AA branch: added style.AntiAliasedLines, style.AntiAliasedShapes (#133)

imgui.cpp

@@ -620,6 +620,8 @@ ImGuiStyle::ImGuiStyle()
     GrabRounding            = 0.0f;             // Radius of grabs corners rounding. Set to 0.0f to have rectangular slider grabs.
     DisplayWindowPadding    = ImVec2(22,22);    // Window positions are clamped to be visible within the display area by at least this amount. Only covers regular windows.
     DisplaySafeAreaPadding  = ImVec2(4,4);      // If you cannot see the edge of your screen (e.g. on a TV) increase the safe area padding. Covers popups/tooltips as well regular windows.
+    AntiAliasedLines        = true;             // Enable anti-aliasing on lines/borders. Disable if you are really short on CPU/GPU.
+    AntiAliasedShapes       = true;             // Enable anti-aliasing on filled shapes (rounded rectangles, circles, etc.)
 
     Colors[ImGuiCol_Text]                   = ImVec4(0.90f, 0.90f, 0.90f, 1.00f);
     Colors[ImGuiCol_TextDisabled]           = ImVec4(0.60f, 0.60f, 0.60f, 1.00f);
@@ -9103,6 +9105,8 @@ void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32
         return;
 
     const ImVec2 uv = GImGui->FontTexUvWhitePixel;
+    anti_aliased &= GImGui->Style.AntiAliasedLines;
+    //if (ImGui::GetIO().KeyCtrl) anti_aliased = false;
 
     int start = 0, count = points_count;
     if (!closed)
@@ -9111,8 +9115,6 @@ void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32
         count = points_count-1;
     }
 
-    //if (ImGui::GetIO().KeyCtrl) anti_aliased = false;
-
     if (anti_aliased)
     {
         // Anti-aliased stroke
@@ -9221,7 +9223,7 @@ void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32
 void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col, bool anti_aliased)
 {
     const ImVec2 uv = GImGui->FontTexUvWhitePixel;
-
+    anti_aliased &= GImGui->Style.AntiAliasedShapes;
     //if (ImGui::GetIO().KeyCtrl) anti_aliased = false;
 
     if (anti_aliased)
@@ -10821,6 +10823,13 @@ void ImGui::ShowStyleEditor(ImGuiStyle* ref)
 
     ImGui::PushItemWidth(ImGui::GetWindowWidth() * 0.55f);
 
+    if (ImGui::TreeNode("Rendering"))
+    {
+        ImGui::Checkbox("Anti-aliased lines", &style.AntiAliasedLines);
+        ImGui::Checkbox("Anti-aliased shapes", &style.AntiAliasedShapes);
+        ImGui::TreePop();
+    }
+
     if (ImGui::TreeNode("Sizes"))
     {
         ImGui::SliderFloat("Alpha", &style.Alpha, 0.20f, 1.0f, "%.2f");                 // Not exposing zero here so user doesn't "lose" the UI. But application code could have a toggle to switch between zero and non-zero.

imgui.h

@@ -630,6 +630,8 @@ struct ImGuiStyle
     float       GrabRounding;               // Radius of grabs corners rounding. Set to 0.0f to have rectangular slider grabs.
     ImVec2      DisplayWindowPadding;       // Window positions are clamped to be visible within the display area by at least this amount. Only covers regular windows.
     ImVec2      DisplaySafeAreaPadding;     // If you cannot see the edge of your screen (e.g. on a TV) increase the safe area padding. Covers popups/tooltips as well regular windows.
+    bool        AntiAliasedLines;           // Enable anti-aliasing on lines/borders. Disable if you are really tight on CPU/GPU.
+    bool        AntiAliasedShapes;          // Enable anti-aliasing on filled shapes (rounded rectangles, circles, etc.)
     ImVec4      Colors[ImGuiCol_COUNT];
 
     IMGUI_API ImGuiStyle();