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gtk/gdk/win32/gdkpixmap.c

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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
* Copyright (C) 1998-1999 Tor Lillqvist
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "gdk.h"
#include "gdkprivate.h"
typedef struct
{
gchar *color_string;
GdkColor color;
gint transparent;
} _GdkPixmapColor;
typedef struct
{
guint ncolors;
GdkColormap *colormap;
gulong pixels[1];
} _GdkPixmapInfo;
GdkPixmap*
gdk_pixmap_new (GdkWindow *window,
gint width,
gint height,
gint depth)
{
GdkPixmap *pixmap;
GdkWindowPrivate *private;
GdkWindowPrivate *window_private;
struct {
BITMAPINFOHEADER bmiHeader;
union {
WORD bmiIndices[256];
DWORD bmiMasks[3];
RGBQUAD bmiColors[256];
} u;
} bmi;
UINT iUsage;
HDC hdc;
GdkVisual *visual;
guchar *bits;
gint i;
g_return_val_if_fail ((window != NULL) || (depth != -1), NULL);
g_return_val_if_fail ((width != 0) && (height != 0), NULL);
if (!window)
window = (GdkWindow*) &gdk_root_parent;
window_private = (GdkWindowPrivate*) window;
if (window_private->destroyed)
return NULL;
if (depth == -1)
depth = gdk_window_get_visual (window)->depth;
GDK_NOTE (MISC, g_print ("gdk_pixmap_new: %dx%dx%d\n", width, height, depth));
private = g_new0 (GdkWindowPrivate, 1);
pixmap = (GdkPixmap*) private;
private->window_type = GDK_WINDOW_PIXMAP;
visual = gdk_window_get_visual (window);
#if 0
if (depth == 1)
{
if ((private->xwindow =
CreateBitmap (width, height, 1, 1, NULL)) == NULL)
{
g_warning ("gdk_pixmap_new: CreateBitmap failed");
g_free (private);
return NULL;
}
private->colormap = NULL;
}
else
{
if (depth != visual->depth)
g_warning ("gdk_pixmap_new: depth %d doesn't match display depth %d",
depth, visual->depth);
if ((hdc = GetDC (window_private->xwindow)) == NULL)
{
g_warning ("gdk_pixmap_new: GetDC failed");
g_free (private);
return NULL;
}
if ((private->xwindow =
CreateCompatibleBitmap (hdc, width, height)) == NULL)
{
g_warning ("gdk_pixmap_new: %dx%d CreateCompatibleBitmap failed",
width, height);
ReleaseDC (window_private->xwindow, hdc);
g_free (private);
return NULL;
}
ReleaseDC (window_private->xwindow, hdc);
private->colormap = window_private->colormap;
if (private->colormap == NULL)
private->colormap = gdk_colormap_get_system ();
}
#else
if ((hdc = GetDC (window_private->xwindow)) == NULL)
{
g_warning ("gdk_pixmap_new: GetDC failed");
g_free (private);
return NULL;
}
bmi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
bmi.bmiHeader.biWidth = width;
bmi.bmiHeader.biHeight = -height;
bmi.bmiHeader.biPlanes = 1;
if (depth == 15)
bmi.bmiHeader.biBitCount = 16;
else
bmi.bmiHeader.biBitCount = depth;
#if 1
if (depth == 16)
bmi.bmiHeader.biCompression = BI_BITFIELDS;
else
#endif
bmi.bmiHeader.biCompression = BI_RGB;
bmi.bmiHeader.biSizeImage = 0;
bmi.bmiHeader.biXPelsPerMeter =
bmi.bmiHeader.biYPelsPerMeter = 0;
bmi.bmiHeader.biClrUsed = 0;
bmi.bmiHeader.biClrImportant = 0;
iUsage = DIB_RGB_COLORS;
if (depth == 1)
{
bmi.u.bmiColors[0].rgbBlue =
bmi.u.bmiColors[0].rgbGreen =
bmi.u.bmiColors[0].rgbRed = 0x00;
bmi.u.bmiColors[0].rgbReserved = 0x00;
bmi.u.bmiColors[1].rgbBlue =
bmi.u.bmiColors[1].rgbGreen =
bmi.u.bmiColors[1].rgbRed = 0xFF;
bmi.u.bmiColors[1].rgbReserved = 0x00;
private->colormap = NULL;
