src/gtk1/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 <gdk/gdkprivate.h>

// in GTK+ 1.3 gdk_root_parent was renamed into gdk_parent_root
#ifdef __WXGTK13__
    #define gdk_root_parent gdk_parent_root
#else // GTK+ <= 1.2
    // need to get the declaration of gdk_root_parent from private header
    #include <gdk/gdkx.h>
#endif // GTK+ 1.3/1.2

//-----------------------------------------------------------------------------
// 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;

    GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
    m_bitmap = gdk_pixmap_new( parent, 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_visual_get_system();
    int bpp = visual->depth;
    if ((bpp == 16) && (visual->red_mask != 0xf800)) bpp = 15;
    if (bpp == 15)
    {
        red = red & 0xf8;
        blue = blue & 0xf8;
        green = green & 0xf8;
    }
    if (bpp == 16)
    {
        red = red & 0xf8;
        blue = blue & 0xfc;
        green = green & 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( (GdkWindow*) &gdk_root_parent, bitmap.GetWidth(), bitmap.GetHeight(), 1 );

    if (!m_bitmap) return FALSE;

    GdkGC *gc = gdk_gc_new( m_bitmap );

    gdk_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 )
{
    wxCHECK_RET( (width > 0) && (height > 0), wxT("invalid bitmap size") )

    GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
    if (depth == -1) depth = gdk_window_get_visual( parent )->depth;

    wxCHECK_RET( (depth ==  gdk_window_get_visual( parent )->depth) ||
                 (depth == 1), 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( parent, width, height, 1 );
        M_BMPDATA->m_bpp = 1;
    }
    else
    {
        M_BMPDATA->m_pixmap = gdk_pixmap_new( parent, width, height, depth );
        M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth;
    }

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

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

    m_refData = new wxBitmapRefData();

    GdkBitmap *mask = (GdkBitmap*) NULL;
    GdkWindow *parent = (GdkWindow*) &gdk_root_parent;

    M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( parent, &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 = gdk_window_get_visual( parent )->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( (GdkWindow*) &gdk_root_parent, (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 )
{
    return m_refData == bmp.m_refData;
}

bool wxBitmap::operator != ( const wxBitmap& bmp )
{
    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_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;
        GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
        mask->m_bitmap = gdk_pixmap_new( parent, rect.width, rect.height, 1 );

        GdkGC *gc = gdk_gc_new( mask->m_bitmap );
        gdk_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;

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

        GdkBitmap *mask = (GdkBitmap*) NULL;
        GdkWindow *parent = (GdkWindow*) &gdk_root_parent;

        M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm( parent, &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 = gdk_window_get_visual( parent )->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;
}

