// Name: src/cocoa/cursor.mm
// Purpose: wxCursor class for wxCocoa
// Author: Ryan Norton
+// David Elliott
// Modified by:
// Created: 2004-10-05
// RCS-ID: $Id$
// Copyright: (c) Ryan Norton
-// Licence: wxWidgets licence
+// 2007, Software 2000 Ltd.
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#include "wx/wxprec.h"
#ifndef WX_PRECOMP
#include "wx/icon.h"
+ #include "wx/log.h"
#endif //WX_PRECOMP
#import <AppKit/NSCursor.h>
#import <AppKit/NSImage.h>
#include "wx/cocoa/string.h"
+#include "wx/cocoa/autorelease.h"
IMPLEMENT_DYNAMIC_CLASS(wxCursor, wxBitmap)
wxInt16 hotspot[2];
}ClassicCursor;
+///////////////////////////////////////////////////////////////////////////
+// This is a direct copy from src/osx/carbon/cursor.cpp and should be
+// changed to use common code if we plan on keeping it this way.
+// Note that this is basically an array of classic 'CURS' resources.
+
const short kwxCursorBullseye = 0 ;
const short kwxCursorBlank = 1 ;
const short kwxCursorPencil = 2 ;
} ;
-NSCursor* wxGetStockCursor( short sIndex )
+// End of data copied from src/osx/carbon/cursor.cpp
+///////////////////////////////////////////////////////////////////////////
+
+/* NSCursorCreateWithPrivateId
+ * Returns a newly allocated (i.e. retainCount == 1) NSCursor based on the
+ * classic Mac OS cursor data in this source file. This allows us to
+ * implement the "stock" wxWidgets cursors which aren't present in Cocoa.
+ */
+static inline NSCursor* NSCursorCreateWithPrivateId(short sIndex)
{
ClassicCursor* pCursor = &gMacCursors[sIndex];
//identical mask that is 1 for on and 0 for off
NSImage *theImage = [[NSImage alloc] initWithSize:NSMakeSize(16.0,16.0)];
- //NSCursor takes an NSImage takes a number of Representations - here
- //we need only one for the raw data
- NSBitmapImageRep *theRep =
- [[NSBitmapImageRep alloc]
- initWithBitmapDataPlanes: nil // Allocate the buffer for us :)
- pixelsWide: 16
- pixelsHigh: 16
- bitsPerSample: 1
- samplesPerPixel: 2
- hasAlpha: YES // Well, more like a mask...
- isPlanar: NO
- colorSpaceName: NSCalibratedWhiteColorSpace // Normal B/W - 0 black 1 white
- bytesPerRow: 0 // I don't care - figure it out for me :)
- bitsPerPixel: 2]; // bitsPerSample * samplesPerPixel
-
- //unsigned int is better to put data in then a void*
- //note that working with bitfields would be a lot better here -
- //but since it breaks some compilers...
- wxUint32 *data = (wxUint32 *)[theRep bitmapData];
-
- //traverse through the bitmap data
- for (int i = 0; i < 16; ++i)
+ NSBitmapImageRep *theRep = [[NSBitmapImageRep alloc]
+ initWithBitmapDataPlanes: NULL // Tell Cocoa to allocate the planes for us.
+ pixelsWide: 16 // All classic cursors are 16x16
+ pixelsHigh: 16
+ bitsPerSample: 1 // All classic cursors are bitmaps with bitmasks
+ samplesPerPixel: 2 // Sample 0:image 1:mask
+ hasAlpha: YES // Identify last sample as a mask
+ isPlanar: YES // Use a separate array for each sample
+ colorSpaceName: NSCalibratedWhiteColorSpace // 0.0=black 1.0=white
+ bytesPerRow: 2 // Rows in each plane are on 2-byte boundaries (no pad)
+ bitsPerPixel: 1]; // same as bitsPerSample since data is planar
+ // XXX: Should we use NSDeviceWhiteColorSpace? Does it matter?
+
+ // Ensure that Cocoa allocated 2 and only 2 of the 5 possible planes
+ unsigned char *planes[5];
+ [theRep getBitmapDataPlanes:planes];
+ wxASSERT(planes[0] != NULL);
+ wxASSERT(planes[1] != NULL);
+ wxASSERT(planes[2] == NULL);
+ wxASSERT(planes[3] == NULL);
+ wxASSERT(planes[4] == NULL);
+
+ // NOTE1: The Cursor's bits field is white=0 black=1.. thus the bitwise-not
+ // Why not use NSCalibratedBlackColorSpace? Because that reverses the
+ // sense of the alpha (mask) plane.
