src/gtk/bitmap.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        bitmap.cpp
// Purpose:
// Author:      Robert Roebling
// RCS-ID:      $Id$
// Copyright:   (c) 1998 Robert Roebling
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation "bitmap.h"
#endif

#include "wx/bitmap.h"
#include "wx/icon.h"
#include "wx/filefn.h"
#include "wx/image.h"
#include "wx/dcmemory.h"

#include <gdk/gdk.h>
#include <gtk/gtk.h>

extern void gdk_wx_draw_bitmap     (GdkDrawable  *drawable,
                          GdkGC               *gc,
                          GdkDrawable  *src,
                          gint                xsrc,
                          gint                ysrc,
                          gint                xdest,
                          gint                ydest,
                          gint                width,
                          gint                height);

//-----------------------------------------------------------------------------
// data
//-----------------------------------------------------------------------------

extern GtkWidget *wxRootWindow;

//-----------------------------------------------------------------------------
// wxMask
//-----------------------------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject)

wxMask::wxMask()
{
    m_bitmap = (GdkBitmap *) NULL;
}

wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour )
{
    m_bitmap = (GdkBitmap *) NULL;
    Create( bitmap, colour );
}

wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex )
{
    m_bitmap = (GdkBitmap *) NULL;
    Create( bitmap, paletteIndex );
}

wxMask::wxMask( const wxBitmap& bitmap )
{
    m_bitmap = (GdkBitmap *) NULL;
    Create( bitmap );
}

wxMask::~wxMask()
{
    if (m_bitmap)
        gdk_bitmap_unref( m_bitmap );
}

bool wxMask::Create( const wxBitmap& bitmap,
                     const wxColour& colour )
{
    if (m_bitmap)
    {
        gdk_bitmap_unref( m_bitmap );
        m_bitmap = (GdkBitmap*) NULL;
    }

    wxImage image( bitmap );
    if (!image.Ok()) return FALSE;

    m_bitmap = gdk_pixmap_new( wxRootWindow->window, image.GetWidth(), image.GetHeight(), 1 );
    GdkGC *gc = gdk_gc_new( m_bitmap );

    GdkColor color;
    color.red = 65000;
    color.green = 65000;
    color.blue = 65000;
    color.pixel = 1;
    gdk_gc_set_foreground( gc, &color );
    gdk_gc_set_fill( gc, GDK_SOLID );
    gdk_draw_rectangle( m_bitmap, gc, TRUE, 0, 0, image.GetWidth(), image.GetHeight() );

    unsigned char *data = image.GetData();
    int index = 0;

    unsigned char red = colour.Red();
    unsigned char green = colour.Green();
    unsigned char blue = colour.Blue();

    GdkVisual *visual = gdk_window_get_visual( wxRootWindow->window );
    wxASSERT( visual );

    int bpp = visual->depth;
    if ((bpp == 16) && (visual->red_mask != 0xf800)) bpp = 15;
    if (bpp == 15)
    {
        red = red & 0xf8;
        green = green & 0xf8;
        blue = blue & 0xf8;
    }
    if (bpp == 16)
    {
        red = red & 0xf8;
        green = green & 0xfc;
        blue = blue & 0xf8;
    }

    color.red = 0;
    color.green = 0;
    color.blue = 0;
    color.pixel = 0;
    gdk_gc_set_foreground( gc, &color );

    for (int j = 0; j < image.GetHeight(); j++)
    {
        int start_x = -1;
        int i;
        for (i = 0; i < image.GetWidth(); i++)
        {
            if ((data[index] == red) &&
                (data[index+1] == green) &&
                (data[index+2] == blue))
            {
                if (start_x == -1)
                start_x = i;
            }
            else
            {
                if (start_x != -1)
                {
                    gdk_draw_line( m_bitmap, gc, start_x, j, i-1, j );
                    start_x = -1;
                }
            }
            index += 3;
        }
        if (start_x != -1)
            gdk_draw_line( m_bitmap, gc, start_x, j, i, j );
    }

    gdk_gc_unref( gc );

