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furnace/src/gui/piano.cpp

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/**
* Furnace Tracker - multi-system chiptune tracker
* Copyright (C) 2021-2023 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 "guiConst.h"
#include "imgui.h"
#include "imgui_internal.h"
#include <fmt/printf.h>
#include "IconsFontAwesome4.h"
const float topKeyStarts[5]={
0.9f/7.0f, 2.1f/7.0f, 3.9f/7.0f, 5.0f/7.0f, 6.1f/7.0f
};
const int topKeyNotes[5]={
1, 3, 6, 8, 10
};
const int bottomKeyNotes[7]={
0, 2, 4, 5, 7, 9, 11
};
const bool isTopKey[12]={
false, true, false, true, false, false, true, false, true, false, true, false
};
#define VALUE_DIGIT(x,label) \
if (ImGui::Button(label,buttonSize)) { \
valueInput(x,false); \
}
void FurnaceGUI::drawPiano() {
if (nextWindow==GUI_WINDOW_PIANO) {
pianoOpen=true;
ImGui::SetNextWindowFocus();
nextWindow=GUI_WINDOW_NOTHING;
}
if (!pianoOpen) return;
if (mobileUI) {
ImGui::SetNextWindowPos(ImVec2(patWindowPos.x,patWindowPos.y+patWindowSize.y));
ImGui::SetNextWindowSize(portrait?ImVec2(canvasW,0.4*canvasW):ImVec2(canvasW-(0.16*canvasH),0.3*canvasH));
}
if (ImGui::Begin("Piano",&pianoOpen,((pianoOptions)?0:ImGuiWindowFlags_NoTitleBar)|ImGuiWindowFlags_NoScrollbar|ImGuiWindowFlags_NoScrollWithMouse|globalWinFlags)) {
bool oldPianoKeyPressed[180];
memcpy(oldPianoKeyPressed,pianoKeyPressed,180*sizeof(bool));
memset(pianoKeyPressed,0,180*sizeof(bool));
if (ImGui::BeginTable("PianoLayout",((pianoOptions && (!mobileUI || !portrait))?2:1),ImGuiTableFlags_BordersInnerV)) {
int& off=(e->isPlaying() || pianoSharePosition)?pianoOffset:pianoOffsetEdit;
int& oct=(e->isPlaying() || pianoSharePosition)?pianoOctaves:pianoOctavesEdit;
bool view=(pianoView==PIANO_LAYOUT_AUTOMATIC)?(!e->isPlaying()):pianoView;
if (pianoOptions && (!mobileUI || !portrait)) {
ImGui::TableSetupColumn("c0",ImGuiTableColumnFlags_WidthFixed);
}
ImGui::TableSetupColumn("c1",ImGuiTableColumnFlags_WidthStretch,1.0f);
ImGui::TableNextRow();
if (pianoOptions) {
ImGui::TableNextColumn();
float optionSizeY=ImGui::GetContentRegionAvail().y*((mobileUI && portrait)?0.3:0.5)-ImGui::GetStyle().ItemSpacing.y;
ImVec2 optionSize=ImVec2((mobileUI && portrait)?((ImGui::GetContentRegionAvail().x-ImGui::GetStyle().ItemSpacing.x*5.0f)/6.0f):(1.2f*optionSizeY),optionSizeY);
if (pianoOptionsSet) {
if (ImGui::Button("OFF##PianoNOff",optionSize)) {
if (edit) noteInput(0,GUI_NOTE_OFF);
}
ImGui::SameLine();
if (ImGui::Button("===##PianoNRel",optionSize)) {
if (edit) noteInput(0,GUI_NOTE_OFF_RELEASE);
}
} else {
if (ImGui::Button(ICON_FA_ARROW_LEFT "##PianoLeft",optionSize)) {
off--;
if (off<0) off=0;
}
ImGui::SameLine();
if (ImGui::Button(ICON_FA_ARROW_RIGHT "##PianoRight",optionSize)) {
off++;
if ((off+oct)>14) off=15-oct;
}
}
ImGui::SameLine();
