Theme Editor: Removed markup comments from CodeEditor files (it was originally a Nokia example, so it was marked up with comments for their documentation), implemented the beginnings of drag and drop editing. Viewports are now movable, but don't invoke code generation yet

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27675 a1c6a512-1295-4272-9138-f99709370657

utils/themeeditor/graphics/rbviewport.cpp

@@ -21,6 +21,11 @@
 
 #include <QPainter>
 #include <QPainterPath>
+#include <QGraphicsSceneMouseEvent>
+#include <QTransform>
+
+#include <QDebug>
+
 #include <cmath>
 
 #include "rbviewport.h"
@@ -40,6 +45,8 @@ RBViewport::RBViewport(skin_element* node, const RBRenderInfo& info)
     statusBarTexture(":/render/statusbar.png"),
     leftGraphic(0), centerGraphic(0), rightGraphic(0), scrollTime(0)
 {
+    setFlags(ItemIsSelectable | ItemIsMovable | ItemSendsGeometryChanges);
+
     if(!node->tag)
     {
         /* Default viewport takes up the entire screen */
@@ -290,6 +297,26 @@ void RBViewport::showPlaylist(const RBRenderInfo &info, int start,
     }
 }
 
+QVariant RBViewport::itemChange(GraphicsItemChange change,
+                                const QVariant &value)
+{
+    if(change == ItemPositionChange)
+    {
+        QPointF pos = value.toPointF();
+        QRectF bound = parentItem()->boundingRect();
+
+        pos.setX(qMax(0., pos.x()));
+        pos.setX(qMin(pos.x(), bound.width() - boundingRect().width()));
+
+        pos.setY(qMax(0., pos.y()));
+        pos.setY(qMin(pos.y(), bound.height() - boundingRect().height()));
+
+        return pos;
+    }
+
+    return QGraphicsItem::itemChange(change, value);
+}
+
 void RBViewport::alignLeft()
 {
     int y = textOffset.y();

utils/themeeditor/graphics/rbviewport.h

@@ -77,6 +77,9 @@ public:
     void showPlaylist(const RBRenderInfo& info, int start, skin_element* id3,
                       skin_element* noId3);
 
+protected:
+    QVariant itemChange(GraphicsItemChange change, const QVariant &value);
+
 private:
 
     void alignLeft();

utils/themeeditor/gui/codeeditor.cpp

@@ -38,8 +38,6 @@
 
 #include "codeeditor.h"
 
-//![constructor]
-
 CodeEditor::CodeEditor(QWidget *parent)
     : QPlainTextEdit(parent), completer(this)
 {
@@ -58,10 +56,6 @@ CodeEditor::CodeEditor(QWidget *parent)
     settings.beginGroup("CodeEditor");
 }
 
-//![constructor]
-
-//![extraAreaWidth]
-
 int CodeEditor::lineNumberAreaWidth()
 {
     int digits = 1;
@@ -76,19 +70,12 @@ int CodeEditor::lineNumberAreaWidth()
     return space;
 }
 
-//![extraAreaWidth]
-
-//![slotUpdateExtraAreaWidth]
 
 void CodeEditor::updateLineNumberAreaWidth(int /* newBlockCount */)
 { 
     setViewportMargins(lineNumberAreaWidth(), 0, 0, 0);
 }
 
-//![slotUpdateExtraAreaWidth]
-
-//![slotUpdateRequest]
-
 void CodeEditor::updateLineNumberArea(const QRect &rect, int dy)
 {
     if (dy)
@@ -100,8 +87,6 @@ void CodeEditor::updateLineNumberArea(const QRect &rect, int dy)
         updateLineNumberAreaWidth(0);
 }
 
-//![slotUpdateRequest]
-
 void CodeEditor::cursorMoved()
 {
     /* Closing the completer if the cursor has moved out of its bounds */
@@ -138,8 +123,6 @@ void CodeEditor::insertTag()
     completer.hide();
 }
 
-//![resizeEvent]
-
 void CodeEditor::resizeEvent(QResizeEvent *e)
 {
     QPlainTextEdit::resizeEvent(e);
@@ -149,8 +132,6 @@ void CodeEditor::resizeEvent(QResizeEvent *e)
                                       lineNumberAreaWidth(), cr.height()));
 }
 
-//![resizeEvent]
-
 void CodeEditor::keyPressEvent(QKeyEvent *event)
 {
 
@@ -256,23 +237,16 @@ void CodeEditor::keyPressEvent(QKeyEvent *event)
 
 }
 
-//![extraAreaPaintEvent_0]
-
 void CodeEditor::lineNumberAreaPaintEvent(QPaintEvent *event)
 {
     QPainter painter(lineNumberArea);
     painter.fillRect(event->rect(), Qt::lightGray);
 
-//![extraAreaPaintEvent_0]
-
-//![extraAreaPaintEvent_1]
     QTextBlock block = firstVisibleBlock();
     int blockNumber = block.blockNumber();
     int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
     int bottom = top + (int) blockBoundingRect(block).height();
-//![extraAreaPaintEvent_1]
 
-//![extraAreaPaintEvent_2]
     while (block.isValid() && top <= event->rect().bottom()) {
         if (block.isVisible() && bottom >= event->rect().top()) {
             QString number = QString::number(blockNumber + 1);
@@ -293,5 +267,4 @@ void CodeEditor::lineNumberAreaPaintEvent(QPaintEvent *event)
         ++blockNumber;
     }
 }
-//![extraAreaPaintEvent_2]
 

utils/themeeditor/gui/codeeditor.h

@@ -51,8 +51,6 @@ QT_END_NAMESPACE
 
 class LineNumberArea;
 
-//![codeeditordefinition]
-
 class CodeEditor : public QPlainTextEdit
 {
     Q_OBJECT
@@ -91,9 +89,6 @@ private:
     int docLength;
 };
 
-//![codeeditordefinition]
-//![extraarea]
-
 class LineNumberArea : public QWidget
 {
 public:
@@ -114,6 +109,4 @@ private:
     CodeEditor *codeEditor;
 };
 
-//![extraarea]
-
 #endif

utils/themeeditor/gui/skinviewer.cpp

@@ -35,7 +35,6 @@ SkinViewer::SkinViewer(QWidget *parent) :
     QObject::connect(ui->zoomEvenButton, SIGNAL(pressed()),
                      this, SLOT(zoomEven()));
 
-    ui->viewer->setDragMode(QGraphicsView::ScrollHandDrag);
 }
 
 SkinViewer::~SkinViewer()