Merge branch 'master' into docking, incl conflict merge in BeginMenuBar() for ocornut#8267

# Conflicts:
#	imgui_widgets.cpp

Author: ocornut

docs/CHANGELOG.txt

@@ -54,7 +54,6 @@ Breaking changes:
 
 Other changes:
 
-- ImDrawList: texture baked storage for thick line reduced from ~64x64 to ~32x32. (#3245)
 - imgui_freetype: fixed issue where glyph advances would incorrectly be
   snapped to pixels. Effectively it would only be noticeable when hinting
   is disabled with ImGuiFreeTypeBuilderFlags_NoHinting, as hinting itself
@@ -68,11 +67,24 @@ Other changes:
 - Windows: legacy SetWindowFontScale() is properly inherited by nested child
   windows. Note that an upcoming major release should make this obsolete,
   but in the meanwhile it works better now. (#2701, #8138, #1018)
+- Windows, Style: Fixed small rendering issues with menu bar, resize grip and
+  scrollbar when using thick border sizes. (#8267, #7887)
 - ColorEdit, ColorPicker: Fixed alpha preview broken in 1.91.7. (#8336, #8241). [@PathogenDavid]
 - Tabs, Style: reworked selected overline rendering to better accommodate
   for rounded tabs. Reduced default thickness (style.TabBarOverlineSize),
   increased default rounding (style.TabRounding). (#8334) [@Kian738, @ocornut]
   styles as the current look is not right (but ImGuiCol_TabSelectedOverline stays the same).
+- Debug Tools: Tweaked font preview.
+- ImDrawList: texture baked storage for thick line reduced from ~64x64 to ~32x32. (#3245)
+- Fonts: IndexLookup[] table hold 16-bit values even in ImWchar32 mode,
+  as it accounts for number of glyphs in same font. This is favorable to
+  CalcTextSize() calls touching less memory.
+- Fonts: OversampleH/OversampleV defaults to 0 for automatic selection.
+   - OversampleH == 0 --> use 1 or 2 depending on font size and use of PixelSnapH.
+   - OversampleV == 0 --> always use 1.
+  This also
+- ImFontAtlas: made calling ClearFonts() call ClearInputData(), as calling
+  one without the other is never correct. (#8174, #6556, #6336, #4723)
 - Examples: DirectX12: Reduced number of frame in flight from 3 to 2 in
   provided example, to reduce latency.
 - Backends+Examples: Vulkan: better handle VK_SUBOPTIMAL_KHR being returned by
@@ -139,6 +151,8 @@ Other changes:
   the label (not only the highlight/frame) also spans all columns. This is
   useful for table rows where you know nothing else is submitted. (#8318, #3565)
   Obviously best used with ImGuiTableFlags_NoBordersInBodyUntilResize.
+- Selectable: Fixed horizontal label alignment when combined with using
+  ImGuiSelectableFlags_SpanAllColumns. (#8338)
 - Drags: Added ImGuiSliderFlags_NoSpeedTweaks flag to disable keyboard
   modifiers altering the tweak speed. Useful if you want to alter tweak speed
   yourself based on your own logic. (#8223)

docs/FONTS.md

@@ -110,8 +110,6 @@ ImGui::PopFont();
 **For advanced options create a ImFontConfig structure and pass it to the AddFont() function (it will be copied internally):**
 ```cpp
 ImFontConfig config;
-config.OversampleH = 2;
-config.OversampleV = 1;
 config.GlyphExtraSpacing.x = 1.0f;
 ImFont* font = io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels, &config);
 ```

imgui.cpp

@@ -7033,7 +7033,7 @@ static void ImGui::RenderWindowOuterBorders(ImGuiWindow* window)
     if (g.Style.FrameBorderSize > 0 && !(window->Flags & ImGuiWindowFlags_NoTitleBar) && !window->DockIsActive)
     {
         float y = window->Pos.y + window->TitleBarHeight - 1;
-        window->DrawList->AddLine(ImVec2(window->Pos.x + border_size, y), ImVec2(window->Pos.x + window->Size.x - border_size, y), border_col, g.Style.FrameBorderSize);
+        window->DrawList->AddLine(ImVec2(window->Pos.x + border_size * 0.5f, y), ImVec2(window->Pos.x + window->Size.x - border_size * 0.5f, y), border_col, g.Style.FrameBorderSize);
     }
 }
 
