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ImDrawList: added InitialFringeScale in ImDrawListSharedData. Default to 1.0f.

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This is to allow some DPI mods with less changes. Only the initial value in SetupDrawListSharedData() will need change.
This commit is contained in:
ocornut
2025-02-14 21:39:45 +01:00
parent 2860d7ba05
commit 78ec1272e9
4 changed files with 6 additions and 3 deletions
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1
imgui.cpp
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@@ -5136,6 +5136,7 @@ static void SetupDrawListSharedData()
g.DrawListSharedData.InitialFlags |= ImDrawListFlags_AntiAliasedFill;
if (g.IO.BackendFlags & ImGuiBackendFlags_RendererHasVtxOffset)
g.DrawListSharedData.InitialFlags |= ImDrawListFlags_AllowVtxOffset;
g.DrawListSharedData.InitialFringeScale = 1.0f; // FIXME-DPI: Change this for some DPI scaling experiments.
}
void ImGui::NewFrame()

3
imgui_draw.cpp
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@@ -374,6 +374,7 @@ void ImGui::StyleColorsLight(ImGuiStyle* dst)
ImDrawListSharedData::ImDrawListSharedData()
{
memset(this, 0, sizeof(*this));
InitialFringeScale = 1.0f;
for (int i = 0; i < IM_ARRAYSIZE(ArcFastVtx); i++)
{
const float a = ((float)i * 2 * IM_PI) / (float)IM_ARRAYSIZE(ArcFastVtx);
@@ -433,7 +434,7 @@ void ImDrawList::_ResetForNewFrame()
_Path.resize(0);
_Splitter.Clear();
CmdBuffer.push_back(ImDrawCmd());
_FringeScale = 1.0f;
_FringeScale = _Data->InitialFringeScale;
}
void ImDrawList::_ClearFreeMemory()

3
imgui_internal.h
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@@ -786,8 +786,9 @@ struct IMGUI_API ImDrawListSharedData
float FontScale; // Current/default font scale (== FontSize / Font->FontSize)
float CurveTessellationTol; // Tessellation tolerance when using PathBezierCurveTo()
float CircleSegmentMaxError; // Number of circle segments to use per pixel of radius for AddCircle() etc
ImVec4 ClipRectFullscreen; // Value for PushClipRectFullscreen()
float InitialFringeScale; // Initial scale to apply to AA fringe
ImDrawListFlags InitialFlags; // Initial flags at the beginning of the frame (it is possible to alter flags on a per-drawlist basis afterwards)
ImVec4 ClipRectFullscreen; // Value for PushClipRectFullscreen()
ImVector<ImVec2> TempBuffer; // Temporary write buffer
// Lookup tables

2
imgui_widgets.cpp
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@@ -913,7 +913,7 @@ ImRect ImGui::GetWindowScrollbarRect(ImGuiWindow* window, ImGuiAxis axis)
const ImRect outer_rect = window->Rect();
const ImRect inner_rect = window->InnerRect;
const float scrollbar_size = window->ScrollbarSizes[axis ^ 1]; // (ScrollbarSizes.x = width of Y scrollbar; ScrollbarSizes.y = height of X scrollbar)
IM_ASSERT(scrollbar_size > 0.0f);
IM_ASSERT(scrollbar_size >= 0.0f);
const float border_size = IM_ROUND(window->WindowBorderSize * 0.5f);
const float border_top = (window->Flags & ImGuiWindowFlags_MenuBar) ? IM_ROUND(g.Style.FrameBorderSize * 0.5f) : 0.0f;
if (axis == ImGuiAxis_X)