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