Corrected dropdown behaviour

code/build.bat

@@ -1,13 +1,13 @@
 @echo off
 
-set CommonCompilerOptions=/Zi /FC /nologo /DVN_INTERNAL=1 /DVN_SLOW=1 /Oi /W4 /WL /WX /wd4201 /wd4305 /wd4244 /wd4100 /wd4505 /std:c++17
+set CommonCompilerOptions=/Zi /FC /nologo /DVN_INTERNAL=1 /DVN_SLOW=1 /Oi /W4 /WL /WX /wd4996 /wd4201 /wd4305 /wd4244 /wd4100 /wd4505 /std:c++17
 
 if not exist "../build" mkdir "../build"
 
 pushd "../build/"
 
-REM cl %CommonCompilerOptions% ../code/gen.cpp
+rem cl %CommonCompilerOptions% ../code/gen.cpp
-REM gen.exe
+rem gen.exe
 
 cl %CommonCompilerOptions% ../code/vn.cpp /LD /link /export:VN_UpdateAndRender /incremental:no
 cl %CommonCompilerOptions% ../code/win32_main.cpp /link user32.lib gdi32.lib winmm.lib opengl32.lib

code/gen_ui.cpp

@@ -63,7 +63,7 @@ static void GenUI(void)
             fprintf(Out, "{\n");
             fprintf(Out, "\tui *UI = UI_GetState();\n");
             fprintf(Out, "\tAssert(UI->Stacks.%sStackUsed > 0);\n", Stack.Name);
-            fprintf(Out, "\t--UI->Stacks.%sStackUsed;\n", Stack.Name, Stack.Name);
+            fprintf(Out, "\t--UI->Stacks.%sStackUsed;\n", Stack.Name);
             fprintf(Out, "}\n");
             
             fprintf(Out, "\n");

code/vn.cpp

@@ -38,6 +38,8 @@ VN_UPDATE_AND_RENDER(VN_UpdateAndRender)
         
         State->GlyphAtlas = CreateGlyphAtlas(RenderCommands);
         
+        //Config_AddS64(&State->Config, StrLit("Platform/RefreshRate"), &Input->RefreshRate);
+        
         Workspace_Init(&State->Workspace);
     }
     

code/vn_config.h

@@ -0,0 +1,29 @@
+/* date = June 17th 2023 10:48 pm */
+
+#ifndef VN_CONFIG_H
+#define VN_CONFIG_H
+
+struct config_entry
+{
+    string Name;
+    buffer Target;
+    
+    config_entry *Next;
+    config_entry *Prev;
+};
+
+struct config
+{
+    memory_arena Arena;
+    
+    config_entry *First;
+    config_entry *Last;
+};
+
+static void Config_ReadFile(config *Config, string Path);
+static void Config_WriteFile(config *Config);
+
+static void Config_AddEntry(config *Config, string Name, buffer Target);
+static void Config_AddS64(config *Config, string Name, s64 *Target);
+
+#endif //VN_CONFIG_H

code/vn_math.h

@@ -5,12 +5,24 @@
 
 #include "math.h"
 
+inline r32 Round(r32 Value)
+{
+    r32 Result = roundf(Value);
+    return(Result);
+}
+
 inline r32 Floor(r32 Value)
 {
     r32 Result = floorf(Value);
     return(Result);
 }
 
+inline r32 Ceil(r32 Value)
+{
+    r32 Result = ceilf(Value);
+    return(Result);
+}
+
 inline r32 Pow(r32 Base, r32 Exponent)
 {
     r32 Result = powf(Base, Exponent);

code/vn_platform.h

@@ -5,7 +5,7 @@
 
 #include "vn_core.h"
 
-// sixten: Services the platform provides to the game
+// sixten: Services the platform provides to the application
 
 struct platform_memory_block
 {
@@ -151,7 +151,7 @@ struct platform_event_list
 
 static platform_api Platform;
 
-// sixten: Services that the render backend provides to the game
+// sixten: Services that the render backend provides to the application
 
 #include "vn_render.h"
 
@@ -187,16 +187,20 @@ struct vn_render_commands
 #include "vn_string.h"
 #include "vn_thread_context.h"
 
