faithcore/faith/style.h

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#ifndef KDE__STYLE_H
#define KDE__STYLE_H

#include <faith/painter.h>
#include <faith/pixmap.h>

namespace Faith
{

class FAITH_CORE_EXPORT Style
{
public:
        enum StyleFlags
        {
                Style_Default = 0,
                Style_Enabled = 1<< 0,
                Style_HasFocus = 1<< 1,
                Style_Raised = 1<< 2,
                Style_Sunken = 1<< 3,
                Style_ButtonDefault = 1<< 4,
                Style_On = 1<< 5,
                Style_Off = 1<< 6,
                Style_Down = 1<< 7,
                Style_MouseOver = 1<< 8,
                Style_Active = 1<< 9,
                Style_Horizontal = 1<< 10,
                Style_Vertical = 1<< 11
        };

        enum PrimitiveElement
        {
                PE_ButtonBevel,
                PE_PanelLineEdit,
                PE_ButtonDefault,
                PE_ButtonTool,
                PE_WindowFrame,
                PE_PanelPopup,
                
                PE_ScrollBarAddPage,
                PE_ScrollBarSubPage,
                PE_ScrollBarSubLine,
                PE_ScrollBarAddLine,
                PE_ScrollBarFirst,
                PE_ScrollBarLast,
                PE_ScrollBarSlider,
                PE_FocusRect,
                
                PE_ArrowUp,
                PE_ArrowDown,
                PE_ArrowLeft,
                PE_ArrowRight,
                
                PE_DockWindowHandle,
                PE_CheckMark,
                
                PE_SliderHandle,
                PE_SliderGroove,

                PE_SpinWidgetUp,
                PE_SpinWidgetDown
        };

        enum ControlElement
        {
                CE_PushButton,
                CE_PushButtonLabel,
                CE_ToolButtonLabel,
                CE_MenuBarItem,
                CE_PopupMenuItem
        };
        
        enum ComplexControl
        {
                CC_ScrollBar,
                CC_ToolButton,
                CC_Slider,
                CC_ComboBox
        };
        
        enum SubControl
        {
                SC_None = 0,
                
                SC_ScrollBarAddLine = 1 << 0,
                SC_ScrollBarSubLine = 1 << 1,
                SC_ScrollBarAddPage = 1 << 2,
                SC_ScrollBarSubPage = 1 << 3,
                SC_ScrollBarFirst = 1 << 4,
                SC_ScrollBarLast = 1 << 5,
                SC_ScrollBarSlider = 1 << 6,
                SC_ScrollBarGroove = 1 << 7,
                
                SC_ToolButton = 1 << 8,
                SC_ToolButtonMenu = 1 << 9,
                
                SC_SliderHandle = 1 << 10,
                SC_SliderGroove = 1 << 11,
                SC_SliderAddPage = 1 << 12,
                SC_SliderSubPage = 1 << 13,
                
                SC_ComboBoxEditField = 1 << 14,
                SC_ComboBoxArrow = 1 << 15,
                SC_ComboBoxFrame = 1 << 16,
                SC_ComboBoxListBoxPopup = 1 << 17
        };
        
        enum PixelMetrics
        {
                PM_ButtonMargin,
                PM_ButtonShiftVertical,
                PM_ButtonShiftHorizontal,
                PM_LineEditMargin,
                PM_ScrollBarExtent,
                PM_ScrollBarSliderMin,
                PM_MenuBarItemSpacing,
                PM_SliderExtent,
                PM_SliderHandleExtent,
                PM_DefaultFrameWidth
        };

        enum SubRect
        {
                SR_PushButtonContents,
                SR_ToolButtonContents,
                SR_DockWindowHandleRect,
                SR_ComboBoxFocusRect
        };

        enum ContentsType
        {
                CT_PopupMenuItem,
                CT_ToolButton
        };

        Style();
        virtual ~Style();

        virtual void polish(Faith::Widget *w)=0;// { (void)w; }
        virtual void unpolish(Faith::Widget *w)=0;// { (void)w; }


        virtual void drawControl(
                        ControlElement which, Painter *with, const Widget *what,
                        const ColorGroup &cg, const Rect &where, unsigned int flags = 0, void *opt=0
                )=0;
                
        virtual void drawComplexControl(
                        ComplexControl which,
                        Painter *with,
                        const Widget *what,
                        const Rect &where,
                        const ColorGroup &cg,
                        unsigned int flags,
                        unsigned int controls,
                        SubControl active,
                        void *opt=0
                )=0;
        
        virtual void drawPrimitive(
                        PrimitiveElement which, Painter *with, const Rect &where,
                        const ColorGroup &cg, unsigned int flags = 0, void *opt=0
                )=0;

        virtual void drawItem(
                        Painter *with, const Rect &where, int textflags, const ColorGroup &cg,
                        bool enabled, const Pixmap &pixmap, const String &text, int len,
                        const Faith::Color &color
                );
        virtual int pixelMetric(PixelMetrics which, const Widget *what) const=0;

        virtual Faith::Rect subRect(SubRect subrect, const Widget *widget) const=0;

        virtual Faith::Style::SubControl querySubControl(
                ComplexControl control,
                const Widget *widget,
                const Point &at,
                void *opt=0
        ) const=0;
        
        virtual Faith::Rect querySubControlMetrics(
                        ComplexControl control,
                        const Widget *widget,
                        SubControl sc,
                        void *opt=0
                ) const=0;
        
        virtual Faith::Size sizeFromContents(
                        ContentsType t,
                        const Widget *widget,
                        const Size &s,
                        const void *opt=0
                ) const=0;

        // TODO ???
        static Faith::Rect visualRect(const Rect &rect, const Widget *)
        {
                return rect;
        }
};

}

#endif

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