ImGui::Button(ICON_FA_ELLIPSIS_V "##PianoOptions",optionSize);
if (ImGui::IsItemHovered()) {
ImGui::SetTooltip("Options");
}
if (ImGui::BeginPopupContextItem("PianoOptions",ImGuiPopupFlags_MouseButtonLeft)) {
ImGui::Text("Key layout:");
ImGui::Indent();
if (ImGui::RadioButton("Automatic",pianoView==PIANO_LAYOUT_AUTOMATIC)) {
pianoView=PIANO_LAYOUT_AUTOMATIC;
}
if (ImGui::RadioButton("Standard",pianoView==PIANO_LAYOUT_STANDARD)) {
pianoView=PIANO_LAYOUT_STANDARD;
}
if (ImGui::RadioButton("Continuous",pianoView==PIANO_LAYOUT_CONTINUOUS)) {
pianoView=PIANO_LAYOUT_CONTINUOUS;
}
ImGui::Unindent();
ImGui::Text("Value input pad:");
ImGui::Indent();
if (ImGui::RadioButton("Disabled",pianoInputPadMode==PIANO_INPUT_PAD_DISABLE)) {
pianoInputPadMode=PIANO_INPUT_PAD_DISABLE;
}
if (ImGui::RadioButton("Replace piano",pianoInputPadMode==PIANO_INPUT_PAD_REPLACE)) {
pianoInputPadMode=PIANO_INPUT_PAD_REPLACE;
}
if (ImGui::RadioButton("Split (automatic)",pianoInputPadMode==PIANO_INPUT_PAD_SPLIT_AUTO)) {
pianoInputPadMode=PIANO_INPUT_PAD_SPLIT_AUTO;
}
if (ImGui::RadioButton("Split (always visible)",pianoInputPadMode==PIANO_INPUT_PAD_SPLIT_VISIBLE)) {
pianoInputPadMode=PIANO_INPUT_PAD_SPLIT_VISIBLE;
}
ImGui::Unindent();
ImGui::Checkbox("Share play/edit offset/range",&pianoSharePosition);
ImGui::Checkbox("Read-only (can't input notes)",&pianoReadonly);
ImGui::EndPopup();
}
if (mobileUI && portrait) {
ImGui::SameLine();
}
if (pianoOptionsSet) {
if (ImGui::Button("REL##PianoNMRel",optionSize)) {
if (edit) noteInput(0,GUI_NOTE_RELEASE);
}
ImGui::SameLine();
if (ImGui::Button(ICON_FA_TIMES "##PianoDelP",optionSize)) {
doDelete();
}
} else {
if (ImGui::Button(ICON_FA_MINUS "##PianoOctaveDown",optionSize)) {
oct--;
if (oct<1) oct=1;
}
ImGui::SameLine();
if (ImGui::Button(ICON_FA_PLUS "##PianoOctaveUp",optionSize)) {
oct++;
if (oct>15) oct=15;
if ((off+oct)>14) off=15-oct;
}
}
ImGui::SameLine();
if (ImGui::Button(ICON_FA_ELLIPSIS_H "##PianoSel",optionSize)) {
pianoOptionsSet=!pianoOptionsSet;
}
}
if (mobileUI && portrait) {
ImGui::TableNextRow();
}
ImGui::TableNextColumn();
if (pianoInputPadMode==PIANO_INPUT_PAD_REPLACE && cursor.xFine>0 && curWindow==GUI_WINDOW_PATTERN) {
ImVec2 buttonSize=ImGui::GetContentRegionAvail();
if (ImGui::BeginTable("InputPadP",8,ImGuiTableFlags_SizingFixedSame)) {
ImGui::TableNextRow();
ImGui::TableNextColumn();
buttonSize.x/=8.0f;
buttonSize.x-=ImGui::GetStyle().CellPadding.x*2.0f;
buttonSize.y/=2.0f;
buttonSize.y-=ImGui::GetStyle().CellPadding.y*2.0f;
VALUE_DIGIT(0,"0");
ImGui::TableNextColumn();
VALUE_DIGIT(1,"1");
ImGui::TableNextColumn();
VALUE_DIGIT(2,"2");
ImGui::TableNextColumn();
VALUE_DIGIT(3,"3");
ImGui::TableNextColumn();
VALUE_DIGIT(4,"4");
ImGui::TableNextColumn();
VALUE_DIGIT(5,"5");
ImGui::TableNextColumn();
VALUE_DIGIT(6,"6");
ImGui::TableNextColumn();
VALUE_DIGIT(7,"7");
