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Windows: BeginChild(): Resize borders rendered even when ImGuiWindowFlags_NoBackground is specified. (#1710, #7194)

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ocornut 2024-01-04 17:23:30 +01:00
parent 0461ade24b
commit a1b06823fe
2 changed files with 26 additions and 12 deletions
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2
docs/CHANGELOG.txt
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@ -56,6 +56,8 @@ Other changes:
- Windows: BeginChild(): Fixed auto-resizing erroneously limiting size to host viewport
minus padding. There are no limit to a child width/height. (#7063) [@Devyre]
- Windows: BeginChild(): Resize borders rendered even when ImGuiWindowFlags_NoBackground
is specified. (#1710, #7194)
- Windows: Fixed some auto-resizing path using style.WindowMinSize.x (instead of x/y)
for both axises since 1.90. (#7106) [@n0bodysec]
- Scrolling: internal scrolling value is rounded instead of truncated, as a way to reduce

36
imgui.cpp
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@ -6082,28 +6082,40 @@ static inline void ClampWindowPos(ImGuiWindow* window, const ImRect& visibility_
window->Pos = ImClamp(window->Pos, visibility_rect.Min - size_for_clamping, visibility_rect.Max);
}
static void RenderWindowOuterSingleBorder(ImGuiWindow* window, int border_n, ImU32 border_col, float border_size)
{
const ImGuiResizeBorderDef& def = resize_border_def[border_n];
const float rounding = window->WindowRounding;
const ImRect border_r = GetResizeBorderRect(window, border_n, rounding, 0.0f);
window->DrawList->PathArcTo(ImLerp(border_r.Min, border_r.Max, def.SegmentN1) + ImVec2(0.5f, 0.5f) + def.InnerDir * rounding, rounding, def.OuterAngle - IM_PI * 0.25f, def.OuterAngle);
window->DrawList->PathArcTo(ImLerp(border_r.Min, border_r.Max, def.SegmentN2) + ImVec2(0.5f, 0.5f) + def.InnerDir * rounding, rounding, def.OuterAngle, def.OuterAngle + IM_PI * 0.25f);
window->DrawList->PathStroke(border_col, ImDrawFlags_None, border_size);
}
static void ImGui::RenderWindowOuterBorders(ImGuiWindow* window)
{
ImGuiContext& g = *GImGui;
float rounding = window->WindowRounding;
float border_size = window->WindowBorderSize;
if (border_size > 0.0f && !(window->Flags & ImGuiWindowFlags_NoBackground))
window->DrawList->AddRect(window->Pos, window->Pos + window->Size, GetColorU32(ImGuiCol_Border), rounding, 0, border_size);
const float border_size = window->WindowBorderSize;
const ImU32 border_col = GetColorU32(ImGuiCol_Border);
if (border_size > 0.0f && (window->Flags & ImGuiWindowFlags_NoBackground) == 0)
window->DrawList->AddRect(window->Pos, window->Pos + window->Size, border_col, window->WindowRounding, 0, window->WindowBorderSize);
else if (border_size > 0.0f)
{
if (window->ChildFlags & ImGuiChildFlags_ResizeX) // Similar code as 'resize_border_mask' computation in UpdateWindowManualResize() but we specifically only always draw explicit child resize border.
RenderWindowOuterSingleBorder(window, 1, border_col, border_size);
if (window->ChildFlags & ImGuiChildFlags_ResizeY)
RenderWindowOuterSingleBorder(window, 3, border_col, border_size);
}
if (window->ResizeBorderHovered != -1 || window->ResizeBorderHeld != -1)
{
const int border_n = (window->ResizeBorderHeld != -1) ? window->ResizeBorderHeld : window->ResizeBorderHovered;
const ImGuiResizeBorderDef& def = resize_border_def[border_n];
const ImRect border_r = GetResizeBorderRect(window, border_n, rounding, 0.0f);
const ImU32 border_col = GetColorU32((window->ResizeBorderHeld != -1) ? ImGuiCol_SeparatorActive : ImGuiCol_SeparatorHovered);
window->DrawList->PathArcTo(ImLerp(border_r.Min, border_r.Max, def.SegmentN1) + ImVec2(0.5f, 0.5f) + def.InnerDir * rounding, rounding, def.OuterAngle - IM_PI * 0.25f, def.OuterAngle);
window->DrawList->PathArcTo(ImLerp(border_r.Min, border_r.Max, def.SegmentN2) + ImVec2(0.5f, 0.5f) + def.InnerDir * rounding, rounding, def.OuterAngle, def.OuterAngle + IM_PI * 0.25f);
window->DrawList->PathStroke(border_col, 0, ImMax(2.0f, border_size)); // Thicker than usual
const ImU32 border_col_resizing = GetColorU32((window->ResizeBorderHeld != -1) ? ImGuiCol_SeparatorActive : ImGuiCol_SeparatorHovered);
RenderWindowOuterSingleBorder(window, border_n, border_col_resizing, ImMax(2.0f, window->WindowBorderSize)); // Thicker than usual
}
if (g.Style.FrameBorderSize > 0 && !(window->Flags & ImGuiWindowFlags_NoTitleBar))
{
float y = window->Pos.y + window->TitleBarHeight() - 1;
window->DrawList->AddLine(ImVec2(window->Pos.x + border_size, y), ImVec2(window->Pos.x + window->Size.x - border_size, y), GetColorU32(ImGuiCol_Border), g.Style.FrameBorderSize);
window->DrawList->AddLine(ImVec2(window->Pos.x + border_size, y), ImVec2(window->Pos.x + window->Size.x - border_size, y), border_col, g.Style.FrameBorderSize);
}
}