Canvas Gui and styling improvements, helper fns

src/app/gui/pipeline.cc

@@ -81,7 +81,7 @@ void GraphicsBinCanvasPipeline(int width, int height, int tile_size,
         if (key >= 1) {
           top_left_y = canvas.zero_point().y + height * key;
         }
-        canvas.GetDrawList()->AddImage(
+        canvas.draw_list()->AddImage(
             (void*)value.texture(),
             ImVec2(canvas.zero_point().x + 2, top_left_y),
             ImVec2(canvas.zero_point().x + 0x100,
@@ -113,7 +113,7 @@ void GraphicsManagerCanvasPipeline(int width, int height, int tile_size,
         if (key >= 1) {
           top_left_y = canvas.zero_point().y + height * key;
         }
-        canvas.GetDrawList()->AddImage(
+        canvas.draw_list()->AddImage(
             (void*)value->texture(),
             ImVec2(canvas.zero_point().x + 2, top_left_y),
             ImVec2(canvas.zero_point().x + 0x100,

src/app/gui/style.cc

@@ -7,8 +7,9 @@ namespace yaze {
 namespace app {
 namespace gui {
 
-void BeginWindowWithDisplaySettings(const char* id, bool* active, const ImVec2& size,
-                    ImGuiWindowFlags flags) {
+void BeginWindowWithDisplaySettings(const char* id, bool* active,
+                                    const ImVec2& size,
+                                    ImGuiWindowFlags flags) {
   ImGuiStyle* ref = &ImGui::GetStyle();
   static float childBgOpacity = 0.75f;
   auto color = ImVec4(0.f, 0.f, 0.f, childBgOpacity);
@@ -31,6 +32,31 @@ void EndWindowWithDisplaySettings() {
   ImGui::PopStyleColor(3);
 }
 
+void BeginPadding(int i) {
+  ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(i, i));
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(i, i));
+}
+void EndPadding() { EndNoPadding(); }
+
+void BeginNoPadding() {
+  ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0, 0));
+  ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0, 0));
+}
+void EndNoPadding() { ImGui::PopStyleVar(2); }
+
+void BeginChildWithScrollbar(int id) {
+  ImGuiID child_id = ImGui::GetID((void*)(intptr_t)id);
+  ImGui::BeginChild(child_id, ImGui::GetContentRegionAvail(), true,
+                    ImGuiWindowFlags_AlwaysVerticalScrollbar);
+}
+
+void BeginChildBothScrollbars(int id) {
+  ImGuiID child_id = ImGui::GetID((void*)(intptr_t)id);
+  ImGui::BeginChild(child_id, ImGui::GetContentRegionAvail(), true,
+                    ImGuiWindowFlags_AlwaysVerticalScrollbar |
+                        ImGuiWindowFlags_AlwaysHorizontalScrollbar);
+}
+
 void DrawDisplaySettings(ImGuiStyle* ref) {
   // You can pass in a reference ImGuiStyle structure to compare to, revert to
   // and save to (without a reference style pointer, we will use one compared

src/app/gui/style.h

@@ -15,6 +15,16 @@ void BeginWindowWithDisplaySettings(const char* id, bool* active,
 
 void EndWindowWithDisplaySettings();
 
+void BeginPadding(int i);
+void EndPadding();
+
+void BeginNoPadding();
+void EndNoPadding();
+
+void BeginChildWithScrollbar(int id);
+
+void BeginChildBothScrollbars(int id);
+
 void DrawDisplaySettings(ImGuiStyle* ref = nullptr);
 
 void TextWithSeparators(const absl::string_view& text);