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Tab Bar: Restore cursor position in EndTabBar() when amending (amend f2f32602) + made LastTabItemIdx consistent ImS8 as other tab storage relies on same type

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ocornut 2020-10-19 11:32:53 +02:00
parent c9fafd5ea4
commit 748bd1ba9c
2 changed files with 14 additions and 6 deletions
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8
imgui_internal.h
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@ -1743,10 +1743,11 @@ struct ImGuiTabItem
ImGuiTabItem() { ID = 0; Flags = ImGuiTabItemFlags_None; LastFrameVisible = LastFrameSelected = -1; NameOffset = -1; Offset = Width = ContentWidth = 0.0f; BeginOrder = -1; IndexDuringLayout = -1; WantClose = false; } ImGuiTabItem() { ID = 0; Flags = ImGuiTabItemFlags_None; LastFrameVisible = LastFrameSelected = -1; NameOffset = -1; Offset = Width = ContentWidth = 0.0f; BeginOrder = -1; IndexDuringLayout = -1; WantClose = false; }
}; };
// Storage for a tab bar (sizeof() 92~96 bytes) // Storage for a tab bar (sizeof() 152 bytes)
struct ImGuiTabBar struct ImGuiTabBar
{ {
ImVector<ImGuiTabItem> Tabs; ImVector<ImGuiTabItem> Tabs;
ImGuiTabBarFlags Flags;
ImGuiID ID; // Zero for tab-bars used by docking ImGuiID ID; // Zero for tab-bars used by docking
ImGuiID SelectedTabId; // Selected tab/window ImGuiID SelectedTabId; // Selected tab/window
ImGuiID NextSelectedTabId; ImGuiID NextSelectedTabId;
@ -1764,16 +1765,17 @@ struct ImGuiTabBar
float ScrollingSpeed; float ScrollingSpeed;
float ScrollingRectMinX; float ScrollingRectMinX;
float ScrollingRectMaxX; float ScrollingRectMaxX;
ImGuiTabBarFlags Flags;
ImGuiID ReorderRequestTabId; ImGuiID ReorderRequestTabId;
ImS8 ReorderRequestDir; ImS8 ReorderRequestDir;
ImS8 TabsActiveCount; // Number of tabs submitted this frame. ImS8 TabsActiveCount; // Number of tabs submitted this frame.
ImS8 LastTabItemIdx; // Index of last BeginTabItem() tab for use by EndTabItem()
ImS8 BeginCount;
bool WantLayout; bool WantLayout;
bool VisibleTabWasSubmitted; bool VisibleTabWasSubmitted;
bool TabsAddedNew; // Set to true when a new tab item or button has been added to the tab bar during last frame 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() ImVec2 FramePadding; // style.FramePadding locked at the time of BeginTabBar()
ImVec2 TabsContentsMin; ImVec2 TabsContentsMin;
ImVec2 BackupCursorPos;
ImGuiTextBuffer TabsNames; // For non-docking tab bar we re-append names in a contiguous buffer. ImGuiTextBuffer TabsNames; // For non-docking tab bar we re-append names in a contiguous buffer.