    return TRUE;
}

bool wxMask::Create( const wxBitmap& WXUNUSED(bitmap),
                     int WXUNUSED(paletteIndex) )
{
    if (m_bitmap)
    {
        gdk_bitmap_unref( m_bitmap );
        m_bitmap = (GdkBitmap*) NULL;
    }

    wxFAIL_MSG( wxT("not implemented") );

    return FALSE;
}

bool wxMask::Create( const wxBitmap& bitmap )
{
    if (m_bitmap)
    {
        gdk_bitmap_unref( m_bitmap );
        m_bitmap = (GdkBitmap*) NULL;
    }

    if (!bitmap.Ok()) return FALSE;

    wxCHECK_MSG( bitmap.GetBitmap(), FALSE, wxT("Cannot create mask from colour bitmap") );

    m_bitmap = gdk_pixmap_new( wxRootWindow->window, bitmap.GetWidth(), bitmap.GetHeight(), 1 );

    if (!m_bitmap) return FALSE;

    GdkGC *gc = gdk_gc_new( m_bitmap );

    gdk_wx_draw_bitmap( m_bitmap, gc, bitmap.GetBitmap(), 0, 0, 0, 0, bitmap.GetWidth(), bitmap.GetHeight() );

    gdk_gc_unref( gc );

    return TRUE;
}

GdkBitmap *wxMask::GetBitmap() const
{
    return m_bitmap;
}

//-----------------------------------------------------------------------------
// wxBitmap
//-----------------------------------------------------------------------------

class wxBitmapRefData: public wxObjectRefData
{
public:
    wxBitmapRefData();
    ~wxBitmapRefData();

    GdkPixmap      *m_pixmap;
    GdkBitmap      *m_bitmap;
    wxMask         *m_mask;
    int             m_width;
    int             m_height;
    int             m_bpp;
    wxPalette      *m_palette;
};

wxBitmapRefData::wxBitmapRefData()
{
    m_pixmap = (GdkPixmap *) NULL;
    m_bitmap = (GdkBitmap *) NULL;
    m_mask = (wxMask *) NULL;
    m_width = 0;
    m_height = 0;
    m_bpp = 0;
    m_palette = (wxPalette *) NULL;
}

wxBitmapRefData::~wxBitmapRefData()
{
    if (m_pixmap) gdk_pixmap_unref( m_pixmap );
    if (m_bitmap) gdk_bitmap_unref( m_bitmap );
    if (m_mask) delete m_mask;
    if (m_palette) delete m_palette;
}

//-----------------------------------------------------------------------------

#define M_BMPDATA ((wxBitmapRefData *)m_refData)

IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)

wxBitmap::wxBitmap()
{
    if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
}

wxBitmap::wxBitmap( int width, int height, int depth )
{
    Create( width, height, depth );

    if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
}

bool wxBitmap::Create( int width, int height, int depth )
{
    UnRef();

    wxCHECK_MSG( (width > 0) && (height > 0), FALSE, wxT("invalid bitmap size") )

    GdkVisual *visual = gdk_window_get_visual( wxRootWindow->window );
    wxASSERT( visual );

    if (depth == -1) depth = visual->depth;

    wxCHECK_MSG( (depth == visual->depth) ||
                 (depth == 1), FALSE, wxT("invalid bitmap depth") )

    m_refData = new wxBitmapRefData();
    M_BMPDATA->m_mask = (wxMask *) NULL;
    M_BMPDATA->m_width = width;
    M_BMPDATA->m_height = height;
    if (depth == 1)
    {
        M_BMPDATA->m_bitmap = gdk_pixmap_new( wxRootWindow->window, width, height, 1 );
        M_BMPDATA->m_bpp = 1;
    }
    else
    {
        M_BMPDATA->m_pixmap = gdk_pixmap_new( wxRootWindow->window, width, height, depth );
        M_BMPDATA->m_bpp = visual->depth;
    }

    return Ok();
}
bool wxBitmap::CreateFromXpm( const char **bits )
{
    wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") )

    GdkVisual *visual = gdk_window_get_visual( wxRootWindow->window );
    wxASSERT( visual );

    m_refData = new wxBitmapRefData();

    GdkBitmap *mask = (GdkBitmap*) NULL;

