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Shadows: Added experimental texture-based shadows (stripped of dynamic tex config and back-end code)

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(merged 10 commits, removing dynamic tex config, moved tex config to internal structs, removed back-end changes)

Shadows: Added  IMGUI_HAS_SHADOWS
This commit is contained in:
Ben Carter
2020-04-24 18:16:48 +02:00
committed by ocornut
parent c71a50deb5
commit b306474a2f
5 changed files with 691 additions and 0 deletions
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14
imgui.cpp
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@ -1072,6 +1072,9 @@ ImGuiStyle::ImGuiStyle()
AntiAliasedFill = true; // Enable anti-aliased filled shapes (rounded rectangles, circles, etc.).
CurveTessellationTol = 1.25f; // Tessellation tolerance when using PathBezierCurveTo() without a specific number of segments. Decrease for highly tessellated curves (higher quality, more polygons), increase to reduce quality.
CircleTessellationMaxError = 0.30f; // Maximum error (in pixels) allowed when using AddCircle()/AddCircleFilled() or drawing rounded corner rectangles with no explicit segment count specified. Decrease for higher quality but more geometry.
WindowShadowSize = 100.0f; // Size (in pixels) of window shadows.
WindowShadowOffsetDist = 0.0f; // Offset distance (in pixels) of window shadows from casting window.
WindowShadowOffsetAngle = IM_PI * 0.25f; // Offset angle of window shadows from casting window (0.0f = left, 0.5f*PI = bottom, 1.0f*PI = right, 1.5f*PI = top).
// Default theme
ImGui::StyleColorsDark(this);
@ -2941,6 +2944,7 @@ const char* ImGui::GetStyleColorName(ImGuiCol idx)
case ImGuiCol_NavWindowingHighlight: return "NavWindowingHighlight";
case ImGuiCol_NavWindowingDimBg: return "NavWindowingDimBg";
case ImGuiCol_ModalWindowDimBg: return "ModalWindowDimBg";
case ImGuiCol_WindowShadow: return "WindowShadow";
}
IM_ASSERT(0);
return "Unknown";
@ -5759,6 +5763,14 @@ void ImGui::RenderWindowDecorations(ImGuiWindow* window, const ImRect& title_bar
window->DrawList->AddRectFilled(window->Pos + ImVec2(0, window->TitleBarHeight()), window->Pos + window->Size, bg_col, window_rounding, (flags & ImGuiWindowFlags_NoTitleBar) ? 0 : ImDrawFlags_RoundCornersBottom);
}
// Draw window shadow
if (style.WindowShadowSize > 0.0f && (!(flags & ImGuiWindowFlags_ChildWindow) || (flags & ImGuiWindowFlags_Popup)))
{
float shadow_size = style.WindowShadowSize;
ImVec2 shadow_offset = ImVec2(ImCos(style.WindowShadowOffsetAngle), ImSin(style.WindowShadowOffsetAngle)) * style.WindowShadowOffsetDist;
window->DrawList->AddShadowRect(window->Pos, window->Pos + window->Size, shadow_size, shadow_offset, GetColorU32(ImGuiCol_WindowShadow), window_rounding);
}
// Title bar
if (!(flags & ImGuiWindowFlags_NoTitleBar))
{
@ -6813,6 +6825,8 @@ void ImGui::SetCurrentFont(ImFont* font)
g.DrawListSharedData.TexUvLines = atlas->TexUvLines;
g.DrawListSharedData.Font = g.Font;
g.DrawListSharedData.FontSize = g.FontSize;
g.DrawListSharedData.ShadowRectId = atlas->ShadowRectId;
g.DrawListSharedData.ShadowRectUvs = &atlas->ShadowRectUvs[0];
}
void ImGui::PushFont(ImFont* font)