TODO: revamp new song system picker

src/engine/engine.cpp

@@ -19,6 +19,7 @@
 
 #include "dataErrors.h"
 #include "song.h"
+#include <cstddef>
 #define _USE_MATH_DEFINES
 #include "engine.h"
 #include "instrument.h"
@@ -533,13 +534,25 @@ void DivEngine::renderSamples() {
   qsoundMemLen=memPos+256;
 }
 
-void DivEngine::createNew() {
-  DivSystem sys=song.system[0];
+void DivEngine::createNew(int* description) {
   quitDispatch();
   isBusy.lock();
   song.unload();
   song=DivSong();
-  song.system[0]=sys;
+  if (description!=NULL) {
+    if (description[0]!=0) {
+      int index=0;
+      for (int i=0; description[i]; i+=4) {
+        song.system[index]=(DivSystem)description[i];
+        song.systemVol[index]=description[i+1];
+        song.systemPan[index]=description[i+2];
+        song.systemFlags[index]=description[i+3];
+        index++;
+        if (index>=32) break;
+      }
+      song.systemLen=index;
+    }
+  }
   recalcChans();
   renderSamples();
   isBusy.unlock();

src/engine/engine.h

@@ -262,7 +262,7 @@ class DivEngine {
     DivWavetable* getWave(int index);
     DivSample* getSample(int index);
     // start fresh
-    void createNew();
+    void createNew(int* description);
     // load a file.
     bool load(unsigned char* f, size_t length);
     // save as .dmf.

src/gui/gui.cpp

@@ -1898,6 +1898,73 @@ void FurnaceGUI::drawDebug() {
   ImGui::End();
 }
 
+#define NEWSONG_CATEGORY(x) \
+  if (ImGui::Selectable(x,false,ImGuiSelectableFlags_DontClosePopups)) { \
+    printf("selected a category\n"); \
+  }
+
+void FurnaceGUI::drawNewSong() {
+  bool accepted=false;
+
+  ImGui::PushFont(bigFont);
+  ImGui::SetCursorPosX((ImGui::GetContentRegionAvail().x-ImGui::CalcTextSize("Choose a System!").x)*0.5);
+  ImGui::Text("Choose a System!");
+  ImGui::PopFont();
+
+  if (ImGui::BeginTable("sysPicker",2,ImGuiTableFlags_Borders)) {
+    ImGui::TableSetupColumn("c0",ImGuiTableColumnFlags_WidthFixed,0.0f);
+    ImGui::TableSetupColumn("c1",ImGuiTableColumnFlags_WidthStretch,0.0f);
+
+    ImGui::TableNextRow(ImGuiTableRowFlags_Headers);
+    ImGui::TableNextColumn();
+    ImGui::Text("Categories");
+    ImGui::TableNextColumn();
+    ImGui::Text("Systems");
+
+    ImGui::TableNextRow();
+
+    // CATEGORIES
+    ImGui::TableNextColumn();
+    NEWSONG_CATEGORY("All chips");
+    NEWSONG_CATEGORY("FM");
+    NEWSONG_CATEGORY("Square");
+    NEWSONG_CATEGORY("Sample");
+    NEWSONG_CATEGORY("Wavetable");
+    NEWSONG_CATEGORY("Other/Special");
+    NEWSONG_CATEGORY("Game consoles");
+    NEWSONG_CATEGORY("Computers");
+    NEWSONG_CATEGORY("Arcade systems");
+    NEWSONG_CATEGORY("DefleMask-compatible");
+
+    // SYSTEMS
+    ImGui::TableNextColumn();
+    if (ImGui::BeginTable("Systems",1,ImGuiTableFlags_BordersInnerV|ImGuiTableFlags_ScrollY)) {
+      ImGui::TableNextRow();
+      ImGui::TableNextColumn();
+      ImGui::Selectable("System system",false,ImGuiSelectableFlags_DontClosePopups);
+      ImGui::EndTable();
+    }
+
+    ImGui::EndTable();
+  }
+
+  if (ImGui::Button("Go ahead") || accepted) {
+    e->createNew(nextDesc);
+    undoHist.clear();
+    redoHist.clear();
+    curFileName="";
+    modified=false;
+    curNibble=false;
+    orderNibble=false;
+    orderCursor=-1;
+    selStart=SelectionPoint();
+    selEnd=SelectionPoint();
+    cursor=SelectionPoint();
+    updateWindowTitle();
+    ImGui::CloseCurrentPopup();
+  }
+}
+
 void FurnaceGUI::drawStats() {
   if (nextWindow==GUI_WINDOW_STATS) {
     statsOpen=true;
@@ -4391,22 +4458,11 @@ bool FurnaceGUI::loop() {
 
     ImGui::BeginMainMenuBar();
     if (ImGui::BeginMenu("file")) {
-      if (ImGui::MenuItem("new")) {
+      if (ImGui::MenuItem("new...")) {
         if (modified) {
           showWarning("Unsaved changes! Are you sure?",GUI_WARN_NEW);
         } else {
-          e->createNew();
-          undoHist.clear();
-          redoHist.clear();
-          curFileName="";
-          modified=false;
-          curNibble=false;
-          orderNibble=false;
-          orderCursor=-1;
-          selStart=SelectionPoint();
-          selEnd=SelectionPoint();
-          cursor=SelectionPoint();
-          updateWindowTitle();
+          displayNew=true;
         }
       }
       if (ImGui::MenuItem("open...",BIND_FOR(GUI_ACTION_OPEN))) {
@@ -5107,6 +5163,11 @@ bool FurnaceGUI::loop() {
       ImGui::OpenPopup("Rendering...");
     }
 
