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Added modal window darkening of previous windows (#249)

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This commit is contained in:
ocornut 2015-06-23 12:34:15 -06:00
parent 8c790a3234
commit fe17f6e735
2 changed files with 20 additions and 0 deletions
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19
imgui.cpp
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@ -651,6 +651,7 @@ ImGuiStyle::ImGuiStyle()
Colors[ImGuiCol_PlotHistogramHovered] = ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
Colors[ImGuiCol_TextSelectedBg] = ImVec4(0.00f, 0.00f, 1.00f, 0.35f);
Colors[ImGuiCol_TooltipBg] = ImVec4(0.05f, 0.05f, 0.10f, 0.90f);
Colors[ImGuiCol_ModalWindowDarkening] = ImVec4(0.20f, 0.20f, 0.20f, 0.35f);
}
// Statically allocated font atlas. This is merely a maneuver to keep ImFontAtlas definition at the bottom of the .h file (otherwise it'd be inside ImGuiIO)
@ -1297,6 +1298,7 @@ struct ImGuiState
// Render
ImVector<ImDrawList*> RenderDrawLists[3];
float ModalWindowDarkeningRatio;
// Mouse cursor
ImGuiMouseCursor MouseCursor;
@ -1377,6 +1379,7 @@ struct ImGuiState
memset(Tooltip, 0, sizeof(Tooltip));
PrivateClipboard = NULL;
ModalWindowDarkeningRatio = 0.0f;
MouseCursor = ImGuiMouseCursor_Arrow;
LogEnabled = false;
@ -2150,9 +2153,17 @@ void ImGui::NewFrame()
g.HoveredRootWindow = g.HoveredWindow->RootWindow;
else
g.HoveredRootWindow = FindHoveredWindow(g.IO.MousePos, true);
if (ImGuiWindow* modal_window = GetFrontMostModalRootWindow())
{
g.ModalWindowDarkeningRatio = ImMin(g.ModalWindowDarkeningRatio + g.IO.DeltaTime * 6.0f, 1.0f);
if (g.HoveredRootWindow != modal_window)
g.HoveredRootWindow = g.HoveredWindow = NULL;
}
else
{
g.ModalWindowDarkeningRatio = 0.0f;
}
// Are we using inputs? Tell user so they can capture/discard the inputs away from the rest of their application.
// When clicking outside of a window we assume the click is owned by the application and won't request capture.
@ -3799,6 +3810,13 @@ bool ImGui::Begin(const char* name, bool* p_opened, const ImVec2& size_on_first_
if (!window->Collapsed && !window->SkipItems)
window->ScrollY = ImMin(window->ScrollY, ImMax(0.0f, window->SizeContents.y - window->SizeFull.y));
// Modal window darkens what is behind them
if ((flags & ImGuiWindowFlags_Modal) != 0 && window == GetFrontMostModalRootWindow())
{
ImVec4 fullscreen_rect = GetVisibleRect();
window->DrawList->AddRectFilled(ImVec2(fullscreen_rect.x, fullscreen_rect.y), ImVec2(fullscreen_rect.z, fullscreen_rect.w), window->Color(ImGuiCol_ModalWindowDarkening, g.ModalWindowDarkeningRatio));
}
// Draw window + handle manual resize
ImRect title_bar_rect = window->TitleBarRect();
const float window_rounding = (flags & ImGuiWindowFlags_ChildWindow) ? style.ChildWindowRounding : style.WindowRounding;
@ -4392,6 +4410,7 @@ const char* ImGui::GetStyleColName(ImGuiCol idx)
case ImGuiCol_PlotHistogramHovered: return "PlotHistogramHovered";
case ImGuiCol_TextSelectedBg: return "TextSelectedBg";
case ImGuiCol_TooltipBg: return "TooltipBg";
case ImGuiCol_ModalWindowDarkening: return "ModalWindowDarkening";
}
IM_ASSERT(0);
return "Unknown";

1
imgui.h
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@ -528,6 +528,7 @@ enum ImGuiCol_
ImGuiCol_PlotHistogramHovered,
ImGuiCol_TextSelectedBg,
ImGuiCol_TooltipBg,
ImGuiCol_ModalWindowDarkening, // darken entire screen when a modal window is active
ImGuiCol_COUNT
};