[Qt] V1.40 and other problems

[Павел Ишенин]

Den Jean wrote:
> On Thursday 05 July 2007 12:28:53 pm Павел Ишенин wrote:
>   
>> Second problem are still with QStyleOptions. I need some way to set
>> variables of that class (I really dont know what is the variables of
>> class and how they differ from properties).
>>     
>
> http://www.lazarus.freepascal.org/pipermail/qt/2007-June/000309.html
>
> I already answered how and asked for sample code to test the typecasting.
> This is an enormous work: manually translate C structs into binary 
> equivalent pascal record types. I would start with the ones you plan to use.
>
>   
Sorry, I have no non LCL program to test. I even dont know how to do it, 
but I will try.
> I also asked some code to see what you are up to. Do you realize that some
> stuff needs method overriding (no events available). Will you need method overriding of QStyle? 
>   
I dont know without working example, but I suppose that yes.
> Currently the binding does not support this in general (automatically generate this). 
> For stuff like this a manually created class can be incorporated.
> But again, what are you up to, what do you need?
>
> There are 22 virtual methods to override. Any priorities :-)
>
> grep -i virtual src/gui/styles/qstyle.h
>     virtual ~QStyle();
>     virtual void polish(QWidget *);
>     virtual void unpolish(QWidget *);
>     virtual void polish(QApplication *);
>     virtual void unpolish(QApplication *);
>     virtual void polish(QPalette &);
>     virtual QRect itemTextRect(const QFontMetrics &fm, const QRect &r,
>     virtual QRect itemPixmapRect(const QRect &r, int flags, const QPixmap &pixmap) const;
>     virtual void drawItemText(QPainter *painter, const QRect &rect,
>     virtual void drawItemPixmap(QPainter *painter, const QRect &rect,
>     virtual QPalette standardPalette() const;
>     virtual void drawPrimitive(PrimitiveElement pe, const QStyleOption *opt, QPainter *p,
>     virtual void drawControl(ControlElement element, const QStyleOption *opt, QPainter *p,
>     virtual QRect subElementRect(SubElement subElement, const QStyleOption *option,
>     virtual void drawComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, QPainter *p,
>     virtual SubControl hitTestComplexControl(ComplexControl cc, const QStyleOptionComplex *opt,
>     virtual QRect subControlRect(ComplexControl cc, const QStyleOptionComplex *opt,
>     virtual int pixelMetric(PixelMetric metric, const QStyleOption *option = 0,
>     virtual QSize sizeFromContents(ContentsType ct, const QStyleOption *opt,
>     virtual int styleHint(StyleHint stylehint, const QStyleOption *opt = 0,
>     virtual QPixmap standardPixmap(StandardPixmap standardPixmap, const QStyleOption *opt = 0,
>     virtual QPixmap generatedIconPixmap(QIcon::Mode iconMode, const QPixmap &pixmap,
>   
Priorities are:
  drawControl
  drawComplexControl
  drawPrimitive
  drawItemText

