Ugly round corners when no border is drawn

When specifying round corners with QStyleSheetStyle and no border-width
specified, the round corners were not rendered with antialiasing. Furthermore,
if border-width was set to 0, part of the border was rendered in discordance
with CSS3.

The background in now rendered directly instead of drawing a clipped
rectangle. The actual border width is checked before rendering.

A test has been added at tests/auto/uiloader/baseline/css_borderradius_allwidgets.ui

Task-number: 230362
Reviewed-by: olivier

1 files changed, 433 insertions, 0 deletions

diff --git a/tests/auto/uiloader/baseline/css_borderradius_allwidgets.ui b/tests/auto/uiloader/baseline/css_borderradius_allwidgets.ui
new file mode 100644
index 0000000..96cb7f3
--- /dev/null
+++ b/tests/auto/uiloader/baseline/css_borderradius_allwidgets.ui
@@ -0,0 +1,433 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>698</width>
+    <height>589</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <property name="styleSheet">
+   <string notr="true">* { 
+	background: yellow;
+	padding: 2px;
+}
+
+QAbstractButton, QAbstractSlider {
+	background: cyan;
+}
+
+QFrame {
+	background: magenta;
+}
+
+QLineEdit, QSpinBox {
+	background: white;
+}
+
+#gb1 * {
+	border-radius: 4px;
+}
+
+#gb2 * {
+	border: 1px solid blue;
+	border-radius: 4px;
+}
+
+#gb3 * {
+	border: 0px solid blue;
+	border-radius: 4px;
+}
+
+#gb4 * {
+	border-image: url(&quot;images/pushbutton.png&quot;) 6 6 6 6;
+	border-width:6px;
+	border-radius: 4px;
+}
+</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <layout class="QGridLayout" name="gridLayout_4">
+    <item row="0" column="0">
+     <widget class="QGroupBox" name="gb1">
+      <property name="title">
+       <string>No border</string>
+      </property>
+      <layout class="QHBoxLayout" name="horizontalLayout">
+       <item>
+        <widget class="QFrame" name="frame">
+         <property name="frameShape">
+          <enum>QFrame::StyledPanel</enum>
+         </property>
+         <property name="frameShadow">
+          <enum>QFrame::Raised</enum>
+         </property>
+         <layout class="QVBoxLayout" name="verticalLayout_2">
+          <item>
+           <widget class="QPushButton" name="pushButton_4">
+            <property name="text">
+             <string>PushButton</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QSpinBox" name="spinBox_2"/>
+          </item>
+          <item>
+           <widget class="QRadioButton" name="radioButton_6">
+            <property name="text">
+             <string>RadioButton</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QCheckBox" name="checkBox_4">
+            <property name="text">
+             <string>CheckBox</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QLineEdit" name="lineEdit">
+            <property name="text">
+             <string/>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QComboBox" name="comboBox"/>
+          </item>
+         </layout>
+        </widget>
+       </item>
+       <item>
+        <widget class="QListWidget" name="listWidget_2">
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+        </widget>
+       </item>
+      </layout>
+     </widget>
+    </item>
+    <item row="1" column="0">
+     <widget class="QGroupBox" name="gb3">
+      <property name="title">
+       <string>0px border</string>
+      </property>
+      <layout class="QHBoxLayout" name="horizontalLayout_2">
+       <item>
+        <widget class="QFrame" name="frame_2">
+         <property name="frameShape">
+          <enum>QFrame::StyledPanel</enum>
+         </property>
+         <property name="frameShadow">
+          <enum>QFrame::Raised</enum>
+         </property>
+         <layout class="QVBoxLayout" name="verticalLayout_3">
+          <item>
+           <widget class="QPushButton" name="pushButton_5">
+            <property name="text">
+             <string>PushButton</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QSpinBox" name="spinBox_3"/>
+          </item>
+          <item>
+           <widget class="QRadioButton" name="radioButton_7">
+            <property name="text">
+             <string>RadioButton</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QCheckBox" name="checkBox_5">
+            <property name="text">
+             <string>CheckBox</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QLineEdit" name="lineEdit_2">
+            <property name="text">
+             <string/>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QComboBox" name="comboBox_2"/>
