2022-03-21 22:34:43 +00:00
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/**
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* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2022 tildearrow and contributors
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "gui.h"
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#include "guiConst.h"
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2022-04-13 08:24:49 +00:00
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#include "imgui.h"
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#include "imgui_internal.h"
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const float topKeyStarts[5]={
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0.9f/7.0f, 2.1f/7.0f, 3.9f/7.0f, 5.0f/7.0f, 6.1f/7.0f
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};
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const int topKeyNotes[5]={
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1, 3, 6, 8, 10
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};
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const int bottomKeyNotes[7]={
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0, 2, 4, 5, 7, 9, 11
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};
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2022-03-21 22:34:43 +00:00
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2022-04-11 23:12:05 +00:00
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// TODO: actually implement a piano!
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2022-03-21 22:34:43 +00:00
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void FurnaceGUI::drawPiano() {
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if (nextWindow==GUI_WINDOW_PIANO) {
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pianoOpen=true;
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ImGui::SetNextWindowFocus();
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nextWindow=GUI_WINDOW_NOTHING;
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}
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if (!pianoOpen) return;
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2022-04-13 08:24:49 +00:00
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if (ImGui::Begin("Piano",&pianoOpen,(pianoOptions)?0:ImGuiWindowFlags_NoTitleBar)) {
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if (ImGui::BeginTable("PianoLayout",pianoOptions?2:1,ImGuiTableFlags_BordersInnerV)) {
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if (pianoOptions) {
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ImGui::TableSetupColumn("c0",ImGuiTableColumnFlags_WidthFixed);
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}
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ImGui::TableSetupColumn("c1",ImGuiTableColumnFlags_WidthStretch);
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ImGui::TableNextRow();
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if (pianoOptions) {
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ImGui::TableNextColumn();
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ImGui::Button("Options");
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}
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ImGui::TableNextColumn();
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ImGuiWindow* window=ImGui::GetCurrentWindow();
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ImVec2 size=ImGui::GetContentRegionAvail();
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ImDrawList* dl=ImGui::GetWindowDrawList();
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ImVec2 minArea=window->DC.CursorPos;
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ImVec2 maxArea=ImVec2(
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minArea.x+size.x,
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minArea.y+size.y
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);
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ImRect rect=ImRect(minArea,maxArea);
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// render piano
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//ImGui::ItemSize(size,ImGui::GetStyle().FramePadding.y);
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if (ImGui::ItemAdd(rect,ImGui::GetID("pianoDisplay"))) {
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int bottomNotes=7*pianoOctaves;
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for (int i=0; i<bottomNotes; i++) {
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int note=bottomKeyNotes[i%7]+12*((i/7)+pianoOffset);
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if (note<0) continue;
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if (note>=180) continue;
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float pkh=pianoKeyHit[note]*0.5;
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ImVec4 color=ImVec4(1.0f-pkh,1.0f-pkh,1.0f-pkh,1.0f);
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ImVec2 p0=ImLerp(rect.Min,rect.Max,ImVec2((float)i/bottomNotes,0.0f));
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ImVec2 p1=ImLerp(rect.Min,rect.Max,ImVec2((float)(i+1)/bottomNotes,1.0f));
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p1.x-=dpiScale;
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dl->AddRectFilled(p0,p1,ImGui::ColorConvertFloat4ToU32(color));
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}
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for (int i=0; i<pianoOctaves; i++) {
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ImVec2 op0=ImLerp(rect.Min,rect.Max,ImVec2((float)i/pianoOctaves,0.0f));
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ImVec2 op1=ImLerp(rect.Min,rect.Max,ImVec2((float)(i+1)/pianoOctaves,1.0f));
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for (int j=0; j<5; j++) {
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int note=topKeyNotes[j]+12*(i+pianoOffset);
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if (note<0) continue;
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if (note>=180) continue;
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float pkh=pianoKeyHit[note]*0.5;
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ImVec4 color=ImVec4(pkh,pkh,pkh,1.0f);
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ImVec2 p0=ImLerp(op0,op1,ImVec2(topKeyStarts[j]-0.05f,0.0f));
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ImVec2 p1=ImLerp(op0,op1,ImVec2(topKeyStarts[j]+0.05f,0.64f));
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dl->AddRectFilled(p0,p1,0xff000000);
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p0.x+=dpiScale;
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p1.x-=dpiScale;
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p1.y-=dpiScale;
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dl->AddRectFilled(p0,p1,ImGui::ColorConvertFloat4ToU32(color));
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}
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}
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const float reduction=ImGui::GetIO().DeltaTime*60.0f*0.12;
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for (int i=0; i<180; i++) {
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pianoKeyHit[i]-=reduction;
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if (pianoKeyHit[i]<0) pianoKeyHit[i]=0;
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}
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}
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if (ImGui::IsItemClicked(ImGuiMouseButton_Right)) {
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pianoOptions=!pianoOptions;
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}
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ImGui::EndTable();
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}
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/*
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2022-03-21 22:34:43 +00:00
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for (int i=0; i<e->getTotalChannelCount(); i++) {
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DivChannelState* cs=e->getChanState(i);
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if (cs->keyOn) {
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const char* noteName=NULL;
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if (cs->note<-60 || cs->note>120) {
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noteName="???";
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} else {
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noteName=noteNames[cs->note+60];
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}
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ImGui::Text("%d: %s",i,noteName);
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}
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2022-04-13 08:24:49 +00:00
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}*/
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2022-03-21 22:34:43 +00:00
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}
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if (ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows)) curWindow=GUI_WINDOW_PIANO;
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ImGui::End();
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}
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