@@ -7130,9 +7130,9 @@ void ImGui::RenderWindowDecorations(ImGuiWindow* window, const ImRect& title_bar
         {
             ImRect menu_bar_rect = window->MenuBarRect();
             menu_bar_rect.ClipWith(window->Rect());  // Soft clipping, in particular child window don't have minimum size covering the menu bar so this is useful for them.
-            window->DrawList->AddRectFilled(menu_bar_rect.Min + ImVec2(window_border_size, 0), menu_bar_rect.Max - ImVec2(window_border_size, 0), GetColorU32(ImGuiCol_MenuBarBg), (flags & ImGuiWindowFlags_NoTitleBar) ? window_rounding : 0.0f, ImDrawFlags_RoundCornersTop);
+            window->DrawList->AddRectFilled(menu_bar_rect.Min, menu_bar_rect.Max, GetColorU32(ImGuiCol_MenuBarBg), (flags & ImGuiWindowFlags_NoTitleBar) ? window_rounding : 0.0f, ImDrawFlags_RoundCornersTop);
             if (style.FrameBorderSize > 0.0f && menu_bar_rect.Max.y < window->Pos.y + window->Size.y)
-                window->DrawList->AddLine(menu_bar_rect.GetBL(), menu_bar_rect.GetBR(), GetColorU32(ImGuiCol_Border), style.FrameBorderSize);
+                window->DrawList->AddLine(menu_bar_rect.GetBL() + ImVec2(window_border_size * 0.5f, 0.0f), menu_bar_rect.GetBR() - ImVec2(window_border_size * 0.5f, 0.0f), GetColorU32(ImGuiCol_Border), style.FrameBorderSize);
         }
 
         // Docking: Unhide tab bar (small triangle in the corner), drag from small triangle to quickly undock
@@ -7172,9 +7172,10 @@ void ImGui::RenderWindowDecorations(ImGuiWindow* window, const ImRect& title_bar
                     continue;
                 const ImGuiResizeGripDef& grip = resize_grip_def[resize_grip_n];
                 const ImVec2 corner = ImLerp(window->Pos, window->Pos + window->Size, grip.CornerPosN);
-                window->DrawList->PathLineTo(corner + grip.InnerDir * ((resize_grip_n & 1) ? ImVec2(window_border_size, resize_grip_draw_size) : ImVec2(resize_grip_draw_size, window_border_size)));
-                window->DrawList->PathLineTo(corner + grip.InnerDir * ((resize_grip_n & 1) ? ImVec2(resize_grip_draw_size, window_border_size) : ImVec2(window_border_size, resize_grip_draw_size)));
-                window->DrawList->PathArcToFast(ImVec2(corner.x + grip.InnerDir.x * (window_rounding + window_border_size), corner.y + grip.InnerDir.y * (window_rounding + window_border_size)), window_rounding, grip.AngleMin12, grip.AngleMax12);
+                const float border_inner = IM_ROUND(window_border_size * 0.5f);
+                window->DrawList->PathLineTo(corner + grip.InnerDir * ((resize_grip_n & 1) ? ImVec2(border_inner, resize_grip_draw_size) : ImVec2(resize_grip_draw_size, border_inner)));
+                window->DrawList->PathLineTo(corner + grip.InnerDir * ((resize_grip_n & 1) ? ImVec2(resize_grip_draw_size, border_inner) : ImVec2(border_inner, resize_grip_draw_size)));
+                window->DrawList->PathArcToFast(ImVec2(corner.x + grip.InnerDir.x * (window_rounding + border_inner), corner.y + grip.InnerDir.y * (window_rounding + border_inner)), window_rounding, grip.AngleMin12, grip.AngleMax12);
                 window->DrawList->PathFillConvex(col);
             }
         }
@@ -21986,18 +21987,24 @@ void ImGui::DebugNodeDrawCmdShowMeshAndBoundingBox(ImDrawList* out_draw_list, co
 // [DEBUG] Display details for a single font, called by ShowStyleEditor().
 void ImGui::DebugNodeFont(ImFont* font)
 {
-    bool opened = TreeNode(font, "Font: \"%s\"\n%.2f px, %d glyphs, %d file(s)",
+    bool opened = TreeNode(font, "Font: \"%s\": %.2f px, %d glyphs, %d sources(s)",
         font->ConfigData ? font->ConfigData[0].Name : "", font->FontSize, font->Glyphs.Size, font->ConfigDataCount);
-    SameLine();
-    if (SmallButton("Set as default"))
-        GetIO().FontDefault = font;
-    if (!opened)
-        return;
 
