]=secondaryHover;
  sty.Colors[ImGuiCol_HeaderActive]=secondaryActive;
  sty.Colors[ImGuiCol_ResizeGrip]=secondary;
  sty.Colors[ImGuiCol_ResizeGripHovered]=secondaryHover;
  sty.Colors[ImGuiCol_ResizeGripActive]=secondaryActive;
  sty.Colors[ImGuiCol_FrameBg]=secondary;
  sty.Colors[ImGuiCol_FrameBgHovered]=secondaryHover;
  sty.Colors[ImGuiCol_FrameBgActive]=secondaryActive;
  sty.Colors[ImGuiCol_SliderGrab]=primaryActive;
  sty.Colors[ImGuiCol_SliderGrabActive]=primaryActive;
  sty.Colors[ImGuiCol_TitleBgActive]=primary;
  sty.Colors[ImGuiCol_CheckMark]=primaryActive;
  sty.Colors[ImGuiCol_TextSelectedBg]=secondaryHover;
  sty.Colors[ImGuiCol_PlotHistogram]=uiColors[GUI_COLOR_MACRO_OTHER];
  sty.Colors[ImGuiCol_PlotHistogramHovered]=uiColors[GUI_COLOR_MACRO_OTHER];
  sty.Colors[ImGuiCol_Border]=uiColors[GUI_COLOR_BORDER];
  sty.Colors[ImGuiCol_BorderShadow]=uiColors[GUI_COLOR_BORDER_SHADOW];

  if (settings.roundedWindows) sty.WindowRounding=8.0f;
  if (settings.roundedButtons) {
    sty.FrameRounding=6.0f;
    sty.GrabRounding=6.0f;
  }
  if (settings.roundedMenus) sty.PopupRounding=8.0f;

  if (settings.frameBorders) {
    sty.FrameBorderSize=1.0f;
  } else {
    sty.FrameBorderSize=0.0f;
  }

  sty.ScaleAllSizes(dpiScale);

  ImGui::GetStyle()=sty;

  for (int i=0; i<256; i++) {
    ImVec4& base=uiColors[GUI_COLOR_PATTERN_EFFECT_PITCH];
    pitchGrad[i]=ImGui::GetColorU32(ImVec4(base.x,base.y,base.z,((float)i/255.0f)*base.w));
  }
  for (int i=0; i<256; i++) {
    ImVec4& base=uiColors[GUI_COLOR_PATTERN_ACTIVE];
    noteGrad[i]=ImGui::GetColorU32(ImVec4(base.x,base.y,base.z,((float)i/255.0f)*base.w));
  }
  for (int i=0; i<256; i++) {
    ImVec4& base=uiColors[GUI_COLOR_PATTERN_EFFECT_PANNING];
    panGrad[i]=ImGui::GetColorU32(ImVec4(base.x,base.y,base.z,((float)i/255.0f)*base.w));
  }
  for (int i=0; i<256; i++) {
    ImVec4& base=uiColors[GUI_COLOR_PATTERN_INS];
    insGrad[i]=ImGui::GetColorU32(ImVec4(base.x,base.y,base.z,((float)i/255.0f)*base.w));
  }
  for (int i=0; i<256; i++) {
    ImVec4& base=volColors[i/2];
    volGrad[i]=ImGui::GetColorU32(ImVec4(base.x,base.y,base.z,((float)i/255.0f)*base.w));
  }
  for (int i=0; i<256; i++) {
    ImVec4& base=uiColors[GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY];
    sysCmd1Grad[i]=ImGui::GetColorU32(ImVec4(base.x,base.y,base.z,((float)i/255.0f)*base.w));
  }
  for (int i=0; i<256; i++) {
    ImVec4& base=uiColors[GUI_COLOR_PATTERN_EFFECT_SYS_SECONDARY];
    sysCmd2Grad[i]=ImGui::GetColorU32(ImVec4(base.x,base.y,base.z,((float)i/255.0f)*base.w));
  }

  if (updateFonts) {
    // set to 800 for now due to problems with unifont
    static const ImWchar upTo800[]={0x20,0x7e,0xa0,0x800,0};
    ImFontGlyphRangesBuilder range;
    ImVector<ImWchar> outRange;

    range.AddRanges(upTo800);
    if (settings.loadJapanese) {
      range.AddRanges(ImGui::GetIO().Fonts->GetGlyphRangesJapanese());
    }
    // I'm terribly sorry
    range.UsedChars[0x80>>5]=0;

    range.BuildRanges(&outRange);
    if (fontRange!=NULL) delete[] fontRange;
    fontRange=new ImWchar[outRange.size()];
    int index=0;
    for (ImWchar& i: outRange) {
      fontRange[index++]=i;
    }

    if (settings.mainFont<0 || settings.mainFont>6) settings.mainFont=0;
    if (settings.patFont<0 || settings.patFont>6) settings.patFont=0;

    if (settings.mainFont==6 && settings.mainFontPath.empty()) {
      logW("UI font path is empty! reverting to default font");
      settings.mainFont=0;
    }
    if (settings.patFont==6 && settings.patFontPath.empty()) {
      logW("pattern font path is empty! reverting to default font");
      settings.patFont=0;
    }