+          </item>
+         </layout>
+        </widget>
+       </item>
+       <item>
+        <widget class="QListWidget" name="listWidget_3">
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+        </widget>
+       </item>
+      </layout>
+     </widget>
+    </item>
+    <item row="1" column="1">
+     <widget class="QGroupBox" name="gb4">
+      <property name="title">
+       <string>border-image</string>
+      </property>
+      <layout class="QHBoxLayout" name="horizontalLayout_4">
+       <item>
+        <widget class="QFrame" name="frame_4">
+         <property name="frameShape">
+          <enum>QFrame::StyledPanel</enum>
+         </property>
+         <property name="frameShadow">
+          <enum>QFrame::Raised</enum>
+         </property>
+         <layout class="QVBoxLayout" name="verticalLayout_5">
+          <item>
+           <widget class="QPushButton" name="pushButton_7">
+            <property name="text">
+             <string>PushButton</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QSpinBox" name="spinBox_5"/>
+          </item>
+          <item>
+           <widget class="QRadioButton" name="radioButton_9">
+            <property name="text">
+             <string>RadioButton</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QCheckBox" name="checkBox_7">
+            <property name="text">
+             <string>CheckBox</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QLineEdit" name="lineEdit_4">
+            <property name="text">
+             <string/>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QComboBox" name="comboBox_4"/>
+          </item>
+         </layout>
+        </widget>
+       </item>
+       <item>
+        <widget class="QListWidget" name="listWidget_5">
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+        </widget>
+       </item>
+      </layout>
+     </widget>
+    </item>
+    <item row="0" column="1">
+     <widget class="QGroupBox" name="gb2">
+      <property name="title">
+       <string>1px border</string>
+      </property>
+      <layout class="QHBoxLayout" name="horizontalLayout_3">
+       <item>
+        <widget class="QFrame" name="frame_3">
+         <property name="frameShape">
+          <enum>QFrame::StyledPanel</enum>
+         </property>
+         <property name="frameShadow">
+          <enum>QFrame::Raised</enum>
+         </property>
+         <layout class="QVBoxLayout" name="verticalLayout_4">
+          <item>
+           <widget class="QPushButton" name="pushButton_6">
+            <property name="text">
+             <string>PushButton</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QSpinBox" name="spinBox_4"/>
+          </item>
+          <item>
+           <widget class="QRadioButton" name="radioButton_8">
+            <property name="text">
+             <string>RadioButton</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QCheckBox" name="checkBox_6">
+            <property name="text">
+             <string>CheckBox</string>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QLineEdit" name="lineEdit_3">
+            <property name="text">
+             <string/>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QComboBox" name="comboBox_3"/>
+          </item>
+         </layout>
+        </widget>
+       </item>
+       <item>
+        <widget class="QListWidget" name="listWidget_4">
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+         <item>
+          <property name="text">
+           <string>New Item</string>
+          </property>
+         </item>
+        </widget>
+       </item>
+      </layout>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>698</width>
+     <height>24</height>
+    </rect>
+   </property>
+   <widget class="QMenu" name="menuFile">
+    <property name="title">
+     <string>File</string>
+    </property>
+    <addaction name="actionOpen"/>
+    <addaction name="actionClose"/>
+   </widget>
+   <widget class="QMenu" name="menuEdit">
+    <property name="title">
+     <string>Edit</string>
+    </property>
+   </widget>
+   <addaction name="menuFile"/>
+   <addaction name="menuEdit"/>
+  </widget>
+  <widget class="QStatusBar" name="statusbar"/>
+  <action name="actionOpen">
+   <property name="text">
+    <string>Open</string>
+   </property>
+  </action>
+  <action name="actionClose">
+   <property name="text">
+    <string>Close</string>
+   </property>
+  </action>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>