forked from AuroraMiddleware/gtk
274 lines
7.4 KiB
C
274 lines
7.4 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library 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) any later version.
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*
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* This library 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include "gdkcursor.h"
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#include "gdkwin32.h"
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static const struct { const char *name; int type; } cursors[] = {
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{ "x_cursor", 0 },
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{ "arrow", 2 },
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{ "based_arrow_down", 4 },
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{ "based_arrow_up", 6 },
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{ "boat", 8 },
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{ "bogosity", 10 },
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{ "bottom_left_corner", 12 },
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{ "bottom_right_corner", 14 },
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{ "bottom_side", 16 },
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{ "bottom_tee", 18 },
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{ "box_spiral", 20 },
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{ "center_ptr", 22 },
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{ "circle", 24 },
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{ "clock", 26 },
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{ "coffee_mug", 28 },
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{ "cross", 30 },
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{ "cross_reverse", 32 },
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{ "crosshair", 34 },
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{ "diamond_cross", 36 },
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{ "dot", 38 },
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{ "dotbox", 40 },
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{ "double_arrow", 42 },
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{ "draft_large", 44 },
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{ "draft_small", 46 },
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{ "draped_box", 48 },
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{ "exchange", 50 },
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{ "fleur", 52 },
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{ "gobbler", 54 },
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{ "gumby", 56 },
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{ "hand1", 58 },
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{ "hand2", 60 },
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{ "heart", 62 },
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{ "icon", 64 },
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{ "iron_cross", 66 },
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{ "left_ptr", 68 },
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{ "left_side", 70 },
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{ "left_tee", 72 },
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{ "leftbutton", 74 },
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{ "ll_angle", 76 },
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{ "lr_angle", 78 },
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{ "man", 80 },
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{ "middlebutton", 82 },
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{ "mouse", 84 },
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{ "pencil", 86 },
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{ "pirate", 88 },
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{ "plus", 90 },
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{ "question_arrow", 92 },
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{ "right_ptr", 94 },
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{ "right_side", 96 },
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{ "right_tee", 98 },
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{ "rightbutton", 100 },
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{ "rtl_logo", 102 },
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{ "sailboat", 104 },
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{ "sb_down_arrow", 106 },
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{ "sb_h_double_arrow", 108 },
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{ "sb_left_arrow", 110 },
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{ "sb_right_arrow", 112 },
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{ "sb_up_arrow", 114 },
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{ "sb_v_double_arrow", 116 },
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{ "shuttle", 118 },
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{ "sizing", 120 },
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{ "spider", 122 },
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{ "spraycan", 124 },
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{ "star", 126 },
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{ "target", 128 },
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{ "tcross", 130 },
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{ "top_left_arrow", 132 },
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{ "top_left_corner", 134 },
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{ "top_right_corner", 136 },
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{ "top_side", 138 },
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{ "top_tee", 140 },
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{ "trek", 142 },
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{ "ul_angle", 144 },
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{ "umbrella", 146 },
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{ "ur_angle", 148 },
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{ "watch", 150 },
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{ "xterm", 152 },
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{ NULL, 0 }
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};
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GdkCursor*
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gdk_cursor_new (GdkCursorType cursor_type)
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{
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GdkCursorPrivate *private;
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GdkCursor *cursor;
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HCURSOR xcursor;
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int i;
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for (i = 0; cursors[i].name != NULL && cursors[i].type != cursor_type; i++)
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;
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if (cursors[i].name != NULL)
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{
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xcursor = LoadCursor (gdk_DLLInstance, cursors[i].name);
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if (xcursor == NULL)
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g_warning ("gdk_cursor_new: LoadCursor failed");
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GDK_NOTE (MISC, g_print ("gdk_cursor_new: %#x %d\n",
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xcursor, cursor_type));
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}
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else
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{
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g_warning ("gdk_cursor_new: no cursor %d found",
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cursor_type);
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xcursor = NULL;
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}
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private = g_new (GdkCursorPrivate, 1);
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private->xcursor = xcursor;
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cursor = (GdkCursor*) private;
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cursor->type = cursor_type;
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return cursor;
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}
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GdkCursor*
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gdk_cursor_new_from_pixmap (GdkPixmap *source,
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GdkPixmap *mask,
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GdkColor *fg,
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GdkColor *bg,
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gint x,
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gint y)
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{
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GdkCursorPrivate *private;
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GdkCursor *cursor;
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GdkDrawablePrivate *source_private, *mask_private;
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GdkImage *source_image, *mask_image;
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HCURSOR xcursor;
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guchar *p, *q, *XORmask, *ANDmask;
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gint width, height, cursor_width, cursor_height;
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guchar residue;
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gint ix, iy;
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g_return_val_if_fail (source != NULL, NULL);
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g_return_val_if_fail (mask != NULL, NULL);
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source_private = (GdkDrawablePrivate *) source;
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mask_private = (GdkDrawablePrivate *) mask;
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g_return_val_if_fail (source_private->width == mask_private->width
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&& source_private->height == mask_private->height,
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NULL);
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width = source_private->width;
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height = source_private->height;
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cursor_width = GetSystemMetrics (SM_CXCURSOR);
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cursor_height = GetSystemMetrics (SM_CYCURSOR);
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g_return_val_if_fail (width <= cursor_width
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&& height <= cursor_height, NULL);
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residue = (1 << ((8-(width%8))%8)) - 1;
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source_image = gdk_image_get (source, 0, 0, width, height);
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mask_image = gdk_image_get (mask, 0, 0, width, height);
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if (source_image->depth != 1 || mask_image->depth != 1)
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{
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gdk_image_unref (source_image);
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gdk_image_unref (mask_image);
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g_return_val_if_fail (source_image->depth == 1 && mask_image->depth == 1,
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NULL);
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}
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/* Such complex bit manipulation for this simple task, sigh.
