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

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# Conflicts:
#	imgui.cpp
#	imgui_draw.cpp
This commit is contained in:
ocornut
2022-02-08 12:22:46 +01:00
parent 1ee252772a
commit aa86800092
4 changed files with 33 additions and 36 deletions
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43
imgui.cpp
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@ -3249,6 +3249,34 @@ 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);
ImFontAtlas* font_atlas = g.DrawListSharedData.Font->ContainerAtlas;
for (int n = 0; n < g.Viewports.Size; n++)
{
// We scale cursor with current viewport/monitor, however Windows 10 for its own hardware cursor seems to be using a different scale factor.
ImVec2 offset, size, uv[4];
if (!font_atlas->GetMouseCursorTexData(mouse_cursor, &offset, &size, &uv[0], &uv[2]))
continue;
ImGuiViewportP* viewport = g.Viewports[n];
const ImVec2 pos = base_pos - offset;
const float scale = base_scale * viewport->DpiScale;
if (!viewport->GetMainRect().Overlaps(ImRect(pos, pos + ImVec2(size.x + 2, size.y + 2) * scale)))
continue;
ImDrawList* draw_list = GetForegroundDrawList(viewport);
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!)
//-----------------------------------------------------------------------------
@ -5129,9 +5157,9 @@ void ImGui::Render()
if (first_render_of_frame)
RenderDimmedBackgrounds();
ImVec2 mouse_cursor_offset, mouse_cursor_size, mouse_cursor_uv[4];
if (g.IO.MouseDrawCursor && g.MouseCursor != ImGuiMouseCursor_None)
g.IO.Fonts->GetMouseCursorTexData(g.MouseCursor, &mouse_cursor_offset, &mouse_cursor_size, &mouse_cursor_uv[0], &mouse_cursor_uv[2]);
// 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;
@ -5140,15 +5168,6 @@ void ImGui::Render()
ImGuiViewportP* viewport = g.Viewports[n];
viewport->DrawDataBuilder.FlattenIntoSingleLayer();
// Draw software mouse cursor if requested by io.MouseDrawCursor flag
// (note we scale cursor by current viewport/monitor, however Windows 10 for its own hardware cursor seems to be using a different scale factor)
if (mouse_cursor_size.x > 0.0f && mouse_cursor_size.y > 0.0f && first_render_of_frame)
{
float scale = g.Style.MouseCursorScale * viewport->DpiScale;
if (viewport->GetMainRect().Overlaps(ImRect(g.IO.MousePos, g.IO.MousePos + ImVec2(mouse_cursor_size.x + 2, mouse_cursor_size.y + 2) * scale)))
RenderMouseCursor(GetForegroundDrawList(viewport), g.IO.MousePos, scale, 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));