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Diffstat (limited to 'gdk/x11/gdkpixmap-x11.c')
-rw-r--r--gdk/x11/gdkpixmap-x11.c657
1 files changed, 657 insertions, 0 deletions
diff --git a/gdk/x11/gdkpixmap-x11.c b/gdk/x11/gdkpixmap-x11.c
new file mode 100644
index 000000000..d2d96b6da
--- /dev/null
+++ b/gdk/x11/gdkpixmap-x11.c
@@ -0,0 +1,657 @@
+/* GDK - The GIMP Drawing Kit
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include "../config.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <X11/Xlib.h>
+
+#include "gdk.h"
+#include "gdkprivate.h"
+
+typedef struct
+{
+ gchar *color_string;
+ GdkColor color;
+ gint transparent;
+} _GdkPixmapColor;
+
+GdkPixmap*
+gdk_pixmap_new (GdkWindow *window,
+ gint width,
+ gint height,
+ gint depth)
+{
+ GdkPixmap *pixmap;
+ GdkWindowPrivate *private;
+ GdkWindowPrivate *window_private;
+
+ if (!window)
+ window = (GdkWindow*) &gdk_root_parent;
+
+ if (depth == -1)
+ gdk_window_get_geometry (window, NULL, NULL, NULL, NULL, &depth);
+
+ private = g_new (GdkWindowPrivate, 1);
+ pixmap = (GdkPixmap*) private;
+
+ window_private = (GdkWindowPrivate*) window;
+
+ private->xdisplay = window_private->xdisplay;
+ private->window_type = GDK_WINDOW_PIXMAP;
+ private->xwindow = XCreatePixmap (private->xdisplay, window_private->xwindow,
+ width, height, depth);
+ 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_bitmap_create_from_data (GdkWindow *window,
+ gchar *data,
+ gint width,
+ gint height)
+{
+ GdkPixmap *pixmap;
+ GdkWindowPrivate *private;
+ GdkWindowPrivate *window_private;
+
+ g_return_val_if_fail (data != NULL, NULL);
+
+ if (!window)
+ window = (GdkWindow*) &gdk_root_parent;
+
+ private = g_new (GdkWindowPrivate, 1);
+ pixmap = (GdkPixmap*) private;
+
+ window_private = (GdkWindowPrivate*) window;
+
+ private->parent = NULL;
+ private->xdisplay = window_private->xdisplay;
+ 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;
+
+ private->xwindow = XCreateBitmapFromData (private->xdisplay,
+ window_private->xwindow,
+ data, width, height);
+
+ gdk_xid_table_insert (&private->xwindow, pixmap);
+
+ return pixmap;
+}
+
+GdkPixmap*
+gdk_pixmap_create_from_data (GdkWindow *window,
+ gchar *data,
+ gint width,
+ gint height,
+ gint depth,
+ GdkColor *fg,
+ GdkColor *bg)
+{
+ GdkPixmap *pixmap;
+ GdkWindowPrivate *private;
+ GdkWindowPrivate *window_private;
+
+ g_return_val_if_fail (data != NULL, NULL);
+ g_return_val_if_fail (fg != NULL, NULL);
+ g_return_val_if_fail (bg != NULL, NULL);
+
+ if (!window)
+ window = (GdkWindow*) &gdk_root_parent;
+
+ if (depth == -1)
+ gdk_window_get_geometry (window, NULL, NULL, NULL, NULL, &depth);
+
+ private = g_new (GdkWindowPrivate, 1);
+ pixmap = (GdkPixmap*) private;
+
+ window_private = (GdkWindowPrivate*) window;
+
+ private->parent = NULL;
+ private->xdisplay = window_private->xdisplay;
+ 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;
+
+ private->xwindow = XCreatePixmapFromBitmapData (private->xdisplay,
+ window_private->xwindow,
+ data, width, height,
+ fg->pixel, bg->pixel, depth);
+
+ gdk_xid_table_insert (&private->xwindow, pixmap);
+
+ return pixmap;