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* The X cursor and Windows cursor concepts are quite different.
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* We assume here that we are always called with fg == black and
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* bg == white.
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*/
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/* First set masked-out source bits, as all source bits matter on Windoze.
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* As we invert them below, they will be clear in the final XORmask.
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*/
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for (iy = 0; iy < height; iy++)
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{
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p = (guchar *) source_image->mem + iy*source_image->bpl;
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q = (guchar *) mask_image->mem + iy*mask_image->bpl;
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for (ix = 0; ix < ((width-1)/8+1); ix++)
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*p++ |= ~(*q++);
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}
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/* XOR mask is initialized to zero */
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XORmask = g_malloc0 (cursor_width/8 * cursor_height);
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for (iy = 0; iy < height; iy++)
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{
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p = (guchar *) source_image->mem + iy*source_image->bpl;
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q = XORmask + iy*cursor_width/8;
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for (ix = 0; ix < ((width-1)/8+1); ix++)
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*q++ = ~(*p++);
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q[-1] &= ~residue; /* Clear left-over bits */
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}
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/* AND mask is initialized to ones */
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ANDmask = g_malloc (cursor_width/8 * cursor_height);
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memset (ANDmask, 0xFF, cursor_width/8 * cursor_height);
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for (iy = 0; iy < height; iy++)
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{
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p = (guchar *) mask_image->mem + iy*mask_image->bpl;
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q = ANDmask + iy*cursor_width/8;
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for (ix = 0; ix < ((width-1)/8+1); ix++)
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*q++ = ~(*p++);
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q[-1] |= residue; /* Set left-over bits */
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}
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xcursor = CreateCursor (gdk_ProgInstance, x, y, cursor_width, cursor_height,
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ANDmask, XORmask);
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GDK_NOTE (MISC, g_print ("gdk_cursor_new_from_pixmap: "
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"%#x (%dx%d) %#x (%dx%d) = %#x (%dx%d)\n",
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GDK_DRAWABLE_XID (source),
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source_private->width, source_private->height,
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GDK_DRAWABLE_XID (mask),
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mask_private->width, mask_private->height,
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xcursor, cursor_width, cursor_height));
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g_free (XORmask);
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g_free (ANDmask);
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gdk_image_unref (source_image);
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gdk_image_unref (mask_image);
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private = g_new (GdkCursorPrivate, 1);
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private->xcursor = xcursor;
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cursor = (GdkCursor*) private;
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cursor->type = GDK_CURSOR_IS_PIXMAP;
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return cursor;
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}
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void
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gdk_cursor_destroy (GdkCursor *cursor)
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{
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GdkCursorPrivate *private;
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g_return_if_fail (cursor != NULL);
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private = (GdkCursorPrivate *) cursor;
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GDK_NOTE (MISC, g_print ("gdk_cursor_destroy: %#x\n",
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(cursor->type == GDK_CURSOR_IS_PIXMAP) ? private->xcursor : 0));
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if (cursor->type == GDK_CURSOR_IS_PIXMAP)
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if (!DestroyIcon (private->xcursor))
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g_warning ("gdk_cursor_destroy: DestroyIcon failed");
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g_free (private);
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}
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