ImGuiTabBar(); ImGuiTabBar();

12
imgui_widgets.cpp
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@ -6802,6 +6802,7 @@ namespace ImGui
ImGuiTabBar::ImGuiTabBar() ImGuiTabBar::ImGuiTabBar()
{ {
Flags = ImGuiTabBarFlags_None;
ID = 0; ID = 0;
SelectedTabId = NextSelectedTabId = VisibleTabId = 0; SelectedTabId = NextSelectedTabId = VisibleTabId = 0;
CurrFrameVisible = PrevFrameVisible = -1; CurrFrameVisible = PrevFrameVisible = -1;
@ -6809,12 +6810,12 @@ ImGuiTabBar::ImGuiTabBar()
WidthAllTabs = WidthAllTabsIdeal = 0.0f; WidthAllTabs = WidthAllTabsIdeal = 0.0f;
ScrollingAnim = ScrollingTarget = ScrollingTargetDistToVisibility = ScrollingSpeed = 0.0f; ScrollingAnim = ScrollingTarget = ScrollingTargetDistToVisibility = ScrollingSpeed = 0.0f;
ScrollingRectMinX = ScrollingRectMaxX = 0.0f; ScrollingRectMinX = ScrollingRectMaxX = 0.0f;
Flags = ImGuiTabBarFlags_None;
ReorderRequestTabId = 0; ReorderRequestTabId = 0;
ReorderRequestDir = 0; ReorderRequestDir = 0;
TabsActiveCount = 0; TabsActiveCount = 0;
WantLayout = VisibleTabWasSubmitted = TabsAddedNew = false;
LastTabItemIdx = -1; LastTabItemIdx = -1;
BeginCount = 0;
WantLayout = VisibleTabWasSubmitted = TabsAddedNew = false;
} }
static int IMGUI_CDECL TabItemComparerBySection(const void* lhs, const void* rhs) static int IMGUI_CDECL TabItemComparerBySection(const void* lhs, const void* rhs)
@ -6878,9 +6879,11 @@ bool ImGui::BeginTabBarEx(ImGuiTabBar* tab_bar, const ImRect& tab_bar_bb, ImG
g.CurrentTabBar = tab_bar; g.CurrentTabBar = tab_bar;
// Append with multiple BeginTabBar()/EndTabBar() pairs. // Append with multiple BeginTabBar()/EndTabBar() pairs.
tab_bar->BackupCursorPos = window->DC.CursorPos;
if (tab_bar->CurrFrameVisible == g.FrameCount) if (tab_bar->CurrFrameVisible == g.FrameCount)
{ {
window->DC.CursorPos = tab_bar->TabsContentsMin; window->DC.CursorPos = tab_bar->TabsContentsMin;
tab_bar->BeginCount++;
return true; return true;
} }
@ -6903,6 +6906,7 @@ bool ImGui::BeginTabBarEx(ImGuiTabBar* tab_bar, const ImRect& tab_bar_bb, ImG
tab_bar->CurrTabsContentsHeight = 0.0f; tab_bar->CurrTabsContentsHeight = 0.0f;
tab_bar->FramePadding = g.Style.FramePadding; tab_bar->FramePadding = g.Style.FramePadding;
tab_bar->TabsActiveCount = 0; tab_bar->TabsActiveCount = 0;
tab_bar->BeginCount = 1;
// Set cursor pos in a way which only be used in the off-chance the user erroneously submits item before BeginTabItem(): items will overlap // Set cursor pos in a way which only be used in the off-chance the user erroneously submits item before BeginTabItem(): items will overlap
tab_bar->TabsContentsMin.x = tab_bar->BarRect.Min.x; tab_bar->TabsContentsMin.x = tab_bar->BarRect.Min.x;
@ -6949,6 +6953,8 @@ void ImGui::EndTabBar()
{ {
window->DC.CursorPos.y = tab_bar->BarRect.Max.y + tab_bar->PrevTabsContentsHeight; window->DC.CursorPos.y = tab_bar->BarRect.Max.y + tab_bar->PrevTabsContentsHeight;
} }
if (tab_bar->BeginCount > 1)
window->DC.CursorPos = tab_bar->BackupCursorPos;
if ((tab_bar->Flags & ImGuiTabBarFlags_DockNode) == 0) if ((tab_bar->Flags & ImGuiTabBarFlags_DockNode) == 0)
PopID(); PopID();
@ -7543,7 +7549,7 @@ bool ImGui::TabItemEx(ImGuiTabBar* tab_bar, const char* label, bool* p_open,
tab_bar->TabsAddedNew = true; tab_bar->TabsAddedNew = true;
tab_is_new = true; tab_is_new = true;
} }
tab_bar->LastTabItemIdx = (short)tab_bar->Tabs.index_from_ptr(tab); tab_bar->LastTabItemIdx = (ImS8)tab_bar->Tabs.index_from_ptr(tab);
tab->ContentWidth = size.x; tab->ContentWidth = size.x;
tab->BeginOrder = tab_bar->TabsActiveCount++; tab->BeginOrder = tab_bar->TabsActiveCount++;