> And I already copied the definitions of C structs (the non method part of the classes) 
> in preparation of the manual translation.
> Any priorities ?
>
> class Q_GUI_EXPORT QStyleOption
>     int version;
>     int type;
>     QStyle::State state;
>     Qt::LayoutDirection direction;
>     QRect rect;
>     QFontMetrics fontMetrics;
>     QPalette palette;
> class Q_GUI_EXPORT QStyleOptionFocusRect : public QStyleOption
>     QColor backgroundColor;
> class Q_GUI_EXPORT QStyleOptionFrame : public QStyleOption
>     int lineWidth;
>     int midLineWidth;
> class Q_GUI_EXPORT QStyleOptionFrameV2 : public QStyleOptionFrame
>     FrameFeatures features;
> class Q_GUI_EXPORT QStyleOptionTabWidgetFrame : public QStyleOption
>     int lineWidth;
>     int midLineWidth;
>     QTabBar::Shape shape;
>     QSize tabBarSize;
>     QSize rightCornerWidgetSize;
>     QSize leftCornerWidgetSize;
> class Q_GUI_EXPORT QStyleOptionTabBarBase : public QStyleOption
>     QTabBar::Shape shape;
>     QRect tabBarRect;
>     QRect selectedTabRect;
> class Q_GUI_EXPORT QStyleOptionHeader : public QStyleOption
>     int section;
>     QString text;
>     Qt::Alignment textAlignment;
>     QIcon icon;
>     Qt::Alignment iconAlignment;
>     SectionPosition position;
>     SelectedPosition selectedPosition;
>     SortIndicator sortIndicator;
>     Qt::Orientation orientation;
> class Q_GUI_EXPORT QStyleOptionButton : public QStyleOption
>     ButtonFeatures features;
>     QString text;
>     QIcon icon;
>     QSize iconSize;
> class Q_GUI_EXPORT QStyleOptionTab : public QStyleOption
>     QTabBar::Shape shape;
>     QString text;
>     QIcon icon;
>     int row;
>     TabPosition position;
>     SelectedPosition selectedPosition;
>     CornerWidgets cornerWidgets;
> class Q_GUI_EXPORT QStyleOptionTabV2 : public QStyleOptionTab
>     QSize iconSize;
> class Q_GUI_EXPORT QStyleOptionToolBar : public QStyleOption
>     ToolBarPosition positionOfLine; // The toolbar line position
>     ToolBarPosition positionWithinLine; // The position within a toolbar
>     Qt::ToolBarArea toolBarArea; // The toolbar docking area
>     ToolBarFeatures features;
>     int lineWidth;
>     int midLineWidth;
> class Q_GUI_EXPORT QStyleOptionProgressBar : public QStyleOption
>     int minimum;
>     int maximum;
>     int progress;
>     QString text;
>     Qt::Alignment textAlignment;
>     bool textVisible;
> class Q_GUI_EXPORT QStyleOptionProgressBarV2 : public QStyleOptionProgressBar
>     Qt::Orientation orientation;
>     bool invertedAppearance;
>     bool bottomToTop;
> class Q_GUI_EXPORT QStyleOptionMenuItem : public QStyleOption
>     MenuItemType menuItemType;
>     CheckType checkType;
>     bool checked;
>     bool menuHasCheckableItems;
>     QRect menuRect;
>     QString text;
>     QIcon icon;
>     int maxIconWidth;
>     int tabWidth;
>     QFont font;
> class Q_GUI_EXPORT QStyleOptionQ3ListViewItem : public QStyleOption
>     Q3ListViewItemFeatures features;
>     int height;
>     int totalHeight;
>     int itemY;
>     int childCount;
> class Q_GUI_EXPORT QStyleOptionQ3DockWindow : public QStyleOption
>     bool docked;
>     bool closeEnabled;
> class Q_GUI_EXPORT QStyleOptionDockWidget : public QStyleOption
>     QString title;
>     bool closable;
>     bool movable;
>     bool floatable;
> class Q_GUI_EXPORT QStyleOptionDockWidgetV2 : public QStyleOptionDockWidget
>     bool verticalTitleBar;
> class Q_GUI_EXPORT QStyleOptionViewItem : public QStyleOption
>     Qt::Alignment displayAlignment;
>     Qt::Alignment decorationAlignment;
>     Qt::TextElideMode textElideMode;
>     Position decorationPosition;
>     QSize decorationSize;
>     QFont font;
>     bool showDecorationSelected;
> class Q_GUI_EXPORT QStyleOptionViewItemV2 : public QStyleOptionViewItem
>     ViewItemFeatures features;
> class Q_GUI_EXPORT QStyleOptionViewItemV3 : public QStyleOptionViewItemV2
>     QLocale locale;
>     const QWidget *widget;
> class Q_GUI_EXPORT QStyleOptionToolBox : public QStyleOption
>     QString text;
>     QIcon icon;
> class Q_GUI_EXPORT QStyleOptionToolBoxV2 : public QStyleOptionToolBox
>     TabPosition position;
>     SelectedPosition selectedPosition;
> class Q_GUI_EXPORT QStyleOptionRubberBand : public QStyleOption
>     QRubberBand::Shape shape;
>     bool opaque;
> class Q_GUI_EXPORT QStyleOptionComplex : public QStyleOption
>     QStyle::SubControls subControls;
>     QStyle::SubControls activeSubControls;
> class Q_GUI_EXPORT QStyleOptionSlider : public QStyleOptionComplex
>     Qt::Orientation orientation;
>     int minimum;
>     int maximum;
>     QSlider::TickPosition tickPosition;
>     int tickInterval;
>     bool upsideDown;
>     int sliderPosition;
>     int sliderValue;
>     int singleStep;
>     int pageStep;
>     qreal notchTarget;
>     bool dialWrapping;
> class Q_GUI_EXPORT QStyleOptionSpinBox : public QStyleOptionComplex
>     QAbstractSpinBox::ButtonSymbols buttonSymbols;
>     QAbstractSpinBox::StepEnabled stepEnabled;
>     bool frame;
> class Q_GUI_EXPORT QStyleOptionQ3ListView : public QStyleOptionComplex
>     QList<QStyleOptionQ3ListViewItem> items;
>     QPalette viewportPalette;
>     QPalette::ColorRole viewportBGRole;
>     int sortColumn;
>     int itemMargin;
>     int treeStepSize;
>     bool rootIsDecorated;
> class Q_GUI_EXPORT QStyleOptionToolButton : public QStyleOptionComplex
>     ToolButtonFeatures features;
>     QIcon icon;
>     QSize iconSize;
>     QString text;
>     Qt::ArrowType arrowType;
>     Qt::ToolButtonStyle toolButtonStyle;
>     QPoint pos;
>     QFont font;
> class Q_GUI_EXPORT QStyleOptionComboBox : public QStyleOptionComplex
>     bool editable;
>     QRect popupRect;
>     bool frame;
>     QString currentText;
>     QIcon currentIcon;
>     QSize iconSize;
> class Q_GUI_EXPORT QStyleOptionTitleBar : public QStyleOptionComplex
>     QString text;
>     QIcon icon;
>     int titleBarState;
>     Qt::WindowFlags titleBarFlags;
> class Q_GUI_EXPORT QStyleOptionGroupBox : public QStyleOptionComplex
>     QStyleOptionFrameV2::FrameFeatures features;
>     QString text;
>     Qt::Alignment textAlignment;
>     QColor textColor;
>     int lineWidth;
>     int midLineWidth;
> class Q_GUI_EXPORT QStyleOptionSizeGrip : public QStyleOptionComplex
>     Qt::Corner corner;
> class Q_GUI_EXPORT QStyleOptionGraphicsItem : public QStyleOption
>     QRectF exposedRect;
>     QMatrix matrix;
>     qreal levelOfDetail;
> class Q_GUI_EXPORT QStyleHintReturn {
>     int version;
>     int type;
> class Q_GUI_EXPORT QStyleHintReturnMask : public QStyleHintReturn {
>     QRegion region;
> class Q_GUI_EXPORT QStyleHintReturnVariant : public QStyleHintReturn {
>     QVariant variant;
>
>   

Priorities are:

QStyleOption:
  int version;
  QStyle::State state;
  QRect rect;

QStyleOptionButton:
  ButtonFeatures features;

I have no non-LCL test as I said, but you can look at how code will be 
used. I already commited unit to lazarus svn: lcl\interfaces\qt\qtthemes.pas

Best regards,
Paul Ishenin.