win32.cpp

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

///////////////////////////////////////////////////////////////////////////////
// Name:        src/univ/themes/win32.cpp
// Purpose:     wxUniversal theme implementing Win32-like LNF
// Author:      Vadim Zeitlin
// Modified by:
// Created:     06.08.00
// RCS-ID:      $Id: win32.cpp,v 1.102 2006/10/30 12:33:25 VS Exp $
// Copyright:   (c) 2000 SciTech Software, Inc. (www.scitechsoft.com)
// Licence:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

// ===========================================================================
// declarations
// ===========================================================================

// ---------------------------------------------------------------------------
// headers
// ---------------------------------------------------------------------------

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#include "wx/univ/theme.h"

#if wxUSE_THEME_WIN32

#ifndef WX_PRECOMP
    #include "wx/timer.h"
    #include "wx/intl.h"
    #include "wx/dc.h"
    #include "wx/window.h"

    #include "wx/dcmemory.h"

    #include "wx/button.h"
    #include "wx/bmpbuttn.h"
    #include "wx/listbox.h"
    #include "wx/checklst.h"
    #include "wx/combobox.h"
    #include "wx/scrolbar.h"
    #include "wx/slider.h"
    #include "wx/textctrl.h"
    #include "wx/toolbar.h"
    #include "wx/statusbr.h"

    #ifdef __WXMSW__
        // for COLOR_* constants
        #include "wx/msw/private.h"
    #endif
    #include "wx/menu.h"
    #include "wx/settings.h"
    #include "wx/toplevel.h"
    #include "wx/image.h"
#endif // WX_PRECOMP

#include "wx/notebook.h"
#include "wx/spinbutt.h"
#include "wx/artprov.h"
#ifdef wxUSE_TOGGLEBTN
#include "wx/tglbtn.h"
#endif // wxUSE_TOGGLEBTN

#include "wx/univ/scrtimer.h"
#include "wx/univ/stdrend.h"
#include "wx/univ/inpcons.h"
#include "wx/univ/inphand.h"
#include "wx/univ/colschem.h"

// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------

static const int BORDER_THICKNESS = 2;

static const size_t NUM_STATUSBAR_GRIP_BANDS = 3;
static const size_t WIDTH_STATUSBAR_GRIP_BAND = 4;
static const size_t STATUSBAR_GRIP_SIZE =
    WIDTH_STATUSBAR_GRIP_BAND*NUM_STATUSBAR_GRIP_BANDS;

static const wxCoord SLIDER_MARGIN = 6; // margin around slider
static const wxCoord SLIDER_THUMB_LENGTH = 18;
static const wxCoord SLIDER_TICK_LENGTH = 6;

// wxWin32Renderer: draw the GUI elements in Win32 style
// ----------------------------------------------------------------------------

class wxWin32Renderer : public wxStdRenderer
{
public:
    // ctor
    wxWin32Renderer(const wxColourScheme *scheme);

    // reimplement the renderer methods which are different for this theme
    virtual void DrawLabel(wxDC& dc,
                           const wxString& label,
                           const wxRect& rect,
                           int flags = 0,
                           int alignment = wxALIGN_LEFT | wxALIGN_TOP,
                           int indexAccel = -1,
                           wxRect *rectBounds = NULL);
    virtual void DrawButtonLabel(wxDC& dc,
                                 const wxString& label,
                                 const wxBitmap& image,
                                 const wxRect& rect,
                                 int flags = 0,
                                 int alignment = wxALIGN_LEFT | wxALIGN_TOP,
                                 int indexAccel = -1,
                                 wxRect *rectBounds = NULL);
    virtual void DrawButtonBorder(wxDC& dc,
                                  const wxRect& rect,
                                  int flags = 0,
                                  wxRect *rectIn = NULL);

    virtual void DrawArrow(wxDC& dc,
                           wxDirection dir,
                           const wxRect& rect,
                           int flags = 0);
    virtual void DrawScrollbarThumb(wxDC& dc,
                                    wxOrientation orient,
                                    const wxRect& rect,
                                    int flags = 0);
    virtual void DrawScrollbarShaft(wxDC& dc,
                                    wxOrientation orient,
                                    const wxRect& rect,
                                    int flags = 0);

#if wxUSE_TOOLBAR
    virtual void DrawToolBarButton(wxDC& dc,
                                   const wxString& label,
                                   const wxBitmap& bitmap,
                                   const wxRect& rect,
                                   int flags = 0,
                                   long style = 0,
                                   int tbarStyle = 0);
#endif // wxUSE_TOOLBAR

