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Internal: Extracted some of the Begin code into RenderWindowDecorations().

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This commit is contained in:
omar 2019-05-10 22:45:52 +02:00
parent 72951a1a85
commit 7c256fbd40
1 changed files with 79 additions and 69 deletions
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148
imgui.cpp
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@ -1077,6 +1077,7 @@ static void UpdateMouseInputs();
static void UpdateMouseWheel();
static void UpdateManualResize(ImGuiWindow* window, const ImVec2& size_auto_fit, int* border_held, int resize_grip_count, ImU32 resize_grip_col[4]);
static void RenderWindowOuterBorders(ImGuiWindow* window);
static void RenderWindowDecorations(ImGuiWindow* window, const ImRect& title_bar_rect, bool title_bar_is_highlight, int resize_grip_count, const ImU32 resize_grip_col[4], float resize_grip_draw_size);
static void RenderWindowTitleBarContents(ImGuiWindow* window, const ImRect& title_bar_rect, const char* name, bool* p_open);
}
@ -4964,6 +4965,82 @@ static void ImGui::RenderWindowOuterBorders(ImGuiWindow* window)
}
}
void ImGui::RenderWindowDecorations(ImGuiWindow* window, const ImRect& title_bar_rect, bool title_bar_is_highlight, int resize_grip_count, const ImU32 resize_grip_col[4], float resize_grip_draw_size)
{
ImGuiContext& g = *GImGui;
ImGuiStyle& style = g.Style;
ImGuiWindowFlags flags = window->Flags;
// Draw window + handle manual resize
// As we highlight the title bar when want_focus is set, multiple reappearing windows will have have their title bar highlighted on their reappearing frame.
const float window_rounding = window->WindowRounding;
const float window_border_size = window->WindowBorderSize;
if (window->Collapsed)
{
// Title bar only
float backup_border_size = style.FrameBorderSize;
g.Style.FrameBorderSize = window->WindowBorderSize;
ImU32 title_bar_col = GetColorU32((title_bar_is_highlight && !g.NavDisableHighlight) ? ImGuiCol_TitleBgActive : ImGuiCol_TitleBgCollapsed);
RenderFrame(title_bar_rect.Min, title_bar_rect.Max, title_bar_col, true, window_rounding);
g.Style.FrameBorderSize = backup_border_size;
}
else
{
// Window background
if (!(flags & ImGuiWindowFlags_NoBackground))
{
ImU32 bg_col = GetColorU32(GetWindowBgColorIdxFromFlags(flags));
float alpha = 1.0f;
if (g.NextWindowData.BgAlphaCond != 0)
alpha = g.NextWindowData.BgAlphaVal;
if (alpha != 1.0f)
bg_col = (bg_col & ~IM_COL32_A_MASK) | (IM_F32_TO_INT8_SAT(alpha) << IM_COL32_A_SHIFT);
window->DrawList->AddRectFilled(window->Pos + ImVec2(0, window->TitleBarHeight()), window->Pos + window->Size, bg_col, window_rounding, (flags & ImGuiWindowFlags_NoTitleBar) ? ImDrawCornerFlags_All : ImDrawCornerFlags_Bot);
}
g.NextWindowData.BgAlphaCond = 0;
// Title bar
if (!(flags & ImGuiWindowFlags_NoTitleBar))
{
ImU32 title_bar_col = GetColorU32(title_bar_is_highlight ? ImGuiCol_TitleBgActive : ImGuiCol_TitleBg);
window->DrawList->AddRectFilled(title_bar_rect.Min, title_bar_rect.Max, title_bar_col, window_rounding, ImDrawCornerFlags_Top);
}
// Menu bar
if (flags & ImGuiWindowFlags_MenuBar)
{
ImRect menu_bar_rect = window->MenuBarRect();
menu_bar_rect.ClipWith(window->Rect()); // Soft clipping, in particular child window don't have minimum size covering the menu bar so this is useful for them.