    M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( wxRootWindow->window, &mask, NULL, (gchar **) bits );

    wxCHECK_MSG( M_BMPDATA->m_pixmap, FALSE, wxT("couldn't create pixmap") );

    if (mask)
    {
        M_BMPDATA->m_mask = new wxMask();
        M_BMPDATA->m_mask->m_bitmap = mask;
    }

    gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );

    M_BMPDATA->m_bpp = visual->depth;  // ?

    if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);

    return TRUE;
}

wxBitmap::wxBitmap( const wxBitmap& bmp )
{
    Ref( bmp );

    if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
}

wxBitmap::wxBitmap( const wxString &filename, int type )
{
    LoadFile( filename, type );

    if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
}

wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth))
{
    m_refData = new wxBitmapRefData();

    M_BMPDATA->m_mask = (wxMask *) NULL;
    M_BMPDATA->m_bitmap =
      gdk_bitmap_create_from_data( wxRootWindow->window, (gchar *) bits, width, height );
    M_BMPDATA->m_width = width;
    M_BMPDATA->m_height = height;
    M_BMPDATA->m_bpp = 1;

    wxCHECK_RET( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") );

    if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
}

wxBitmap::~wxBitmap()
{
    if (wxTheBitmapList) wxTheBitmapList->DeleteObject(this);
}

wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp )
{
    if (*this == bmp) return (*this);
    Ref( bmp );
    return *this;
}

bool wxBitmap::operator == ( const wxBitmap& bmp ) const
{
    return m_refData == bmp.m_refData;
}

bool wxBitmap::operator != ( const wxBitmap& bmp ) const
{
    return m_refData != bmp.m_refData;
}

bool wxBitmap::Ok() const
{
    return (m_refData != NULL);
}

int wxBitmap::GetHeight() const
{
    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );

    return M_BMPDATA->m_height;
}

int wxBitmap::GetWidth() const
{
    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );

    return M_BMPDATA->m_width;
}

int wxBitmap::GetDepth() const
{
    wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );

    return M_BMPDATA->m_bpp;
}

wxMask *wxBitmap::GetMask() const
{
    wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );

    return M_BMPDATA->m_mask;
}

void wxBitmap::SetMask( wxMask *mask )
{
    wxCHECK_RET( Ok(), wxT("invalid bitmap") );

    if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;

    M_BMPDATA->m_mask = mask;
}

wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
{
    wxCHECK_MSG( Ok() &&
                 (rect.x >= 0) && (rect.y >= 0) &&
                 (rect.x+rect.width <= M_BMPDATA->m_width) && (rect.y+rect.height <= M_BMPDATA->m_height),
                 wxNullBitmap, wxT("invalid bitmap or bitmap region") );

    wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
    wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );

    if (ret.GetPixmap())
    {
        GdkGC *gc = gdk_gc_new( ret.GetPixmap() );
        gdk_draw_pixmap( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
        gdk_gc_destroy( gc );
    }
    else
    {
        GdkGC *gc = gdk_gc_new( ret.GetBitmap() );
        gdk_wx_draw_bitmap( ret.GetBitmap(), gc, GetBitmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
        gdk_gc_destroy( gc );
    }

    if (GetMask())
    {
        wxMask *mask = new wxMask;
        mask->m_bitmap = gdk_pixmap_new( wxRootWindow->window, rect.width, rect.height, 1 );

        GdkGC *gc = gdk_gc_new( mask->m_bitmap );
        gdk_wx_draw_bitmap( mask->m_bitmap, gc, M_BMPDATA->m_mask->m_bitmap, 0, 0, rect.x, rect.y, rect.width, rect.height );
        gdk_gc_destroy( gc );

        ret.SetMask( mask );
    }

    return ret;
}

bool wxBitmap::SaveFile( const wxString &name, int type, wxPalette *WXUNUSED(palette) )
{
    wxCHECK_MSG( Ok(), FALSE, wxT("invalid bitmap") );

    // Try to save the bitmap via wxImage handlers:
    {
        wxImage image( *this );
        if (image.Ok()) return image.SaveFile( name, type );
    }

    return FALSE;
}

bool wxBitmap::LoadFile( const wxString &name, int type )
{
    UnRef();

    if (!wxFileExists(name)) return FALSE;