ImGui::TableNextRow();
ImGui::TableNextColumn();
VALUE_DIGIT(8,"8");
ImGui::TableNextColumn();
VALUE_DIGIT(9,"9");
ImGui::TableNextColumn();
VALUE_DIGIT(10,"A");
ImGui::TableNextColumn();
VALUE_DIGIT(11,"B");
ImGui::TableNextColumn();
VALUE_DIGIT(12,"C");
ImGui::TableNextColumn();
VALUE_DIGIT(13,"D");
ImGui::TableNextColumn();
VALUE_DIGIT(14,"E");
ImGui::TableNextColumn();
VALUE_DIGIT(15,"F");
ImGui::EndTable();
}
} else {
ImGuiWindow* window=ImGui::GetCurrentWindow();
ImVec2 size=ImGui::GetContentRegionAvail();
ImDrawList* dl=ImGui::GetWindowDrawList();
ImVec2 minArea=window->DC.CursorPos;
ImVec2 maxArea=ImVec2(
minArea.x+size.x,
minArea.y+size.y
);
ImRect rect=ImRect(minArea,maxArea);
// render piano
//ImGui::ItemSize(size,ImGui::GetStyle().FramePadding.y);
if (ImGui::ItemAdd(rect,ImGui::GetID("pianoDisplay"))) {
bool canInput=false;
if (!pianoReadonly && ImGui::ItemHoverable(rect,ImGui::GetID("pianoDisplay"),0)) {
canInput=true;
ImGui::InhibitInertialScroll();
}
if (view) {
int notes=oct*12;
// evaluate input
if (canInput) for (TouchPoint& i: activePoints) {
if (rect.Contains(ImVec2(i.x,i.y))) {
int note=(((i.x-rect.Min.x)/(rect.Max.x-rect.Min.x))*notes)+12*off;
if (note<0) continue;
if (note>=180) continue;
pianoKeyPressed[note]=true;
}
}
for (int i=0; i<notes; i++) {
int note=i+12*off;
if (note<0) continue;
if (note>=180) continue;
float pkh=pianoKeyHit[note];
ImVec4 color=isTopKey[i%12]?uiColors[GUI_COLOR_PIANO_KEY_TOP]:uiColors[GUI_COLOR_PIANO_KEY_BOTTOM];
if (pianoKeyPressed[note]) {
color=isTopKey[i%12]?uiColors[GUI_COLOR_PIANO_KEY_TOP_ACTIVE]:uiColors[GUI_COLOR_PIANO_KEY_BOTTOM_ACTIVE];
} else {
ImVec4 colorHit=isTopKey[i%12]?uiColors[GUI_COLOR_PIANO_KEY_TOP_HIT]:uiColors[GUI_COLOR_PIANO_KEY_BOTTOM_HIT];
color.x+=(colorHit.x-color.x)*pkh;
color.y+=(colorHit.y-color.y)*pkh;
color.z+=(colorHit.z-color.z)*pkh;
color.w+=(colorHit.w-color.w)*pkh;
}
ImVec2 p0=ImLerp(rect.Min,rect.Max,ImVec2((float)i/notes,0.0f));
ImVec2 p1=ImLerp(rect.Min,rect.Max,ImVec2((float)(i+1)/notes,1.0f));
p1.x-=dpiScale;
dl->AddRectFilled(p0,p1,ImGui::ColorConvertFloat4ToU32(color));
if ((i%12)==0) {
String label=fmt::sprintf("%d",(note-60)/12);
ImVec2 pText=ImLerp(p0,p1,ImVec2(0.5f,1.0f));
ImVec2 labelSize=ImGui::CalcTextSize(label.c_str());
pText.x-=labelSize.x*0.5f;
pText.y-=labelSize.y+ImGui::GetStyle().ItemSpacing.y;
dl->AddText(pText,0xff404040,label.c_str());
}
}
} else {
int bottomNotes=7*oct;
// evaluate input
if (canInput) for (TouchPoint& i: activePoints) {
if (rect.Contains(ImVec2(i.x,i.y))) {
// top
int o=((i.x-rect.Min.x)/(rect.Max.x-rect.Min.x))*oct;
ImVec2 op0=ImLerp(rect.Min,rect.Max,ImVec2((float)o/oct,0.0f));
ImVec2 op1=ImLerp(rect.Min,rect.Max,ImVec2((float)(o+1)/oct,1.0f));
bool foundTopKey=false;
for (int j=0; j<5; j++) {
int note=topKeyNotes[j]+12*(o+off);