}
else
{
private->colormap = window_private->colormap;
if (private->colormap == NULL)
private->colormap = gdk_colormap_get_system ();
if (depth == 8)
{
iUsage = DIB_PAL_COLORS;
for (i = 0; i < 256; i++)
bmi.u.bmiIndices[i] = i;
}
else
{
if (depth != visual->depth)
g_warning ("gdk_pixmap_new: depth %d doesn't match display depth %d",
depth, visual->depth);
#if 1
if (depth == 16)
{
bmi.u.bmiMasks[0] = visual->red_mask;
bmi.u.bmiMasks[1] = visual->green_mask;
bmi.u.bmiMasks[2] = visual->blue_mask;
}
#endif
}
}
if ((private->xwindow =
CreateDIBSection (hdc, (BITMAPINFO *) &bmi,
iUsage, &bits, NULL, 0)) == NULL)
{
g_warning ("gdk_pixmap_new: CreateDIBSection failed: %d", GetLastError ());
ReleaseDC (window_private->xwindow, hdc);
g_free (private);
return NULL;
}
ReleaseDC (window_private->xwindow, hdc);
#endif
GDK_NOTE (MISC, g_print ("... = %#x\n", private->xwindow));
private->parent = NULL;
private->x = 0;
private->y = 0;
private->width = width;
private->height = height;
private->resize_count = 0;
private->ref_count = 1;
private->destroyed = 0;
gdk_xid_table_insert (&private->xwindow, pixmap);
return pixmap;
}
GdkPixmap *
gdk_pixmap_create_on_shared_image (GdkImage **image_return,
GdkWindow *window,
GdkVisual *visual,
gint width,
gint height,
gint depth)
{
GdkPixmap *pixmap;
GdkImagePrivate *image_private;
GdkWindowPrivate *private;
GdkWindowPrivate *window_private;
g_return_val_if_fail (window != NULL, NULL);
window_private = (GdkWindowPrivate *) window;
if (depth == 1)
*image_return = gdk_image_bitmap_new (GDK_IMAGE_SHARED_PIXMAP, visual, width, height);
else
{
g_return_val_if_fail (depth == visual->depth, NULL);
*image_return = gdk_image_new (GDK_IMAGE_SHARED_PIXMAP, visual, width, height);
}
g_return_val_if_fail (*image_return != NULL, NULL);
image_private = (GdkImagePrivate *) *image_return;
private = g_new0 (GdkWindowPrivate, 1);
pixmap = (GdkPixmap*) private;
private->xwindow = image_private->ximage;
private->window_type = GDK_WINDOW_PIXMAP;
private->colormap = window_private->colormap;
private->parent = NULL;
private->x = 0;
private->y = 0;
private->width = width;
private->height = height;
private->resize_count = 0;
private->ref_count = 1;
private->destroyed = 0;
gdk_xid_table_insert (&private->xwindow, pixmap);
GDK_NOTE (MISC,
g_print ("gdk_pixmap_create_on_shared_image: %dx%dx%d = %#x\n",
width, height, depth, private->xwindow));
return pixmap;
}
static unsigned char mirror[256] = {
0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
};
GdkPixmap *
gdk_bitmap_create_from_data (GdkWindow *window,
const gchar *data,
gint width,
gint height)
{
GdkPixmap *pixmap;
GdkWindowPrivate *private;
GdkWindowPrivate *window_private;
gint i, j, bpl, aligned_bpl;
guchar *bits;
g_return_val_if_fail (data != NULL, NULL);
g_return_val_if_fail ((width != 0) && (height != 0), NULL);
if (!window)
window = (GdkWindow*) &gdk_root_parent;
window_private = (GdkWindowPrivate*) window;
if (window_private->destroyed)
return NULL;
private = g_new0 (GdkWindowPrivate, 1);
pixmap = (GdkPixmap*) private;
private->parent = NULL;
private->window_type = GDK_WINDOW_PIXMAP;
private->x = 0;
private->y = 0;
private->width = width;
private->height = height;
private->resize_count = 0;
private->ref_count = 1;
private->destroyed = FALSE;