    GdkVisual *visual = gdk_window_get_visual( wxRootWindow->window );
    wxASSERT( visual );

    if (type == wxBITMAP_TYPE_XPM)
    {
        m_refData = new wxBitmapRefData();

        GdkBitmap *mask = (GdkBitmap*) NULL;

        M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm( wxRootWindow->window, &mask, NULL, name.fn_str() );

        if (mask)
        {
           M_BMPDATA->m_mask = new wxMask();
           M_BMPDATA->m_mask->m_bitmap = mask;
        }

        gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );

        M_BMPDATA->m_bpp = visual->depth;
    }
    else // try if wxImage can load it
    {
        wxImage image;
        if (!image.LoadFile( name, type )) return FALSE;
        if (image.Ok()) *this = image.ConvertToBitmap();
        else return FALSE;
    }

    return TRUE;
}

wxPalette *wxBitmap::GetPalette() const
{
    if (!Ok()) return (wxPalette *) NULL;

    return M_BMPDATA->m_palette;
}

void wxBitmap::SetHeight( int height )
{
    if (!m_refData) m_refData = new wxBitmapRefData();

    M_BMPDATA->m_height = height;
}

void wxBitmap::SetWidth( int width )
{
    if (!m_refData) m_refData = new wxBitmapRefData();

    M_BMPDATA->m_width = width;
}

void wxBitmap::SetDepth( int depth )
{
    if (!m_refData) m_refData = new wxBitmapRefData();

    M_BMPDATA->m_bpp = depth;
}

void wxBitmap::SetPixmap( GdkPixmap *pixmap )
{
    if (!m_refData) m_refData = new wxBitmapRefData();

    M_BMPDATA->m_pixmap = pixmap;
}

void wxBitmap::SetBitmap( GdkPixmap *bitmap )
{
    if (!m_refData) m_refData = new wxBitmapRefData();

    M_BMPDATA->m_bitmap = bitmap;
}

GdkPixmap *wxBitmap::GetPixmap() const
{
    wxCHECK_MSG( Ok(), (GdkPixmap *) NULL, wxT("invalid bitmap") );

    return M_BMPDATA->m_pixmap;
}

GdkBitmap *wxBitmap::GetBitmap() const
{
    wxCHECK_MSG( Ok(), (GdkBitmap *) NULL, wxT("invalid bitmap") );

