Style: Added GrabRounding (works well with AA branch). Followup to #212

imgui.cpp

@@ -616,6 +616,7 @@ ImGuiStyle::ImGuiStyle()
     ScrollbarWidth          = 16.0f;            // Width of the vertical scrollbar
     ScrollbarRounding       = 0.0f;             // Radius of grab corners rounding for scrollbar
     GrabMinSize             = 10.0f;            // Minimum width/height of a grab box for slider/scrollbar
+    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.
 
@@ -5926,7 +5927,7 @@ static bool SliderBehavior(const ImRect& frame_bb, ImGuiID id, float* v, float v
         grab_bb = ImRect(ImVec2(grab_pos - grab_sz*0.5f, frame_bb.Min.y + 2.0f), ImVec2(grab_pos + grab_sz*0.5f, frame_bb.Max.y - 2.0f));
     else
         grab_bb = ImRect(ImVec2(frame_bb.Min.x + 2.0f, grab_pos - grab_sz*0.5f), ImVec2(frame_bb.Max.x - 2.0f, grab_pos + grab_sz*0.5f));
-    window->DrawList->AddRectFilled(grab_bb.Min, grab_bb.Max, window->Color(g.ActiveId == id ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab));
+    window->DrawList->AddRectFilled(grab_bb.Min, grab_bb.Max, window->Color(g.ActiveId == id ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab), style.GrabRounding);
 
     return value_changed;
 }
@@ -10742,6 +10743,7 @@ void ImGui::ShowStyleEditor(ImGuiStyle* ref)
         ImGui::SliderFloat("ScrollbarWidth", &style.ScrollbarWidth, 1.0f, 20.0f, "%.0f");
         ImGui::SliderFloat("ScrollbarRounding", &style.ScrollbarRounding, 0.0f, 16.0f, "%.0f");
         ImGui::SliderFloat("GrabMinSize", &style.GrabMinSize, 1.0f, 20.0f, "%.0f");
+        ImGui::SliderFloat("GrabRounding", &style.GrabRounding, 0.0f, 16.0f, "%.0f");
         ImGui::TreePop();
     }
 

imgui.h

@@ -612,6 +612,7 @@ struct ImGuiStyle
     float       ScrollbarWidth;             // Width of the vertical scrollbar
     float       ScrollbarRounding;          // Radius of grab corners for scrollbar
     float       GrabMinSize;                // Minimum width/height of a grab box for slider/scrollbar
+    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.
     ImVec4      Colors[ImGuiCol_COUNT];