bpl = ((width - 1) / 8 + 1);
aligned_bpl = ((bpl - 1) / 2 + 1) * 2;
bits = g_malloc (aligned_bpl * height);
for (i = 0; i < height; i++)
for (j = 0; j < bpl; j++)
bits[i*aligned_bpl + j] = mirror[(guchar) data[i*bpl + j]];
private->xwindow = CreateBitmap (width, height, 1, 1, bits);
GDK_NOTE (MISC, g_print ("gdk_bitmap_create_from_data: %dx%d = %#x\n",
width, height, private->xwindow));
g_free (bits);
private->colormap = NULL;
gdk_xid_table_insert (&private->xwindow, pixmap);
return pixmap;
}
GdkPixmap*
gdk_pixmap_create_from_data (GdkWindow *window,
const gchar *data,
gint width,
gint height,
gint depth,
GdkColor *fg,
GdkColor *bg)
{
/* Oh wow. I struggled with dozens of lines of code trying to get
* this right using a monochrome Win32 bitmap created from data, and
* a colour DIB section as the result, trying setting pens,
* background colors, whatnot and BitBlt:ing. Nope. Then finally I
* realized it's much easier to do it using gdk...:
*/
GdkPixmap *result = gdk_pixmap_new (window, width, height, depth);
GdkPixmap *source = gdk_bitmap_create_from_data (window, data, width, height);
GdkGC *gc = gdk_gc_new (result);
gdk_gc_set_foreground (gc, fg);
gdk_gc_set_background (gc, bg);
gdk_draw_pixmap (result, gc, source, 0, 0, 0, 0, width, height);
gdk_pixmap_unref (source);
gdk_gc_unref (gc);
GDK_NOTE (MISC, g_print ("gdk_pixmap_create_from_data: %dx%dx%d = %#x\n",
width, height, depth,
((GdkPixmapPrivate *) result)->xwindow));
return result;
}
static gint
gdk_pixmap_seek_string (FILE *infile,
const gchar *str,
gint skip_comments)
{
char instr[1024];
while (!feof (infile))
{
fscanf (infile, "%1023s", instr);
if (skip_comments == TRUE && strcmp (instr, "/*") == 0)
{
fscanf (infile, "%1023s", instr);
while (!feof (infile) && strcmp (instr, "*/") != 0)
fscanf (infile, "%1023s", instr);
fscanf(infile, "%1023s", instr);
}
if (strcmp (instr, str)==0)
return TRUE;
}
return FALSE;
}
static gint
gdk_pixmap_seek_char (FILE *infile,
gchar c)
{
gint b, oldb;
while ((b = getc(infile)) != EOF)
{
if (c != b && b == '/')
{
b = getc (infile);
if (b == EOF)
return FALSE;
else if (b == '*') /* we have a comment */
{
b = -1;
do
{
oldb = b;
b = getc (infile);
if (b == EOF)
return FALSE;
}
while (!(oldb == '*' && b == '/'));
}
}
else if (c == b)
return TRUE;
}
return FALSE;
}
static gint
gdk_pixmap_read_string (FILE *infile,
gchar **buffer,
guint *buffer_size)
{
gint c;
guint cnt = 0, bufsiz, ret = FALSE;
gchar *buf;
buf = *buffer;
bufsiz = *buffer_size;
if (buf == NULL)
{
bufsiz = 10 * sizeof (gchar);
buf = g_new(gchar, bufsiz);
}
do
c = getc (infile);
while (c != EOF && c != '"');
if (c != '"')
goto out;
while ((c = getc(infile)) != EOF)
{
if (cnt == bufsiz)
{
guint new_size = bufsiz * 2;
if (new_size > bufsiz)
bufsiz = new_size;
else
goto out;
buf = (gchar *) g_realloc (buf, bufsiz);
buf[bufsiz-1] = '\0';
}
if (c != '"')
buf[cnt++] = c;
else
{
buf[cnt] = 0;
ret = TRUE;
break;
}
}
out:
buf[bufsiz-1] = '\0'; /* ensure null termination for errors */
*buffer = buf;
*buffer_size = bufsiz;
return ret;
}
static gchar*
gdk_pixmap_skip_whitespaces (gchar *buffer)
{
gint32 index = 0;
while (buffer[index] != 0 && (buffer[index] == 0x20 || buffer[index] == 0x09))
index++;
return &buffer[index];
}
static gchar*
gdk_pixmap_skip_string (gchar *buffer)