    return M_BMPDATA->m_bitmap;
}
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: bitmap.cpp
	3	// Purpose:
	4	// Author: Robert Roebling
	5	// RCS-ID: $Id$
	6	// Copyright: (c) 1998 Robert Roebling
	7	// Licence: wxWindows licence
	8	/////////////////////////////////////////////////////////////////////////////
	9
	10	#ifdef __GNUG__
	11	#pragma implementation "bitmap.h"
	12	#endif
	13
	14	#include "wx/bitmap.h"
	15	#include "wx/icon.h"
	16	#include "wx/filefn.h"
	17	#include "wx/image.h"
	18	#include "wx/dcmemory.h"
	19
	20	#include <gdk/gdk.h>
	21	#include <gtk/gtk.h>
	22
	23	extern void gdk_wx_draw_bitmap (GdkDrawable *drawable,
	24	GdkGC *gc,
	25	GdkDrawable *src,
	26	gint xsrc,
	27	gint ysrc,
	28	gint xdest,
	29	gint ydest,
	30	gint width,
	31	gint height);
	32
	33	//-----------------------------------------------------------------------------
	34	// data
	35	//-----------------------------------------------------------------------------
	36
	37	extern GtkWidget *wxRootWindow;
	38
	39	//-----------------------------------------------------------------------------
	40	// wxMask
	41	//-----------------------------------------------------------------------------
	42
	43	IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject)
	44
	45	wxMask::wxMask()
	46	{
	47	m_bitmap = (GdkBitmap *) NULL;
	48	}
	49
	50	wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour )
	51	{
	52	m_bitmap = (GdkBitmap *) NULL;
	53	Create( bitmap, colour );
	54	}
	55
	56	wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex )
	57	{
	58	m_bitmap = (GdkBitmap *) NULL;
	59	Create( bitmap, paletteIndex );
	60	}
	61
	62	wxMask::wxMask( const wxBitmap& bitmap )
	63	{
	64	m_bitmap = (GdkBitmap *) NULL;
	65	Create( bitmap );
	66	}
	67
	68	wxMask::~wxMask()
	69	{
	70	if (m_bitmap)
	71	gdk_bitmap_unref( m_bitmap );
	72	}
	73
	74	bool wxMask::Create( const wxBitmap& bitmap,
	75	const wxColour& colour )
	76	{
	77	if (m_bitmap)
	78	{
	79	gdk_bitmap_unref( m_bitmap );
	80	m_bitmap = (GdkBitmap*) NULL;
	81	}
	82
	83	wxImage image( bitmap );
	84	if (!image.Ok()) return FALSE;
	85
	86	m_bitmap = gdk_pixmap_new( wxRootWindow->window, image.GetWidth(), image.GetHeight(), 1 );
	87	GdkGC *gc = gdk_gc_new( m_bitmap );
	88
	89	GdkColor color;
	90	color.red = 65000;
	91	color.green = 65000;
	92	color.blue = 65000;
	93	color.pixel = 1;
	94	gdk_gc_set_foreground( gc, &color );
	95	gdk_gc_set_fill( gc, GDK_SOLID );
	96	gdk_draw_rectangle( m_bitmap, gc, TRUE, 0, 0, image.GetWidth(), image.GetHeight() );
	97
	98	unsigned char *data = image.GetData();
	99	int index = 0;
	100
	101	unsigned char red = colour.Red();
	102	unsigned char green = colour.Green();
	103	unsigned char blue = colour.Blue();
	104
	105	GdkVisual *visual = gdk_window_get_visual( wxRootWindow->window );
	106	wxASSERT( visual );
	107
	108	int bpp = visual->depth;
	109	if ((bpp == 16) && (visual->red_mask != 0xf800)) bpp = 15;
	110	if (bpp == 15)
	111	{
	112	red = red & 0xf8;
	113	green = green & 0xf8;
	114	blue = blue & 0xf8;
	115	}
	116	if (bpp == 16)
	117	{
	118	red = red & 0xf8;
	119	green = green & 0xfc;
	120	blue = blue & 0xf8;
	121	}
	122
	123	color.red = 0;
	124	color.green = 0;
	125	color.blue = 0;
	126	color.pixel = 0;
	127	gdk_gc_set_foreground( gc, &color );
	128
	129	for (int j = 0; j < image.GetHeight(); j++)
	130	{
	131	int start_x = -1;
	132	int i;
	133	for (i = 0; i < image.GetWidth(); i++)
	134	{
	135	if ((data[index] == red) &&
	136	(data[index+1] == green) &&
	137	(data[index+2] == blue))
	138	{
	139	if (start_x == -1)
	140	start_x = i;
	141	}
	142	else
