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 <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 )
{
    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 )
{
    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	Create( width, height, depth );
	247
	248	if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
	249	}
	250
	251	bool wxBitmap::Create( int width, int height, int depth )
	252	{
	253	UnRef();
	254
	255	wxCHECK_MSG( (width > 0) && (height > 0), FALSE, wxT("invalid bitmap size") )
	256
	257	GdkVisual *visual = gdk_window_get_visual( wxRootWindow->window );
	258	wxASSERT( visual );
	259
	260	if (depth == -1) depth = visual->depth;
	261
	262	wxCHECK_MSG( (depth == visual->depth) \|\|
	263	(depth == 1), FALSE, wxT("invalid bitmap depth") )
	264
	265	m_refData = new wxBitmapRefData();
	266	M_BMPDATA->m_mask = (wxMask *) NULL;
	267	M_BMPDATA->m_width = width;
	268	M_BMPDATA->m_height = height;
	269	if (depth == 1)
	270	{
	271	M_BMPDATA->m_bitmap = gdk_pixmap_new( wxRootWindow->window, width, height, 1 );
	272	M_BMPDATA->m_bpp = 1;
	273	}
	274	else
	275	{
	276	M_BMPDATA->m_pixmap = gdk_pixmap_new( wxRootWindow->window, width, height, depth );
	277	M_BMPDATA->m_bpp = visual->depth;
	278	}
	279
	280	return Ok();
	281	}
	282	bool wxBitmap::CreateFromXpm( const char **bits )
	283	{
	284	wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") )
	285
	286	GdkVisual *visual = gdk_window_get_visual( wxRootWindow->window );
	287	wxASSERT( visual );
	288
	289	m_refData = new wxBitmapRefData();
	290
	291	GdkBitmap mask = (GdkBitmap) NULL;
	292
	293	M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( wxRootWindow->window, &mask, NULL, (gchar **) bits );
	294
	295	wxCHECK_MSG( M_BMPDATA->m_pixmap, FALSE, wxT("couldn't create pixmap") );
	296
	297	if (mask)
	298	{
	299	M_BMPDATA->m_mask = new wxMask();
	300	M_BMPDATA->m_mask->m_bitmap = mask;
	301	}
	302
	303	gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
	304
	305	M_BMPDATA->m_bpp = visual->depth; // ?
	306
	307	if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
	308
	309	return TRUE;
	310	}
	311
	312	wxBitmap::wxBitmap( const wxBitmap& bmp )
	313	{
	314	Ref( bmp );
	315
	316	if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
	317	}
	318
	319	wxBitmap::wxBitmap( const wxString &filename, int type )
	320	{
	321	LoadFile( filename, type );
	322
	323	if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
	324	}
	325
	326	wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth))
	327	{
	328	m_refData = new wxBitmapRefData();
	329
	330	M_BMPDATA->m_mask = (wxMask *) NULL;
	331	M_BMPDATA->m_bitmap =
	332	gdk_bitmap_create_from_data( wxRootWindow->window, (gchar *) bits, width, height );
	333	M_BMPDATA->m_width = width;
	334	M_BMPDATA->m_height = height;
	335	M_BMPDATA->m_bpp = 1;
	336
	337	wxCHECK_RET( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") );
	338
	339	if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
	340	}
	341
	342	wxBitmap::~wxBitmap()
	343	{
	344	if (wxTheBitmapList) wxTheBitmapList->DeleteObject(this);
	345	}
	346
	347	wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp )
	348	{
	349	if (this == bmp) return (this);
	350	Ref( bmp );
	351	return *this;
	352	}
	353
	354	bool wxBitmap::operator == ( const wxBitmap& bmp )
	355	{
	356	return m_refData == bmp.m_refData;
	357	}
	358
	359	bool wxBitmap::operator != ( const wxBitmap& bmp )
	360	{
	361	return m_refData != bmp.m_refData;
	362	}
	363
	364	bool wxBitmap::Ok() const
	365	{
	366	return (m_refData != NULL);
	367	}
	368
	369	int wxBitmap::GetHeight() const
	370	{
	371	wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
	372
	373	return M_BMPDATA->m_height;
	374	}
	375
	376	int wxBitmap::GetWidth() const
	377	{
	378	wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
	379
	380	return M_BMPDATA->m_width;
	381	}
	382
	383	int wxBitmap::GetDepth() const
	384	{
	385	wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
	386
	387	return M_BMPDATA->m_bpp;
	388	}
	389
	390	wxMask *wxBitmap::GetMask() const
	391	{
	392	wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
