2004-04-29 03:14:21 +00:00
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is nsCursors.
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*
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* The Initial Developer of the Original Code is Andrew Thompson.
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* Portions created by the Andrew Thompson are Copyright (C) 2004
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* Andrew Thompson. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#import "nsCursorManager.h"
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#import "math.h"
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static nsCursorManager *gInstance;
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/*! @category nsCursorManager(PrivateMethods)
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Private methods for the cursor manager class.
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*/
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@interface nsCursorManager(PrivateMethods)
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/*! @method getCursor:
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@abstract Get a reference to the native Mac representation of a cursor.
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@discussion Gets a reference to the Mac native implementation of a cursor.
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If the cursor has been requested before, it is retreived from the cursor cache, otherwise is it created
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and cached.
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@param aCursor the cursor to get
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@result the Mac native implementation of the cursor
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*/
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- (nsMacCursor *) getCursor: (nsCursor) aCursor;
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/*! @method createCursor:
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@abstract Create a Mac native representation of a cursor.
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@discussion Creates a version of the Mac native representation of this cursor suitable for use on this version of
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Mac OS X
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@param aCursor the cursor to create
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@result the Mac native implementation of the cursor
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*/
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+ (nsMacCursor *) createCursor: (enum nsCursor) aCursor;
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/*! @method createNSCursor:orThemeCursor:
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@abstract Creates the appropriate cursor implementation from the arguments.
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@discussion Creates a native Mac cursor, using NSCursor if the cursor is available on this version of Mac OS X,
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otherwise falls back to creating a traditional Carbon AppearanceManager ThemeCursor.
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@param aPantherCursor selector indicating the NSCursor cursor to create if on Panther or later
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@param aJaguarCursor the ThemeCursor to use as an alternative if running on Jaguar
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@result the Mac native implementation of the cursor
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*/
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+ (nsMacCursor *) createNSCursor: (SEL) aPantherCursor orThemeCursor: (ThemeCursor) aJaguarCursor;
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/*! @method createNSCursor:orImageCursor:withHotspot:
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@abstract Creates the appropriate cursor implementation from the arguments.
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@discussion Creates a native Mac cursor, using NSCursor if the cursor is available on this version of Mac OS X,
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otherwise falls back to creating an NSCursor instance from a custom image and hotspot.
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@param aPantherCursor selector indicating the NSCursor cursor to create if on Panther or later
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@param aImageName the name of the image to use for the cursor as the cursor on Jagua
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@param aPoint the hotspot to use with the image to form a cursor on Jaguar
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@result the Mac native implementation of the cursor
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*/
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+ (nsMacCursor *) createNSCursor: (SEL) aPantherCursor orImageCursor: (NSString *) aImageName withHotspot: (NSPoint) aPoint;
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@end
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/*! @function isPantherOrLater
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@abstract Determine whether we are running on Panther (Mac OS X 10.3) or later
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@result YES if the current operating system version is 10.3 or later, else NO
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*/
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static BOOL isPantherOrLater();
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static BOOL isPantherOrLater()
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{
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static PRBool gInitVer = PR_FALSE;
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static PRBool gOnPantherOrLater = PR_FALSE;
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if(!gInitVer)
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{
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long version;
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OSErr err = ::Gestalt(gestaltSystemVersion, &version);
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gOnPantherOrLater = (err == noErr && version >= 0x00001030);
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gInitVer = PR_TRUE;
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}
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return gOnPantherOrLater;
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}
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@implementation nsCursorManager
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+ (nsCursorManager *) sharedInstance
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{
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if (gInstance == nil)
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{
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gInstance = [[nsCursorManager alloc] init];
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}
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return gInstance;
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}
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+ (void) dispose
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{
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[gInstance release];
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gInstance = nil;
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}
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+ (nsMacCursor *) createCursor: (enum nsCursor) aCursor
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{
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switch(aCursor)
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{
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case eCursor_standard:
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return [nsMacCursor cursorWithCursor: [NSCursor arrowCursor]];
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case eCursor_wait:
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return [nsMacCursor cursorWithThemeCursor: kThemeWatchCursor];
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case eCursor_select:
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return [nsMacCursor cursorWithCursor: [NSCursor IBeamCursor]];
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case eCursor_hyperlink:
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return [nsCursorManager createNSCursor: @selector(pointingHandCursor) orThemeCursor: kThemePointingHandCursor];
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case eCursor_crosshair:
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return [nsCursorManager createNSCursor: @selector(crosshairCursor) orThemeCursor: kThemeCrossCursor];
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case eCursor_move:
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return [nsCursorManager createNSCursor: @selector(openHandCursor) orThemeCursor: kThemeOpenHandCursor];
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case eCursor_help:
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return [nsMacCursor cursorWithImageNamed: @"help" hotSpot: NSMakePoint(1,1)];
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case eCursor_copy:
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return [nsMacCursor cursorWithThemeCursor: kThemeCopyArrowCursor];
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case eCursor_alias:
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return [nsMacCursor cursorWithThemeCursor: kThemeAliasArrowCursor];
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case eCursor_context_menu:
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return [nsMacCursor cursorWithThemeCursor: kThemeContextualMenuArrowCursor];
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2004-04-29 03:14:21 +00:00
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case eCursor_cell:
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return [nsMacCursor cursorWithThemeCursor: kThemePlusCursor];
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case eCursor_grab:
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return [nsCursorManager createNSCursor: @selector(openHandCursor) orThemeCursor: kThemeOpenHandCursor];
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case eCursor_grabbing:
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return [nsCursorManager createNSCursor: @selector(closedHandCursor) orThemeCursor: kThemeClosedHandCursor];
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case eCursor_spinning:
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return [nsMacCursor cursorWithResources: 200 lastFrame: 203]; // better than kThemeSpinningCursor
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case eCursor_zoom_in:
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return [nsMacCursor cursorWithImageNamed: @"zoomIn" hotSpot: NSMakePoint(6,6)];
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case eCursor_zoom_out:
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return [nsMacCursor cursorWithImageNamed: @"zoomOut" hotSpot: NSMakePoint(6,6)];
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2004-09-11 23:24:30 +00:00
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case eCursor_vertical_text:
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return [nsMacCursor cursorWithImageNamed: @"vtIBeam" hotSpot: NSMakePoint(7,8)];
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case eCursor_all_scroll:
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return [nsCursorManager createNSCursor: @selector(openHandCursor) orThemeCursor: kThemeOpenHandCursor];
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case eCursor_not_allowed:
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case eCursor_no_drop:
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return [nsMacCursor cursorWithThemeCursor: kThemeNotAllowedCursor];
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2004-09-19 19:49:29 +00:00
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// Resize Cursors:
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//North
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case eCursor_n_resize:
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return [nsCursorManager createNSCursor: @selector(resizeUpCursor) orImageCursor: @"arrowN" withHotspot: NSMakePoint(7,7)];
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//North East
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case eCursor_ne_resize:
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return [nsMacCursor cursorWithImageNamed: @"sizeNE" hotSpot: NSMakePoint(8,7)];
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//East
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case eCursor_e_resize:
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return [nsCursorManager createNSCursor: @selector(resizeRightCursor) orThemeCursor: kThemeResizeRightCursor];
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//South East
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case eCursor_se_resize:
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return [nsMacCursor cursorWithImageNamed: @"sizeSE" hotSpot: NSMakePoint(8,8)];
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//South
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case eCursor_s_resize:
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return [nsCursorManager createNSCursor: @selector(resizeDownCursor) orImageCursor: @"arrowS" withHotspot: NSMakePoint(7,7)];
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//South West
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case eCursor_sw_resize:
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return [nsMacCursor cursorWithImageNamed: @"sizeSW" hotSpot: NSMakePoint(6,8)];
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//West
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case eCursor_w_resize:
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return [nsCursorManager createNSCursor: @selector(resizeLeftCursor) orThemeCursor: kThemeResizeLeftCursor];
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//North West
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case eCursor_nw_resize:
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return [nsMacCursor cursorWithImageNamed: @"sizeNW" hotSpot: NSMakePoint(7,7)];
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//North & South
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case eCursor_ns_resize:
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return [nsCursorManager createNSCursor: @selector(resizeUpDownCursor) orImageCursor: @"sizeNS" withHotspot: NSMakePoint(7,7)];
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//East & West
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case eCursor_ew_resize:
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return [nsCursorManager createNSCursor: @selector(resizeLeftRightCursor) orThemeCursor: kThemeResizeLeftRightCursor];
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//North East & South West
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case eCursor_nesw_resize:
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return [nsMacCursor cursorWithImageNamed: @"sizeNESW" hotSpot: NSMakePoint(8,8)];
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//North West & South East
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case eCursor_nwse_resize:
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return [nsMacCursor cursorWithImageNamed: @"sizeNWSE" hotSpot: NSMakePoint(8,8)];
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//Column Resize
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case eCursor_col_resize:
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return [nsMacCursor cursorWithImageNamed: @"colResize" hotSpot: NSMakePoint(8,8)];
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//Row Resize
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case eCursor_row_resize:
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return [nsMacCursor cursorWithImageNamed: @"rowResize" hotSpot: NSMakePoint(8,8)];
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2004-04-29 03:14:21 +00:00
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default:
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return [nsMacCursor cursorWithCursor: [NSCursor arrowCursor]];
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}
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}
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+ (nsMacCursor *) createNSCursor: (SEL) aPantherCursor orThemeCursor: (ThemeCursor) aJaguarCursor
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{
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return isPantherOrLater() ? [nsMacCursor cursorWithCursor: [NSCursor performSelector: aPantherCursor]] :
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[nsMacCursor cursorWithThemeCursor: aJaguarCursor];
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}
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+ (nsMacCursor *) createNSCursor: (SEL) aPantherCursor orImageCursor: (NSString *) aImageName withHotspot: (NSPoint) aPoint
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{
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return isPantherOrLater() ? [nsMacCursor cursorWithCursor: [NSCursor performSelector: aPantherCursor]] :
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[nsMacCursor cursorWithImageNamed: aImageName hotSpot: aPoint];
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}
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- (id) init
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{
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if ( (self = [super init]) )
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{
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mCursors = [[NSMutableDictionary alloc] initWithCapacity: 25];
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}
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return self;
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}
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- (void) setCursor: (enum nsCursor) aCursor
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{
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if (aCursor != mCurrentCursor)
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{
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[[self getCursor: mCurrentCursor] unset];
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[[self getCursor: aCursor] set];
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mCurrentCursor = aCursor;
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}
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}
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- (nsMacCursor *) getCursor: (enum nsCursor) aCursor
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{
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nsMacCursor * result = [mCursors objectForKey: [NSNumber numberWithInt: aCursor]];
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if ( result == nil )
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{
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result = [nsCursorManager createCursor: aCursor];
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[mCursors setObject: result forKey: [NSNumber numberWithInt: aCursor]];
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}
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return result;
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}
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- (void) dealloc
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{
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[[self getCursor: mCurrentCursor] unset];
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[mCursors release];
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[super dealloc];
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}
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@end
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