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 <gdk/gdkprivate.h>
	22
	23	// in GTK+ 1.3 gdk_root_parent was renamed into gdk_parent_root
	24	#ifdef __WXGTK13__
	25	#define gdk_root_parent gdk_parent_root
	26	#else // GTK+ <= 1.2
	27	// need to get the declaration of gdk_root_parent from private header
	28	#include <gdk/gdkx.h>
	29	#endif // GTK+ 1.3/1.2
	30
	31	//-----------------------------------------------------------------------------
	32	// wxMask
	33	//-----------------------------------------------------------------------------
	34
	35	IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject)
	36
	37	wxMask::wxMask()
	38	{
	39	m_bitmap = (GdkBitmap *) NULL;
	40	}
	41
	42	wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour )
	43	{
	44	m_bitmap = (GdkBitmap *) NULL;
	45	Create( bitmap, colour );
	46	}
	47
	48	wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex )
	49	{
	50	m_bitmap = (GdkBitmap *) NULL;
	51	Create( bitmap, paletteIndex );
	52	}
	53
	54	wxMask::wxMask( const wxBitmap& bitmap )
	55	{
	56	m_bitmap = (GdkBitmap *) NULL;
	57	Create( bitmap );
	58	}
	59
	60	wxMask::~wxMask()
	61	{
	62	if (m_bitmap)
	63	gdk_bitmap_unref( m_bitmap );
	64	}
	65
	66	bool wxMask::Create( const wxBitmap& bitmap,
	67	const wxColour& colour )
	68	{
	69	if (m_bitmap)
	70	{
	71	gdk_bitmap_unref( m_bitmap );
	72	m_bitmap = (GdkBitmap*) NULL;
	73	}
	74
	75	wxImage image( bitmap );
	76	if (!image.Ok()) return FALSE;
	77
	78	GdkWindow parent = (GdkWindow) &gdk_root_parent;
	79	m_bitmap = gdk_pixmap_new( parent, image.GetWidth(), image.GetHeight(), 1 );
	80	GdkGC *gc = gdk_gc_new( m_bitmap );
	81
	82	GdkColor color;
	83	color.red = 65000;
	84	color.green = 65000;
	85	color.blue = 65000;
	86	color.pixel = 1;
	87	gdk_gc_set_foreground( gc, &color );
	88	gdk_gc_set_fill( gc, GDK_SOLID );
	89	gdk_draw_rectangle( m_bitmap, gc, TRUE, 0, 0, image.GetWidth(), image.GetHeight() );
	90
	91	unsigned char *data = image.GetData();
	92	int index = 0;
	93
	94	unsigned char red = colour.Red();
	95	unsigned char green = colour.Green();
	96	unsigned char blue = colour.Blue();
	97
	98	GdkVisual *visual = gdk_visual_get_system();
	99	int bpp = visual->depth;
	100	if ((bpp == 16) && (visual->red_mask != 0xf800)) bpp = 15;
	101	if (bpp == 15)
	102	{
	103	red = red & 0xf8;
	104	blue = blue & 0xf8;
	105	green = green & 0xf8;
	106	}
	107	if (bpp == 16)
	108	{
	109	red = red & 0xf8;
	110	blue = blue & 0xfc;
	111	green = green & 0xf8;
	112	}
	113
	114	color.red = 0;
	115	color.green = 0;
	116	color.blue = 0;
	117	color.pixel = 0;
	118	gdk_gc_set_foreground( gc, &color );
	119
	120	for (int j = 0; j < image.GetHeight(); j++)
	121	{
	122	int start_x = -1;
	123	int i;
	124	for (i = 0; i < image.GetWidth(); i++)
	125	{
	126	if ((data[index] == red) &&
	127	(data[index+1] == green) &&
	128	(data[index+2] == blue))
	129	{
	130	if (start_x == -1)
	131	start_x = i;
	132	}
	133	else
	134	{
	135	if (start_x != -1)
	136	{
	137	gdk_draw_line( m_bitmap, gc, start_x, j, i-1, j );
	138	start_x = -1;
	139	}
	140	}
	141	index += 3;
	142	}
	143	if (start_x != -1)
	144	gdk_draw_line( m_bitmap, gc, start_x, j, i, j );
	145	}
	146
	147	gdk_gc_unref( gc );
	148
	149	return TRUE;
	150	}
	151
	152	bool wxMask::Create( const wxBitmap& WXUNUSED(bitmap),
	153	int WXUNUSED(paletteIndex) )