+}
+
+gint
+gdk_pixmap_seek_string (FILE *infile,
+ const gchar *str,
+ gint skip_comments)
+{
+ char instr[1024];
+
+ while (!feof (infile))
+ {
+ fscanf (infile, "%s", instr);
+ if (skip_comments == TRUE && strcmp (instr, "/*") == 0)
+ {
+ fscanf (infile, "%s", instr);
+ while (!feof (infile) && strcmp (instr, "*/") != 0)
+ fscanf (infile, "%s", instr);
+ fscanf(infile, "%s", instr);
+ }
+ if (strcmp (instr, str)==0)
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+gint
+gdk_pixmap_seek_char (FILE *infile,
+ gchar c)
+{
+ gchar b, oldb;
+
+ while (!feof (infile))
+ {
+ fscanf(infile, "%c", &b);
+ if (c != b && b == '/')
+ {
+ fscanf (infile, "%c", &b);
+ if (b == '*')
+ {
+ oldb = b;
+ while (!feof (infile) && !(oldb == '*' && b == '/'))
+ {
+ oldb = b;
+ fscanf (infile, "%c", &b);
+ }
+ fscanf (infile, "%c", &b);
+ }
+ }
+ if (c == b)
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+gint
+gdk_pixmap_read_string (FILE *infile,
+ gchar **buffer,
+ int *buffer_size)
+{
+ gchar c;
+ gint cnt = 0;
+
+ if ((*buffer) == NULL)
+ {
+ (*buffer_size) = 10 * sizeof (gchar);
+ (*buffer) = (gchar *) malloc (*buffer_size);
+ }
+
+ do
+ fscanf (infile, "%c", &c);
+ while (!feof (infile) && c != '"');
+
+ if (c != '"')
+ return FALSE;
+
+ while (!feof (infile))
+ {
+ fscanf (infile, "%c", &c);
+
+ if (cnt == (*buffer_size))
+ {
+ (*buffer_size) *= 2;
+ (*buffer) = (gchar *) realloc ((*buffer), *buffer_size);
+ }
+
+ if (c != '"')
+ (*buffer)[cnt++] = c;
+ else
+ {
+ (*buffer)[cnt++] = 0;
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
+gchar*
+gdk_pixmap_skip_whitespaces (gchar *buffer)
+{
+ gint32 index = 0;
+
+ while (buffer[index] != 0 && (buffer[index] == 0x20 || buffer[index] == 0x09))
+ index++;
+
+ return &buffer[index];
+}
+
+gchar*
+gdk_pixmap_skip_string (gchar *buffer)
+{
+ gint32 index = 0;
+
+ while (buffer[index] != 0 && buffer[index] != 0x20 && buffer[index] != 0x09)
+ index++;
+
+ return &buffer[index];
+}
+
+gchar*
+gdk_pixmap_extract_color (gchar *buffer)
+{
+ gint counter, finished = FALSE, numnames;
+ gchar *ptr = NULL, ch, temp[128];
+ gchar color[128], *retcol;
+
+ 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++;
+ }
+
+ if (ptr == NULL)
+ return NULL;
+
+ ptr = gdk_pixmap_skip_whitespaces (ptr);
+
+ if (ptr[0] == 0)
+ return NULL;
+ else if (ptr[0] == '#')
+ {
+ retcol = g_new(gchar, strlen (ptr) + 1);
+ strcpy (retcol, ptr);
+ return retcol;
+ }
+
+ color[0] = 0;
+ numnames = 0;
+
+ while (finished == FALSE)
+ {
+ sscanf (ptr, "%s", temp);
+
+ if ((gint)ptr[0] == 0 || strcmp ("s", temp) == 0 || strcmp ("m", temp) == 0 ||
+ strcmp ("g", temp) == 0 || strcmp ("g4", temp) == 0)
+ finished = TRUE;
+ else
+ {
+ if (numnames > 0)
+ strcat (color, " ");
+ strcat (color, temp);
+ ptr = gdk_pixmap_skip_string (ptr);
+ ptr = gdk_pixmap_skip_whitespaces (ptr);
+ numnames++;
+ }
+ }
+
+ retcol = g_new(gchar, strlen (color) + 1);
+ strcpy (retcol, color);
+ return retcol;
+}
+
+
+GdkPixmap*
+gdk_pixmap_create_from_xpm (GdkWindow *window,
+ GdkBitmap **mask,
+ GdkColor *transparent_color,
+ const gchar *filename)
+{
+ FILE *infile = NULL;
