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Fix hovering of child window extending past their parent not taking account of parent clipping rectangle (Fix #137)

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This commit is contained in:
ocornut 2015-02-22 12:05:38 +00:00
parent 835a46effb
commit 4229b7e60b
1 changed files with 11 additions and 3 deletions
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14
imgui.cpp
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@ -1103,6 +1103,7 @@ struct ImGuiWindow
ImGuiDrawContext DC;
ImVector<ImGuiID> IDStack;
ImVector<ImVec4> ClipRectStack; // Scissoring / clipping rectangle. x1, y1, x2, y2.
ImGuiAabb ClippedAabb; // = ClipRectStack.front() after setup in Begin()
int LastFrameDrawn;
float ItemWidthDefault;
ImGuiStorage StateStorage;
@ -1416,8 +1417,7 @@ ImGuiWindow::ImGuiWindow(const char* name)
{
Name = ImStrdup(name);
ID = GetID(name);
IDStack.push_back(ID);
Flags = 0;
PosFloat = Pos = ImVec2(0.0f, 0.0f);
Size = SizeFull = ImVec2(0.0f, 0.0f);
SizeContentsFit = ImVec2(0.0f, 0.0f);
@ -1432,6 +1432,7 @@ ImGuiWindow::ImGuiWindow(const char* name)
AutoFitOnlyGrows = false;
SetWindowPosAllowFlags = SetWindowSizeAllowFlags = SetWindowCollapsedAllowFlags = ImGuiSetCondition_Always | ImGuiSetCondition_FirstUseThisSession | ImGuiSetCondition_FirstUseEver;
IDStack.push_back(ID);
LastFrameDrawn = -1;
ItemWidthDefault = 0.0f;
FontWindowScale = 1.0f;
@ -1444,6 +1445,7 @@ ImGuiWindow::ImGuiWindow(const char* name)
DrawList = (ImDrawList*)ImGui::MemAlloc(sizeof(ImDrawList));
new(DrawList) ImDrawList();
RootWindow = NULL;
FocusIdxAllCounter = FocusIdxTabCounter = -1;
FocusIdxAllRequestCurrent = FocusIdxTabRequestCurrent = IM_INT_MAX;
@ -2332,7 +2334,9 @@ static ImGuiWindow* FindHoveredWindow(ImVec2 pos, bool excluding_childs)
continue;
if (excluding_childs && (window->Flags & ImGuiWindowFlags_ChildWindow) != 0)
continue;
ImGuiAabb bb(window->Pos - g.Style.TouchExtraPadding, window->Pos + window->Size + g.Style.TouchExtraPadding);
// Using the clipped AABB so a child window will typically be clipped by its parent.
ImGuiAabb bb(window->ClippedAabb.Min - g.Style.TouchExtraPadding, window->ClippedAabb.Max + g.Style.TouchExtraPadding);
if (bb.Contains(pos))
return window;
}
@ -3046,6 +3050,10 @@ bool ImGui::Begin(const char* name, bool* p_opened, ImVec2 size, float fill_alph
const ImVec2 text_max = window->Pos + ImVec2(window->Size.x - (p_opened ? (title_bar_aabb.GetHeight()-3) : style.FramePadding.x), style.FramePadding.y*2 + text_size.y);
RenderTextClipped(text_min, name, NULL, &text_size, text_max);
}
// Save clipped aabb so we can access it in constant-time in FindHoveredWindow()
window->ClippedAabb = window->Aabb();
window->ClippedAabb.Clip(window->ClipRectStack.front());
}
// Inner clipping rectangle