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Added GetBackgroundDrawList() helper to quickly get access to a ImDrawList that will be rendered behind every other windows. (#2391)

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omar
2019-03-04 16:10:51 +01:00
parent beb3062dc5
commit 96b13760d4
4 changed files with 25 additions and 4 deletions
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5
imgui_internal.h
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@ -888,6 +888,7 @@ struct ImGuiContext
ImDrawData DrawData; // Main ImDrawData instance to pass render information to the user
ImDrawDataBuilder DrawDataBuilder;
float DimBgRatio; // 0.0..1.0 animation when fading in a dimming background (for modal window and CTRL+TAB list)
ImDrawList BackgroundDrawList;
ImDrawList OverlayDrawList; // Optional software render of mouse cursors, if io.MouseDrawCursor is set + a few debug overlays
ImGuiMouseCursor MouseCursor;
@ -962,7 +963,7 @@ struct ImGuiContext
int WantTextInputNextFrame;
char TempBuffer[1024*3+1]; // Temporary text buffer
ImGuiContext(ImFontAtlas* shared_font_atlas) : OverlayDrawList(NULL)
ImGuiContext(ImFontAtlas* shared_font_atlas) : BackgroundDrawList(NULL), OverlayDrawList(NULL)
{
Initialized = false;
FrameScopeActive = FrameScopePushedImplicitWindow = false;
@ -1030,6 +1031,8 @@ struct ImGuiContext
NavMoveDir = NavMoveDirLast = NavMoveClipDir = ImGuiDir_None;
DimBgRatio = 0.0f;
BackgroundDrawList._Data = &DrawListSharedData;
BackgroundDrawList._OwnerName = "##Background"; // Give it a name for debugging
OverlayDrawList._Data = &DrawListSharedData;
OverlayDrawList._OwnerName = "##Overlay"; // Give it a name for debugging
MouseCursor = ImGuiMouseCursor_Arrow;