+ // NOTE2: The mask data is 0=off 1=on
+ // NOTE3: Cocoa asks for "premultiplied" color planes. Since we have a
+ // 1-bit color plane and a 1-bit alpha plane we can just do a bitwise-and
+ // on the two. The original cursor bitmaps have 0 (white actually) for
+ // any masked-off pixels. Therefore every masked-off pixel would be wrong
+ // since we bit-flip all of the picture bits. In practice, Cocoa doesn't
+ // seem to care, but we are following the documentation.
+
+ // Fill in the color (black/white) plane
+ for(int i=0; i<16; ++i)
{
- //bit alpha bit alpha ... :D
-
- //Notice the = instead of |= -
- //this is to avoid doing a memset earlier
- data[i] = 0;
-
- //do the rest of those bits and alphas :)
- for (int shift = 0; shift < 32; ++shift)
- {
- data[i] |= ( !!( (pCursor->mask[i] & (1 << (shift >> 1) )) ) ) << shift;
- data[i] |= ( !( (pCursor->bits[i] & (1 << (shift >> 1) )) ) ) << ++shift;
- }
+ planes[0][2*i ] = (~pCursor->bits[i] & pCursor->mask[i]) >> 8 & 0xff;
+ planes[0][2*i+1] = (~pCursor->bits[i] & pCursor->mask[i]) & 0xff;
+ }
+ // Fill in the alpha (i.e. mask) plane
+ for(int i=0; i<16; ++i)
+ {
+ planes[1][2*i ] = pCursor->mask[i] >> 8 & 0xff;
+ planes[1][2*i+1] = pCursor->mask[i] & 0xff;
}
//add the representation (data) to the image
[theImage release];
}
-// Cursors by stock number
-wxCursor::wxCursor(int cursor_type)
-{
- m_refData = new wxCursorRefData;
-
- switch (cursor_type)
- {
- case wxCURSOR_IBEAM:
- M_CURSORDATA->m_hCursor = [[NSCursor IBeamCursor] retain];
- break;
- case wxCURSOR_ARROW:
- M_CURSORDATA->m_hCursor = [[NSCursor arrowCursor] retain];
- break;
-/* TODO:
- case wxCURSOR_COPY_ARROW:
- M_CURSORDATA->m_themeCursor = kThemeCopyArrowCursor ;
- break;
- case wxCURSOR_WAIT:
- M_CURSORDATA->m_themeCursor = kThemeWatchCursor ;
- break;
- case wxCURSOR_CROSS:
- M_CURSORDATA->m_themeCursor = kThemeCrossCursor;
- break;
- case wxCURSOR_SIZENWSE:
- {
- M_CURSORDATA->m_hCursor = wxGetStockCursor(kwxCursorSizeNWSE);
- }
- break;
-*/
- case wxCURSOR_SIZENESW:
- {
- M_CURSORDATA->m_hCursor = wxGetStockCursor(kwxCursorSizeNESW);
- }
- break;
-/* TODO:
- case wxCURSOR_SIZEWE:
- {
- M_CURSORDATA->m_themeCursor = kThemeResizeLeftRightCursor;
- }
- break;
-*/
- case wxCURSOR_SIZENS:
- {
- M_CURSORDATA->m_hCursor = wxGetStockCursor(kwxCursorSizeNS);
- }
- break;
- case wxCURSOR_SIZING:
- {
- M_CURSORDATA->m_hCursor = wxGetStockCursor(kwxCursorSize);
- }
- break;
-/* TODO:
- case wxCURSOR_HAND:
- {
- M_CURSORDATA->m_themeCursor = kThemePointingHandCursor;
- }
- break;
-*/
- case wxCURSOR_BULLSEYE:
- {
- M_CURSORDATA->m_hCursor = wxGetStockCursor(kwxCursorBullseye);
- }
- break;
- case wxCURSOR_PENCIL:
- {
- M_CURSORDATA->m_hCursor = wxGetStockCursor(kwxCursorPencil);
- }
- break;
- case wxCURSOR_MAGNIFIER:
- {
- M_CURSORDATA->m_hCursor = wxGetStockCursor(kwxCursorMagnifier);
- }
- break;
- case wxCURSOR_NO_ENTRY:
- {
- M_CURSORDATA->m_hCursor = wxGetStockCursor(kwxCursorNoEntry);
- }
- break;
-/* TODO:
- case wxCURSOR_WATCH:
- {
- M_CURSORDATA->m_themeCursor = kThemeWatchCursor;
- break;
- }
-*/