window->DrawList->AddRectFilled(menu_bar_rect.Min + ImVec2(window_border_size, 0), menu_bar_rect.Max - ImVec2(window_border_size, 0), GetColorU32(ImGuiCol_MenuBarBg), (flags & ImGuiWindowFlags_NoTitleBar) ? window_rounding : 0.0f, ImDrawCornerFlags_Top);
if (style.FrameBorderSize > 0.0f && menu_bar_rect.Max.y < window->Pos.y + window->Size.y)
window->DrawList->AddLine(menu_bar_rect.GetBL(), menu_bar_rect.GetBR(), GetColorU32(ImGuiCol_Border), style.FrameBorderSize);
}
// Scrollbars
if (window->ScrollbarX)
Scrollbar(ImGuiAxis_X);
if (window->ScrollbarY)
Scrollbar(ImGuiAxis_Y);
// Render resize grips (after their input handling so we don't have a frame of latency)
if (!(flags & ImGuiWindowFlags_NoResize))
{
for (int resize_grip_n = 0; resize_grip_n < resize_grip_count; resize_grip_n++)
{
const ImGuiResizeGripDef& grip = resize_grip_def[resize_grip_n];
const ImVec2 corner = ImLerp(window->Pos, window->Pos + window->Size, grip.CornerPosN);
window->DrawList->PathLineTo(corner + grip.InnerDir * ((resize_grip_n & 1) ? ImVec2(window_border_size, resize_grip_draw_size) : ImVec2(resize_grip_draw_size, window_border_size)));
window->DrawList->PathLineTo(corner + grip.InnerDir * ((resize_grip_n & 1) ? ImVec2(resize_grip_draw_size, window_border_size) : ImVec2(window_border_size, resize_grip_draw_size)));
window->DrawList->PathArcToFast(ImVec2(corner.x + grip.InnerDir.x * (window_rounding + window_border_size), corner.y + grip.InnerDir.y * (window_rounding + window_border_size)), window_rounding, grip.AngleMin12, grip.AngleMax12);
window->DrawList->PathFillConvex(resize_grip_col[resize_grip_n]);
}
}
// Borders
RenderWindowOuterBorders(window);
}
}
void ImGui::RenderWindowTitleBarContents(ImGuiWindow* window, const ImRect& title_bar_rect, const char* name, bool* p_open)
{
ImGuiContext& g = *GImGui;
@ -5349,7 +5426,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
int border_held = -1;
ImU32 resize_grip_col[4] = { 0 };
const int resize_grip_count = g.IO.ConfigWindowsResizeFromEdges ? 2 : 1; // 4
const float grip_draw_size = (float)(int)ImMax(g.FontSize * 1.35f, window->WindowRounding + 1.0f + g.FontSize * 0.2f);
const float resize_grip_draw_size = (float)(int)ImMax(g.FontSize * 1.35f, window->WindowRounding + 1.0f + g.FontSize * 0.2f);
if (!window->Collapsed)
UpdateManualResize(window, size_auto_fit, &border_held, resize_grip_count, &resize_grip_col[0]);
window->ResizeBorderHeld = (signed char)border_held;
@ -5423,76 +5500,9 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
window->DrawList->AddRectFilled(bb.Min, bb.Max, GetColorU32(ImGuiCol_NavWindowingHighlight, g.NavWindowingHighlightAlpha * 0.25f), g.Style.WindowRounding);
}
// Draw window + handle manual resize
// As we highlight the title bar when want_focus is set, multiple reappearing windows will have have their title bar highlighted on their reappearing frame.
