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ImDrawData: added ScaleClipRects() helper (#287)

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ocornut 2015-08-27 18:45:43 +01:00
parent 8b225923f8
commit a36001212f
2 changed files with 15 additions and 0 deletions
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1
imgui.h
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@ -1142,6 +1142,7 @@ struct ImDrawData
// Functions
void DeIndexAllBuffers(); // For backward compatibility: convert all buffers from indexed to de-indexed, in case you cannot render indexed. Note: this is slow and most likely a waste of resources. Always prefer indexed rendering!
void ScaleClipRects(const ImVec2& sc); // Helper to scale the ClipRect field of each ImDrawCmd. Use if your final output buffer is at a different scale than ImGui expects, or if there is a difference between your window resolution and framebuffer resolution.
};
struct ImFontConfig

14
imgui_draw.cpp
View File

@ -833,6 +833,20 @@ void ImDrawData::DeIndexAllBuffers()
}
}
// Helper to scale the ClipRect field of each ImDrawCmd. Use if your final output buffer is at a different scale than ImGui expects, or if there is a difference between your window resolution and framebuffer resolution.
void ImDrawData::ScaleClipRects(const ImVec2& scale)
{
for (int i = 0; i < CmdListsCount; i++)
{
ImDrawList* cmd_list = CmdLists[i];
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
ImDrawCmd* cmd = &cmd_list->CmdBuffer[cmd_i];
cmd->ClipRect = ImVec4(cmd->ClipRect.x * scale.x, cmd->ClipRect.y * scale.y, cmd->ClipRect.z * scale.x, cmd->ClipRect.w * scale.y);
}
}
}
//-----------------------------------------------------------------------------
// ImFontAtlias
//-----------------------------------------------------------------------------