     // Display preview text
+    if (!opened)
+        Indent();
+    Indent();
     PushFont(font);
     Text("The quick brown fox jumps over the lazy dog");
     PopFont();
+    if (!opened)
+    {
+        Unindent();
+        Unindent();
+        return;
+    }
+    if (SmallButton("Set as default"))
+        GetIO().FontDefault = font;
 
     // Display details
     SetNextItemWidth(GetFontSize() * 8);
@@ -22016,62 +22023,69 @@ void ImGui::DebugNodeFont(ImFont* font)
     Text("Texture Area: about %d px ~%dx%d px", font->MetricsTotalSurface, surface_sqrt, surface_sqrt);
     for (int config_i = 0; config_i < font->ConfigDataCount; config_i++)
         if (font->ConfigData)
-            if (const ImFontConfig* cfg = &font->ConfigData[config_i])
-                BulletText("Input %d: \'%s\', Oversample: (%d,%d), PixelSnapH: %d, Offset: (%.1f,%.1f)",
-                    config_i, cfg->Name, cfg->OversampleH, cfg->OversampleV, cfg->PixelSnapH, cfg->GlyphOffset.x, cfg->GlyphOffset.y);
+        {
+            const ImFontConfig* cfg = &font->ConfigData[config_i];
+            int oversample_h, oversample_v;
+            ImFontAtlasBuildGetOversampleFactors(cfg, &oversample_h, &oversample_v);
+            BulletText("Input %d: \'%s\', Oversample: (%d=>%d,%d=>%d), PixelSnapH: %d, Offset: (%.1f,%.1f)",
+                config_i, cfg->Name, cfg->OversampleH, oversample_h, cfg->OversampleV, oversample_v, cfg->PixelSnapH, cfg->GlyphOffset.x, cfg->GlyphOffset.y);
+        }
 
     // Display all glyphs of the fonts in separate pages of 256 characters
-    if (TreeNode("Glyphs", "Glyphs (%d)", font->Glyphs.Size))
-    {
-        ImDrawList* draw_list = GetWindowDrawList();
-        const ImU32 glyph_col = GetColorU32(ImGuiCol_Text);
-        const float cell_size = font->FontSize * 1;
-        const float cell_spacing = GetStyle().ItemSpacing.y;
-        for (unsigned int base = 0; base <= IM_UNICODE_CODEPOINT_MAX; base += 256)
-        {
-            // Skip ahead if a large bunch of glyphs are not present in the font (test in chunks of 4k)
-            // This is only a small optimization to reduce the number of iterations when IM_UNICODE_MAX_CODEPOINT
-            // is large // (if ImWchar==ImWchar32 we will do at least about 272 queries here)
-            if (!(base & 8191) && font->IsGlyphRangeUnused(base, base + 8191))
+    {
+        if (TreeNode("Glyphs", "Glyphs (%d)", font->Glyphs.Size))
+        {
+            ImDrawList* draw_list = GetWindowDrawList();
+            const ImU32 glyph_col = GetColorU32(ImGuiCol_Text);
+            const float cell_size = font->FontSize * 1;
+            const float cell_spacing = GetStyle().ItemSpacing.y;
+            for (unsigned int base = 0; base <= IM_UNICODE_CODEPOINT_MAX; base += 256)
             {
-                base += 8192 - 256;
-                continue;
-            }
-
-            int count = 0;
-            for (unsigned int n = 0; n < 256; n++)
-                if (font->FindGlyphNoFallback((ImWchar)(base + n)))
-                    count++;
-            if (count <= 0)
-                continue;
-            if (!TreeNode((void*)(intptr_t)base, "U+%04X..U+%04X (%d %s)", base, base + 255, count, count > 1 ? "glyphs" : "glyph"))
-                continue;
+                // Skip ahead if a large bunch of glyphs are not present in the font (test in chunks of 4k)
+                // This is only a small optimization to reduce the number of iterations when IM_UNICODE_MAX_CODEPOINT
+                // is large // (if ImWchar==ImWchar32 we will do at least about 272 queries here)
+                if (!(base & 8191) && font->IsGlyphRangeUnused(base, base + 8191))
+                {
+                    base += 8192 - 256;
+                    continue;
+                }
 