-// sixten: Services the game provides to the platform
+// sixten: Services the application provides to the platform
 
 struct vn_input
 {
+    // sixten: Platform to application
     platform_event_list *EventList;
     
     v2 MouseP;
     v2 dMouseP;
     
     r32 dtForFrame;
+    
+    // sixten: Application to platform
+    s32 TargetRefreshRate;
 };
 
 struct vn_memory

code/vn_workspace.cpp

@@ -197,22 +197,19 @@ static void Workspace_BuildToolbar(workspace *Workspace, r32 dtForFrame)
                 
                 if(Workspace_BuildMenuItem(FontIcon_None, "Welcome", "").Clicked)
                 {
-                    workspace_view *NewView = Workspace_CreateNewView(Workspace_View_Startup, CurrentPanel);
+                    Workspace_CreateNewView(Workspace_View_Startup, CurrentPanel);
-                    DLLInsertLast(CurrentPanel->FirstView, CurrentPanel->LastView, NewView);
                     
                     Workspace->Menu = ToolbarMenu_None;
                 }
                 if(Workspace_BuildMenuItem(FontIcon_None, "Editor", "").Clicked)
                 {
-                    workspace_view *NewView = Workspace_CreateNewView(Workspace_View_Editor, CurrentPanel);
+                    Workspace_CreateNewView(Workspace_View_Editor, CurrentPanel);
-                    DLLInsertLast(CurrentPanel->FirstView, CurrentPanel->LastView, NewView);
                     
                     Workspace->Menu = ToolbarMenu_None;
                 }
                 if(Workspace_BuildMenuItem(FontIcon_Wrench, "Settings", "").Clicked)
                 {
-                    workspace_view *NewView = Workspace_CreateNewView(Workspace_View_Settings, CurrentPanel);
+                    Workspace_CreateNewView(Workspace_View_Settings, CurrentPanel);
-                    DLLInsertLast(CurrentPanel->FirstView, CurrentPanel->LastView, NewView);
                     
                     Workspace->Menu = ToolbarMenu_None;
                 }
@@ -712,8 +709,7 @@ static void Workspace_Init(workspace *Workspace)
     
     // sixten(TEMP): Add mock views.
     {
-        workspace_view *View1 = Workspace_CreateNewView(Workspace_View_Startup, Workspace->RootPanel);
+        Workspace_CreateNewView(Workspace_View_Startup, Workspace->RootPanel);
-        DLLInsertLast(Workspace->RootPanel->FirstView, Workspace->RootPanel->LastView, View1);
     }
     
     // sixten: Setup keybinds
@@ -725,8 +721,8 @@ static void Workspace_Init(workspace *Workspace)
     }
 }
 
-static void Workspace_Update(workspace *Workspace, vn_render_commands *RenderCommands,
+static void Workspace_Update(workspace *Workspace, vn_render_commands *RenderCommands, vn_input *Input,
-                             vn_input *Input, glyph_atlas *GlyphAtlas)
+                             glyph_atlas *GlyphAtlas)
 {
     Workspace->EventList = Input->EventList;
     

code/vn_workspace_view.cpp

@@ -15,6 +15,13 @@ inline workspace_view *Workspace_CreateNewView(workspace_view_type Type, workspa
         { View->Data = PushSize(&View->Arena, sizeof(workspace_view_settings)); } break;
     }
     
+    DLLInsertLast(Parent->FirstView, Parent->LastView, View);
+    
+    if(View->Parent)
+    {
+        Parent->CurrentView = View;
+    }
+    
     return(View);
 }
 
@@ -239,14 +246,18 @@ static void Workspace_BuildSettingsTabButton(workspace_view_settings *Settings,
     }
 }
 
-static void UI_DropdownSelection(char **Alternatives, s32 AlternativeCount, b32 *Open, s32 *Selected)
+static b32 UI_DropdownSelection(char **Alternatives, s32 AlternativeCount, b32 *Open, s32 *Selected)
 {
+    b32 Result = false;
+    
     UI_SetNextLayoutAxis(Axis2_X);
     UI_Parent(UI_MakeBoxF(0, ""))
     {
         UI_LabelF("Refresh Rate:");
         UI_Spacer(UI_Pixels(10, 1));
         
+        b32 ActiveInDropdown = false;
+        
         UI_SetNextWidth(UI_Pixels(200, 1));
         UI_SetNextCornerRadius(4);
         UI_SetNextLayoutAxis(Axis2_X);
@@ -263,35 +274,63 @@ static void UI_DropdownSelection(char **Alternatives, s32 AlternativeCount, b32
             UI_Width(UI_Pixels(25, 1)) UI_Font(Font_Icons) UI_LabelF("%U", FontIcon_DownDir);
         }
         