#if wxUSE_NOTEBOOK
    virtual void DrawTab(wxDC& dc,
                         const wxRect& rect,
                         wxDirection dir,
                         const wxString& label,
                         const wxBitmap& bitmap = wxNullBitmap,
                         int flags = 0,
                         int indexAccel = -1);
#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);
    virtual void DrawSliderThumb(wxDC& dc,
                                 const wxRect& rect,
                                 wxOrientation orient,
                                 int flags = 0,
                                 long style = 0);
    virtual void DrawSliderTicks(wxDC& dc,
                                 const wxRect& rect,
                                 int lenThumb,
                                 wxOrientation orient,
                                 int start,
                                 int end,
                                 int step = 1,
                                 int flags = 0,
                                 long style = 0);
#endif // wxUSE_SLIDER

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

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

    virtual void GetComboBitmaps(wxBitmap *bmpNormal,
                                 wxBitmap *bmpFocus,
                                 wxBitmap *bmpPressed,
                                 wxBitmap *bmpDisabled);

    virtual void AdjustSize(wxSize *size, const wxWindow *window);
    virtual bool AreScrollbarsInsideBorder() const;

    virtual wxSize GetScrollbarArrowSize() const
        { return m_sizeScrollbarArrow; }

    virtual wxSize GetCheckBitmapSize() const
        { return wxSize(13, 13); }
    virtual wxSize GetRadioBitmapSize() const
        { return wxSize(12, 12); }
    virtual wxCoord GetCheckItemMargin() const
        { return 0; }

#if wxUSE_TOOLBAR
    virtual wxSize GetToolBarButtonSize(wxCoord *separator) const
        { if ( separator ) *separator = 5; return wxSize(16, 15); }
    virtual wxSize GetToolBarMargin() const
        { return wxSize(4, 4); }
#endif // wxUSE_TOOLBAR

#if wxUSE_TEXTCTRL
    virtual wxRect GetTextTotalArea(const wxTextCtrl *text,
                                    const wxRect& rect) const;
    virtual wxRect GetTextClientArea(const wxTextCtrl *text,
                                     const wxRect& rect,
                                     wxCoord *extraSpaceBeyond) const;
#endif // wxUSE_TEXTCTRL

#if wxUSE_NOTEBOOK
    virtual wxSize GetTabIndent() const { return wxSize(2, 2); }
    virtual wxSize GetTabPadding() const { return wxSize(6, 5); }
#endif // wxUSE_NOTEBOOK

#if wxUSE_SLIDER

    virtual wxCoord GetSliderDim() const { return SLIDER_THUMB_LENGTH + 2*BORDER_THICKNESS; }
    virtual wxCoord GetSliderTickLen() const { return SLIDER_TICK_LENGTH; }
    virtual wxRect GetSliderShaftRect(const wxRect& rect,
                                      int lenThumb,
                                      wxOrientation orient,
                                      long style = 0) const;
    virtual wxSize GetSliderThumbSize(const wxRect& rect,
                                      int lenThumb,
                                      wxOrientation orient) const;
#endif // wxUSE_SLIDER

    virtual wxSize GetProgressBarStep() const { return wxSize(16, 32); }

#if wxUSE_MENUS
    virtual wxSize GetMenuBarItemSize(const wxSize& sizeText) const;
    virtual wxMenuGeometryInfo *GetMenuGeometry(wxWindow *win,
                                                const wxMenu& menu) const;
#endif // wxUSE_MENUS

protected:
    // overridden wxStdRenderer methods
    virtual void DrawFrameWithLabel(wxDC& dc,
                                    const wxString& label,
                                    const wxRect& rectFrame,
                                    const wxRect& rectText,
                                    int flags,
                                    int alignment,
                                    int indexAccel);

    virtual void DrawCheckItemBitmap(wxDC& dc,
                                     const wxBitmap& bitmap,
                                     const wxRect& rect,
                                     int flags);


    // draw the border used for scrollbar arrows
    void DrawArrowBorder(wxDC& dc, wxRect *rect, bool isPressed = false);

    // public DrawArrow()s helper
    void DrawArrow(wxDC& dc, const wxRect& rect,
                   ArrowDirection arrowDir, ArrowStyle arrowStyle);

    // DrawArrowButton is used by DrawScrollbar and DrawComboButton
    void DrawArrowButton(wxDC& dc, const wxRect& rect,
                         ArrowDirection arrowDir,
                         ArrowStyle arrowStyle);

    // draw a normal or transposed line (useful for using the same code fo both
    // horizontal and vertical widgets)
    void DrawLine(wxDC& dc,
                  wxCoord x1, wxCoord y1,
                  wxCoord x2, wxCoord y2,
                  bool transpose = false)
    {
        if ( transpose )
            dc.DrawLine(y1, x1, y2, x2);
        else
            dc.DrawLine(x1, y1, x2, y2);
    }

    // get the standard check/radio button bitmap
    wxBitmap GetIndicator(IndicatorType indType, int flags);
    virtual wxBitmap GetCheckBitmap(int flags)
        { return GetIndicator(IndicatorType_Check, flags); }
    virtual wxBitmap GetRadioBitmap(int flags)
        { return GetIndicator(IndicatorType_Radio, flags); }

    virtual wxBitmap GetFrameButtonBitmap(FrameButtonType type);

private:
    // the sizing parameters (TODO make them changeable)
    wxSize m_sizeScrollbarArrow;

