Add the option to open the ImGui demo from the main menu for debugging

CleverRaven · Mar 4, 2024 · 16632b7 · 16632b7
1 parent 8a59431
commit 16632b7
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Showing 3 changed files with 77 additions and 1 deletion.
diff --git a/src/cata_imgui.cpp b/src/cata_imgui.cpp
@@ -436,7 +436,7 @@ void cataimgui::window::draw()
     }
     if( ImGui::Begin( id.c_str(), &is_open, window_flags ) ) {
         draw_controls();
-        if( p_impl->window_adaptor->is_on_top ) {
+        if( p_impl->window_adaptor->is_on_top && !force_to_back ) {
             ImGui::BringWindowToDisplayFront( ImGui::GetCurrentWindow() );
         }
     }

diff --git a/src/cata_imgui.h b/src/cata_imgui.h
@@ -92,6 +92,7 @@ class window
         void mark_resized();
 
     protected:
+        bool force_to_back = false;
         bool is_open;
         std::string id;
         int window_flags;

diff --git a/src/main_menu.cpp b/src/main_menu.cpp
@@ -53,6 +53,69 @@
 #include "wcwidth.h"
 #include "worldfactory.h"
 
+#if !defined(__ANDROID__)
+#include "cata_imgui.h"
+#include "imgui/imgui.h"
+
+class demo_ui : public cataimgui::window
+{
+    public:
+        demo_ui();
+        void init();
+        void run();
+
+    protected:
+        void draw_controls() override;
+        cataimgui::bounds get_bounds() override;
+        void on_resized() override {
+            init();
+        };
+};
+
+demo_ui::demo_ui() : cataimgui::window( _( "ImGui Demo Screen" ) )
+{
+}
+
+cataimgui::bounds demo_ui::get_bounds()
+{
+    return { -1.f, -1.f, float( str_width_to_pixels( TERMX ) ), float( str_height_to_pixels( TERMY ) ) };
+}
+
+void demo_ui::draw_controls()
+{
+    ImGui::ShowDemoWindow();
+}
+
+void demo_ui::init()
+{
+    // The demo makes it's own screen.  Don't get in the way
+    force_to_back = true;
+}
+
+void demo_ui::run()
+{
+    init();
+
+    input_context ctxt( "HELP_KEYBINDINGS" );
+    ctxt.register_action( "QUIT" );
+    ctxt.register_action( "SELECT" );
+    ctxt.register_action( "MOUSE_MOVE" );
+    ctxt.register_action( "ANY_INPUT" );
+    ctxt.register_action( "HELP_KEYBINDINGS" );
+    std::string action;
+
+    ui_manager::redraw();
+
+    while( is_open ) {
+        ui_manager::redraw();
+        action = ctxt.handle_input();
+        if( action == "QUIT" ) {
+            break;
+        }
+    }
+}
+#endif
+
 static const mod_id MOD_INFORMATION_dda( "dda" );
 
 enum class main_menu_opts : int {
@@ -510,6 +573,11 @@ void main_menu::init_strings()
     vSettingsSubItems.emplace_back( pgettext( "Main Menu|Settings", "A<u|U>topickup" ) );
     vSettingsSubItems.emplace_back( pgettext( "Main Menu|Settings", "Sa<f|F>emode" ) );
     vSettingsSubItems.emplace_back( pgettext( "Main Menu|Settings", "Colo<r|R>s" ) );
+#if !defined(__ANDROID__)
+    if( get_options().has_option( "USE_IMGUI" ) && get_option<bool>( "USE_IMGUI" ) ) {
+        vSettingsSubItems.emplace_back( pgettext( "Main Menu|Settings", "<I|i>mGui Demo Screen" ) );
+    }
+#endif
 
     vSettingsHotkeys.clear();
     for( const std::string &item : vSettingsSubItems ) {
@@ -855,6 +923,13 @@ bool main_menu::opening_screen()
                         get_safemode().show();
                     } else if( sel2 == 4 ) { /// Colors
                         all_colors.show_gui();
+#if !defined(__ANDROID__)
+                    } else if( sel2 == 5 ) { /// ImGui demo
+                        if( get_options().has_option( "USE_IMGUI" ) && get_option<bool>( "USE_IMGUI" ) ) {
+                            demo_ui demo;
+                            demo.run();
+                        }
+#endif
                     }
                     break;
                 case main_menu_opts::WORLD: