forked from AuroraMiddleware/gtk
376 lines
9.3 KiB
C
376 lines
9.3 KiB
C
/* gdkcursor-quartz.c
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*
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* Copyright (C) 2005-2007 Imendio AB
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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 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) 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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* 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 this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "gdkdisplay.h"
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#include "gdkcursor.h"
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#include "gdkcursorprivate.h"
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#include "gdkquartzcursor.h"
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#include "gdkprivate-quartz.h"
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#include "xcursors.h"
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struct _GdkQuartzCursor
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{
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GdkCursor cursor;
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NSCursor *nscursor;
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};
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struct _GdkQuartzCursorClass
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{
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GdkCursorClass cursor_class;
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};
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static GdkCursor *cached_xcursors[G_N_ELEMENTS (xcursors)];
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static GdkCursor *
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gdk_quartz_cursor_new_from_nscursor (NSCursor *nscursor,
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GdkCursorType cursor_type)
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{
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GdkQuartzCursor *private;
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private = g_object_new (GDK_TYPE_QUARTZ_CURSOR,
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"cursor-type", cursor_type,
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"display", _gdk_display,
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NULL);
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private->nscursor = nscursor;
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return GDK_CURSOR (private);
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}
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static GdkCursor *
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create_blank_cursor (void)
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{
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NSCursor *nscursor;
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NSImage *nsimage;
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NSSize size = { 1.0, 1.0 };
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nsimage = [[NSImage alloc] initWithSize:size];
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nscursor = [[NSCursor alloc] initWithImage:nsimage
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hotSpot:NSMakePoint(0.0, 0.0)];
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[nsimage release];
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return gdk_quartz_cursor_new_from_nscursor (nscursor, GDK_BLANK_CURSOR);
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}
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static gboolean
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get_bit (const guchar *data,
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gint width,
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gint height,
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gint x,
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gint y)
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{
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gint bytes_per_line;
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const guchar *src;
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if (x < 0 || y < 0 || x >= width || y >= height)
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return FALSE;
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bytes_per_line = (width + 7) / 8;
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src = &data[y * bytes_per_line];
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return ((src[x / 8] >> x % 8) & 1);
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}
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static GdkCursor *
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create_builtin_cursor (GdkCursorType cursor_type)
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{
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GdkCursor *cursor;
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NSBitmapImageRep *bitmap_rep;
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NSInteger mask_width, mask_height;
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gint src_width, src_height;
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gint dst_stride;
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const guchar *mask_start, *src_start;
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gint dx, dy;
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gint x, y;
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NSPoint hotspot;
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NSImage *image;
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NSCursor *nscursor;
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if (cursor_type >= G_N_ELEMENTS (xcursors) || cursor_type < 0)
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return NULL;
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cursor = cached_xcursors[cursor_type];
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if (cursor)
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return cursor;
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GDK_QUARTZ_ALLOC_POOL;
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src_width = xcursors[cursor_type].width;
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src_height = xcursors[cursor_type].height;
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mask_width = xcursors[cursor_type+1].width;
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mask_height = xcursors[cursor_type+1].height;
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bitmap_rep = [[NSBitmapImageRep alloc] initWithBitmapDataPlanes:NULL
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pixelsWide:mask_width pixelsHigh:mask_height
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bitsPerSample:8 samplesPerPixel:4
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hasAlpha:YES isPlanar:NO colorSpaceName:NSDeviceRGBColorSpace
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bytesPerRow:0 bitsPerPixel:0];
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dst_stride = [bitmap_rep bytesPerRow];
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src_start = xcursors[cursor_type].bits;
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mask_start = xcursors[cursor_type+1].bits;
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dx = xcursors[cursor_type+1].hotx - xcursors[cursor_type].hotx;
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dy = xcursors[cursor_type+1].hoty - xcursors[cursor_type].hoty;
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for (y = 0; y < mask_height; y++)
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{
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guchar *dst = [bitmap_rep bitmapData] + y * dst_stride;
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for (x = 0; x < mask_width; x++)
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{
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if (get_bit (mask_start, mask_width, mask_height, x, y))
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{
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if (get_bit (src_start, src_width, src_height, x - dx, y - dy))
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{
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*dst++ = 0;
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*dst++ = 0;
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*dst++ = 0;
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}
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else
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{
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*dst++ = 0xff;
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*dst++ = 0xff;
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*dst++ = 0xff;
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}
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*dst++ = 0xff;
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}
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else
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{
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*dst++ = 0;
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*dst++ = 0;
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*dst++ = 0;
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*dst++ = 0;
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}
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}
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}
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image = [[NSImage alloc] init];
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[image addRepresentation:bitmap_rep];
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[bitmap_rep release];
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hotspot = NSMakePoint (xcursors[cursor_type+1].hotx,
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xcursors[cursor_type+1].hoty);
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nscursor = [[NSCursor alloc] initWithImage:image hotSpot:hotspot];
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[image release];
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cursor = gdk_quartz_cursor_new_from_nscursor (nscursor, GDK_CURSOR_IS_PIXMAP);
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cached_xcursors[cursor_type] = g_object_ref (cursor);
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GDK_QUARTZ_RELEASE_POOL;
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return cursor;
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}
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GdkCursor*
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_gdk_quartz_display_get_cursor_for_type (GdkDisplay *display,
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GdkCursorType cursor_type)
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{
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NSCursor *nscursor;
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g_return_val_if_fail (display == gdk_display_get_default (), NULL);
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switch (cursor_type)
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{
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case GDK_XTERM:
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nscursor = [NSCursor IBeamCursor];
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break;
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case GDK_SB_H_DOUBLE_ARROW:
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nscursor = [NSCursor resizeLeftRightCursor];
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break;
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case GDK_SB_V_DOUBLE_ARROW:
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nscursor = [NSCursor resizeUpDownCursor];
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break;
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case GDK_SB_UP_ARROW:
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case GDK_BASED_ARROW_UP:
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case GDK_BOTTOM_TEE:
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case GDK_TOP_SIDE:
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nscursor = [NSCursor resizeUpCursor];
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break;
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case GDK_SB_DOWN_ARROW:
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case GDK_BASED_ARROW_DOWN:
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case GDK_TOP_TEE:
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case GDK_BOTTOM_SIDE:
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nscursor = [NSCursor resizeDownCursor];
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break;
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case GDK_SB_LEFT_ARROW:
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case GDK_RIGHT_TEE:
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case GDK_LEFT_SIDE:
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nscursor = [NSCursor resizeLeftCursor];
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break;
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case GDK_SB_RIGHT_ARROW:
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case GDK_LEFT_TEE:
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case GDK_RIGHT_SIDE:
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nscursor = [NSCursor resizeRightCursor];
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break;
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case GDK_TCROSS:
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case GDK_CROSS:
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case GDK_CROSSHAIR:
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case GDK_DIAMOND_CROSS:
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nscursor = [NSCursor crosshairCursor];
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break;
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case GDK_HAND1:
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case GDK_HAND2:
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nscursor = [NSCursor pointingHandCursor];
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break;
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case GDK_CURSOR_IS_PIXMAP:
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return NULL;
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case GDK_BLANK_CURSOR:
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return create_blank_cursor ();
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default:
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return g_object_ref (create_builtin_cursor (cursor_type));
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}
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[nscursor retain];
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return gdk_quartz_cursor_new_from_nscursor (nscursor, cursor_type);
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}
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GdkCursor *
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_gdk_quartz_display_get_cursor_for_surface (GdkDisplay *display,
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cairo_surface_t *surface,
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gdouble x,
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gdouble y)
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{
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NSImage *image;
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NSCursor *nscursor;
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GdkCursor *cursor;
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GdkPixbuf *pixbuf;
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GDK_QUARTZ_ALLOC_POOL;
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pixbuf = gdk_pixbuf_get_from_surface (surface, 0, 0,
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cairo_image_surface_get_width (surface),
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cairo_image_surface_get_height (surface));
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image = gdk_quartz_pixbuf_to_ns_image_libgtk_only (pixbuf);
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nscursor = [[NSCursor alloc] initWithImage:image hotSpot:NSMakePoint(x, y)];
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cursor = gdk_quartz_cursor_new_from_nscursor (nscursor, GDK_CURSOR_IS_PIXMAP);
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g_object_unref (pixbuf);
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GDK_QUARTZ_RELEASE_POOL;
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return cursor;
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}
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GdkCursor*
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_gdk_quartz_display_get_cursor_for_name (GdkDisplay *display,
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const gchar *name)
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{
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/* FIXME: Implement */
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return NULL;
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}
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G_DEFINE_TYPE (GdkQuartzCursor, gdk_quartz_cursor, GDK_TYPE_CURSOR)
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static cairo_surface_t *gdk_quartz_cursor_get_surface (GdkCursor *cursor,
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gdouble *x_hot,
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gdouble *y_hot);
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static void
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gdk_quartz_cursor_finalize (GObject *object)
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{
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GdkQuartzCursor *private = GDK_QUARTZ_CURSOR (object);
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if (private->nscursor)
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[private->nscursor release];
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private->nscursor = NULL;
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}
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static void
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gdk_quartz_cursor_class_init (GdkQuartzCursorClass *quartz_cursor_class)
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{
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GdkCursorClass *cursor_class = GDK_CURSOR_CLASS (quartz_cursor_class);
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GObjectClass *object_class = G_OBJECT_CLASS (quartz_cursor_class);
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object_class->finalize = gdk_quartz_cursor_finalize;
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cursor_class->get_surface = gdk_quartz_cursor_get_surface;
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}
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static void
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gdk_quartz_cursor_init (GdkQuartzCursor *cursor)
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{
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}
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gboolean
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_gdk_quartz_display_supports_cursor_alpha (GdkDisplay *display)
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{
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return TRUE;
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}
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gboolean
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_gdk_quartz_display_supports_cursor_color (GdkDisplay *display)
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{
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return TRUE;
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}
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void
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_gdk_quartz_display_get_default_cursor_size (GdkDisplay *display,
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guint *width,
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guint *height)
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{
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/* Mac OS X doesn't have the notion of a default size */
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*width = 32;
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*height = 32;
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}
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void
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_gdk_quartz_display_get_maximal_cursor_size (GdkDisplay *display,
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guint *width,
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guint *height)
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{
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/* Cursor sizes in Mac OS X can be arbitrarily large */
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*width = 65536;
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*height = 65536;
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}
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NSCursor *
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_gdk_quartz_cursor_get_ns_cursor (GdkCursor *cursor)
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{
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GdkQuartzCursor *cursor_private;
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if (!cursor)
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return [NSCursor arrowCursor];
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g_return_val_if_fail (GDK_IS_QUARTZ_CURSOR (cursor), NULL);
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cursor_private = GDK_QUARTZ_CURSOR (cursor);
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return cursor_private->nscursor;
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}
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static cairo_surface_t *
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gdk_quartz_cursor_get_surface (GdkCursor *cursor,
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gdouble *x_hot,
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gdouble *y_hot)
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{
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/* FIXME: Implement */
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return NULL;
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}
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