	143	{
	144	if (start_x != -1)
	145	{
	146	gdk_draw_line( m_bitmap, gc, start_x, j, i-1, j );
	147	start_x = -1;
	148	}
	149	}
	150	index += 3;
	151	}
	152	if (start_x != -1)
	153	gdk_draw_line( m_bitmap, gc, start_x, j, i, j );
	154	}
	155
	156	gdk_gc_unref( gc );
	157
	158	return TRUE;
	159	}
	160
	161	bool wxMask::Create( const wxBitmap& WXUNUSED(bitmap),
	162	int WXUNUSED(paletteIndex) )
	163	{
	164	if (m_bitmap)
	165	{
	166	gdk_bitmap_unref( m_bitmap );
	167	m_bitmap = (GdkBitmap*) NULL;
	168	}
	169
	170	wxFAIL_MSG( wxT("not implemented") );
	171
	172	return FALSE;
	173	}
	174
	175	bool wxMask::Create( const wxBitmap& bitmap )
	176	{
	177	if (m_bitmap)
	178	{
	179	gdk_bitmap_unref( m_bitmap );
	180	m_bitmap = (GdkBitmap*) NULL;
	181	}
	182
	183	if (!bitmap.Ok()) return FALSE;
	184
	185	wxCHECK_MSG( bitmap.GetBitmap(), FALSE, wxT("Cannot create mask from colour bitmap") );
	186
	187	m_bitmap = gdk_pixmap_new( wxRootWindow->window, bitmap.GetWidth(), bitmap.GetHeight(), 1 );
	188
	189	if (!m_bitmap) return FALSE;
	190
	191	GdkGC *gc = gdk_gc_new( m_bitmap );
	192
	193	gdk_wx_draw_bitmap( m_bitmap, gc, bitmap.GetBitmap(), 0, 0, 0, 0, bitmap.GetWidth(), bitmap.GetHeight() );
	194
	195	gdk_gc_unref( gc );
	196
	197	return TRUE;
	198	}
	199
	200	GdkBitmap *wxMask::GetBitmap() const
	201	{
	202	return m_bitmap;
	203	}
	204
	205	//-----------------------------------------------------------------------------
	206	// wxBitmap
	207	//-----------------------------------------------------------------------------
	208
	209	class wxBitmapRefData: public wxObjectRefData
	210	{
	211	public:
	212	wxBitmapRefData();
	213	~wxBitmapRefData();
	214
	215	GdkPixmap *m_pixmap;
	216	GdkBitmap *m_bitmap;
	217	wxMask *m_mask;
	218	int m_width;
	219	int m_height;
	220	int m_bpp;
	221	wxPalette *m_palette;
	222	};
	223
	224	wxBitmapRefData::wxBitmapRefData()
	225	{
	226	m_pixmap = (GdkPixmap *) NULL;
	227	m_bitmap = (GdkBitmap *) NULL;
	228	m_mask = (wxMask *) NULL;
	229	m_width = 0;
	230	m_height = 0;
	231	m_bpp = 0;
	232	m_palette = (wxPalette *) NULL;
	233	}
	234
	235	wxBitmapRefData::~wxBitmapRefData()
	236	{
	237	if (m_pixmap) gdk_pixmap_unref( m_pixmap );
	238	if (m_bitmap) gdk_bitmap_unref( m_bitmap );
	239	if (m_mask) delete m_mask;
	240	if (m_palette) delete m_palette;
	241	}
	242
	243	//-----------------------------------------------------------------------------
	244
	245	#define M_BMPDATA ((wxBitmapRefData *)m_refData)
	246
	247	IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
	248
	249	wxBitmap::wxBitmap()
	250	{
	251	if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
	252	}
	253
	254	wxBitmap::wxBitmap( int width, int height, int depth )
	255	{
	256	Create( width, height, depth );
	257
	258	if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
	259	}
	260
	261	bool wxBitmap::Create( int width, int height, int depth )
	262	{
	263	UnRef();
	264
	265	wxCHECK_MSG( (width > 0) && (height > 0), FALSE, wxT("invalid bitmap size") )
	266
	267	GdkVisual *visual = gdk_window_get_visual( wxRootWindow->window );
	268	wxASSERT( visual );
	269
	270	if (depth == -1) depth = visual->depth;
	271
	272	wxCHECK_MSG( (depth == visual->depth) \|\|
	273	(depth == 1), FALSE, wxT("invalid bitmap depth") )
	274
	275	m_refData = new wxBitmapRefData();
	276	M_BMPDATA->m_mask = (wxMask *) NULL;
	277	M_BMPDATA->m_width = width;
	278	M_BMPDATA->m_height = height;
	279	if (depth == 1)
	280	{
	281	M_BMPDATA->m_bitmap = gdk_pixmap_new( wxRootWindow->window, width, height, 1 );
	282	M_BMPDATA->m_bpp = 1;
	283	}
	284	else