	154	{
	155	if (m_bitmap)
	156	{
	157	gdk_bitmap_unref( m_bitmap );
	158	m_bitmap = (GdkBitmap*) NULL;
	159	}
	160
	161	wxFAIL_MSG( wxT("not implemented") );
	162
	163	return FALSE;
	164	}
	165
	166	bool wxMask::Create( const wxBitmap& bitmap )
	167	{
	168	if (m_bitmap)
	169	{
	170	gdk_bitmap_unref( m_bitmap );
	171	m_bitmap = (GdkBitmap*) NULL;
	172	}
	173
	174	if (!bitmap.Ok()) return FALSE;
	175
	176	wxCHECK_MSG( bitmap.GetBitmap(), FALSE, wxT("Cannot create mask from colour bitmap") );
	177
	178	m_bitmap = gdk_pixmap_new( (GdkWindow*) &gdk_root_parent, bitmap.GetWidth(), bitmap.GetHeight(), 1 );
	179
	180	if (!m_bitmap) return FALSE;
	181
	182	GdkGC *gc = gdk_gc_new( m_bitmap );
	183
	184	gdk_draw_bitmap( m_bitmap, gc, bitmap.GetBitmap(), 0, 0, 0, 0, bitmap.GetWidth(), bitmap.GetHeight() );
	185
	186	gdk_gc_unref( gc );
	187
	188	return TRUE;
	189	}
	190
	191	GdkBitmap *wxMask::GetBitmap() const
	192	{
	193	return m_bitmap;
	194	}
	195
	196	//-----------------------------------------------------------------------------
	197	// wxBitmap
	198	//-----------------------------------------------------------------------------
	199
	200	class wxBitmapRefData: public wxObjectRefData
	201	{
	202	public:
	203	wxBitmapRefData();
	204	~wxBitmapRefData();
	205
	206	GdkPixmap *m_pixmap;
	207	GdkBitmap *m_bitmap;
	208	wxMask *m_mask;
	209	int m_width;
	210	int m_height;
	211	int m_bpp;
	212	wxPalette *m_palette;
	213	};
	214
	215	wxBitmapRefData::wxBitmapRefData()
	216	{
	217	m_pixmap = (GdkPixmap *) NULL;
	218	m_bitmap = (GdkBitmap *) NULL;
	219	m_mask = (wxMask *) NULL;
	220	m_width = 0;
	221	m_height = 0;
	222	m_bpp = 0;
	223	m_palette = (wxPalette *) NULL;
	224	}
	225
	226	wxBitmapRefData::~wxBitmapRefData()
	227	{
	228	if (m_pixmap) gdk_pixmap_unref( m_pixmap );
	229	if (m_bitmap) gdk_bitmap_unref( m_bitmap );
	230	if (m_mask) delete m_mask;
	231	if (m_palette) delete m_palette;
	232	}
	233
	234	//-----------------------------------------------------------------------------
	235
	236	#define M_BMPDATA ((wxBitmapRefData *)m_refData)
	237
	238	IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
	239
	240	wxBitmap::wxBitmap()
	241	{
	242	if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
	243	}
	244
	245	wxBitmap::wxBitmap( int width, int height, int depth )
	246	{
	247	wxCHECK_RET( (width > 0) && (height > 0), wxT("invalid bitmap size") )
	248
	249	GdkWindow parent = (GdkWindow) &gdk_root_parent;
	250	if (depth == -1) depth = gdk_window_get_visual( parent )->depth;
	251
	252	wxCHECK_RET( (depth == gdk_window_get_visual( parent )->depth) \|\|
	253	(depth == 1), wxT("invalid bitmap depth") )
	254
	255	m_refData = new wxBitmapRefData();
	256	M_BMPDATA->m_mask = (wxMask *) NULL;
	257	M_BMPDATA->m_width = width;
	258	M_BMPDATA->m_height = height;
	259	if (depth == 1)
	260	{
	261	M_BMPDATA->m_bitmap = gdk_pixmap_new( parent, width, height, 1 );
	262	M_BMPDATA->m_bpp = 1;
	263	}
	264	else
	265	{
	266	M_BMPDATA->m_pixmap = gdk_pixmap_new( parent, width, height, depth );
	267	M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth;
	268	}
	269
	270	if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
	271	}
	272
	273	bool wxBitmap::CreateFromXpm( const char **bits )
	274	{
	275	wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") )
	276
