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Tab Bar: Fix reorderable tab bars. Fix misleading use of tab_max_width in TabBarLayout(). Misc amends, shortening. (#3291)

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ocornut
2020-09-21 18:40:18 +02:00
parent 3422cb1308
commit 205874f5b1
4 changed files with 84 additions and 80 deletions
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18
imgui_internal.h
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@@ -1716,7 +1716,7 @@ struct ImGuiTabItem
int LastFrameSelected; // This allows us to infer an ordered list of the last activated tabs with little maintenance
float Offset; // Position relative to beginning of tab
float Width; // Width currently displayed
float ContentWidth; // Width of actual contents, stored during BeginTabItem() call
float ContentWidth; // Width of label, stored during BeginTabItem() call
ImS16 NameOffset; // When Window==NULL, offset to name within parent ImGuiTabBar::TabsNames
ImS8 BeginOrder; // BeginTabItem() order, used to re-order tabs after toggling ImGuiTabBarFlags_Reorderable
ImS8 IndexDuringLayout; // Index only used during TabBarLayout()
@@ -1727,13 +1727,13 @@ struct ImGuiTabItem
struct ImGuiTabBarSection
{
int TabStartIndex;
int TabCount;
float Width;
float WidthIdeal;
float InnerSpacing; // Horizontal ItemInnerSpacing, used by Leading/Trailing section, to correctly offset from Central section
float WidthWithSpacing() const { return Width + InnerSpacing; }
int TabStartIndex; // Index of first tab in this section.
int TabCount; // Number of tabs in this section.
float Width; // Width of this section (after shrinking down)
float Spacing; // Horizontal spacing at the end of the section.
ImGuiTabBarSection(){ memset(this, 0, sizeof(*this)); }
float WidthWithSpacing() const { return Width + Spacing; }
};
// Storage for a tab bar (sizeof() 92~96 bytes)
@@ -1758,12 +1758,12 @@ struct ImGuiTabBar
ImGuiID ReorderRequestTabId;
ImS8 ReorderRequestDir;
ImS8 TabsActiveCount; // Number of tabs submitted this frame.
ImGuiTabBarSection Sections[3];
bool WantLayout;
bool VisibleTabWasSubmitted;
short LastTabItemIdx; // Index of last BeginTabItem() tab for use by EndTabItem()
bool TabsAddedNew; // Set to true when a new tab item or button has been added to the tab bar during last frame
short LastTabItemIdx; // Index of last BeginTabItem() tab for use by EndTabItem()
ImVec2 FramePadding; // style.FramePadding locked at the time of BeginTabBar()
ImGuiTabBarSection Sections[3]; // Layout sections: Leading, Central, Trailing
ImGuiTextBuffer TabsNames; // For non-docking tab bar we re-append names in a contiguous buffer.
ImGuiTabBar();