if (note<0) continue;
if (note>=180) continue;
ImRect keyRect=ImRect(
ImLerp(op0,op1,ImVec2(topKeyStarts[j]-0.05f,0.0f)),
ImLerp(op0,op1,ImVec2(topKeyStarts[j]+0.05f,0.64f))
);
if (keyRect.Contains(ImVec2(i.x,i.y))) {
pianoKeyPressed[note]=true;
foundTopKey=true;
break;
}
}
if (foundTopKey) continue;
// bottom
int n=((i.x-rect.Min.x)/(rect.Max.x-rect.Min.x))*bottomNotes;
int note=bottomKeyNotes[n%7]+12*((n/7)+off);
if (note<0) continue;
if (note>=180) continue;
pianoKeyPressed[note]=true;
}
}
for (int i=0; i<bottomNotes; i++) {
int note=bottomKeyNotes[i%7]+12*((i/7)+off);
if (note<0) continue;
if (note>=180) continue;
float pkh=pianoKeyHit[note];
ImVec4 color=uiColors[GUI_COLOR_PIANO_KEY_BOTTOM];
if (pianoKeyPressed[note]) {
color=uiColors[GUI_COLOR_PIANO_KEY_BOTTOM_ACTIVE];
} else {
ImVec4 colorHit=uiColors[GUI_COLOR_PIANO_KEY_BOTTOM_HIT];
color.x+=(colorHit.x-color.x)*pkh;
color.y+=(colorHit.y-color.y)*pkh;
color.z+=(colorHit.z-color.z)*pkh;
color.w+=(colorHit.w-color.w)*pkh;
}
ImVec2 p0=ImLerp(rect.Min,rect.Max,ImVec2((float)i/bottomNotes,0.0f));
ImVec2 p1=ImLerp(rect.Min,rect.Max,ImVec2((float)(i+1)/bottomNotes,1.0f));
p1.x-=dpiScale;
dl->AddRectFilled(p0,p1,ImGui::ColorConvertFloat4ToU32(color));
if ((i%7)==0) {
String label=fmt::sprintf("%d",(note-60)/12);
ImVec2 pText=ImLerp(p0,p1,ImVec2(0.5f,1.0f));
ImVec2 labelSize=ImGui::CalcTextSize(label.c_str());
pText.x-=labelSize.x*0.5f;
pText.y-=labelSize.y+ImGui::GetStyle().ItemSpacing.y;
dl->AddText(pText,0xff404040,label.c_str());
}
}
for (int i=0; i<oct; i++) {
ImVec2 op0=ImLerp(rect.Min,rect.Max,ImVec2((float)i/oct,0.0f));
ImVec2 op1=ImLerp(rect.Min,rect.Max,ImVec2((float)(i+1)/oct,1.0f));
for (int j=0; j<5; j++) {
int note=topKeyNotes[j]+12*(i+off);
if (note<0) continue;
if (note>=180) continue;
float pkh=pianoKeyHit[note];
ImVec4 color=uiColors[GUI_COLOR_PIANO_KEY_TOP];
if (pianoKeyPressed[note]) {
color=uiColors[GUI_COLOR_PIANO_KEY_TOP_ACTIVE];
} else {
ImVec4 colorHit=uiColors[GUI_COLOR_PIANO_KEY_TOP_HIT];
color.x+=(colorHit.x-color.x)*pkh;
color.y+=(colorHit.y-color.y)*pkh;
color.z+=(colorHit.z-color.z)*pkh;
color.w+=(colorHit.w-color.w)*pkh;
}
ImVec2 p0=ImLerp(op0,op1,ImVec2(topKeyStarts[j]-0.05f,0.0f));
ImVec2 p1=ImLerp(op0,op1,ImVec2(topKeyStarts[j]+0.05f,0.64f));
dl->AddRectFilled(p0,p1,ImGui::GetColorU32(uiColors[GUI_COLOR_PIANO_BACKGROUND]));
p0.x+=dpiScale;
p1.x-=dpiScale;
p1.y-=dpiScale;
dl->AddRectFilled(p0,p1,ImGui::ColorConvertFloat4ToU32(color));
}
}
}
const float reduction=ImGui::GetIO().DeltaTime*60.0f*0.12;
for (int i=0; i<180; i++) {
pianoKeyHit[i]-=reduction;
if (pianoKeyHit[i]<0) pianoKeyHit[i]=0;
}
}
if (ImGui::IsItemClicked(ImGuiMouseButton_Right)) {
pianoOptions=!pianoOptions;
}
// first check released keys
for (int i=0; i<180; i++) {
int note=i-60;
if (!pianoKeyPressed[i]) {