-            // Draw a 16x16 grid of glyphs
-            ImVec2 base_pos = GetCursorScreenPos();
-            for (unsigned int n = 0; n < 256; n++)
-            {
-                // We use ImFont::RenderChar as a shortcut because we don't have UTF-8 conversion functions
-                // available here and thus cannot easily generate a zero-terminated UTF-8 encoded string.
-                ImVec2 cell_p1(base_pos.x + (n % 16) * (cell_size + cell_spacing), base_pos.y + (n / 16) * (cell_size + cell_spacing));
-                ImVec2 cell_p2(cell_p1.x + cell_size, cell_p1.y + cell_size);
-                const ImFontGlyph* glyph = font->FindGlyphNoFallback((ImWchar)(base + n));
-                draw_list->AddRect(cell_p1, cell_p2, glyph ? IM_COL32(255, 255, 255, 100) : IM_COL32(255, 255, 255, 50));
-                if (!glyph)
+                int count = 0;
+                for (unsigned int n = 0; n < 256; n++)
+                    if (font->FindGlyphNoFallback((ImWchar)(base + n)))
+                        count++;
+                if (count <= 0)
                     continue;
-                font->RenderChar(draw_list, cell_size, cell_p1, glyph_col, (ImWchar)(base + n));
-                if (IsMouseHoveringRect(cell_p1, cell_p2) && BeginTooltip())
+                if (!TreeNode((void*)(intptr_t)base, "U+%04X..U+%04X (%d %s)", base, base + 255, count, count > 1 ? "glyphs" : "glyph"))
+                    continue;
+
+                // Draw a 16x16 grid of glyphs
+                ImVec2 base_pos = GetCursorScreenPos();
+                for (unsigned int n = 0; n < 256; n++)
                 {
-                    DebugNodeFontGlyph(font, glyph);
-                    EndTooltip();
+                    // We use ImFont::RenderChar as a shortcut because we don't have UTF-8 conversion functions
+                    // available here and thus cannot easily generate a zero-terminated UTF-8 encoded string.
+                    ImVec2 cell_p1(base_pos.x + (n % 16) * (cell_size + cell_spacing), base_pos.y + (n / 16) * (cell_size + cell_spacing));
+                    ImVec2 cell_p2(cell_p1.x + cell_size, cell_p1.y + cell_size);
+                    const ImFontGlyph* glyph = font->FindGlyphNoFallback((ImWchar)(base + n));
+                    draw_list->AddRect(cell_p1, cell_p2, glyph ? IM_COL32(255, 255, 255, 100) : IM_COL32(255, 255, 255, 50));
+                    if (!glyph)
+                        continue;
+                    font->RenderChar(draw_list, cell_size, cell_p1, glyph_col, (ImWchar)(base + n));
+                    if (IsMouseHoveringRect(cell_p1, cell_p2) && BeginTooltip())
+                    {
+                        DebugNodeFontGlyph(font, glyph);
+                        EndTooltip();
+                    }
                 }
+                Dummy(ImVec2((cell_size + cell_spacing) * 16, (cell_size + cell_spacing) * 16));
+                TreePop();
             }
-            Dummy(ImVec2((cell_size + cell_spacing) * 16, (cell_size + cell_spacing) * 16));
             TreePop();
         }
-        TreePop();
     }
     TreePop();
+    Unindent();
 }
 
 void ImGui::DebugNodeFontGlyph(ImFont*, const ImFontGlyph* glyph)