- case wxCURSOR_PAINT_BRUSH:
- {
- M_CURSORDATA->m_hCursor = wxGetStockCursor(kwxCursorPaintBrush);
- break;
- }
- case wxCURSOR_POINT_LEFT:
- {
- M_CURSORDATA->m_hCursor = wxGetStockCursor(kwxCursorPointLeft);
- break;
- }
- case wxCURSOR_POINT_RIGHT:
- {
- M_CURSORDATA->m_hCursor = wxGetStockCursor(kwxCursorPointRight);
- break;
- }
- case wxCURSOR_QUESTION_ARROW:
- {
- M_CURSORDATA->m_hCursor = wxGetStockCursor(kwxCursorQuestionArrow);
- break;
- }
- case wxCURSOR_BLANK:
- {
- M_CURSORDATA->m_hCursor = wxGetStockCursor(kwxCursorBlank);
- break;
- }
- case wxCURSOR_RIGHT_ARROW:
- {
- M_CURSORDATA->m_hCursor = wxGetStockCursor(kwxCursorRightArrow);
- break;
- }
- case wxCURSOR_SPRAYCAN:
+// Returns a system cursor given the NSCursor class method selector or
+// nil if NSCursor does not respond to the message.
+// For example, OS X before 10.3 won't respond to pointingHandCursor.
+static inline NSCursor* GetSystemCursorWithSelector(SEL cursorSelector)
+{
+ if([NSCursor respondsToSelector: cursorSelector])
+ return [NSCursor performSelector: cursorSelector];
+ else
+ return nil;
+}
+
+// Please maintain order as if this were an array keyed on wxStockCursor
+static inline SEL GetCursorSelectorForStockCursor(int stock_cursor_id)
+{
+ switch(stock_cursor_id)
+ {
+ case wxCURSOR_ARROW: return @selector(arrowCursor);
+ case wxCURSOR_RIGHT_ARROW: break;
+ case wxCURSOR_BULLSEYE: break;
+ case wxCURSOR_CHAR: break;
+ case wxCURSOR_CROSS: return @selector(crosshairCursor);
+ case wxCURSOR_HAND: return @selector(pointingHandCursor);
+ case wxCURSOR_IBEAM: return @selector(IBeamCursor);
+ case wxCURSOR_LEFT_BUTTON: break;
+ case wxCURSOR_MAGNIFIER: break;
+ case wxCURSOR_MIDDLE_BUTTON: break;
+ case wxCURSOR_NO_ENTRY: break;
+ case wxCURSOR_PAINT_BRUSH: break;
+ case wxCURSOR_PENCIL: break;
+ case wxCURSOR_POINT_LEFT: break;
+ case wxCURSOR_POINT_RIGHT: break;
+ case wxCURSOR_QUESTION_ARROW: break;
+ case wxCURSOR_RIGHT_BUTTON: break;
+ case wxCURSOR_SIZENESW: break;
+ case wxCURSOR_SIZENS: return @selector(resizeUpDownCursor);
+ case wxCURSOR_SIZENWSE: break;
+ case wxCURSOR_SIZEWE: return @selector(resizeLeftRightCursor);
+ case wxCURSOR_SIZING: break;
+ case wxCURSOR_SPRAYCAN: break;
+ case wxCURSOR_WAIT: break;
+ case wxCURSOR_WATCH: break;
+ case wxCURSOR_BLANK: break;
+ case wxCURSOR_ARROWWAIT: break;
+ default: break;
+ }
+ return NULL;
+}
+
+// Please maintain order as if this were an array keyed on wxStockCursor
+static inline int GetPrivateCursorIdForStockCursor(int stock_cursor_id)
+{
+ switch(stock_cursor_id)
+ {
+ case wxCURSOR_ARROW: break; // NSCursor
+ case wxCURSOR_RIGHT_ARROW: return kwxCursorRightArrow;
+ case wxCURSOR_BULLSEYE: return kwxCursorBullseye;
+ case wxCURSOR_CHAR: break;
+ case wxCURSOR_CROSS: break; // NSCursor
+ case wxCURSOR_HAND: break; // NSCursor (OS X >= 10.3)
+ case wxCURSOR_IBEAM: break; // NSCursor
+ case wxCURSOR_LEFT_BUTTON: break;
+ case wxCURSOR_MAGNIFIER: return kwxCursorMagnifier;
+ case wxCURSOR_MIDDLE_BUTTON: break;
+ case wxCURSOR_NO_ENTRY: return kwxCursorNoEntry;
+ case wxCURSOR_PAINT_BRUSH: return kwxCursorPaintBrush;