{
gint32 index = 0;
while (buffer[index] != 0 && buffer[index] != 0x20 && buffer[index] != 0x09)
index++;
return &buffer[index];
}
#define MAX_COLOR_LEN 120
static gchar*
gdk_pixmap_extract_color (gchar *buffer)
{
gint counter, numnames;
gchar *ptr = NULL, ch, temp[128];
gchar color[MAX_COLOR_LEN], *retcol;
gint space;
counter = 0;
while (ptr == NULL)
{
if (buffer[counter] == 'c')
{
ch = buffer[counter + 1];
if (ch == 0x20 || ch == 0x09)
ptr = &buffer[counter + 1];
}
else if (buffer[counter] == 0)
return NULL;
counter++;
}
ptr = gdk_pixmap_skip_whitespaces (ptr);
if (ptr[0] == 0)
return NULL;
else if (ptr[0] == '#')
{
counter = 1;
while (ptr[counter] != 0 &&
((ptr[counter] >= '0' && ptr[counter] <= '9') ||
(ptr[counter] >= 'a' && ptr[counter] <= 'f') ||
(ptr[counter] >= 'A' && ptr[counter] <= 'F')))
counter++;
retcol = g_new (gchar, counter+1);
strncpy (retcol, ptr, counter);
retcol[counter] = 0;
return retcol;
}
color[0] = 0;
numnames = 0;
space = MAX_COLOR_LEN - 1;
while (space > 0)
{
sscanf (ptr, "%127s", temp);
if (((gint)ptr[0] == 0) ||
(strcmp ("s", temp) == 0) || (strcmp ("m", temp) == 0) ||
(strcmp ("g", temp) == 0) || (strcmp ("g4", temp) == 0))
{
break;
}
else
{
if (numnames > 0)
{
space -= 1;
strcat (color, " ");
}
strncat (color, temp, space);
space -= MIN (space, strlen (temp));
ptr = gdk_pixmap_skip_string (ptr);
ptr = gdk_pixmap_skip_whitespaces (ptr);
numnames++;
}
}
retcol = g_strdup (color);
return retcol;
}
enum buffer_op
{
op_header,
op_cmap,
op_body
};
static void
gdk_xpm_destroy_notify (gpointer data)
{
_GdkPixmapInfo *info = (_GdkPixmapInfo *)data;
GdkColor color;
int i;
for (i=0; i<info->ncolors; i++)
{
color.pixel = info->pixels[i];
gdk_colormap_free_colors (info->colormap, &color, 1);
}
gdk_colormap_unref (info->colormap);
g_free (info);
}
static GdkPixmap *
_gdk_pixmap_create_from_xpm (GdkWindow *window,
GdkColormap *colormap,
GdkBitmap **mask,
GdkColor *transparent_color,
gchar * (*get_buf) (enum buffer_op op,
gpointer handle),
gpointer handle)
{
GdkPixmap *pixmap = NULL;
GdkImage *image = NULL;
GdkVisual *visual;
GdkGC *gc = NULL;
GdkColor tmp_color;
gint width, height, num_cols, cpp, n, ns, cnt, xcnt, ycnt, wbytes;
gchar *buffer, pixel_str[32];
gchar *name_buf;
_GdkPixmapColor *color = NULL, *fallbackcolor = NULL;
_GdkPixmapColor *colors = NULL;
gulong index;
GHashTable *color_hash = NULL;
_GdkPixmapInfo *color_info = NULL;
if ((window == NULL) && (colormap == NULL))
g_warning ("Creating pixmap from xpm with NULL window and colormap");
if (window == NULL)
window = (GdkWindow *)&gdk_root_parent;
if (colormap == NULL)
{
colormap = gdk_window_get_colormap (window);
visual = gdk_window_get_visual (window);
}
else
visual = ((GdkColormapPrivate *)colormap)->visual;
buffer = (*get_buf) (op_header, handle);
if (buffer == NULL)
return NULL;
sscanf (buffer,"%d %d %d %d", &width, &height, &num_cols, &cpp);
if (cpp >= 32)
{
g_warning ("Pixmap has more than 31 characters per color");
return NULL;
}
color_hash = g_hash_table_new (g_str_hash, g_str_equal);
if (transparent_color == NULL)
{
gdk_color_white (colormap, &tmp_color);
transparent_color = &tmp_color;
}
/* For pseudo-color and grayscale visuals, we have to remember
* the colors we allocated, so we can free them later.