+ GdkPixmap *pixmap = NULL;
+ GdkImage *image = NULL;
+ GdkColormap *colormap;
+ GdkVisual *visual;
+ GdkGC *gc;
+ GdkColor tmp_color;
+ gint width, height, num_cols, cpp, cnt, n, ns, xcnt, ycnt;
+ gchar *buffer = NULL, *color_name = NULL, pixel_str[32];
+ guint buffer_size = 0;
+ _GdkPixmapColor *colors = NULL, *color = NULL;
+ gulong index;
+
+ if (!window)
+ window = (GdkWindow*) &gdk_root_parent;
+
+ infile = fopen (filename, "rb");
+ if (infile != NULL)
+ {
+ if (gdk_pixmap_seek_string (infile, "XPM", FALSE) == TRUE)
+ {
+ if (gdk_pixmap_seek_char (infile,'{') == TRUE)
+ {
+ gdk_pixmap_seek_char (infile, '"');
+ fseek (infile, -1, SEEK_CUR);
+ gdk_pixmap_read_string (infile, &buffer, &buffer_size);
+
+ sscanf (buffer,"%d %d %d %d", &width, &height, &num_cols, &cpp);
+
+ colors = g_new(_GdkPixmapColor, num_cols);
+
+ colormap = gdk_window_get_colormap (window);
+ visual = gdk_window_get_visual (window);
+
+ if (transparent_color == NULL)
+ {
+ gdk_color_white (colormap, &tmp_color);
+ transparent_color = &tmp_color;
+ }
+
+ for (cnt = 0; cnt < num_cols; cnt++)
+ {
+ gdk_pixmap_seek_char (infile, '"');
+ fseek (infile, -1, SEEK_CUR);
+ gdk_pixmap_read_string (infile, &buffer, &buffer_size);
+
+ colors[cnt].color_string = g_new(gchar, cpp + 1);
+ for (n = 0; n < cpp; n++)
+ colors[cnt].color_string[n] = buffer[n];
+ colors[cnt].color_string[n] = 0;
+ colors[cnt].transparent = FALSE;
+
+ if (color_name != NULL)
+ g_free (color_name);
+
+ color_name = gdk_pixmap_extract_color (&buffer[cpp]);
+
+ if (color_name != NULL)
+ {
+ if (gdk_color_parse (color_name, &colors[cnt].color) == FALSE)
+ {
+ colors[cnt].color = *transparent_color;
+ colors[cnt].transparent = TRUE;
+ }
+ }
+ else
+ {
+ colors[cnt].color = *transparent_color;
+ colors[cnt].transparent = TRUE;
+ }
+
+ gdk_color_alloc (colormap, &colors[cnt].color);
+ }
+
+ index = 0;
+ image = gdk_image_new (GDK_IMAGE_FASTEST, visual, width, height);
+
+ gc = NULL;
+ if (mask)
+ {
+ *mask = gdk_pixmap_new (window, width, height, 1);
+ gc = gdk_gc_new (*mask);
+
+ gdk_color_black (colormap, &tmp_color);
+ gdk_gc_set_foreground (gc, &tmp_color);
+ gdk_draw_rectangle (*mask, gc, TRUE, 0, 0, -1, -1);
+
+ gdk_color_white (colormap, &tmp_color);
+ gdk_gc_set_foreground (gc, &tmp_color);
+ }
+
+ for (ycnt = 0; ycnt < height; ycnt++)
+ {
+ gdk_pixmap_read_string (infile, &buffer, &buffer_size);
+
+ for (n = 0, cnt = 0, xcnt = 0; n < (width * cpp); n += cpp, xcnt++)
+ {
+ strncpy (pixel_str, &buffer[n], cpp);
+ pixel_str[cpp] = 0;
+ color = NULL;
+ ns = 0;
+
+ while (color == NULL)
+ {
+ if (strcmp (pixel_str, colors[ns].color_string) == 0)
+ color = &colors[ns];
+ else
+ ns++;
+ }
+
+ 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);
+ }
+
+ if (mask)
+ gdk_gc_destroy (gc);
+
+ pixmap = gdk_pixmap_new (window, width, height, visual->depth);
+
+ 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);
+ }
+ }
+
+ fclose (infile);
+ free (buffer);
+
+ if (colors != NULL)
+ {
+ for (cnt = 0; cnt < num_cols; cnt++)
+ g_free (colors[cnt].color_string);
+ g_free (colors);
+ }
+ }
+
+ return pixmap;
+}
+
+GdkPixmap*
