renderer.h

很牛的GUI源码wxWidgets-2.8.0.zip 可在多种平台下运行.

                                   const wxString& label,
                                   const wxBitmap& bitmap,
                                   const wxRect& rect,
                                   int flags = 0,
                                   long style = 0,
                                   int tbarStyle = 0)
        { m_renderer->DrawToolBarButton(dc, label, bitmap, rect, flags, style, tbarStyle); }
#endif // wxUSE_TOOLBAR

#if wxUSE_TEXTCTRL
    virtual void DrawTextLine(wxDC& dc,
                              const wxString& text,
                              const wxRect& rect,
                              int selStart = -1,
                              int selEnd = -1,
                              int flags = 0)
        { m_renderer->DrawTextLine(dc, text, rect, selStart, selEnd, flags); }
    virtual void DrawLineWrapMark(wxDC& dc, const wxRect& rect)
        { m_renderer->DrawLineWrapMark(dc, rect); }
#endif // wxUSE_TEXTCTRL

#if wxUSE_NOTEBOOK
    virtual void DrawTab(wxDC& dc,
                         const wxRect& rect,
                         wxDirection dir,
                         const wxString& label,
                         const wxBitmap& bitmap = wxNullBitmap,
                         int flags = 0,
                         int accel = -1)
        { m_renderer->DrawTab(dc, rect, dir, label, bitmap, flags, accel); }
#endif // wxUSE_NOTEBOOK

#if wxUSE_SLIDER

    virtual void DrawSliderShaft(wxDC& dc,
                                 const wxRect& rect,
                                 int lenThumb,
                                 wxOrientation orient,
                                 int flags = 0,
                                 long style = 0,
                                 wxRect *rectShaft = NULL)
        { m_renderer->DrawSliderShaft(dc, rect, lenThumb, orient, flags, style, rectShaft); }
    virtual void DrawSliderThumb(wxDC& dc,
                                 const wxRect& rect,
                                 wxOrientation orient,
                                 int flags = 0,
                                 long style = 0)
        { m_renderer->DrawSliderThumb(dc, rect, orient, flags, style); }
    virtual void DrawSliderTicks(wxDC& dc,
                                 const wxRect& rect,
                                 int lenThumb,
                                 wxOrientation orient,
                                 int start,
                                 int end,
                                 int WXUNUSED(step) = 1,
                                 int flags = 0,
                                 long style = 0)
        { m_renderer->DrawSliderTicks(dc, rect, lenThumb, orient,
                                      start, end, start, flags, style); }
#endif // wxUSE_SLIDER

#if wxUSE_MENUS
    virtual void DrawMenuBarItem(wxDC& dc,
                                 const wxRect& rect,
                                 const wxString& label,
                                 int flags = 0,
                                 int indexAccel = -1)
        { m_renderer->DrawMenuBarItem(dc, rect, label, flags, indexAccel); }
    virtual void DrawMenuItem(wxDC& dc,
                              wxCoord y,
                              const wxMenuGeometryInfo& gi,
                              const wxString& label,
                              const wxString& accel,
                              const wxBitmap& bitmap = wxNullBitmap,
                              int flags = 0,
                              int indexAccel = -1)
        { m_renderer->DrawMenuItem(dc, y, gi, label, accel,
                                   bitmap, flags, indexAccel); }
    virtual void DrawMenuSeparator(wxDC& dc,
                                   wxCoord y,
                                   const wxMenuGeometryInfo& geomInfo)
        { m_renderer->DrawMenuSeparator(dc, y, geomInfo); }
#endif // wxUSE_MENUS

#if wxUSE_STATUSBAR
    virtual void DrawStatusField(wxDC& dc,
                                 const wxRect& rect,
                                 const wxString& label,
                                 int flags = 0, int style = 0)
        { m_renderer->DrawStatusField(dc, rect, label, flags, style); }
#endif // wxUSE_STATUSBAR