	285	{
	286	M_BMPDATA->m_pixmap = gdk_pixmap_new( wxRootWindow->window, width, height, depth );
	287	M_BMPDATA->m_bpp = visual->depth;
	288	}
	289
	290	return Ok();
	291	}
	292	bool wxBitmap::CreateFromXpm( const char **bits )
	293	{
	294	wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") )
	295
	296	GdkVisual *visual = gdk_window_get_visual( wxRootWindow->window );
	297	wxASSERT( visual );
	298
	299	m_refData = new wxBitmapRefData();
	300
	301	GdkBitmap mask = (GdkBitmap) NULL;
	302
	303	M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( wxRootWindow->window, &mask, NULL, (gchar **) bits );
	304
	305	wxCHECK_MSG( M_BMPDATA->m_pixmap, FALSE, wxT("couldn't create pixmap") );
	306
	307	if (mask)
	308	{
	309	M_BMPDATA->m_mask = new wxMask();
	310	M_BMPDATA->m_mask->m_bitmap = mask;
	311	}
	312
	313	gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
	314
	315	M_BMPDATA->m_bpp = visual->depth; // ?
	316
	317	if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
	318
	319	return TRUE;
	320	}
	321
	322	wxBitmap::wxBitmap( const wxBitmap& bmp )
	323	{
	324	Ref( bmp );
	325
	326	if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
	327	}
	328
	329	wxBitmap::wxBitmap( const wxString &filename, int type )
	330	{
	331	LoadFile( filename, type );
	332
	333	if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
	334	}
	335
	336	wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth))
	337	{
	338	m_refData = new wxBitmapRefData();
	339
	340	M_BMPDATA->m_mask = (wxMask *) NULL;
	341	M_BMPDATA->m_bitmap =
	342	gdk_bitmap_create_from_data( wxRootWindow->window, (gchar *) bits, width, height );
	343	M_BMPDATA->m_width = width;
	344	M_BMPDATA->m_height = height;
	345	M_BMPDATA->m_bpp = 1;
	346
	347	wxCHECK_RET( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") );
	348
	349	if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
	350	}
	351
	352	wxBitmap::~wxBitmap()
	353	{
	354	if (wxTheBitmapList) wxTheBitmapList->DeleteObject(this);
	355	}
	356
	357	wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp )
	358	{
	359	if (this == bmp) return (this);
	360	Ref( bmp );
	361	return *this;
	362	}
	363
	364	bool wxBitmap::operator == ( const wxBitmap& bmp ) const
	365	{
	366	return m_refData == bmp.m_refData;
	367	}
	368
	369	bool wxBitmap::operator != ( const wxBitmap& bmp ) const
	370	{
	371	return m_refData != bmp.m_refData;
	372	}
	373
	374	bool wxBitmap::Ok() const
	375	{
	376	return (m_refData != NULL);
	377	}
	378
	379	int wxBitmap::GetHeight() const
	380	{
	381	wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
	382
	383	return M_BMPDATA->m_height;
	384	}
	385
	386	int wxBitmap::GetWidth() const
	387	{
	388	wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
	389
	390	return M_BMPDATA->m_width;
	391	}
	392
	393	int wxBitmap::GetDepth() const
	394	{
	395	wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
	396
	397	return M_BMPDATA->m_bpp;
	398	}
	399
	400	wxMask *wxBitmap::GetMask() const
	401	{
	402	wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
	403
	404	return M_BMPDATA->m_mask;
	405	}
	406
	407	void wxBitmap::SetMask( wxMask *mask )
	408	{
	409	wxCHECK_RET( Ok(), wxT("invalid bitmap") );
	410
	411	if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
	412
	413	M_BMPDATA->m_mask = mask;
	414	}
	415
	416	wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
	417	{
	418	wxCHECK_MSG( Ok() &&
	419	(rect.x >= 0) && (rect.y >= 0) &&
	420	(rect.x+rect.width <= M_BMPDATA->m_width) && (rect.y+rect.height <= M_BMPDATA->m_height),
	421	wxNullBitmap, wxT("invalid bitmap or bitmap region") );
