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BeginTooltip: Added 'bool' return value to BeginTooltip() for API consistency. Updated demo. 

Add SetWindowHiddendAndSkipItemsForCurrentFrame().
This commit is contained in:
ocornut 2023-03-09 14:59:19 +01:00
parent b5f9381036
commit 3b2f617652
5 changed files with 43 additions and 30 deletions
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5
docs/CHANGELOG.txt
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@ -44,6 +44,10 @@ Breaking Changes:
OK: #define IMGUI_DEFINE_MATH_OPERATORS / #include "imgui.h" / #include "imgui_internal.h"
Error: #include "imgui.h" / #define IMGUI_DEFINE_MATH_OPERATORS / #include "imgui_internal.h"
Added a dedicated compile-time check message to help diagnose this.
- Tooltips: Added 'bool' return value to BeginTooltip() for API consistency.
Please only submit contents and call EndTooltip() if BeginTooltip() returns true.
In reality the function will _currently_ always return true, but further changes down the
line may change this, best to clarify API sooner. Updated demo code accordingly.
Other changes:
@ -66,6 +70,7 @@ Other changes:
- Backends: SDL2, SDL3: Accept SDL_GetPerformanceCounter() not returning a monotonically
increasing value. (#6189, #6114, #3644) [@adamkewley]
- Examples: Android: Fixed example build for Gradle 8. (#6229, #6227) [@duddel]
- Demo: Updated to test return value of BeginTooltip().
-----------------------------------------------------------------------

42
imgui.cpp
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@ -387,6 +387,7 @@ CODE
When you are not sure about an old symbol or function name, try using the Search/Find function of your IDE to look for comments or references in all imgui files.
You can read releases logs https://github.com/ocornut/imgui/releases for more details.
- 2023/03/09 (1.89.4) - tooltips: Added 'bool' return value to BeginTooltip() for API consistency. Please only submit contents and call EndTooltip() if BeginTooltip() returns true. In reality the function will _currently_ always return true, but further changes down the line may change this, best to clarify API sooner.
- 2023/02/15 (1.89.4) - moved the optional "courtesy maths operators" implementation from imgui_internal.h in imgui.h.
Even though we encourage using your own maths types and operators by setting up IM_VEC2_CLASS_EXTRA,
it has been frequently requested by people to use our own. We had an opt-in define which was
@ -7281,6 +7282,12 @@ void ImGui::SetWindowHitTestHole(ImGuiWindow* window, const ImVec2& pos, const I
window->HitTestHoleOffset = ImVec2ih(pos - window->Pos);
}
void ImGui::SetWindowHiddendAndSkipItemsForCurrentFrame(ImGuiWindow* window)
{
window->Hidden = window->SkipItems = true;
window->HiddenFramesCanSkipItems = 1;
}
void ImGui::SetWindowCollapsed(bool collapsed, ImGuiCond cond)
{
SetWindowCollapsed(GImGui->CurrentWindow, collapsed, cond);
@ -9875,12 +9882,12 @@ void ImGui::SetScrollHereY(float center_y_ratio)
// [SECTION] TOOLTIPS
//-----------------------------------------------------------------------------
void ImGui::BeginTooltip()
bool ImGui::BeginTooltip()
{
BeginTooltipEx(ImGuiTooltipFlags_None, ImGuiWindowFlags_None);
return BeginTooltipEx(ImGuiTooltipFlags_None, ImGuiWindowFlags_None);
}