+gdk_pixmap_create_from_xpm_d (GdkWindow *window,
+ GdkBitmap **mask,
+ GdkColor *transparent_color,
+ gchar **data)
+{
+ GdkPixmap *pixmap = NULL;
+ GdkImage *image = NULL;
+ GdkColormap *colormap;
+ GdkVisual *visual;
+ GdkGC *gc;
+ GdkColor tmp_color;
+ gint width, height, num_cols, cpp, cnt, n, ns, xcnt, ycnt, i;
+ gchar *buffer, *color_name = NULL, pixel_str[32];
+ _GdkPixmapColor *colors = NULL, *color = NULL;
+ gulong index;
+
+ if (!window)
+ window = (GdkWindow*) &gdk_root_parent;
+
+ i = 0;
+ buffer = data[i++];
+ sscanf (buffer,"%d %d %d %d", &width, &height, &num_cols, &cpp);
+
+ colors = g_new(_GdkPixmapColor, num_cols);
+
+ colormap = gdk_window_get_colormap (window);
+ visual = gdk_window_get_visual (window);
+
+ if (transparent_color == NULL)
+ {
+ gdk_color_white (colormap, &tmp_color);
+ transparent_color = &tmp_color;
+ }
+
+ for (cnt = 0; cnt < num_cols; cnt++)
+ {
+ buffer = data[i++];
+
+ colors[cnt].color_string = g_new(gchar, cpp + 1);
+ for (n = 0; n < cpp; n++)
+ colors[cnt].color_string[n] = buffer[n];
+ colors[cnt].color_string[n] = 0;
+ colors[cnt].transparent = FALSE;
+
+ if (color_name != NULL)
+ g_free (color_name);
+
+ color_name = gdk_pixmap_extract_color (&buffer[cpp]);
+
+ if (color_name != NULL)
+ {
+ if (gdk_color_parse (color_name, &colors[cnt].color) == FALSE)
+ {
+ colors[cnt].color = *transparent_color;
+ colors[cnt].transparent = TRUE;
+ }
+ }
+ else
+ {
+ colors[cnt].color = *transparent_color;
+ colors[cnt].transparent = TRUE;
+ }
+
+ gdk_color_alloc (colormap, &colors[cnt].color);
+ }
+
+ index = 0;
+ image = gdk_image_new (GDK_IMAGE_FASTEST, visual, width, height);
+
+ gc = NULL;
+ if (mask)
+ {
+ *mask = gdk_pixmap_new (window, width, height, 1);
+ gc = gdk_gc_new (*mask);
+
+ gdk_color_black (colormap, &tmp_color);
+ gdk_gc_set_foreground (gc, &tmp_color);
+ gdk_draw_rectangle (*mask, gc, TRUE, 0, 0, -1, -1);
+
+ gdk_color_white (colormap, &tmp_color);
+ gdk_gc_set_foreground (gc, &tmp_color);
+ }
+
+ for (ycnt = 0; ycnt < height; ycnt++)
+ {
+ buffer = data[i++];
+
+ for (n = 0, cnt = 0, xcnt = 0; n < (width * cpp); n += cpp, xcnt++)
+ {
+ strncpy (pixel_str, &buffer[n], cpp);
+ pixel_str[cpp] = 0;
+ color = NULL;
+ ns = 0;
+
+ while (color == NULL)
+ {
+ if (strcmp (pixel_str, colors[ns].color_string) == 0)
+ color = &colors[ns];
+ else
+ ns++;
+ }
+
+ 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);
+ }
+
+ if (mask)
+ gdk_gc_destroy (gc);
+
+ pixmap = gdk_pixmap_new (window, width, height, visual->depth);
+
+ 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);
+
+ if (colors != NULL)
+ {
+ for (cnt = 0; cnt < num_cols; cnt++)
+ g_free (colors[cnt].color_string);
+ g_free (colors);
+ }
+
+ return pixmap;
+}
+
+void
+gdk_pixmap_destroy (GdkPixmap *pixmap)
+{
+ GdkWindowPrivate *private;
+
+ g_return_if_fail (pixmap != NULL);
+
+ private = (GdkPixmapPrivate*) pixmap;
+ if (private->ref_count <= 0)
+ {
+ XFreePixmap (private->xdisplay, private->xwindow);
+ gdk_xid_table_remove (private->xwindow);
+ g_free (pixmap);
+ }
+ else
+ {
+ private->ref_count -= 1;
+ }
+}
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