*/
if ((visual->type == GDK_VISUAL_PSEUDO_COLOR) ||
(visual->type == GDK_VISUAL_GRAYSCALE))
{
color_info = g_malloc (sizeof (_GdkPixmapInfo) +
sizeof(gulong) * (num_cols - 1));
color_info->ncolors = num_cols;
color_info->colormap = colormap;
gdk_colormap_ref (colormap);
}
name_buf = g_new (gchar, num_cols * (cpp+1));
colors = g_new (_GdkPixmapColor, num_cols);
for (cnt = 0; cnt < num_cols; cnt++)
{
gchar *color_name;
buffer = (*get_buf) (op_cmap, handle);
if (buffer == NULL)
goto error;
color = &colors[cnt];
color->color_string = &name_buf [cnt * (cpp + 1)];
strncpy (color->color_string, buffer, cpp);
color->color_string[cpp] = 0;
buffer += strlen (color->color_string);
color->transparent = FALSE;
color_name = gdk_pixmap_extract_color (buffer);
if (color_name == NULL ||
gdk_color_parse (color_name, &color->color) == FALSE)
{
color->color = *transparent_color;
color->transparent = TRUE;
}
g_free (color_name);
/* FIXME: The remaining slowness appears to happen in this
function. */
gdk_color_alloc (colormap, &color->color);
if (color_info)
color_info->pixels[cnt] = color->color.pixel;
g_hash_table_insert (color_hash, color->color_string, color);
if (cnt == 0)
fallbackcolor = color;
}
index = 0;
image = gdk_image_new (GDK_IMAGE_FASTEST, visual, width, height);
if (mask)
{
/* The pixmap mask is just a bits pattern.
* Color 0 is used for background and 1 for foreground.
* We don't care about the colormap, we just need 0 and 1.
*/
GdkColor mask_pattern;
*mask = gdk_pixmap_new (window, width, height, 1);
gc = gdk_gc_new (*mask);
mask_pattern.pixel = 0;
gdk_gc_set_foreground (gc, &mask_pattern);
gdk_draw_rectangle (*mask, gc, TRUE, 0, 0, -1, -1);
mask_pattern.pixel = 1;
gdk_gc_set_foreground (gc, &mask_pattern);
}
wbytes = width * cpp;
for (ycnt = 0; ycnt < height; ycnt++)
{
buffer = (*get_buf) (op_body, handle);
/* FIXME: this slows things down a little - it could be
* integrated into the strncpy below, perhaps. OTOH, strlen
* is fast.
*/
if ((buffer == NULL) || strlen (buffer) < wbytes)
continue;
for (n = 0, cnt = 0, xcnt = 0; n < wbytes; n += cpp, xcnt++)
{
strncpy (pixel_str, &buffer[n], cpp);
pixel_str[cpp] = 0;
ns = 0;
color = g_hash_table_lookup (color_hash, pixel_str);
if (!color) /* screwed up XPM file */
color = fallbackcolor;
gdk_image_put_pixel (image, xcnt, ycnt, color->color.pixel);
if (mask && color->transparent)
{
if (cnt < xcnt)
gdk_draw_line (*mask, gc, cnt, ycnt, xcnt - 1, ycnt);
cnt = xcnt + 1;
}
}
if (mask && (cnt < xcnt))
gdk_draw_line (*mask, gc, cnt, ycnt, xcnt - 1, ycnt);
}
error:
if (mask)
gdk_gc_destroy (gc);
if (image != NULL)
{
pixmap = gdk_pixmap_new (window, width, height, visual->depth);
if (color_info)
gdk_drawable_set_data (pixmap, "gdk-xpm", color_info,
gdk_xpm_destroy_notify);
gc = gdk_gc_new (pixmap);
gdk_gc_set_foreground (gc, transparent_color);
gdk_draw_image (pixmap, gc, image, 0, 0, 0, 0, image->width, image->height);
gdk_gc_destroy (gc);
gdk_image_destroy (image);
}
else if (color_info)
gdk_xpm_destroy_notify (color_info);
if (color_hash != NULL)
g_hash_table_destroy (color_hash);
if (colors != NULL)
g_free (colors);
if (name_buf != NULL)
g_free (name_buf);
return pixmap;
}
struct file_handle
{
FILE *infile;
gchar *buffer;
guint buffer_size;
};
static gchar *
file_buffer (enum buffer_op op, gpointer handle)
{
struct file_handle *h = handle;
switch (op)
{
case op_header:
if (gdk_pixmap_seek_string (h->infile, "XPM", FALSE) != TRUE)
break;
if (gdk_pixmap_seek_char (h->infile,'{') != TRUE)
break;
/* Fall through to the next gdk_pixmap_seek_char. */
case op_cmap:
gdk_pixmap_seek_char (h->infile, '"');
fseek (h->infile, -1, SEEK_CUR);
/* Fall through to the gdk_pixmap_read_string. */
