Theme Editor: Implemented text alignment

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27191 a1c6a512-1295-4272-9138-f99709370657

utils/themeeditor/graphics/rbviewport.cpp

@@ -33,7 +33,7 @@ RBViewport::RBViewport(skin_element* node, const RBRenderInfo& info)
     : QGraphicsItem(info.screen()), font(info.screen()->getFont(0)),
     foreground(info.screen()->foreground()),
     background(info.screen()->background()), textOffset(0,0),
-    screen(info.screen())
+    screen(info.screen()), textAlign(Left)
 {
     if(!node->tag)
     {
@@ -108,6 +108,8 @@ RBViewport::RBViewport(skin_element* node, const RBRenderInfo& info)
         size = QRectF(0, 0, w, h);
         debug = info.device()->data("showviewports").toBool();
     }
+
+    lineHeight = font->lineHeight();
 }
 
 RBViewport::~RBViewport()
@@ -142,17 +144,85 @@ void RBViewport::paint(QPainter *painter,
 
 void RBViewport::newLine()
 {
-    if(textOffset.x() > 0)
+    if(leftText.count() != 0
+       || centerText.count() != 0
+       || rightText.count() != 0)
     {
         textOffset.setY(textOffset.y() + lineHeight);
         textOffset.setX(0);
+        textAlign = Left;
+        leftText.clear();
+        rightText.clear();
+        centerText.clear();
     }
 }
 
 void RBViewport::write(QString text)
 {
-    QGraphicsItem* graphic = font->renderText(text, foreground, this);
-    graphic->setPos(textOffset.x(), textOffset.y());
-    textOffset.setX(textOffset.x() + graphic->boundingRect().width());
-    lineHeight = font->lineHeight();
+    if(textAlign == Left)
+    {
+        leftText.append(font->renderText(text, foreground, this));
+        alignLeft();
+    }
+    else if(textAlign == Center)
+    {
+        centerText.append(font->renderText(text, foreground, this));
+        alignCenter();
+    }
+    else if(textAlign == Right)
+    {
+        rightText.append(font->renderText(text, foreground, this));
+        alignRight();
+    }
 }
+
+void RBViewport::alignLeft()
+{
+    int y = textOffset.y();
+    int x = 0;
+
+    for(int i = 0; i < leftText.count(); i++)
+    {
+        leftText[i]->setPos(x, y);
+        x += leftText[i]->boundingRect().width();
+    }
+}
+
+void RBViewport::alignCenter()
+{
+    int y = textOffset.y();
+    int x = 0;
+    int width = 0;
+
+    for(int i = 0; i < centerText.count(); i++)
+        width += centerText[i]->boundingRect().width();
+
+    x = (size.width() - width) / 2;
+
+    for(int i = 0; i < centerText.count(); i++)
+    {
+        centerText[i]->setPos(x, y);
+        x += centerText[i]->boundingRect().width();
+    }
+}
+
+void RBViewport::alignRight()
+{
+
+    int y = textOffset.y();
+    int x = 0;
+    int width = 0;
+
+    for(int i = 0; i < rightText.count(); i++)
+        width += rightText[i]->boundingRect().width();
+
+    x = size.width() - width;
+
+    for(int i = 0; i < rightText.count(); i++)
+    {
+        rightText[i]->setPos(x, y);
+        x += rightText[i]->boundingRect().width();
+    }
+
+}
+

utils/themeeditor/graphics/rbviewport.h

@@ -33,6 +33,13 @@ class RBRenderInfo;
 class RBViewport : public QGraphicsItem
 {
 public:
+    enum Alignment
+    {
+        Left,
+        Center,
+        Right
+    };
+
     RBViewport(skin_element* node, const RBRenderInfo& info);
     virtual ~RBViewport();
 
@@ -48,9 +55,14 @@ public:
 
     void newLine();
     void write(QString text);
+    void alignText(Alignment align){ textAlign = align; }
 
 private:
 
+    void alignLeft();
+    void alignCenter();
+    void alignRight();
+
     QRectF size;
     RBFont* font;
     QColor foreground;
@@ -62,6 +74,11 @@ private:
     int lineHeight;
 
     RBScreen* screen;
+
+    QList<QGraphicsItem*> leftText;
+    QList<QGraphicsItem*> centerText;
+    QList<QGraphicsItem*> rightText;
+    Alignment textAlign;
 };
 
 #endif // RBVIEWPORT_H

utils/themeeditor/models/parsetreenode.cpp

@@ -590,6 +590,27 @@ bool ParseTreeNode::execTag(const RBRenderInfo& info, RBViewport* viewport)
     switch(element->tag->name[0])
     {
 
+    case 'a':
+        switch(element->tag->name[1])
+        {
+        case 'c':
+            /* %ac */
+            viewport->alignText(RBViewport::Center);
+            return true;
+
+        case 'l':
+            /* %al */
+            viewport->alignText(RBViewport::Left);
+            return true;
+
+        case 'r':
+            /* %ar */
+            viewport->alignText(RBViewport::Right);
+            return true;
+        }
+
+        break;
+
     case 'x':
         switch(element->tag->name[1])
         {