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Tooltip: SetTooltip() is expanded immediately into a window, honoring current font / styling setting. Add internal mechanism to override tooltips (not exposed in BeginTooltip yet because bools are evil) (#862)
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36
imgui.cpp
36
imgui.cpp
@ -2157,7 +2157,7 @@ void ImGui::NewFrame()
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g.Time += g.IO.DeltaTime;
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g.FrameCount += 1;
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g.Tooltip[0] = '\0';
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g.TooltipOverrideCount = 0;
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g.OverlayDrawList.Clear();
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g.OverlayDrawList.PushTextureID(g.IO.Fonts->TexID);
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g.OverlayDrawList.PushClipRectFullScreen();
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@ -2657,14 +2657,6 @@ void ImGui::EndFrame()
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IM_ASSERT(g.Initialized); // Forgot to call ImGui::NewFrame()
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IM_ASSERT(g.FrameCountEnded != g.FrameCount); // ImGui::EndFrame() called multiple times, or forgot to call ImGui::NewFrame() again
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// Render tooltip
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if (g.Tooltip[0])
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{
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ImGui::BeginTooltip();
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ImGui::TextUnformatted(g.Tooltip);
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ImGui::EndTooltip();
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}
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// Notify OS when our Input Method Editor cursor has moved (e.g. CJK inputs using Microsoft IME)
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if (g.IO.ImeSetInputScreenPosFn && ImLengthSqr(g.OsImePosRequest - g.OsImePosSet) > 0.0001f)
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{
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@ -3388,11 +3380,28 @@ static ImRect GetVisibleRect()
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return ImRect(0.0f, 0.0f, g.IO.DisplaySize.x, g.IO.DisplaySize.y);
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}
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// Tooltip is stored and turned into a BeginTooltip()/EndTooltip() sequence at the end of the frame. Each call override previous value.
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void ImGui::SetTooltipV(const char* fmt, va_list args)
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// Not exposed publicly as BeginTooltip() because bool parameters are evil. Let's see if other needs arise first.
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static void BeginTooltipEx(bool override_previous_tooltip)
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{
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ImGuiContext& g = *GImGui;
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ImFormatStringV(g.Tooltip, IM_ARRAYSIZE(g.Tooltip), fmt, args);
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char window_name[16];
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ImFormatString(window_name, IM_ARRAYSIZE(window_name), "##Tooltip%02d", g.TooltipOverrideCount);
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if (override_previous_tooltip)
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if (ImGuiWindow* window = ImGui::FindWindowByName(window_name))
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if (window->Active)
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{
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// Hide previous tooltips. We can't easily "reset" the content of a window so we create a new one.
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window->HiddenFrames = 1;
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ImFormatString(window_name, IM_ARRAYSIZE(window_name), "##Tooltip%02d", ++g.TooltipOverrideCount);
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}
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ImGui::Begin(window_name, NULL, ImGuiWindowFlags_Tooltip|ImGuiWindowFlags_NoTitleBar|ImGuiWindowFlags_NoMove|ImGuiWindowFlags_NoResize|ImGuiWindowFlags_NoSavedSettings|ImGuiWindowFlags_AlwaysAutoResize);
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}
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void ImGui::SetTooltipV(const char* fmt, va_list args)
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{
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BeginTooltipEx(true);
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TextV(fmt, args);
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EndTooltip();
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}
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void ImGui::SetTooltip(const char* fmt, ...)
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@ -3405,8 +3414,7 @@ void ImGui::SetTooltip(const char* fmt, ...)
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void ImGui::BeginTooltip()
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{
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ImGuiWindowFlags flags = ImGuiWindowFlags_Tooltip|ImGuiWindowFlags_NoTitleBar|ImGuiWindowFlags_NoMove|ImGuiWindowFlags_NoResize|ImGuiWindowFlags_NoSavedSettings|ImGuiWindowFlags_AlwaysAutoResize;
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ImGui::Begin("##Tooltip", NULL, flags);
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BeginTooltipEx(false);
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}
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void ImGui::EndTooltip()
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