	422
	423	wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
	424	wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
	425
	426	if (ret.GetPixmap())
	427	{
	428	GdkGC *gc = gdk_gc_new( ret.GetPixmap() );
	429	gdk_draw_pixmap( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
	430	gdk_gc_destroy( gc );
	431	}
	432	else
	433	{
	434	GdkGC *gc = gdk_gc_new( ret.GetBitmap() );
	435	gdk_wx_draw_bitmap( ret.GetBitmap(), gc, GetBitmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
	436	gdk_gc_destroy( gc );
	437	}
	438
	439	if (GetMask())
	440	{
	441	wxMask *mask = new wxMask;
	442	mask->m_bitmap = gdk_pixmap_new( wxRootWindow->window, rect.width, rect.height, 1 );
	443
	444	GdkGC *gc = gdk_gc_new( mask->m_bitmap );
	445	gdk_wx_draw_bitmap( mask->m_bitmap, gc, M_BMPDATA->m_mask->m_bitmap, 0, 0, rect.x, rect.y, rect.width, rect.height );
	446	gdk_gc_destroy( gc );
	447
	448	ret.SetMask( mask );
	449	}
	450
	451	return ret;
	452	}
	453
	454	bool wxBitmap::SaveFile( const wxString &name, int type, wxPalette *WXUNUSED(palette) )
	455	{
	456	wxCHECK_MSG( Ok(), FALSE, wxT("invalid bitmap") );
	457
	458	// Try to save the bitmap via wxImage handlers:
	459	{
	460	wxImage image( *this );
	461	if (image.Ok()) return image.SaveFile( name, type );
	462	}
	463
	464	return FALSE;
	465	}
	466
	467	bool wxBitmap::LoadFile( const wxString &name, int type )
	468	{
	469	UnRef();
	470
	471	if (!wxFileExists(name)) return FALSE;
	472
	473	GdkVisual *visual = gdk_window_get_visual( wxRootWindow->window );
	474	wxASSERT( visual );
	475
	476	if (type == wxBITMAP_TYPE_XPM)
	477	{
	478	m_refData = new wxBitmapRefData();
	479
	480	GdkBitmap mask = (GdkBitmap) NULL;
	481
	482	M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm( wxRootWindow->window, &mask, NULL, name.fn_str() );
	483
	484	if (mask)
	485	{
	486	M_BMPDATA->m_mask = new wxMask();
	487	M_BMPDATA->m_mask->m_bitmap = mask;
	488	}
	489
	490	gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
	491
	492	M_BMPDATA->m_bpp = visual->depth;
	493	}
	494	else // try if wxImage can load it
	495	{
	496	wxImage image;
	497	if (!image.LoadFile( name, type )) return FALSE;
	498	if (image.Ok()) *this = image.ConvertToBitmap();
	499	else return FALSE;
	500	}
	501
	502	return TRUE;
	503	}
	504
	505	wxPalette *wxBitmap::GetPalette() const
	506	{
	507	if (!Ok()) return (wxPalette *) NULL;
	508
	509	return M_BMPDATA->m_palette;
	510	}
	511
	512	void wxBitmap::SetHeight( int height )
	513	{
	514	if (!m_refData) m_refData = new wxBitmapRefData();
	515
	516	M_BMPDATA->m_height = height;
	517	}
	518
	519	void wxBitmap::SetWidth( int width )
	520	{
	521	if (!m_refData) m_refData = new wxBitmapRefData();
	522
	523	M_BMPDATA->m_width = width;
	524	}
	525
	526	void wxBitmap::SetDepth( int depth )
	527	{
	528	if (!m_refData) m_refData = new wxBitmapRefData();
	529
	530	M_BMPDATA->m_bpp = depth;
	531	}
	532
	533	void wxBitmap::SetPixmap( GdkPixmap *pixmap )
	534	{
	535	if (!m_refData) m_refData = new wxBitmapRefData();
	536
	537	M_BMPDATA->m_pixmap = pixmap;
	538	}
	539
	540	void wxBitmap::SetBitmap( GdkPixmap *bitmap )
	541	{
	542	if (!m_refData) m_refData = new wxBitmapRefData();
	543
	544	M_BMPDATA->m_bitmap = bitmap;
	545	}
	546
	547	GdkPixmap *wxBitmap::GetPixmap() const
	548	{
	549	wxCHECK_MSG( Ok(), (GdkPixmap *) NULL, wxT("invalid bitmap") );
	550
	551	return M_BMPDATA->m_pixmap;
	552	}
	553
	554	GdkBitmap *wxBitmap::GetBitmap() const
	555	{
	556	wxCHECK_MSG( Ok(), (GdkBitmap *) NULL, wxT("invalid bitmap") );
	557
	558	return M_BMPDATA->m_bitmap;
	559	}