Fixed default proportional item width lagging by one frame on resize + miscellaneous minor tweaks.

CHANGELOG.txt

@@ -48,6 +48,7 @@ Other Changes:
 (IN PROGRESS, WILL ADD TO THIS LIST AS WE WORK ON 1.61)
 
 - Settings: Fixed saving an empty .ini file if CreateContext/DestroyContext are called without a single call to NewFrame(). (#1741)
+- Window: Fixed default proportional item width lagging by one frame on resize.
 
 -----------------------------------------------------------------------
 

imgui.cpp

@@ -4157,13 +4157,9 @@ void ImGui::LogText(const char* fmt, ...)
     va_list args;
     va_start(args, fmt);
     if (g.LogFile)
-    {
         vfprintf(g.LogFile, fmt, args);
-    }
     else
-    {
         g.LogClipboard->appendfv(fmt, args);
-    }
     va_end(args);
 }
 
@@ -4239,8 +4235,7 @@ void ImGui::RenderText(ImVec2 pos, const char* text, const char* text_end, bool
         text_display_end = text_end;
     }
 
-    const int text_len = (int)(text_display_end - text);
-    if (text_len > 0)
+    if (text != text_display_end)
     {
         window->DrawList->AddText(g.Font, g.FontSize, pos, GetColorU32(ImGuiCol_Text), text, text_display_end);
         if (g.LogEnabled)
@@ -4256,8 +4251,7 @@ void ImGui::RenderTextWrapped(ImVec2 pos, const char* text, const char* text_end
     if (!text_end)
         text_end = text + strlen(text); // FIXME-OPT
 
-    const int text_len = (int)(text_end - text);
-    if (text_len > 0)
+    if (text != text_end)
     {
         window->DrawList->AddText(g.Font, g.FontSize, pos, GetColorU32(ImGuiCol_Text), text, text_end, wrap_width);
         if (g.LogEnabled)
@@ -5935,12 +5929,6 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
         }
         window->Pos = ImFloor(window->PosFloat);
 
-        // Default item width. Make it proportional to window size if window manually resizes
-        if (window->Size.x > 0.0f && !(flags & ImGuiWindowFlags_Tooltip) && !(flags & ImGuiWindowFlags_AlwaysAutoResize))
-            window->ItemWidthDefault = (float)(int)(window->Size.x * 0.65f);
-        else
-            window->ItemWidthDefault = (float)(int)(g.FontSize * 16.0f);
-
         // Prepare for focus requests
         window->FocusIdxAllRequestCurrent = (window->FocusIdxAllRequestNext == INT_MAX || window->FocusIdxAllCounter == -1) ? INT_MAX : (window->FocusIdxAllRequestNext + (window->FocusIdxAllCounter+1)) % (window->FocusIdxAllCounter+1);
         window->FocusIdxTabRequestCurrent = (window->FocusIdxTabRequestNext == INT_MAX || window->FocusIdxTabCounter == -1) ? INT_MAX : (window->FocusIdxTabRequestNext + (window->FocusIdxTabCounter+1)) % (window->FocusIdxTabCounter+1);
@@ -5965,6 +5953,12 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
         if (!window->Collapsed)
             UpdateManualResize(window, size_auto_fit, &border_held, resize_grip_count, &resize_grip_col[0]);
 
+        // Default item width. Make it proportional to window size if window manually resizes
+        if (window->Size.x > 0.0f && !(flags & ImGuiWindowFlags_Tooltip) && !(flags & ImGuiWindowFlags_AlwaysAutoResize))
+            window->ItemWidthDefault = (float)(int)(window->Size.x * 0.65f);
+        else
+            window->ItemWidthDefault = (float)(int)(g.FontSize * 16.0f);
+
         // DRAWING
 
         // Setup draw list and outer clipping rectangle