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>

//-----------------------------------------------------------------------------
// 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;
        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( wxRootWindow->window, 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") )

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

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

    wxCHECK_RET( (depth == visual->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( 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;
    }

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

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 )
{
    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;
        mask->m_bitmap = gdk_pixmap_new( wxRootWindow->window, 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;

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