Drezil/imgui
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Internals: rework RenderMouseCursor() signature so we can use it in docking branch more naturally.

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This commit is contained in:
ocornut
2022-02-08 12:22:46 +01:00
parent c71a50deb5
commit 97b1abd6dd
4 changed files with 32 additions and 28 deletions
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34
imgui.cpp
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@ -3193,6 +3193,32 @@ void ImGui::RenderNavHighlight(const ImRect& bb, ImGuiID id, ImGuiNavHighlightFl
}
}
void ImGui::RenderMouseCursor(ImVec2 base_pos, float base_scale, ImGuiMouseCursor mouse_cursor, ImU32 col_fill, ImU32 col_border, ImU32 col_shadow)
{
ImGuiContext& g = *GImGui;
IM_ASSERT(mouse_cursor > ImGuiMouseCursor_None && mouse_cursor < ImGuiMouseCursor_COUNT);
for (int n = 0; n < g.Viewports.Size; n++)
{
ImGuiViewportP* viewport = g.Viewports[n];
ImDrawList* draw_list = GetForegroundDrawList(viewport);
ImFontAtlas* font_atlas = draw_list->_Data->Font->ContainerAtlas;
ImVec2 offset, size, uv[4];
if (font_atlas->GetMouseCursorTexData(mouse_cursor, &offset, &size, &uv[0], &uv[2]))
{
const ImVec2 pos = base_pos - offset;
const float scale = base_scale;
ImTextureID tex_id = font_atlas->TexID;
draw_list->PushTextureID(tex_id);
draw_list->AddImage(tex_id, pos + ImVec2(1, 0) * scale, pos + (ImVec2(1, 0) + size) * scale, uv[2], uv[3], col_shadow);
draw_list->AddImage(tex_id, pos + ImVec2(2, 0) * scale, pos + (ImVec2(2, 0) + size) * scale, uv[2], uv[3], col_shadow);
draw_list->AddImage(tex_id, pos, pos + size * scale, uv[2], uv[3], col_border);
draw_list->AddImage(tex_id, pos, pos + size * scale, uv[0], uv[1], col_fill);
draw_list->PopTextureID();
}
}
}
//-----------------------------------------------------------------------------
// [SECTION] MAIN CODE (most of the code! lots of stuff, needs tidying up!)
//-----------------------------------------------------------------------------
@ -4888,6 +4914,10 @@ void ImGui::Render()
if (windows_to_render_top_most[n] && IsWindowActiveAndVisible(windows_to_render_top_most[n])) // NavWindowingTarget is always temporarily displayed as the top-most window
AddRootWindowToDrawData(windows_to_render_top_most[n]);
// Draw software mouse cursor if requested by io.MouseDrawCursor flag
if (g.IO.MouseDrawCursor && first_render_of_frame && g.MouseCursor != ImGuiMouseCursor_None)
RenderMouseCursor(g.IO.MousePos, g.Style.MouseCursorScale, g.MouseCursor, IM_COL32_WHITE, IM_COL32_BLACK, IM_COL32(0, 0, 0, 48));
// Setup ImDrawData structures for end-user
g.IO.MetricsRenderVertices = g.IO.MetricsRenderIndices = 0;
for (int n = 0; n < g.Viewports.Size; n++)
@ -4895,10 +4925,6 @@ void ImGui::Render()
ImGuiViewportP* viewport = g.Viewports[n];
viewport->DrawDataBuilder.FlattenIntoSingleLayer();
// Draw software mouse cursor if requested by io.MouseDrawCursor flag
if (g.IO.MouseDrawCursor && first_render_of_frame)
RenderMouseCursor(GetForegroundDrawList(viewport), g.IO.MousePos, g.Style.MouseCursorScale, g.MouseCursor, IM_COL32_WHITE, IM_COL32_BLACK, IM_COL32(0, 0, 0, 48));
// Add foreground ImDrawList (for each active viewport)
if (viewport->DrawLists[1] != NULL)
AddDrawListToDrawData(&viewport->DrawDataBuilder.Layers[0], GetForegroundDrawList(viewport));