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/*
* e-cursors.c - cursor handling for gnumeric
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) version 3.
*
* This program 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with the program; if not, see <http://www.gnu.org/licenses/>
*
*
* Authors:
* Miguel de Icaza (miguel@gnu.org)
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
#include <config.h>
#include <stdio.h>
#include "e-colors.h"
#include "e-cursors.h"
#include "pixmaps/cursor_cross.xpm"
#include "pixmaps/cursor_zoom_in.xpm"
#include "pixmaps/cursor_zoom_out.xpm"
#include "pixmaps/cursor_hand_open.xpm"
#include "pixmaps/cursor_hand_closed.xpm"
#define GDK_INTERNAL_CURSOR -1
typedef struct {
GdkCursor *cursor;
gint hot_x, hot_y;
const gchar **xpm;
} CursorDef;
static CursorDef cursors [] = {
{ NULL, 17, 17, cursor_cross_xpm },
{ NULL, GDK_INTERNAL_CURSOR, GDK_CROSSHAIR, NULL },
{ NULL, GDK_INTERNAL_CURSOR, GDK_ARROW, NULL },
{ NULL, GDK_INTERNAL_CURSOR, GDK_FLEUR, NULL },
{ NULL, 24, 24, cursor_zoom_in_xpm },
{ NULL, 24, 24, cursor_zoom_out_xpm },
{ NULL, GDK_INTERNAL_CURSOR, GDK_SB_H_DOUBLE_ARROW, NULL },
{ NULL, GDK_INTERNAL_CURSOR, GDK_SB_V_DOUBLE_ARROW, NULL },
{ NULL, GDK_INTERNAL_CURSOR, GDK_SIZING, NULL },
{ NULL, GDK_INTERNAL_CURSOR, GDK_SIZING, NULL },
{ NULL, GDK_INTERNAL_CURSOR, GDK_HAND2, NULL },
{ NULL, 10, 10, cursor_hand_open_xpm },
{ NULL, 10, 10, cursor_hand_closed_xpm },
{ NULL, GDK_INTERNAL_CURSOR, GDK_XTERM, NULL },
{ NULL, 0, 0, NULL }
};
static void
create_bitmap_and_mask_from_xpm (GdkBitmap **bitmap, GdkBitmap **mask, const gchar **xpm)
{
gint height, width, colors;
gchar pixmap_buffer [(32 * 32)/8];
gchar mask_buffer [(32 * 32)/8];
gint x, y, pix, yofs;
gint transparent_color, black_color;
sscanf (xpm [0], "%d %d %d %d", &height, &width, &colors, &pix);
g_return_if_fail (height == 32);
g_return_if_fail (width == 32);
g_return_if_fail (colors <= 3);
transparent_color = ' ';
black_color = '.';
yofs = colors + 1;
for (y = 0; y < 32; y++){
for (x = 0; x < 32;){
gchar value = 0, maskv = 0;
for (pix = 0; pix < 8; pix++, x++){
if (xpm [y + yofs][x] != transparent_color){
maskv |= 1 << pix;
/*
* Invert the colours here because it seems
* to workaround a bug the Matrox G100 Xserver?
* We reverse the foreground & background in the next
* routine to compensate.
*/
if (xpm [y + yofs][x] == black_color){
value |= 1 << pix;
}
}
}
pixmap_buffer [(y * 4 + x/8)-1] = value;
mask_buffer [(y * 4 + x/8)-1] = maskv;
}
}
*bitmap = gdk_bitmap_create_from_data (NULL, pixmap_buffer, 32, 32);
*mask = gdk_bitmap_create_from_data (NULL, mask_buffer, 32, 32);
}
void
e_cursors_init (void)
{
gint i;
e_color_init ();
for (i = 0; cursors [i].hot_x; i++){
if (cursors [i].hot_x < 0)
cursors [i].cursor = gdk_cursor_new (cursors [i].hot_y);
else {
GdkBitmap *bitmap = NULL, *mask = NULL;
create_bitmap_and_mask_from_xpm (&bitmap, &mask, cursors [i].xpm);
/* The foreground and background colours are reversed.
* See comment above for explanation.
*/
cursors [i].cursor =
gdk_cursor_new_from_pixmap (
bitmap, mask,
&e_black, &e_white,
cursors [i].hot_x,
cursors [i].hot_y);
g_object_unref (bitmap);
g_object_unref (mask);
}
}
g_return_if_fail (i == E_CURSOR_NUM_CURSORS);
}
void
e_cursors_shutdown (void)
{
gint i;
for (i = 0; cursors [i].hot_x; i++)
gdk_cursor_unref (cursors [i].cursor);
}
/* Returns a cursor given its type */
GdkCursor *
e_cursor_get (ECursorType type)
{
g_return_val_if_fail (type < E_CURSOR_NUM_CURSORS, NULL);
return cursors [type].cursor;
}
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