    ImFontConfig fc1;
    fc1.MergeMode=true;

    if (settings.mainFont==6) { // custom font
      if ((mainFont=ImGui::GetIO().Fonts->AddFontFromFileTTF(settings.mainFontPath.c_str(),e->getConfInt("mainFontSize",18)*dpiScale,NULL,fontRange))==NULL) {
        logW("could not load UI font! reverting to default font");
        settings.mainFont=0;
        if ((mainFont=ImGui::GetIO().Fonts->AddFontFromMemoryCompressedTTF(builtinFont[settings.mainFont],builtinFontLen[settings.mainFont],e->getConfInt("mainFontSize",18)*dpiScale,NULL,fontRange))==NULL) {
          logE("could not load UI font! falling back to Proggy Clean.");
          mainFont=ImGui::GetIO().Fonts->AddFontDefault();
        }
      }
    } else if (settings.mainFont==5) { // system font
      if ((mainFont=ImGui::GetIO().Fonts->AddFontFromFileTTF(SYSTEM_FONT_PATH_1,e->getConfInt("mainFontSize",18)*dpiScale,NULL,fontRange))==NULL) {
        if ((mainFont=ImGui::GetIO().Fonts->AddFontFromFileTTF(SYSTEM_FONT_PATH_2,e->getConfInt("mainFontSize",18)*dpiScale,NULL,fontRange))==NULL) {
          if ((mainFont=ImGui::GetIO().Fonts->AddFontFromFileTTF(SYSTEM_FONT_PATH_3,e->getConfInt("mainFontSize",18)*dpiScale,NULL,fontRange))==NULL) {
            logW("could not load UI font! reverting to default font");
            settings.mainFont=0;
            if ((mainFont=ImGui::GetIO().Fonts->AddFontFromMemoryCompressedTTF(builtinFont[settings.mainFont],builtinFontLen[settings.mainFont],e->getConfInt("mainFontSize",18)*dpiScale,NULL,fontRange))==NULL) {
              logE("could not load UI font! falling back to Proggy Clean.");
              mainFont=ImGui::GetIO().Fonts->AddFontDefault();
            }
          }
        }
      }
    } else {
      if ((mainFont=ImGui::GetIO().Fonts->AddFontFromMemoryCompressedTTF(builtinFont[settings.mainFont],builtinFontLen[settings.mainFont],e->getConfInt("mainFontSize",18)*dpiScale,NULL,fontRange))==NULL) {
        logE("could not load UI font! falling back to Proggy Clean.");
        mainFont=ImGui::GetIO().Fonts->AddFontDefault();
      }
    }

    // two fallback fonts
    mainFont=ImGui::GetIO().Fonts->AddFontFromMemoryCompressedTTF(font_liberationSans_compressed_data,font_liberationSans_compressed_size,e->getConfInt("mainFontSize",18)*dpiScale,&fc1,fontRange);
    mainFont=ImGui::GetIO().Fonts->AddFontFromMemoryCompressedTTF(font_unifont_compressed_data,font_unifont_compressed_size,e->getConfInt("mainFontSize",18)*dpiScale,&fc1,fontRange);