	277	m_refData = new wxBitmapRefData();
	278
	279	GdkBitmap mask = (GdkBitmap) NULL;
	280	GdkWindow parent = (GdkWindow) &gdk_root_parent;
	281
	282	M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( parent, &mask, NULL, (gchar **) bits );
	283
	284	wxCHECK_MSG( M_BMPDATA->m_pixmap, FALSE, wxT("couldn't create pixmap") );
	285
	286	if (mask)
	287	{
	288	M_BMPDATA->m_mask = new wxMask();
	289	M_BMPDATA->m_mask->m_bitmap = mask;
	290	}
	291
	292	gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
	293
	294	M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth; // ?
	295	if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
	296
	297	return TRUE;
	298	}
	299
	300	wxBitmap::wxBitmap( const wxBitmap& bmp )
	301	{
	302	Ref( bmp );
	303
	304	if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
	305	}
	306
	307	wxBitmap::wxBitmap( const wxString &filename, int type )
	308	{
	309	LoadFile( filename, type );
	310
	311	if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
	312	}
	313
	314	wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth))
	315	{
	316	m_refData = new wxBitmapRefData();
	317
	318	M_BMPDATA->m_mask = (wxMask *) NULL;
	319	M_BMPDATA->m_bitmap =
	320	gdk_bitmap_create_from_data( (GdkWindow) &gdk_root_parent, (gchar ) bits, width, height );
	321	M_BMPDATA->m_width = width;
	322	M_BMPDATA->m_height = height;
	323	M_BMPDATA->m_bpp = 1;
	324
	325	wxCHECK_RET( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") );
	326
	327	if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
	328	}
	329
	330	wxBitmap::~wxBitmap()
	331	{
	332	if (wxTheBitmapList) wxTheBitmapList->DeleteObject(this);
	333	}
	334
	335	wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp )
	336	{
	337	if (this == bmp) return (this);
	338	Ref( bmp );
	339	return *this;
	340	}
	341
	342	bool wxBitmap::operator == ( const wxBitmap& bmp )
	343	{
	344	return m_refData == bmp.m_refData;
	345	}
	346
	347	bool wxBitmap::operator != ( const wxBitmap& bmp )
	348	{
	349	return m_refData != bmp.m_refData;
	350	}
	351
	352	bool wxBitmap::Ok() const
	353	{
	354	return (m_refData != NULL);
	355	}
	356
	357	int wxBitmap::GetHeight() const
	358	{
	359	wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
	360
	361	return M_BMPDATA->m_height;
	362	}
	363
	364	int wxBitmap::GetWidth() const
	365	{
	366	wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
	367
	368	return M_BMPDATA->m_width;
	369	}
	370
	371	int wxBitmap::GetDepth() const
	372	{
	373	wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
	374
	375	return M_BMPDATA->m_bpp;
	376	}
	377
	378	wxMask *wxBitmap::GetMask() const
	379	{
	380	wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
	381
	382	return M_BMPDATA->m_mask;
	383	}
	384
	385	void wxBitmap::SetMask( wxMask *mask )
	386	{
	387	wxCHECK_RET( Ok(), wxT("invalid bitmap") );
	388
	389	if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
	390
	391	M_BMPDATA->m_mask = mask;
	392	}
	393
	394	wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
	395	{
	396	wxCHECK_MSG( Ok() &&
	397	(rect.x >= 0) && (rect.y >= 0) &&
	398	(rect.x+rect.width <= M_BMPDATA->m_width) && (rect.y+rect.height <= M_BMPDATA->m_height),
	399	wxNullBitmap, wxT("invalid bitmap or bitmap region") );
	400
	401	wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
