From 6d8e6a9a55d039e6956ad9743667bdb465b9b179 Mon Sep 17 00:00:00 2001
From: tildearrow <me@tildearrow.org>
Date: Tue, 9 Apr 2024 19:29:42 -0500
Subject: [PATCH] GUI: user presets, part 1

---
 src/gui/gui.cpp     |  3 +-
 src/gui/gui.h       |  6 ++--
 src/gui/presets.cpp | 72 ++++++++++++++++++++++++++++++++++++++-------
 3 files changed, 66 insertions(+), 15 deletions(-)

diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index 5e214563b..2f1bb9a8e 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -7876,8 +7876,7 @@ FurnaceGUI::FurnaceGUI():
   curTutorialStep(0),
   audioExportType(0),
   dmfExportVersion(0),
-  curExportType(GUI_EXPORT_NONE),
-  selectedUserPreset(-1) {
+  curExportType(GUI_EXPORT_NONE) {
   // value keys
   valueKeys[SDLK_0]=0;
   valueKeys[SDLK_1]=1;
diff --git a/src/gui/gui.h b/src/gui/gui.h
index ebd9660e0..f0d85190a 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -2526,8 +2526,7 @@ class FurnaceGUI {
   FurnaceGUIExportTypes curExportType;
 
   // user presets window
-  int selectedUserPreset;
-  std::vector<int> selectedUserPresetSub;
+  std::vector<int> selectedUserPreset;
 
   std::vector<String> randomDemoSong;
 
@@ -2612,7 +2611,8 @@ class FurnaceGUI {
   void sampleListItem(int index, int dir, int asset);
 
   void drawSysDefs(std::vector<FurnaceGUISysDef>& category, bool& accepted, std::vector<int>& sysDefStack);
-  void printPresets(std::vector<FurnaceGUISysDef>& items, int depth);
+  void printPresets(std::vector<FurnaceGUISysDef>& items, size_t depth, std::vector<int>& depthStack);
+  FurnaceGUISysDef* selectPreset(std::vector<FurnaceGUISysDef>& items);
 
   void toggleMobileUI(bool enable, bool force=false);
 
diff --git a/src/gui/presets.cpp b/src/gui/presets.cpp
index aa4f98b19..78d5286bb 100644
--- a/src/gui/presets.cpp
+++ b/src/gui/presets.cpp
@@ -21,7 +21,9 @@
 #include "../baseutils.h"
 #include "../fileutils.h"
 #include <fmt/printf.h>
+#include "IconsFontAwesome4.h"
 #include <imgui.h>
+#include "misc/cpp/imgui_stdlib.h"
 
 // add system configurations here.
 // every entry is written in the following format:
@@ -3396,19 +3398,56 @@ bool FurnaceGUI::saveUserPresets(bool redundancy) {
 }
 
 // user presets management
-void FurnaceGUI::printPresets(std::vector<FurnaceGUISysDef>& items, int depth) {
+void FurnaceGUI::printPresets(std::vector<FurnaceGUISysDef>& items, size_t depth, std::vector<int>& depthStack) {
   if (depth>0) ImGui::Indent();
+  int index=0;
   for (FurnaceGUISysDef& i: items) {
-    if (ImGui::Selectable(i.name.c_str())) {
-      // TODO
+    bool isSelected=(selectedUserPreset.size()==(depth+1));
+    if (isSelected) {
+      for (size_t j=0; j<=depth; j++) {
+        int item=-1;
+        if (j>=depthStack.size()) {
+          item=index;
+        } else {
+          item=depthStack[j];
+        }
+
+        if (selectedUserPreset[j]!=item) {
+          isSelected=false;
+          break;
+        }
+      }
     }
+    ImGui::PushID(index+1);
+    if (ImGui::Selectable(i.name.c_str(),isSelected)) {
+      selectedUserPreset=depthStack;
+      selectedUserPreset.push_back(index);
+    }
+    ImGui::PopID();
     if (!i.subDefs.empty()) {
-      printPresets(i.subDefs,depth+1);
+      depthStack.push_back(index);
+      ImGui::PushID(index);
+      printPresets(i.subDefs,depth+1,depthStack);
+      ImGui::PopID();
+      depthStack.pop_back();
     }
+    index++;
   }
   if (depth>0) ImGui::Unindent();
 }
 
+FurnaceGUISysDef* FurnaceGUI::selectPreset(std::vector<FurnaceGUISysDef>& items) {
+  FurnaceGUISysDef* ret=NULL;
+  for (size_t i=0; i<selectedUserPreset.size(); i++) {
+    if (selectedUserPreset[i]<0 || selectedUserPreset[i]>(int)items.size()) return NULL;
+    ret=&items[selectedUserPreset[i]];
+    if (i<selectedUserPreset.size()-1) {
+      items=ret->subDefs;
+    }
+  }
+  return ret;
+}
+
 void FurnaceGUI::drawUserPresets() {
   if (nextWindow==GUI_WINDOW_USER_PRESETS) {
     userPresetsOpen=true;
@@ -3425,7 +3464,7 @@ void FurnaceGUI::drawUserPresets() {
       }
     }
 
-    //std::vector<int> depthStack;
+    std::vector<int> depthStack;
 
     if (userCategory==NULL) {
       ImGui::Text("Error! User category does not exist!");
@@ -3433,16 +3472,29 @@ void FurnaceGUI::drawUserPresets() {
       // preset list
       ImGui::TableNextRow();
       ImGui::TableNextColumn();
-      ImGui::Text("Presets...");
-      printPresets(userCategory->systems,0);
+      if (ImGui::Button(ICON_FA_PLUS "##AddPreset")) {
+        userCategory->systems.push_back(FurnaceGUISysDef("New Preset",{}));
+        selectedUserPreset.clear();
+        selectedUserPreset.push_back(userCategory->systems.size()-1);
+      }
+      printPresets(userCategory->systems,0,depthStack);
 
       // editor
       ImGui::TableNextColumn();
-      if (selectedUserPreset<0 || selectedUserPreset>=(int)userCategory->systems.size()) {
+      if (selectedUserPreset.empty()) {
         ImGui::Text("select a preset");
       } else {
-        
-        ImGui::Text("Edit...");
+        FurnaceGUISysDef* preset=selectPreset(userCategory->systems);
+
+        if (preset!=NULL) {
+          ImGui::AlignTextToFramePadding();
+          ImGui::Text("Name");
+          ImGui::SameLine();
+          ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
+          ImGui::InputText("##PName",&preset->name);
+          ImGui::Separator();
+          ImGui::Text("the rest...");
+        }
       }
 
       ImGui::EndTable();