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ImDrawList: Store initial flags for the frame in ImDrawListSharedData, reducing code duplication in setting up the flags.

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This commit is contained in:
omar 2019-05-29 12:52:29 +02:00
parent cb7ba60d3f
commit 40b9e5e0b4
4 changed files with 8 additions and 10 deletions
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4
imgui.cpp
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@ -3502,16 +3502,15 @@ void ImGui::NewFrame()
IM_ASSERT(g.Font->IsLoaded());
g.DrawListSharedData.ClipRectFullscreen = ImVec4(0.0f, 0.0f, g.IO.DisplaySize.x, g.IO.DisplaySize.y);
g.DrawListSharedData.CurveTessellationTol = g.Style.CurveTessellationTol;
g.DrawListSharedData.InitialFlags = (g.Style.AntiAliasedLines ? ImDrawListFlags_AntiAliasedLines : 0) | (g.Style.AntiAliasedFill ? ImDrawListFlags_AntiAliasedFill : 0);
g.BackgroundDrawList.Clear();
g.BackgroundDrawList.PushTextureID(g.IO.Fonts->TexID);
g.BackgroundDrawList.PushClipRectFullScreen();
g.BackgroundDrawList.Flags = (g.Style.AntiAliasedLines ? ImDrawListFlags_AntiAliasedLines : 0) | (g.Style.AntiAliasedFill ? ImDrawListFlags_AntiAliasedFill : 0);
g.ForegroundDrawList.Clear();
g.ForegroundDrawList.PushTextureID(g.IO.Fonts->TexID);
g.ForegroundDrawList.PushClipRectFullScreen();
g.ForegroundDrawList.Flags = (g.Style.AntiAliasedLines ? ImDrawListFlags_AntiAliasedLines : 0) | (g.Style.AntiAliasedFill ? ImDrawListFlags_AntiAliasedFill : 0);
// Mark rendering data as invalid to prevent user who may have a handle on it to use it.
g.DrawData.Clear();
@ -5529,7 +5528,6 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
// Setup draw list and outer clipping rectangle
window->DrawList->Clear();
window->DrawList->Flags = (g.Style.AntiAliasedLines ? ImDrawListFlags_AntiAliasedLines : 0) | (g.Style.AntiAliasedFill ? ImDrawListFlags_AntiAliasedFill : 0);
window->DrawList->PushTextureID(g.Font->ContainerAtlas->TexID);
PushClipRect(host_rect.Min, host_rect.Max, false);

6
imgui.h
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@ -218,9 +218,9 @@ namespace ImGui
IMGUI_API ImDrawData* GetDrawData(); // valid after Render() and until the next call to NewFrame(). this is what you have to render.
// Demo, Debug, Information
IMGUI_API void ShowDemoWindow(bool* p_open = NULL); // create demo/test window (previously called ShowTestWindow). demonstrate most ImGui features. call this to learn about the library! try to make it always available in your application!
IMGUI_API void ShowAboutWindow(bool* p_open = NULL); // create about window. display Dear ImGui version, credits and build/system information.
IMGUI_API void ShowMetricsWindow(bool* p_open = NULL); // create metrics/debug window. display Dear ImGui internals: draw commands (with individual draw calls and vertices), window list, basic internal state, etc.
IMGUI_API void ShowDemoWindow(bool* p_open = NULL); // create Demo window (previously called ShowTestWindow). demonstrate most ImGui features. call this to learn about the library! try to make it always available in your application!
IMGUI_API void ShowAboutWindow(bool* p_open = NULL); // create About window. display Dear ImGui version, credits and build/system information.
IMGUI_API void ShowMetricsWindow(bool* p_open = NULL); // create Metrics/Debug window. display Dear ImGui internals: draw commands (with individual draw calls and vertices), window list, basic internal state, etc.
IMGUI_API void ShowStyleEditor(ImGuiStyle* ref = NULL); // add style editor block (not a window). you can pass in a reference ImGuiStyle structure to compare to, revert to and save to (else it uses the default style)
IMGUI_API bool ShowStyleSelector(const char* label); // add style selector block (not a window), essentially a combo listing the default styles.
IMGUI_API void ShowFontSelector(const char* label); // add font selector block (not a window), essentially a combo listing the loaded fonts.

3
imgui_draw.cpp
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@ -348,6 +348,7 @@ ImDrawListSharedData::ImDrawListSharedData()
FontSize = 0.0f;
CurveTessellationTol = 0.0f;
ClipRectFullscreen = ImVec4(-8192.0f, -8192.0f, +8192.0f, +8192.0f);
InitialFlags = ImDrawListFlags_None;
// Const data
for (int i = 0; i < IM_ARRAYSIZE(CircleVtx12); i++)
@ -362,7 +363,7 @@ void ImDrawList::Clear()
CmdBuffer.resize(0);
IdxBuffer.resize(0);
VtxBuffer.resize(0);
Flags = ImDrawListFlags_AntiAliasedLines | ImDrawListFlags_AntiAliasedFill;
Flags = _Data->InitialFlags;
_VtxCurrentIdx = 0;
_VtxWritePtr = NULL;
_IdxWritePtr = NULL;

5
imgui_internal.h
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@ -731,6 +731,7 @@ struct IMGUI_API ImDrawListSharedData
float FontSize; // Current/default font size (optional, for simplified AddText overload)
float CurveTessellationTol;
ImVec4 ClipRectFullscreen; // Value for PushClipRectFullscreen()
ImDrawListFlags InitialFlags; // Initial flags at the beginning of the frame (it is possible to alter flags on a per-drawlist basis afterwards)
// Const data
// FIXME: Bake rounded corners fill/borders in atlas
@ -1034,7 +1035,7 @@ struct ImGuiContext
int WantTextInputNextFrame;
char TempBuffer[1024*3+1]; // Temporary text buffer
ImGuiContext(ImFontAtlas* shared_font_atlas) : BackgroundDrawList(NULL), ForegroundDrawList(NULL)
ImGuiContext(ImFontAtlas* shared_font_atlas) : BackgroundDrawList(&DrawListSharedData), ForegroundDrawList(&DrawListSharedData)
{
Initialized = false;
FrameScopeActive = FrameScopePushedImplicitWindow = false;
@ -1109,9 +1110,7 @@ struct ImGuiContext
FocusTabPressed = false;
DimBgRatio = 0.0f;
BackgroundDrawList._Data = &DrawListSharedData;
BackgroundDrawList._OwnerName = "##Background"; // Give it a name for debugging
ForegroundDrawList._Data = &DrawListSharedData;
ForegroundDrawList._OwnerName = "##Foreground"; // Give it a name for debugging
MouseCursor = ImGuiMouseCursor_Arrow;