    // the checked and unchecked bitmaps for DrawCheckItemBitmap()
    wxBitmap m_bmpCheckBitmaps[IndicatorStatus_Max];

    // the bitmaps returned by GetIndicator()
    wxBitmap m_bmpIndicators[IndicatorType_Max]
                            [IndicatorState_MaxMenu]
                            [IndicatorStatus_Max];

    // titlebar icons:
    wxBitmap m_bmpFrameButtons[FrameButton_Max];

    // standard defaults for the above bitmaps
    static const char **ms_xpmChecked[IndicatorStatus_Max];
    static const char **ms_xpmIndicators[IndicatorType_Max]
                                        [IndicatorState_MaxMenu]
                                        [IndicatorStatus_Max];
    static const char **ms_xpmFrameButtons[FrameButton_Max];

    // first row is for the normal state, second - for the disabled
    wxBitmap m_bmpArrows[Arrow_StateMax][Arrow_Max];
};

// ----------------------------------------------------------------------------
// wxWin32InputHandler and derived classes: process the keyboard and mouse
// messages according to Windows standards
// ----------------------------------------------------------------------------

class wxWin32InputHandler : public wxInputHandler
{
public:
    wxWin32InputHandler() { }

    virtual bool HandleKey(wxInputConsumer *control,
                           const wxKeyEvent& event,
                           bool pressed);
    virtual bool HandleMouse(wxInputConsumer *control,
                             const wxMouseEvent& event);
};

#if wxUSE_SCROLLBAR
class wxWin32ScrollBarInputHandler : public wxStdScrollBarInputHandler
{
public:
    wxWin32ScrollBarInputHandler(wxRenderer *renderer,
                                 wxInputHandler *handler);

    virtual bool HandleMouse(wxInputConsumer *control,
                             const wxMouseEvent& event);
    virtual bool HandleMouseMove(wxInputConsumer *control,
                                 const wxMouseEvent& event);

    virtual bool OnScrollTimer(wxScrollBar *scrollbar,
                               const wxControlAction& action);

protected:
    virtual void Highlight(wxScrollBar * WXUNUSED(scrollbar),
                           bool WXUNUSED(doIt))
    {
        // we don't highlight anything
    }

    // the first and last event which caused the thumb to move
    wxMouseEvent m_eventStartDrag,
                 m_eventLastDrag;

    // have we paused the scrolling because the mouse moved?
    bool m_scrollPaused;

    // we remember the interval of the timer to be able to restart it
    int m_interval;
};
#endif // wxUSE_SCROLLBAR

#if wxUSE_CHECKBOX
class wxWin32CheckboxInputHandler : public wxStdInputHandler
{
public:
    wxWin32CheckboxInputHandler(wxInputHandler *handler)
        : wxStdInputHandler(handler) { }

    virtual bool HandleKey(wxInputConsumer *control,
                           const wxKeyEvent& event,
                           bool pressed);
};
#endif // wxUSE_CHECKBOX

#if wxUSE_TEXTCTRL
class wxWin32TextCtrlInputHandler : public wxStdInputHandler
{
public:
    wxWin32TextCtrlInputHandler(wxInputHandler *handler)
        : wxStdInputHandler(handler) { }

    virtual bool HandleKey(wxInputConsumer *control,
                           const wxKeyEvent& event,
                           bool pressed);
};
#endif // wxUSE_TEXTCTRL

class wxWin32StatusBarInputHandler : public wxStdInputHandler
{
public:
    wxWin32StatusBarInputHandler(wxInputHandler *handler);

    virtual bool HandleMouse(wxInputConsumer *consumer,
                             const wxMouseEvent& event);

    virtual bool HandleMouseMove(wxInputConsumer *consumer,
                                 const wxMouseEvent& event);

protected:
    // is the given point over the statusbar grip?
    bool IsOnGrip(wxWindow *statbar, const wxPoint& pt) const;

private:
    // the cursor we had replaced with the resize one
    wxCursor m_cursorOld;

    // was the mouse over the grip last time we checked?
    bool m_isOnGrip;
};

class wxWin32SystemMenuEvtHandler;

class wxWin32FrameInputHandler : public wxStdInputHandler
{
public:
    wxWin32FrameInputHandler(wxInputHandler *handler);
    virtual ~wxWin32FrameInputHandler();

    virtual bool HandleMouse(wxInputConsumer *control,
                             const wxMouseEvent& event);

    virtual bool HandleActivation(wxInputConsumer *consumer, bool activated);

#if wxUSE_MENUS
    void PopupSystemMenu(wxTopLevelWindow *window) const;