case op_body:
gdk_pixmap_read_string (h->infile, &h->buffer, &h->buffer_size);
return h->buffer;
}
return 0;
}
GdkPixmap*
gdk_pixmap_colormap_create_from_xpm (GdkWindow *window,
GdkColormap *colormap,
GdkBitmap **mask,
GdkColor *transparent_color,
const gchar *filename)
{
struct file_handle h;
GdkPixmap *pixmap = NULL;
memset (&h, 0, sizeof (h));
h.infile = fopen (filename, "rb");
if (h.infile != NULL)
{
pixmap = _gdk_pixmap_create_from_xpm (window, colormap, mask,
transparent_color,
file_buffer, &h);
fclose (h.infile);
g_free (h.buffer);
}
return pixmap;
}
GdkPixmap*
gdk_pixmap_create_from_xpm (GdkWindow *window,
GdkBitmap **mask,
GdkColor *transparent_color,
const gchar *filename)
{
return gdk_pixmap_colormap_create_from_xpm (window, NULL, mask,
transparent_color, filename);
}
struct mem_handle
{
gchar **data;
int offset;
};
static gchar *
mem_buffer (enum buffer_op op, gpointer handle)
{
struct mem_handle *h = handle;
switch (op)
{
case op_header:
case op_cmap:
case op_body:
if (h->data[h->offset])
return h->data[h->offset ++];
}
return 0;
}
GdkPixmap*
gdk_pixmap_colormap_create_from_xpm_d (GdkWindow *window,
GdkColormap *colormap,
GdkBitmap **mask,
GdkColor *transparent_color,
gchar **data)
{
struct mem_handle h;
GdkPixmap *pixmap = NULL;
memset (&h, 0, sizeof (h));
h.data = data;
pixmap = _gdk_pixmap_create_from_xpm (window, colormap, mask,
transparent_color,
mem_buffer, &h);
return pixmap;
}
GdkPixmap*
gdk_pixmap_create_from_xpm_d (GdkWindow *window,
GdkBitmap **mask,
GdkColor *transparent_color,
gchar **data)
{
return gdk_pixmap_colormap_create_from_xpm_d (window, NULL, mask,
transparent_color, data);
}
GdkPixmap*
gdk_pixmap_foreign_new (guint32 anid)
{
GdkPixmap *pixmap;
GdkWindowPrivate *window_private;
GdkWindowPrivate *private;
HBITMAP xpixmap;
SIZE size;
unsigned int x_ret, y_ret, w_ret, h_ret, bw_ret, depth_ret;
/* check to make sure we were passed something at
least a little sane */
g_return_val_if_fail((anid != 0), NULL);
/* set the pixmap to the passed in value */
xpixmap = (HBITMAP) anid;
/* get the root window */
window_private = &gdk_root_parent;
/* get information about the BITMAP to fill in the structure for
the gdk window */
GetBitmapDimensionEx (xpixmap, &size);
w_ret = size.cx;
h_ret = size.cy;
/* allocate a new gdk pixmap */
private = g_new(GdkWindowPrivate, 1);
pixmap = (GdkPixmap *)private;
private->window_type = GDK_WINDOW_PIXMAP;
private->xwindow = xpixmap;
private->colormap = NULL;
private->parent = NULL;
private->x = 0;
private->y = 0;
private->width = w_ret;
private->height = h_ret;
private->resize_count = 0;
private->ref_count = 1;
private->destroyed = 0;
gdk_xid_table_insert(&private->xwindow, pixmap);
return pixmap;
}
GdkPixmap*
gdk_pixmap_ref (GdkPixmap *pixmap)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)pixmap;
g_return_val_if_fail (pixmap != NULL, NULL);
private->ref_count += 1;
return pixmap;
}
void
gdk_pixmap_unref (GdkPixmap *pixmap)
{
GdkWindowPrivate *private = (GdkWindowPrivate *)pixmap;
g_return_if_fail(pixmap != NULL);
private->ref_count -= 1;
GDK_NOTE (MISC, g_print ("gdk_pixmap_unref: %#x %d%s\n",
private->xwindow, private->ref_count,
(private->ref_count == 0 ? " freeing" : "")));
if (private->ref_count == 0)
{
if (!DeleteObject (private->xwindow))
g_warning ("gdk_pixmap_unref: DeleteObject failed");
gdk_xid_table_remove (private->xwindow);
g_dataset_destroy (private);
g_free (private);
}
}
GdkBitmap *
gdk_bitmap_ref (GdkBitmap *bitmap)
{
return (GdkBitmap *)gdk_pixmap_ref ((GdkPixmap *)bitmap);
}
void
gdk_bitmap_unref (GdkBitmap *bitmap)
{
gdk_pixmap_unref ((GdkPixmap *)bitmap);
}
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