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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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This commit is contained in:
omar
2017-07-21 02:21:48 +08:00
parent 100d30a0a1
commit 138a9dbaeb
3 changed files with 26 additions and 18 deletions
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36
imgui.cpp
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@ -2157,7 +2157,7 @@ void ImGui::NewFrame()
g.Time += g.IO.DeltaTime;
g.FrameCount += 1;
g.Tooltip[0] = '\0';
g.TooltipOverrideCount = 0;
g.OverlayDrawList.Clear();
g.OverlayDrawList.PushTextureID(g.IO.Fonts->TexID);
g.OverlayDrawList.PushClipRectFullScreen();
@ -2657,14 +2657,6 @@ void ImGui::EndFrame()
IM_ASSERT(g.Initialized); // Forgot to call ImGui::NewFrame()
IM_ASSERT(g.FrameCountEnded != g.FrameCount); // ImGui::EndFrame() called multiple times, or forgot to call ImGui::NewFrame() again
// Render tooltip
if (g.Tooltip[0])
{
ImGui::BeginTooltip();
ImGui::TextUnformatted(g.Tooltip);
ImGui::EndTooltip();
}
// Notify OS when our Input Method Editor cursor has moved (e.g. CJK inputs using Microsoft IME)
if (g.IO.ImeSetInputScreenPosFn && ImLengthSqr(g.OsImePosRequest - g.OsImePosSet) > 0.0001f)
{
@ -3388,11 +3380,28 @@ static ImRect GetVisibleRect()
return ImRect(0.0f, 0.0f, g.IO.DisplaySize.x, g.IO.DisplaySize.y);
}
// Tooltip is stored and turned into a BeginTooltip()/EndTooltip() sequence at the end of the frame. Each call override previous value.
void ImGui::SetTooltipV(const char* fmt, va_list args)
// Not exposed publicly as BeginTooltip() because bool parameters are evil. Let's see if other needs arise first.
static void BeginTooltipEx(bool override_previous_tooltip)
{
ImGuiContext& g = *GImGui;
ImFormatStringV(g.Tooltip, IM_ARRAYSIZE(g.Tooltip), fmt, args);
char window_name[16];
ImFormatString(window_name, IM_ARRAYSIZE(window_name), "##Tooltip%02d", g.TooltipOverrideCount);
if (override_previous_tooltip)
if (ImGuiWindow* window = ImGui::FindWindowByName(window_name))
if (window->Active)
{
// Hide previous tooltips. We can't easily "reset" the content of a window so we create a new one.
window->HiddenFrames = 1;
ImFormatString(window_name, IM_ARRAYSIZE(window_name), "##Tooltip%02d", ++g.TooltipOverrideCount);
}
ImGui::Begin(window_name, NULL, ImGuiWindowFlags_Tooltip|ImGuiWindowFlags_NoTitleBar|ImGuiWindowFlags_NoMove|ImGuiWindowFlags_NoResize|ImGuiWindowFlags_NoSavedSettings|ImGuiWindowFlags_AlwaysAutoResize);
}
void ImGui::SetTooltipV(const char* fmt, va_list args)
{
BeginTooltipEx(true);
TextV(fmt, args);
EndTooltip();
}
void ImGui::SetTooltip(const char* fmt, ...)
@ -3405,8 +3414,7 @@ void ImGui::SetTooltip(const char* fmt, ...)
void ImGui::BeginTooltip()
{
ImGuiWindowFlags flags = ImGuiWindowFlags_Tooltip|ImGuiWindowFlags_NoTitleBar|ImGuiWindowFlags_NoMove|ImGuiWindowFlags_NoResize|ImGuiWindowFlags_NoSavedSettings|ImGuiWindowFlags_AlwaysAutoResize;
ImGui::Begin("##Tooltip", NULL, flags);
BeginTooltipEx(false);
}
void ImGui::EndTooltip()