    virtual void DrawFrameTitleBar(wxDC& dc,
                                   const wxRect& rect,
                                   const wxString& title,
                                   const wxIcon& icon,
                                   int flags,
                                   int specialButton = 0,
                                   int specialButtonFlag = 0)
        { m_renderer->DrawFrameTitleBar(dc, rect, title, icon, flags,
                                        specialButton, specialButtonFlag); }
    virtual void DrawFrameBorder(wxDC& dc,
                                 const wxRect& rect,
                                 int flags)
        { m_renderer->DrawFrameBorder(dc, rect, flags); }
    virtual void DrawFrameBackground(wxDC& dc,
                                     const wxRect& rect,
                                     int flags)
        { m_renderer->DrawFrameBackground(dc, rect, flags); }
    virtual void DrawFrameTitle(wxDC& dc,
                                const wxRect& rect,
                                const wxString& title,
                                int flags)
        { m_renderer->DrawFrameTitle(dc, rect, title, flags); }
    virtual void DrawFrameIcon(wxDC& dc,
                               const wxRect& rect,
                               const wxIcon& icon,
                               int flags)
        { m_renderer->DrawFrameIcon(dc, rect, icon, flags); }
    virtual void DrawFrameButton(wxDC& dc,
                                 wxCoord x, wxCoord y,
                                 int button,
                                 int flags = 0)
        { m_renderer->DrawFrameButton(dc, x, y, button, flags); }

#if wxUSE_COMBOBOX
    virtual void GetComboBitmaps(wxBitmap *bmpNormal,
                                 wxBitmap *bmpFocus,
                                 wxBitmap *bmpPressed,
                                 wxBitmap *bmpDisabled)
        { m_renderer->GetComboBitmaps(bmpNormal, bmpFocus,
                                      bmpPressed, bmpDisabled); }
#endif // wxUSE_COMBOBOX

    virtual void AdjustSize(wxSize *size, const wxWindow *window)
        { m_renderer->AdjustSize(size, window); }
    virtual wxRect GetBorderDimensions(wxBorder border) const
        { return m_renderer->GetBorderDimensions(border); }
    virtual bool AreScrollbarsInsideBorder() const
        { return m_renderer->AreScrollbarsInsideBorder(); }

#if wxUSE_SCROLLBAR
    virtual wxSize GetScrollbarArrowSize() const
        { return m_renderer->GetScrollbarArrowSize(); }
#endif // wxUSE_SCROLLBAR

    virtual wxCoord GetListboxItemHeight(wxCoord fontHeight)
        { return m_renderer->GetListboxItemHeight(fontHeight); }
    virtual wxSize GetCheckBitmapSize() const
        { return m_renderer->GetCheckBitmapSize(); }
    virtual wxSize GetRadioBitmapSize() const
        { return m_renderer->GetRadioBitmapSize(); }
    virtual wxCoord GetCheckItemMargin() const
        { return m_renderer->GetCheckItemMargin(); }

#if wxUSE_TOOLBAR
    virtual wxSize GetToolBarButtonSize(wxCoord *separator) const
        { return m_renderer->GetToolBarButtonSize(separator); }
    virtual wxSize GetToolBarMargin() const
        { return m_renderer->GetToolBarMargin(); }
#endif // wxUSE_TOOLBAR

#if wxUSE_TEXTCTRL
    virtual wxRect GetTextTotalArea(const wxTextCtrl *text,
                                    const wxRect& rect) const
        { return m_renderer->GetTextTotalArea(text, rect); }
    virtual wxRect GetTextClientArea(const wxTextCtrl *text,
                                     const wxRect& rect,
                                     wxCoord *extraSpaceBeyond) const
        { return m_renderer->GetTextClientArea(text, rect, extraSpaceBeyond); }
#endif // wxUSE_TEXTCTRL

#if wxUSE_NOTEBOOK
    virtual wxSize GetTabIndent() const { return m_renderer->GetTabIndent(); }
    virtual wxSize GetTabPadding() const { return m_renderer->GetTabPadding(); }
#endif // wxUSE_NOTEBOOK

#if wxUSE_SLIDER
    virtual wxCoord GetSliderDim() const
        { return m_renderer->GetSliderDim(); }
    virtual wxCoord GetSliderTickLen() const
        { return m_renderer->GetSliderTickLen(); }

    virtual wxRect GetSliderShaftRect(const wxRect& rect,
                                      int lenThumb,
                                      wxOrientation orient,
                                      long style = 0) const
        { return m_renderer->GetSliderShaftRect(rect, lenThumb, orient, style); }
    virtual wxSize GetSliderThumbSize(const wxRect& rect,
                                      int lenThumb,
                                      wxOrientation orient) const
        { return m_renderer->GetSliderThumbSize(rect, lenThumb, orient); }
#endif // wxUSE_SLIDER

    virtual wxSize GetProgressBarStep() const
        { return m_renderer->GetProgressBarStep(); }

#if wxUSE_MENUS
    virtual wxSize GetMenuBarItemSize(const wxSize& sizeText) const
        { return m_renderer->GetMenuBarItemSize(sizeText); }
    virtual wxMenuGeometryInfo *GetMenuGeometry(wxWindow *win,
                                                const wxMenu& menu) const
        { return m_renderer->GetMenuGeometry(win, menu); }
#endif // wxUSE_MENUS