const float window_rounding = window->WindowRounding;
const float window_border_size = window->WindowBorderSize;
const ImGuiWindow* window_to_highlight = g.NavWindowingTarget ? g.NavWindowingTarget : g.NavWindow;
const bool title_bar_is_highlight = want_focus || (window_to_highlight && window->RootWindowForTitleBarHighlight == window_to_highlight->RootWindowForTitleBarHighlight);
if (window->Collapsed)
{
// Title bar only
float backup_border_size = style.FrameBorderSize;
g.Style.FrameBorderSize = window->WindowBorderSize;
ImU32 title_bar_col = GetColorU32((title_bar_is_highlight && !g.NavDisableHighlight) ? ImGuiCol_TitleBgActive : ImGuiCol_TitleBgCollapsed);
RenderFrame(title_bar_rect.Min, title_bar_rect.Max, title_bar_col, true, window_rounding);
g.Style.FrameBorderSize = backup_border_size;
}
else
{
// Window background
if (!(flags & ImGuiWindowFlags_NoBackground))
{
ImU32 bg_col = GetColorU32(GetWindowBgColorIdxFromFlags(flags));
float alpha = 1.0f;
if (g.NextWindowData.BgAlphaCond != 0)
alpha = g.NextWindowData.BgAlphaVal;
if (alpha != 1.0f)
bg_col = (bg_col & ~IM_COL32_A_MASK) | (IM_F32_TO_INT8_SAT(alpha) << IM_COL32_A_SHIFT);
window->DrawList->AddRectFilled(window->Pos + ImVec2(0, window->TitleBarHeight()), window->Pos + window->Size, bg_col, window_rounding, (flags & ImGuiWindowFlags_NoTitleBar) ? ImDrawCornerFlags_All : ImDrawCornerFlags_Bot);
}
g.NextWindowData.BgAlphaCond = 0;
// Title bar
if (!(flags & ImGuiWindowFlags_NoTitleBar))
{
ImU32 title_bar_col = GetColorU32(title_bar_is_highlight ? ImGuiCol_TitleBgActive : ImGuiCol_TitleBg);
window->DrawList->AddRectFilled(title_bar_rect.Min, title_bar_rect.Max, title_bar_col, window_rounding, ImDrawCornerFlags_Top);
}
// Menu bar
if (flags & ImGuiWindowFlags_MenuBar)
{
ImRect menu_bar_rect = window->MenuBarRect();
menu_bar_rect.ClipWith(window->Rect()); // Soft clipping, in particular child window don't have minimum size covering the menu bar so this is useful for them.
window->DrawList->AddRectFilled(menu_bar_rect.Min+ImVec2(window_border_size,0), menu_bar_rect.Max-ImVec2(window_border_size,0), GetColorU32(ImGuiCol_MenuBarBg), (flags & ImGuiWindowFlags_NoTitleBar) ? window_rounding : 0.0f, ImDrawCornerFlags_Top);
if (style.FrameBorderSize > 0.0f && menu_bar_rect.Max.y < window->Pos.y + window->Size.y)
window->DrawList->AddLine(menu_bar_rect.GetBL(), menu_bar_rect.GetBR(), GetColorU32(ImGuiCol_Border), style.FrameBorderSize);
}
// Scrollbars
if (window->ScrollbarX)
Scrollbar(ImGuiAxis_X);
if (window->ScrollbarY)
Scrollbar(ImGuiAxis_Y);
// Render resize grips (after their input handling so we don't have a frame of latency)
if (!(flags & ImGuiWindowFlags_NoResize))
{
for (int resize_grip_n = 0; resize_grip_n < resize_grip_count; resize_grip_n++)
{
const ImGuiResizeGripDef& grip = resize_grip_def[resize_grip_n];
const ImVec2 corner = ImLerp(window->Pos, window->Pos + window->Size, grip.CornerPosN);
window->DrawList->PathLineTo(corner + grip.InnerDir * ((resize_grip_n & 1) ? ImVec2(window_border_size, grip_draw_size) : ImVec2(grip_draw_size, window_border_size)));
window->DrawList->PathLineTo(corner + grip.InnerDir * ((resize_grip_n & 1) ? ImVec2(grip_draw_size, window_border_size) : ImVec2(window_border_size, grip_draw_size)));
window->DrawList->PathArcToFast(ImVec2(corner.x + grip.InnerDir.x * (window_rounding + window_border_size), corner.y + grip.InnerDir.y * (window_rounding + window_border_size)), window_rounding, grip.AngleMin12, grip.AngleMax12);
window->DrawList->PathFillConvex(resize_grip_col[resize_grip_n]);
}
}
// Borders
RenderWindowOuterBorders(window);
}
RenderWindowDecorations(window, title_bar_rect, title_bar_is_highlight, resize_grip_count, resize_grip_col, resize_grip_draw_size);
// Draw navigation selection/windowing rectangle border
if (g.NavWindowingTargetAnim == window)