+ case wxCURSOR_PENCIL: return kwxCursorPencil;
+ case wxCURSOR_POINT_LEFT: return kwxCursorPointLeft;
+ case wxCURSOR_POINT_RIGHT: return kwxCursorPointRight;
+ case wxCURSOR_QUESTION_ARROW: return kwxCursorQuestionArrow;
+ case wxCURSOR_RIGHT_BUTTON: break;
+ case wxCURSOR_SIZENESW: return kwxCursorSizeNESW;
+ case wxCURSOR_SIZENS: return kwxCursorSizeNS; // also NSCursor
+ case wxCURSOR_SIZENWSE: return kwxCursorSizeNWSE;
+ case wxCURSOR_SIZEWE: break; // NSCursor
+ case wxCURSOR_SIZING: return kwxCursorSize;
+ case wxCURSOR_SPRAYCAN: return kwxCursorRoller;
+ case wxCURSOR_WAIT: break;
+ case wxCURSOR_WATCH: break;
+ case wxCURSOR_BLANK: return kwxCursorBlank;
+ case wxCURSOR_ARROWWAIT: break;
+ default: break;
+ }
+ return -1;
+}
+
+// Keep an array of stock cursors so they can share wxCursorRefData and thus
+// wxObject::IsSameAs will return true.
+// They will obviously be destroyed at static destruction time which should
+// theoretically be fine.
+static wxCursor s_stockCursors[wxCURSOR_MAX];
+
+// Cursors by stock number (enum wxStockCursor)
+wxCursor::wxCursor(int stock_cursor_id)
+{
+ // We default-constructed wxObject so our m_refData == NULL
+ if(stock_cursor_id >= 0 && stock_cursor_id < wxCURSOR_MAX)
+ {
+ // Attempt to reference an existing stock cursor
+ Ref(s_stockCursors[stock_cursor_id]);
+ }
+ // If we succeeded in getting an existing stock cursor, we're done.
+ if(m_refData != NULL)
+ return;
+
+ m_refData = new wxCursorRefData;
+
+ M_CURSORDATA->m_hCursor = nil;
+
+ wxCHECK_RET( stock_cursor_id > wxCURSOR_NONE && stock_cursor_id < wxCURSOR_MAX,
+ wxT("invalid cursor id in wxCursor() ctor") );
+
+ // Stage 1: Try a system cursor
+ SEL cursorSelector;
+ if( (cursorSelector = GetCursorSelectorForStockCursor(stock_cursor_id)) != NULL)
+ {
+ M_CURSORDATA->m_hCursor = [GetSystemCursorWithSelector(cursorSelector) retain];
+ }
+
+ // TODO: Provide a pointing hand for OS X < 10.3 if desired
+
+ // Stage 2: Try one of the 'CURS'-style cursors
+ if(M_CURSORDATA->m_hCursor == nil)
+ {
+ int privateId;
+ if( (privateId = GetPrivateCursorIdForStockCursor(stock_cursor_id)) >= 0)
{
- M_CURSORDATA->m_hCursor = wxGetStockCursor(kwxCursorRoller);
- break;
+ M_CURSORDATA->m_hCursor = NSCursorCreateWithPrivateId(privateId);
}
- case wxCURSOR_CHAR:
- case wxCURSOR_LEFT_BUTTON:
- case wxCURSOR_RIGHT_BUTTON:
- case wxCURSOR_MIDDLE_BUTTON:
- default:
- break;
+ }
+
+ // Stage 3: Give up, complain, and use a normal arrow
+ if(M_CURSORDATA->m_hCursor == nil)
+ {
+ wxLogDebug(wxT("Could not find suitable cursor for wxStockCursor = %d. Using normal pointer."), stock_cursor_id);
+ M_CURSORDATA->m_hCursor = [[NSCursor arrowCursor] retain];
+ }
+
+ // This should never happen as the arrowCursor should always exist.
+ wxASSERT(M_CURSORDATA->m_hCursor != nil);
+
+ // Store ourself as the new stock cursor for this ID so that future
+ // calls will share the same ref data.
+ if(stock_cursor_id >= 0 && stock_cursor_id < wxCURSOR_MAX)
+ {
+ s_stockCursors[stock_cursor_id] = *this;
}
}
projects / wxWidgets.git / blobdiff