-        ui_signal Signal = UI_SignalFromBox(DropdownBox);
+        ui_signal DropdownSignal = UI_SignalFromBox(DropdownBox);
-        if(Signal.Pressed)
+        if(DropdownSignal.Pressed)
         {
-            *Open = true;
+            *Open = !(*Open);
         }
         
-        if(*Open)
+        if(AreEqual(UI_GetActive(), DropdownBox->Key))
+        {
+            ActiveInDropdown = true;
+        }
+        
+        r32 OpenTransition = AnimationCurve_AnimateValueF(*Open, 0, 0.175, "UI Dropdown %p%p", Alternatives, Open);
+        
+        if(OpenTransition > 0.1)
         {
             UI_Tooltip
             {
                 UI_SetNextFixedP(V2(DropdownBox->Rect.Min.x, DropdownBox->Rect.Max.y));
                 UI_SetNextCornerRadius(4);
                 UI_SetNextWidth(UI_Pixels(200, 1));
-                UI_SetNextHeight(UI_ChildrenSum(AnimationCurve_AnimateValueF(1, 0, 0.3, "UI Dropdown %p%p", Alternatives, Open), 1));
+                UI_SetNextHeight(UI_ChildrenSum(OpenTransition, 1));
                 UI_Parent(UI_MakeBoxF(UI_BoxFlag_Clip           |
                                       UI_BoxFlag_DrawDropShadow |
                                       UI_BoxFlag_FloatingX      |
                                       UI_BoxFlag_FloatingY, "Dropdown Contents"))
                 {
+                    UI_PushWidth(UI_Percent(1, 1));
+                    
                     for(s64 Index = 0;
-                        Index < AlternativeCount;
+                        Index < Round(AlternativeCount*OpenTransition);
                         ++Index)
                     {
-                        UI_Width(UI_Percent(1, 1)) UI_ButtonF(Alternatives[Index]);
+                        ui_signal ButtonSignal = UI_ButtonF(Alternatives[Index]);
+                        if(AreEqual(UI_GetActive(), ButtonSignal.Box->Key))
+                        {
+                            ActiveInDropdown = true;
+                        }
+                        
+                        if(ButtonSignal.Pressed)
+                        {
+                            *Selected = Index;
+                            Result = true;
+                        }
+                    }
+                    
+                    UI_PopWidth();
                 }
             }
         }
+        
+        if(!ActiveInDropdown && !AreEqual(UI_GetActive(), UI_EmptyKey()))
+        {
+            *Open = false;
         }
     }
+    
+    return(Result);
 }
 
 static void Workspace_BuildSettings(workspace *Workspace, workspace_view *View)
@@ -348,7 +387,11 @@ static void Workspace_BuildSettings(workspace *Workspace, workspace_view *View)
                 
                 persist b32 DropdownOpen = false;
                 persist s32 DropdownSelected = 0;
-                UI_DropdownSelection(Alternatives, ArrayCount(Alternatives), &DropdownOpen, &DropdownSelected);
+                
+                if(UI_DropdownSelection(Alternatives, ArrayCount(Alternatives), &DropdownOpen, &DropdownSelected))
+                {
+                    DropdownOpen = false;
+                }
                 
                 UI_Spacer(UI_Pixels(50, 1));
             }

code/win32_main.cpp

@@ -658,11 +658,18 @@ int WinMain(HINSTANCE Instance, HINSTANCE PreviousInstance, LPSTR CommandLine, i
                         LoadedCode.UpdateAndRender(&ThreadContext, &Memory, &Input, &RenderCommands);
                     }
                     
+                    b32 UseVSync = (Input.TargetRefreshRate == 0);
+                    wglSwapIntervalEXT(UseVSync);
+                    
                     OpenGL_EndFrame(&OpenGLContext, &RenderCommands);
                     wglSwapLayerBuffers(DeviceContext, WGL_SWAP_MAIN_PLANE);
                 }
                 
-                Win32_EnforceFrameRate(CurrentTime, 144.0);
+                b32 ShouldLimitFrameRate = (Input.TargetRefreshRate > 0);
+                if(ShouldLimitFrameRate)
+                {
+                    Win32_EnforceFrameRate(CurrentTime, Input.TargetRefreshRate);
+                }
             }
         }
         else

todo.txt

@@ -1,8 +1,6 @@
 This is a list of things that needs doing in a SUGGESTED order.
 
 * UI
- - Draggable panels
- - Fix weird grey draggable arena between panels at the headers.
  - Settings / Preferences view. (Including saving and loading of these settings/preferences)
 
 * Rendering