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InputText: Added a line index. Refactored cursor and selection rendering, now simpler, easier to reason about, and faster. (#3237, #952, #1062, #7363)

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ocornut
2025-09-11 19:05:26 +02:00
parent 67085d732a
commit 1e52e7b90c
4 changed files with 180 additions and 185 deletions
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11
imgui.cpp
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@@ -3074,6 +3074,7 @@ void ImGuiTextBuffer::appendfv(const char* fmt, va_list args)
va_end(args_copy);
}
IM_MSVC_RUNTIME_CHECKS_OFF
void ImGuiTextIndex::append(const char* base, int old_size, int new_size)
{
IM_ASSERT(old_size >= 0 && new_size >= old_size && new_size >= EndOffset);
@@ -3087,6 +3088,7 @@ void ImGuiTextIndex::append(const char* base, int old_size, int new_size)
Offsets.push_back((int)(intptr_t)(p - base));
EndOffset = ImMax(EndOffset, new_size);
}
IM_MSVC_RUNTIME_CHECKS_RESTORE
//-----------------------------------------------------------------------------
// [SECTION] ImGuiListClipper
@@ -3414,6 +3416,13 @@ bool ImGuiListClipper::Step()
return ret;
}
// Generic helper, equivalent to old ImGui::CalcListClipping() but statelesss
void ImGui::CalcClipRectVisibleItemsY(const ImRect& clip_rect, const ImVec2& pos, float items_height, int* out_visible_start, int* out_visible_end)
{
*out_visible_start = ImMax((int)((clip_rect.Min.y - pos.y) / items_height), 0);
*out_visible_end = ImMax((int)ImCeil((clip_rect.Max.y - pos.y) / items_height), *out_visible_start);
}
//-----------------------------------------------------------------------------
// [SECTION] STYLING
//-----------------------------------------------------------------------------
@@ -4374,6 +4383,7 @@ void ImGui::Shutdown()
g.ClipboardHandlerData.clear();
g.MenusIdSubmittedThisFrame.clear();
g.InputTextState.ClearFreeMemory();
g.InputTextLineIndex.clear();
g.InputTextDeactivatedState.ClearFreeMemory();
g.SettingsWindows.clear();
@@ -4489,6 +4499,7 @@ void ImGui::GcCompactTransientMiscBuffers()
ImGuiContext& g = *GImGui;
g.ItemFlagsStack.clear();
g.GroupStack.clear();
g.InputTextLineIndex.clear();
g.MultiSelectTempDataStacked = 0;
g.MultiSelectTempData.clear_destruct();
TableGcCompactSettings();