void ImGui::BeginTooltipEx(ImGuiTooltipFlags tooltip_flags, ImGuiWindowFlags extra_window_flags)
bool ImGui::BeginTooltipEx(ImGuiTooltipFlags tooltip_flags, ImGuiWindowFlags extra_window_flags)
{
ImGuiContext& g = *GImGui;
@ -9904,12 +9911,17 @@ void ImGui::BeginTooltipEx(ImGuiTooltipFlags tooltip_flags, ImGuiWindowFlags ext
if (window->Active)
{
// Hide previous tooltip from being displayed. We can't easily "reset" the content of a window so we create a new one.
window->Hidden = true;
window->HiddenFramesCanSkipItems = 1; // FIXME: This may not be necessary?
SetWindowHiddendAndSkipItemsForCurrentFrame(window);
ImFormatString(window_name, IM_ARRAYSIZE(window_name), "##Tooltip_%02d", ++g.TooltipOverrideCount);
}
ImGuiWindowFlags flags = ImGuiWindowFlags_Tooltip | ImGuiWindowFlags_NoInputs | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoSavedSettings | ImGuiWindowFlags_AlwaysAutoResize;
Begin(window_name, NULL, flags | extra_window_flags);
// 2023-03-09: Added bool return value to the API, but currently always returning true.
// If this ever returns false we need to update BeginDragDropSource() accordingly.
//if (!ret)
// End();
//return ret;
return true;
}
void ImGui::EndTooltip()
@ -12030,13 +12042,12 @@ bool ImGui::BeginDragDropSource(ImGuiDragDropFlags flags)
{
// Target can request the Source to not display its tooltip (we use a dedicated flag to make this request explicit)
// We unfortunately can't just modify the source flags and skip the call to BeginTooltip, as caller may be emitting contents.
BeginTooltip();
bool ret = BeginTooltip();
IM_ASSERT(ret); // FIXME-NEWBEGIN: If this ever becomes false, we need to Begin("##Hidden", NULL, ImGuiWindowFlags_NoSavedSettings) + SetWindowHiddendAndSkipItemsForCurrentFrame().
IM_UNUSED(ret);
if (g.DragDropAcceptIdPrev && (g.DragDropAcceptFlags & ImGuiDragDropFlags_AcceptNoPreviewTooltip))
{
ImGuiWindow* tooltip_window = g.CurrentWindow;
tooltip_window->Hidden = tooltip_window->SkipItems = true;
tooltip_window->HiddenFramesCanSkipItems = 1;
}
SetWindowHiddendAndSkipItemsForCurrentFrame(g.CurrentWindow);
}
if (!(flags & ImGuiDragDropFlags_SourceNoDisableHover) && !(flags & ImGuiDragDropFlags_SourceExtern))
@ -13228,9 +13239,8 @@ void ImGui::DebugTextEncoding(const char* str)
static void MetricsHelpMarker(const char* desc)
{
ImGui::TextDisabled("(?)");
if (ImGui::IsItemHovered(ImGuiHoveredFlags_DelayShort))
if (ImGui::IsItemHovered(ImGuiHoveredFlags_DelayShort) && ImGui::BeginTooltip())
{
ImGui::BeginTooltip();
ImGui::PushTextWrapPos(ImGui::GetFontSize() * 35.0f);
ImGui::TextUnformatted(desc);
ImGui::PopTextWrapPos();
@ -13994,9 +14004,8 @@ void ImGui::DebugNodeFont(ImFont* font)
if (!glyph)
continue;
font->RenderChar(draw_list, cell_size, cell_p1, glyph_col, (ImWchar)(base + n));
if (IsMouseHoveringRect(cell_p1, cell_p2))
if (IsMouseHoveringRect(cell_p1, cell_p2) && BeginTooltip())
{
BeginTooltip();
DebugNodeFontGlyph(font, glyph);
EndTooltip();
}
@ -14333,7 +14342,8 @@ void ImGui::UpdateDebugToolItemPicker()
if (change_mapping && IsMouseClicked(mouse_button))
g.DebugItemPickerMouseButton = (ImU8)mouse_button;
SetNextWindowBgAlpha(0.70f);
BeginTooltip();
if (!BeginTooltip())
return;
Text("HoveredId: 0x%08X", hovered_id);
Text("Press ESC to abort picking.");
const char* mouse_button_names[] = { "Left", "Right", "Middle" };

