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Internals: added facility to hide windows from render without interfering with the HiddenFramesCanSkipItems/HiddenFramesCannotSkipItems fields which have effects on layout. Compact some fields.

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Ideally we'd have a simpler system but it's not easy to make the capture system change to hook at the right spot. Will rework.
This commit is contained in:
ocornut 2020-12-11 14:29:42 +01:00
parent 1ad5502f18
commit bff1836922
3 changed files with 12 additions and 9 deletions
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6
imgui.cpp
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@ -5668,6 +5668,8 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
window->HiddenFramesCanSkipItems--;
if (window->HiddenFramesCannotSkipItems > 0)
window->HiddenFramesCannotSkipItems--;
if (window->HiddenFramesForRenderOnly > 0)
window->HiddenFramesForRenderOnly--;
// Hide new windows for one frame until they calculate their size
if (window_just_created && (!window_size_x_set_by_api || !window_size_y_set_by_api))
@ -6121,7 +6123,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
window->HiddenFramesCanSkipItems = 1;
// Update the Hidden flag
window->Hidden = (window->HiddenFramesCanSkipItems > 0) || (window->HiddenFramesCannotSkipItems > 0);
window->Hidden = (window->HiddenFramesCanSkipItems > 0) || (window->HiddenFramesCannotSkipItems > 0) || (window->HiddenFramesForRenderOnly > 0);
// Update the SkipItems flag, used to early out of all items functions (no layout required)
bool skip_items = false;
@ -7788,7 +7790,7 @@ void ImGui::BeginTooltipEx(ImGuiWindowFlags extra_flags, ImGuiTooltipFlags toolt
{
// 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;
window->HiddenFramesCanSkipItems = 1; // FIXME: This may not be necessary?
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;

11
imgui_internal.h
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@ -1722,11 +1722,12 @@ struct IMGUI_API ImGuiWindow
ImS8 AutoFitChildAxises;
bool AutoFitOnlyGrows;
ImGuiDir AutoPosLastDirection;
int HiddenFramesCanSkipItems; // Hide the window for N frames
int HiddenFramesCannotSkipItems; // Hide the window for N frames while allowing items to be submitted so we can measure their size
ImGuiCond SetWindowPosAllowFlags; // store acceptable condition flags for SetNextWindowPos() use.
ImGuiCond SetWindowSizeAllowFlags; // store acceptable condition flags for SetNextWindowSize() use.
ImGuiCond SetWindowCollapsedAllowFlags; // store acceptable condition flags for SetNextWindowCollapsed() use.
ImS8 HiddenFramesCanSkipItems; // Hide the window for N frames
ImS8 HiddenFramesCannotSkipItems; // Hide the window for N frames while allowing items to be submitted so we can measure their size
ImS8 HiddenFramesForRenderOnly; // Hide the window until frame N at Render() time only
ImGuiCond SetWindowPosAllowFlags : 8; // store acceptable condition flags for SetNextWindowPos() use.
ImGuiCond SetWindowSizeAllowFlags : 8; // store acceptable condition flags for SetNextWindowSize() use.
ImGuiCond SetWindowCollapsedAllowFlags : 8; // store acceptable condition flags for SetNextWindowCollapsed() use.
ImVec2 SetWindowPosVal; // store window position when using a non-zero Pivot (position set needs to be processed when we know the window size)
ImVec2 SetWindowPosPivot; // store window pivot for positioning. ImVec2(0, 0) when positioning from top-left corner; ImVec2(0.5f, 0.5f) for centering; ImVec2(1, 1) for bottom right.

4
imgui_tables.cpp
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@ -716,8 +716,8 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
// Combine width from regular rows + width from headers unless requested not to.
if (!column->IsPreserveWidthAuto)
{
const float content_width_body = (float)ImMax(column->ContentMaxXFrozen, column->ContentMaxXUnfrozen) - column->WorkMinX;
const float content_width_headers = (float)column->ContentMaxXHeadersIdeal - column->WorkMinX;
const float content_width_body = ImMax(column->ContentMaxXFrozen, column->ContentMaxXUnfrozen) - column->WorkMinX;
const float content_width_headers = column->ContentMaxXHeadersIdeal - column->WorkMinX;
float width_auto = content_width_body;
if (!(table->Flags & ImGuiTableFlags_NoHeadersWidth) && !(column->Flags & ImGuiTableColumnFlags_NoHeaderWidth))
width_auto = ImMax(width_auto, content_width_headers);