	393
	394	return M_BMPDATA->m_mask;
	395	}
	396
	397	void wxBitmap::SetMask( wxMask *mask )
	398	{
	399	wxCHECK_RET( Ok(), wxT("invalid bitmap") );
	400
	401	if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
	402
	403	M_BMPDATA->m_mask = mask;
	404	}
	405
	406	wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
	407	{
	408	wxCHECK_MSG( Ok() &&
	409	(rect.x >= 0) && (rect.y >= 0) &&
	410	(rect.x+rect.width <= M_BMPDATA->m_width) && (rect.y+rect.height <= M_BMPDATA->m_height),
	411	wxNullBitmap, wxT("invalid bitmap or bitmap region") );
	412
	413	wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
	414	wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
	415
	416	if (ret.GetPixmap())
	417	{
	418	GdkGC *gc = gdk_gc_new( ret.GetPixmap() );
	419	gdk_draw_pixmap( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
	420	gdk_gc_destroy( gc );
	421	}
	422	else
	423	{
	424	GdkGC *gc = gdk_gc_new( ret.GetBitmap() );
	425	gdk_draw_bitmap( ret.GetBitmap(), gc, GetBitmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
	426	gdk_gc_destroy( gc );
	427	}
	428
	429	if (GetMask())
	430	{
	431	wxMask *mask = new wxMask;
	432	mask->m_bitmap = gdk_pixmap_new( wxRootWindow->window, rect.width, rect.height, 1 );
	433
	434	GdkGC *gc = gdk_gc_new( mask->m_bitmap );
	435	gdk_draw_bitmap( mask->m_bitmap, gc, M_BMPDATA->m_mask->m_bitmap, 0, 0, rect.x, rect.y, rect.width, rect.height );
	436	gdk_gc_destroy( gc );
	437
	438	ret.SetMask( mask );
	439	}
	440
	441	return ret;
	442	}
	443
	444	bool wxBitmap::SaveFile( const wxString &name, int type, wxPalette *WXUNUSED(palette) )
	445	{
	446	wxCHECK_MSG( Ok(), FALSE, wxT("invalid bitmap") );
	447
	448	// Try to save the bitmap via wxImage handlers:
	449	{
	450	wxImage image( *this );
	451	if (image.Ok()) return image.SaveFile( name, type );
	452	}
	453
	454	return FALSE;
	455	}
	456
	457	bool wxBitmap::LoadFile( const wxString &name, int type )
	458	{
	459	UnRef();
	460
	461	if (!wxFileExists(name)) return FALSE;
	462
	463	GdkVisual *visual = gdk_window_get_visual( wxRootWindow->window );
	464	wxASSERT( visual );
	465
	466	if (type == wxBITMAP_TYPE_XPM)
	467	{
	468	m_refData = new wxBitmapRefData();
	469
	470	GdkBitmap mask = (GdkBitmap) NULL;
	471
	472	M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm( wxRootWindow->window, &mask, NULL, name.fn_str() );
	473
	474	if (mask)
	475	{
	476	M_BMPDATA->m_mask = new wxMask();
	477	M_BMPDATA->m_mask->m_bitmap = mask;
	478	}
	479
	480	gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
	481
	482	M_BMPDATA->m_bpp = visual->depth;
	483	}
	484	else // try if wxImage can load it
	485	{
	486	wxImage image;
	487	if (!image.LoadFile( name, type )) return FALSE;
	488	if (image.Ok()) *this = image.ConvertToBitmap();
	489	else return FALSE;
	490	}
	491
	492	return TRUE;
	493	}
	494
	495	wxPalette *wxBitmap::GetPalette() const
	496	{
	497	if (!Ok()) return (wxPalette *) NULL;
	498
	499	return M_BMPDATA->m_palette;
	500	}
	501
	502	void wxBitmap::SetHeight( int height )
	503	{
	504	if (!m_refData) m_refData = new wxBitmapRefData();
	505
	506	M_BMPDATA->m_height = height;
	507	}
	508
	509	void wxBitmap::SetWidth( int width )
	510	{
	511	if (!m_refData) m_refData = new wxBitmapRefData();
	512
	513	M_BMPDATA->m_width = width;
	514	}
	515
	516	void wxBitmap::SetDepth( int depth )
	517	{
	518	if (!m_refData) m_refData = new wxBitmapRefData();
	519
	520	M_BMPDATA->m_bpp = depth;
	521	}
	522
	523	void wxBitmap::SetPixmap( GdkPixmap *pixmap )
	524	{
	525	if (!m_refData) m_refData = new wxBitmapRefData();
	526
	527	M_BMPDATA->m_pixmap = pixmap;
	528	}
	529
	530	void wxBitmap::SetBitmap( GdkPixmap *bitmap )
	531	{
	532	if (!m_refData) m_refData = new wxBitmapRefData();
	533
	534	M_BMPDATA->m_bitmap = bitmap;
	535	}
	536
	537	GdkPixmap *wxBitmap::GetPixmap() const
	538	{
	539	wxCHECK_MSG( Ok(), (GdkPixmap *) NULL, wxT("invalid bitmap") );
	540
	541	return M_BMPDATA->m_pixmap;
	542	}
	543
	544	GdkBitmap *wxBitmap::GetBitmap() const
	545	{
	546	wxCHECK_MSG( Ok(), (GdkBitmap *) NULL, wxT("invalid bitmap") );
	547
	548	return M_BMPDATA->m_bitmap;
	549	}