4
imgui.h
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@ -665,8 +665,8 @@ namespace ImGui
// Tooltips
// - Tooltip are windows following the mouse. They do not take focus away.
IMGUI_API void BeginTooltip(); // begin/append a tooltip window. to create full-featured tooltip (with any kind of items).
IMGUI_API void EndTooltip();
IMGUI_API bool BeginTooltip(); // begin/append a tooltip window. to create full-featured tooltip (with any kind of items).
IMGUI_API void EndTooltip(); // only call EndTooltip() if BeginTooltip() returns true!
IMGUI_API void SetTooltip(const char* fmt, ...) IM_FMTARGS(1); // set a text-only tooltip, typically use with ImGui::IsItemHovered(). override any previous call to SetTooltip().
IMGUI_API void SetTooltipV(const char* fmt, va_list args) IM_FMTLIST(1);

19
imgui_demo.cpp
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@ -211,9 +211,8 @@ static void ShowDemoWindowInputs();
static void HelpMarker(const char* desc)
{
ImGui::TextDisabled("(?)");
if (ImGui::IsItemHovered(ImGuiHoveredFlags_DelayShort))
if (ImGui::IsItemHovered(ImGuiHoveredFlags_DelayShort) && ImGui::BeginTooltip())
{
ImGui::BeginTooltip();
ImGui::PushTextWrapPos(ImGui::GetFontSize() * 35.0f);
ImGui::TextUnformatted(desc);
ImGui::PopTextWrapPos();
@ -629,9 +628,8 @@ static void ShowDemoWindowWidgets()
ImGui::SameLine();
ImGui::SmallButton("Fancy");
if (ImGui::IsItemHovered())
if (ImGui::IsItemHovered() && ImGui::BeginTooltip())
{
ImGui::BeginTooltip();
ImGui::Text("I am a fancy tooltip");
static float arr[] = { 0.6f, 0.1f, 1.0f, 0.5f, 0.92f, 0.1f, 0.2f };
ImGui::PlotLines("Curve", arr, IM_ARRAYSIZE(arr));
@ -1047,9 +1045,8 @@ static void ShowDemoWindowWidgets()
ImVec4 tint_col = use_text_color_for_tint ? ImGui::GetStyleColorVec4(ImGuiCol_Text) : ImVec4(1.0f, 1.0f, 1.0f, 1.0f); // No tint
ImVec4 border_col = ImGui::GetStyleColorVec4(ImGuiCol_Border);
ImGui::Image(my_tex_id, ImVec2(my_tex_w, my_tex_h), uv_min, uv_max, tint_col, border_col);
if (ImGui::IsItemHovered())
if (ImGui::IsItemHovered() && ImGui::BeginTooltip())
{
ImGui::BeginTooltip();
float region_sz = 32.0f;
float region_x = io.MousePos.x - pos.x - region_sz * 0.5f;
float region_y = io.MousePos.y - pos.y - region_sz * 0.5f;
@ -3722,9 +3719,8 @@ static void EditTableSizingFlags(ImGuiTableFlags* p_flags)
}
ImGui::SameLine();
ImGui::TextDisabled("(?)");
if (ImGui::IsItemHovered())
if (ImGui::IsItemHovered() && ImGui::BeginTooltip())
{
ImGui::BeginTooltip();
ImGui::PushTextWrapPos(ImGui::GetFontSize() * 50.0f);
for (int m = 0; m < IM_ARRAYSIZE(policies); m++)
{
@ -6318,10 +6314,11 @@ void ImGui::ShowStyleEditor(ImGuiStyle* ref)
// When editing the "Circle Segment Max Error" value, draw a preview of its effect on auto-tessellated circles.
ImGui::DragFloat("Circle Tessellation Max Error", &style.CircleTessellationMaxError , 0.005f, 0.10f, 5.0f, "%.2f", ImGuiSliderFlags_AlwaysClamp);
if (ImGui::IsItemActive())
{
const bool show_samples = ImGui::IsItemActive();
if (show_samples)
ImGui::SetNextWindowPos(ImGui::GetCursorScreenPos());
ImGui::BeginTooltip();
if (show_samples && ImGui::BeginTooltip())
{
ImGui::TextUnformatted("(R = radius, N = number of segments)");
ImGui::Spacing();
ImDrawList* draw_list = ImGui::GetWindowDrawList();

3
imgui_internal.h
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@ -2723,6 +2723,7 @@ namespace ImGui
IMGUI_API void SetWindowSize(ImGuiWindow* window, const ImVec2& size, ImGuiCond cond = 0);
IMGUI_API void SetWindowCollapsed(ImGuiWindow* window, bool collapsed, ImGuiCond cond = 0);
IMGUI_API void SetWindowHitTestHole(ImGuiWindow* window, const ImVec2& pos, const ImVec2& size);
IMGUI_API void SetWindowHiddendAndSkipItemsForCurrentFrame(ImGuiWindow* window);
inline ImRect WindowRectAbsToRel(ImGuiWindow* window, const ImRect& r) { ImVec2 off = window->DC.CursorStartPos; return ImRect(r.Min.x - off.x, r.Min.y - off.y, r.Max.x - off.x, r.Max.y - off.y); }
inline ImRect WindowRectRelToAbs(ImGuiWindow* window, const ImRect& r) { ImVec2 off = window->DC.CursorStartPos; return ImRect(r.Min.x + off.x, r.Min.y + off.y, r.Max.x + off.x, r.Max.y + off.y); }
@ -2843,7 +2844,7 @@ namespace ImGui
IMGUI_API void ClosePopupsExceptModals();
IMGUI_API bool IsPopupOpen(ImGuiID id, ImGuiPopupFlags popup_flags);
IMGUI_API bool BeginPopupEx(ImGuiID id, ImGuiWindowFlags extra_flags);
IMGUI_API void BeginTooltipEx(ImGuiTooltipFlags tooltip_flags, ImGuiWindowFlags extra_window_flags);
IMGUI_API bool BeginTooltipEx(ImGuiTooltipFlags tooltip_flags, ImGuiWindowFlags extra_window_flags);
IMGUI_API ImRect GetPopupAllowedExtentRect(ImGuiWindow* window);
IMGUI_API ImGuiWindow* GetTopMostPopupModal();
IMGUI_API ImGuiWindow* GetTopMostAndVisiblePopupModal();