#if wxUSE_STATUSBAR
    virtual wxSize GetStatusBarBorders() const
        { return m_renderer->GetStatusBarBorders(); }
    virtual wxCoord GetStatusBarBorderBetweenFields() const
        { return m_renderer->GetStatusBarBorderBetweenFields(); }
    virtual wxSize GetStatusBarFieldMargins() const
        { return m_renderer->GetStatusBarFieldMargins(); }
#endif // wxUSE_STATUSBAR

    virtual wxRect GetFrameClientArea(const wxRect& rect, int flags) const
        { return m_renderer->GetFrameClientArea(rect, flags); }
    virtual wxSize GetFrameTotalSize(const wxSize& clientSize, int flags) const
        { return m_renderer->GetFrameTotalSize(clientSize, flags); }
    virtual wxSize GetFrameMinSize(int flags) const
        { return m_renderer->GetFrameMinSize(flags); }
    virtual wxSize GetFrameIconSize() const
        { return m_renderer->GetFrameIconSize(); }
    virtual int HitTestFrame(const wxRect& rect,
                             const wxPoint& pt,
                             int flags) const
        { return m_renderer->HitTestFrame(rect, pt, flags); }

    virtual int  DrawHeaderButton(wxWindow *win,
                                  wxDC& dc,
                                  const wxRect& rect,
                                  int flags = 0,
                                  wxHeaderSortIconType sortIcon = wxHDR_SORT_ICON_NONE,
                                  wxHeaderButtonParams* params = NULL)
        { return m_renderer->DrawHeaderButton(win, dc, rect, flags, sortIcon, params); }
    virtual void DrawTreeItemButton(wxWindow *win,
                                    wxDC& dc,
                                    const wxRect& rect,
                                    int flags = 0)
        { m_renderer->DrawTreeItemButton(win, dc, rect, flags); }

protected:
    wxRenderer *m_renderer;
};

// ----------------------------------------------------------------------------
// wxControlRenderer: wraps the wxRenderer functions in a form easy to use from
// OnPaint()
// ----------------------------------------------------------------------------

class WXDLLEXPORT wxControlRenderer
{
public:
    // create a renderer for this dc with this "fundamental" renderer
    wxControlRenderer(wxWindow *control, wxDC& dc, wxRenderer *renderer);

    // operations
    void DrawLabel(const wxBitmap& bitmap = wxNullBitmap,
                   wxCoord marginX = 0, wxCoord marginY = 0);
#if wxUSE_LISTBOX
    void DrawItems(const wxListBox *listbox,
                   size_t itemFirst, size_t itemLast);
#endif // wxUSE_LISTBOX
#if wxUSE_CHECKLISTBOX
    void DrawCheckItems(const wxCheckListBox *listbox,
                        size_t itemFirst, size_t itemLast);
#endif // wxUSE_CHECKLISTBOX
    void DrawButtonBorder();
    // the line must be either horizontal or vertical
    void DrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
    void DrawFrame();
    void DrawBitmap(const wxBitmap& bitmap);
    void DrawBackgroundBitmap();
    void DrawScrollbar(const wxScrollBar *scrollbar, int thumbPosOld);
#if wxUSE_GAUGE
    void DrawProgressBar(const wxGauge *gauge);
#endif // wxUSE_GAUGE

    // accessors
    wxWindow *GetWindow() const { return m_window; }
    wxRenderer *GetRenderer() const { return m_renderer; }

    wxDC& GetDC() { return m_dc; }

    const wxRect& GetRect() const { return m_rect; }
    wxRect& GetRect() { return m_rect; }

    // static helpers
    static void DrawBitmap(wxDC &dc,
                           const wxBitmap& bitmap,
                           const wxRect& rect,
                           int alignment = wxALIGN_CENTRE |
                                           wxALIGN_CENTRE_VERTICAL,
                           wxStretch stretch = wxSTRETCH_NOT);

private:

#if wxUSE_LISTBOX
    // common part of DrawItems() and DrawCheckItems()
    void DoDrawItems(const wxListBox *listbox,
                     size_t itemFirst, size_t itemLast,
                     bool isCheckLbox = false);
#endif // wxUSE_LISTBOX

    wxWindow *m_window;
    wxRenderer *m_renderer;
    wxDC& m_dc;
    wxRect m_rect;
};

#endif // _WX_UNIV_RENDERER_H_