	402	wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
	403
	404	if (ret.GetPixmap())
	405	{
	406	GdkGC *gc = gdk_gc_new( ret.GetPixmap() );
	407	gdk_draw_pixmap( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
	408	gdk_gc_destroy( gc );
	409	}
	410	else
	411	{
	412	GdkGC *gc = gdk_gc_new( ret.GetBitmap() );
	413	gdk_draw_bitmap( ret.GetBitmap(), gc, GetBitmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
	414	gdk_gc_destroy( gc );
	415	}
	416
	417	if (GetMask())
	418	{
	419	wxMask *mask = new wxMask;
	420	GdkWindow parent = (GdkWindow) &gdk_root_parent;
	421	mask->m_bitmap = gdk_pixmap_new( parent, rect.width, rect.height, 1 );
	422
	423	GdkGC *gc = gdk_gc_new( mask->m_bitmap );
	424	gdk_draw_bitmap( mask->m_bitmap, gc, M_BMPDATA->m_mask->m_bitmap, 0, 0, rect.x, rect.y, rect.width, rect.height );
	425	gdk_gc_destroy( gc );
	426
	427	ret.SetMask( mask );
	428	}
	429
	430	return ret;
	431	}
	432
	433	bool wxBitmap::SaveFile( const wxString &name, int type, wxPalette *WXUNUSED(palette) )
	434	{
	435	wxCHECK_MSG( Ok(), FALSE, wxT("invalid bitmap") );
	436
	437	// Try to save the bitmap via wxImage handlers:
	438	{
	439	wxImage image( *this );
	440	if (image.Ok()) return image.SaveFile( name, type );
	441	}
	442
	443	return FALSE;
	444	}
	445
	446	bool wxBitmap::LoadFile( const wxString &name, int type )
	447	{
	448	UnRef();
	449
	450	if (!wxFileExists(name)) return FALSE;
	451
	452	if (type == wxBITMAP_TYPE_XPM)
	453	{
	454	m_refData = new wxBitmapRefData();
	455
	456	GdkBitmap mask = (GdkBitmap) NULL;
	457	GdkWindow parent = (GdkWindow) &gdk_root_parent;
	458
	459	M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm( parent, &mask, NULL, name.fn_str() );
	460
	461	if (mask)
	462	{
	463	M_BMPDATA->m_mask = new wxMask();
	464	M_BMPDATA->m_mask->m_bitmap = mask;
	465	}
	466
	467	gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
	468	M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth;
	469	}
	470	else // try if wxImage can load it
	471	{
	472	wxImage image;
	473	if (!image.LoadFile( name, type )) return FALSE;
	474	if (image.Ok()) *this = image.ConvertToBitmap();
	475	else return FALSE;
	476	}
	477
	478	return TRUE;
	479	}
	480
	481	wxPalette *wxBitmap::GetPalette() const
	482	{
	483	if (!Ok()) return (wxPalette *) NULL;
	484
	485	return M_BMPDATA->m_palette;
	486	}
	487
	488	void wxBitmap::SetHeight( int height )
	489	{
	490	if (!m_refData) m_refData = new wxBitmapRefData();
	491
	492	M_BMPDATA->m_height = height;
	493	}
	494
	495	void wxBitmap::SetWidth( int width )
	496	{
	497	if (!m_refData) m_refData = new wxBitmapRefData();
	498
	499	M_BMPDATA->m_width = width;
	500	}
	501
	502	void wxBitmap::SetDepth( int depth )
	503	{
	504	if (!m_refData) m_refData = new wxBitmapRefData();
	505
	506	M_BMPDATA->m_bpp = depth;
	507	}
	508
	509	void wxBitmap::SetPixmap( GdkPixmap *pixmap )
	510	{
	511	if (!m_refData) m_refData = new wxBitmapRefData();
	512
	513	M_BMPDATA->m_pixmap = pixmap;
	514	}
	515
	516	GdkPixmap *wxBitmap::GetPixmap() const
	517	{
	518	wxCHECK_MSG( Ok(), (GdkPixmap *) NULL, wxT("invalid bitmap") );
	519
	520	return M_BMPDATA->m_pixmap;
	521	}
	522
	523	GdkBitmap *wxBitmap::GetBitmap() const
	524	{
	525	wxCHECK_MSG( Ok(), (GdkBitmap *) NULL, wxT("invalid bitmap") );
	526
	527	return M_BMPDATA->m_bitmap;
	528	}