+    if (displayNew) {
+      displayNew=false;
+      ImGui::OpenPopup("New Song");
+    }
+
     if (nextWindow==GUI_WINDOW_ABOUT) {
       aboutOpen=true;
       nextWindow=GUI_WINDOW_NOTHING;
@@ -5126,6 +5187,13 @@ bool FurnaceGUI::loop() {
       ImGui::EndPopup();
     }
 
+    ImGui::SetNextWindowSizeConstraints(ImVec2(400.0f*dpiScale,200.0f*dpiScale),ImVec2(scrW*dpiScale,scrH*dpiScale));
+    if (ImGui::BeginPopupModal("New Song",NULL)) {
+      ImGui::SetWindowPos(ImVec2(((scrW*dpiScale)-ImGui::GetWindowSize().x)*0.5,((scrH*dpiScale)-ImGui::GetWindowSize().y)*0.5));
+      drawNewSong();
+      ImGui::EndPopup();
+    }
+
     if (ImGui::BeginPopupModal("Error",NULL,ImGuiWindowFlags_AlwaysAutoResize)) {
       ImGui::Text("%s",errorString.c_str());
       if (ImGui::Button("OK")) {
@@ -5143,18 +5211,7 @@ bool FurnaceGUI::loop() {
             quit=true;
             break;
           case GUI_WARN_NEW:
-            e->createNew();
-            undoHist.clear();
-            redoHist.clear();
-            curFileName="";
-            modified=false;
-            curNibble=false;
-            orderNibble=false;
-            orderCursor=-1;
-            selStart=SelectionPoint();
-            selEnd=SelectionPoint();
-            cursor=SelectionPoint();
-            updateWindowTitle();
+            displayNew=true;
             break;
           case GUI_WARN_OPEN:
             openFileDialog(GUI_FILE_OPEN);
@@ -5743,6 +5800,7 @@ FurnaceGUI::FurnaceGUI():
   displayError(false),
   displayExporting(false),
   vgmExportLoop(true),
+  displayNew(false),
   curFileDialog(GUI_FILE_OPEN),
   warnAction(GUI_WARN_OPEN),
   scrW(1280),
@@ -5804,6 +5862,7 @@ FurnaceGUI::FurnaceGUI():
   wantPatName(false),
   curWindow(GUI_WINDOW_NOTHING),
   nextWindow(GUI_WINDOW_NOTHING),
+  nextDesc(NULL),
   wavePreviewOn(false),
   wavePreviewKey((SDL_Scancode)0),
   wavePreviewNote(0),
@@ -5924,6 +5983,23 @@ FurnaceGUI::FurnaceGUI():
   valueKeys[SDLK_KP_8]=8;
   valueKeys[SDLK_KP_9]=9;
   
+  /*
+const char* sysCategories[]={
+  "All chips",
+  "FM",
+  "Square",
+  "Sample",
+  "Wavetable",
+  "Other/Special",
+  "Game consoles",
+  "Computers",
+  "Arcade systems",
+  "DefleMask-compatible"
+};
+*/
+
+  sysCategories.push_back(FurnaceGUISysCategory("All chips"));
+
   memset(willExport,1,32*sizeof(bool));
 
   peak[0]=0;

src/gui/gui.h

@@ -402,6 +402,22 @@ struct Particle {
     lifeSpeed(lS) {}
 };
 
+struct FurnaceGUISysDef {
+  const char* name;
+  const int* definition;
+  FurnaceGUISysDef(const char* n, const int* def):
+    name(n), definition(def) {}
+};
+
+struct FurnaceGUISysCategory {
+  const char* name;
+  std::vector<FurnaceGUISysDef> systems;
+  FurnaceGUISysCategory(const char* n):
+    name(n) {}
+  FurnaceGUISysCategory():
+    name(NULL) {}
+};
+
 class FurnaceGUI {
   DivEngine* e;
 
@@ -413,6 +429,7 @@ class FurnaceGUI {
   String mmlStringW;
 
   bool quit, warnQuit, willCommit, edit, modified, displayError, displayExporting, vgmExportLoop;
+  bool displayNew;
   bool willExport[32];
 
   FurnaceGUIFileDialogs curFileDialog;
@@ -533,6 +550,7 @@ class FurnaceGUI {
   float peak[2];
   float patChanX[DIV_MAX_CHANS+1];
   float patChanSlideY[DIV_MAX_CHANS+1];
+  int* nextDesc;
 
   // bit 31: ctrl
   // bit 30: reserved for SDL scancode mask
@@ -563,6 +581,8 @@ class FurnaceGUI {
   std::vector<DivCommand> cmdStream;
   std::vector<Particle> particles;
 
+  std::vector<FurnaceGUISysCategory> sysCategories;
+
   bool wavePreviewOn;
   SDL_Scancode wavePreviewKey;
   int wavePreviewNote;
@@ -657,6 +677,7 @@ class FurnaceGUI {
   void drawAbout();
   void drawSettings();
   void drawDebug();
+  void drawNewSong();
 
   void parseKeybinds();
   void promptKey(int which);