if (pianoKeyPressed[i]!=oldPianoKeyPressed[i]) {
switch (curWindow) {
case GUI_WINDOW_WAVE_LIST:
case GUI_WINDOW_WAVE_EDIT:
e->stopWavePreview();
break;
case GUI_WINDOW_SAMPLE_LIST:
case GUI_WINDOW_SAMPLE_EDIT:
e->stopSamplePreview();
break;
default:
e->synchronized([this,note]() {
e->autoNoteOff(-1,note);
});
break;
}
}
}
}
// then pressed ones
for (int i=0; i<180; i++) {
int note=i-60;
if (pianoKeyPressed[i]) {
if (pianoKeyPressed[i]!=oldPianoKeyPressed[i]) {
switch (curWindow) {
case GUI_WINDOW_WAVE_LIST:
case GUI_WINDOW_WAVE_EDIT:
e->previewWave(curWave,note);
break;
case GUI_WINDOW_SAMPLE_LIST:
case GUI_WINDOW_SAMPLE_EDIT:
e->previewSample(curSample,note);
break;
default:
if (sampleMapWaitingInput) {
alterSampleMap(true,note);
} else {
e->synchronized([this,note]() {
e->autoNoteOn(-1,curIns,note);
});
if (edit && curWindow!=GUI_WINDOW_INS_LIST && curWindow!=GUI_WINDOW_INS_EDIT) noteInput(note,0);
}
break;
}
}
}
}
}
ImGui::EndTable();
}
}
// don't worry about it
//if (ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows)) curWindow=GUI_WINDOW_PIANO;
ImGui::End();
// draw input pad if necessary
if ((curWindow==GUI_WINDOW_PATTERN || !mobileUI) && ((pianoInputPadMode==PIANO_INPUT_PAD_SPLIT_AUTO && cursor.xFine>0) || pianoInputPadMode==PIANO_INPUT_PAD_SPLIT_VISIBLE)) {
if (ImGui::Begin("Input Pad",NULL,ImGuiWindowFlags_NoTitleBar)) {
ImGui::BeginDisabled(cursor.xFine==0);
if (ImGui::BeginTable("InputPad",3,ImGuiTableFlags_Borders)) {
ImGui::TableNextRow();
ImGui::TableNextColumn();
ImVec2 buttonSize=ImGui::GetContentRegionAvail();
buttonSize.y/=6.0f;
buttonSize.y-=ImGui::GetStyle().CellPadding.y*2.0f;
VALUE_DIGIT(10,"A");
ImGui::TableNextColumn();
VALUE_DIGIT(11,"B");
ImGui::TableNextColumn();
VALUE_DIGIT(12,"C");
ImGui::TableNextRow();
ImGui::TableNextColumn();
VALUE_DIGIT(13,"D");
ImGui::TableNextColumn();
VALUE_DIGIT(14,"E");
ImGui::TableNextColumn();
VALUE_DIGIT(15,"F");
ImGui::TableNextRow();
ImGui::TableNextColumn();
VALUE_DIGIT(1,"1");
ImGui::TableNextColumn();
VALUE_DIGIT(2,"2");
ImGui::TableNextColumn();
VALUE_DIGIT(3,"3");
ImGui::TableNextRow();
ImGui::TableNextColumn();
VALUE_DIGIT(4,"4");
ImGui::TableNextColumn();
VALUE_DIGIT(5,"5");
ImGui::TableNextColumn();
VALUE_DIGIT(6,"6");
ImGui::TableNextRow();
ImGui::TableNextColumn();
VALUE_DIGIT(7,"7");
ImGui::TableNextColumn();
VALUE_DIGIT(8,"8");
ImGui::TableNextColumn();
VALUE_DIGIT(9,"9");
ImGui::TableNextRow();
ImGui::TableNextColumn();
if (ImGui::Button(ICON_FA_TIMES "##PianoDel",buttonSize)) {
doDelete();
}
ImGui::TableNextColumn();
VALUE_DIGIT(0,"0");
ImGui::TableNextColumn();
ImGui::EndTable();
}
ImGui::EndDisabled();
}
// don't worry about it either
//if (ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows)) curWindow=GUI_WINDOW_PIANO;
ImGui::End();
}
}
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