    ImFontConfig fc;
    fc.MergeMode=true;
    fc.GlyphMinAdvanceX=e->getConfInt("iconSize",16)*dpiScale;
    static const ImWchar fontRangeIcon[]={ICON_MIN_FA,ICON_MAX_FA,0};
    if ((iconFont=ImGui::GetIO().Fonts->AddFontFromMemoryCompressedTTF(iconFont_compressed_data,iconFont_compressed_size,e->getConfInt("iconSize",16)*dpiScale,&fc,fontRangeIcon))==NULL) {
      logE("could not load icon font!");
    }
    if (settings.mainFontSize==settings.patFontSize && settings.patFont<5 && builtinFontM[settings.patFont]==builtinFont[settings.mainFont]) {
      logD("using main font for pat font.");
      patFont=mainFont;
    } else {
      if (settings.patFont==6) { // custom font
        if ((patFont=ImGui::GetIO().Fonts->AddFontFromFileTTF(settings.patFontPath.c_str(),e->getConfInt("patFontSize",18)*dpiScale,NULL,upTo800))==NULL) {
          logW("could not load pattern font! reverting to default font");
          settings.patFont=0;
          if ((patFont=ImGui::GetIO().Fonts->AddFontFromMemoryCompressedTTF(builtinFontM[settings.patFont],builtinFontMLen[settings.patFont],e->getConfInt("patFontSize",18)*dpiScale,NULL,upTo800))==NULL) {
            logE("could not load pattern font! falling back to Proggy Clean.");
            patFont=ImGui::GetIO().Fonts->AddFontDefault();
          }
        }
      } else if (settings.patFont==5) { // system font
        if ((patFont=ImGui::GetIO().Fonts->AddFontFromFileTTF(SYSTEM_PAT_FONT_PATH_1,e->getConfInt("patFontSize",18)*dpiScale,NULL,upTo800))==NULL) {
          if ((patFont=ImGui::GetIO().Fonts->AddFontFromFileTTF(SYSTEM_PAT_FONT_PATH_2,e->getConfInt("patFontSize",18)*dpiScale,NULL,upTo800))==NULL) {
            if ((patFont=ImGui::GetIO().Fonts->AddFontFromFileTTF(SYSTEM_PAT_FONT_PATH_3,e->getConfInt("patFontSize",18)*dpiScale,NULL,upTo800))==NULL) {
              logW("could not load pattern font! reverting to default font");
              settings.patFont=0;
              if ((patFont=ImGui::GetIO().Fonts->AddFontFromMemoryCompressedTTF(builtinFontM[settings.patFont],builtinFontMLen[settings.patFont],e->getConfInt("patFontSize",18)*dpiScale,NULL,upTo800))==NULL) {
                logE("could not load pattern font! falling back to Proggy Clean.");
                patFont=ImGui::GetIO().Fonts->AddFontDefault();
              }
            }
          }
        }
      } else {
        if ((patFont=ImGui::GetIO().Fonts->AddFontFromMemoryCompressedTTF(builtinFontM[settings.patFont],builtinFontMLen[settings.patFont],e->getConfInt("patFontSize",18)*dpiScale,NULL,upTo800))==NULL) {
          logE("could not load pattern font!");
          patFont=ImGui::GetIO().Fonts->AddFontDefault();
        }
    }
    }
    if ((bigFont=ImGui::GetIO().Fonts->AddFontFromMemoryCompressedTTF(font_plexSans_compressed_data,font_plexSans_compressed_size,40*dpiScale))==NULL) {
      logE("could not load big UI font!");
    }

    mainFont->FallbackChar='?';
    mainFont->DotChar='.';
  }

  // TODO: allow changing these colors.
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByTypeDir,"",uiColors[GUI_COLOR_FILE_DIR],ICON_FA_FOLDER_O);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByTypeFile,"",uiColors[GUI_COLOR_FILE_OTHER],ICON_FA_FILE_O);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".fur",uiColors[GUI_COLOR_FILE_SONG_NATIVE],ICON_FA_FILE);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".fui",uiColors[GUI_COLOR_FILE_INSTR],ICON_FA_FILE);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".fuw",uiColors[GUI_COLOR_FILE_WAVE],ICON_FA_FILE);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".dmf",uiColors[GUI_COLOR_FILE_SONG_NATIVE],ICON_FA_FILE);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".dmp",uiColors[GUI_COLOR_FILE_INSTR],ICON_FA_FILE);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".dmw",uiColors[GUI_COLOR_FILE_WAVE],ICON_FA_FILE);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".wav",uiColors[GUI_COLOR_FILE_AUDIO],ICON_FA_FILE_AUDIO_O);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".dmc",uiColors[GUI_COLOR_FILE_AUDIO],ICON_FA_FILE_AUDIO_O);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".vgm",uiColors[GUI_COLOR_FILE_VGM],ICON_FA_FILE_AUDIO_O);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".ttf",uiColors[GUI_COLOR_FILE_FONT],ICON_FA_FONT);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".otf",uiColors[GUI_COLOR_FILE_FONT],ICON_FA_FONT);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".ttc",uiColors[GUI_COLOR_FILE_FONT],ICON_FA_FONT);

  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".mod",uiColors[GUI_COLOR_FILE_SONG_IMPORT],ICON_FA_FILE);

  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".tfi",uiColors[GUI_COLOR_FILE_INSTR],ICON_FA_FILE);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".vgi",uiColors[GUI_COLOR_FILE_INSTR],ICON_FA_FILE);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".s3i",uiColors[GUI_COLOR_FILE_INSTR],ICON_FA_FILE);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".sbi",uiColors[GUI_COLOR_FILE_INSTR],ICON_FA_FILE);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".bnk",uiColors[GUI_COLOR_FILE_INSTR],ICON_FA_FILE);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".fti",uiColors[GUI_COLOR_FILE_INSTR],ICON_FA_FILE);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".bti",uiColors[GUI_COLOR_FILE_INSTR],ICON_FA_FILE);
  ImGuiFileDialog::Instance()->SetFileStyle(IGFD_FileStyleByExtension,".ff",uiColors[GUI_COLOR_FILE_INSTR],ICON_FA_FILE);

  if (updateFonts) {
    if (fileDialog!=NULL) delete fileDialog;
    fileDialog=new FurnaceGUIFileDialog(settings.sysFileDialog);
  }
}