use correct scale when drawing

[wxWidgets.git] / src / osx / carbon / utilscocoa.mm

diff --git a/src/osx/carbon/utilscocoa.mm b/src/osx/carbon/utilscocoa.mm
index 08e0a23bc04c55aaf48e7ade3a01c94db4bb6e23..a4c9ba80161077673d0232b26e85c6ec64bb2196 100644 (file)
--- a/src/osx/carbon/utilscocoa.mm
+++ b/src/osx/carbon/utilscocoa.mm
@@ -1,16 +1,20 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        src/osx/carbon/utils.mm
+// Name:        src/osx/carbon/utilscocoa.mm

 // Purpose:     various cocoa mixin utility functions
 // Author:      Stefan Csomor
 // Modified by:
 // Created:     1998-01-01
 // Purpose:     various cocoa mixin utility functions
 // Author:      Stefan Csomor
 // Modified by:
 // Created:     1998-01-01

-// RCS-ID:      $Id: utilscocoa.mm 48805 2007-09-19 14:52:25Z SC $
+// RCS-ID:      $Id$

 // Copyright:   (c) Stefan Csomor
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #include "wx/wxprec.h"
 
 // Copyright:   (c) Stefan Csomor
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #include "wx/wxprec.h"
 

+#ifndef WX_PRECOMP
+#include "wx/object.h"
+#endif
+

 #if wxOSX_USE_COCOA_OR_CARBON
 #include <Cocoa/Cocoa.h>
 #else
 #if wxOSX_USE_COCOA_OR_CARBON
 #include <Cocoa/Cocoa.h>
 #else


@@ -23,6 +27,10 @@
 
 #include "wx/fontutil.h"
 
 
 #include "wx/fontutil.h"
 

+#if wxOSX_USE_COCOA
+#include "wx/cocoa/string.h"
+#endif
+

 #ifdef __WXMAC__
 
 #if wxOSX_USE_CARBON
 #ifdef __WXMAC__
 
 #if wxOSX_USE_CARBON


@@ -102,6 +110,48 @@ void* wxMacCocoaRetain( void* obj )
 // ----------------------------------------------------------------------------
 
 #if wxOSX_USE_COCOA
 // ----------------------------------------------------------------------------
 
 #if wxOSX_USE_COCOA

+wxFont::wxFont(WX_NSFont nsfont)
+{
+    [nsfont retain];
+    wxNativeFontInfo info;
+    SetNativeInfoFromNSFont(nsfont, &info);
+    Create(info);
+}
+
+void wxFont::SetNativeInfoFromNSFont(WX_NSFont theFont, wxNativeFontInfo* info)
+{   
+    if ( info->m_faceName.empty())
+    {
+        //Get more information about the user's chosen font
+        NSFontTraitMask theTraits = [[NSFontManager sharedFontManager] traitsOfFont:theFont];
+        int theFontWeight = [[NSFontManager sharedFontManager] weightOfFont:theFont];
+
+        wxFontFamily fontFamily = wxFONTFAMILY_DEFAULT;
+        //Set the wx font to the appropriate data
+        if(theTraits & NSFixedPitchFontMask)
+            fontFamily = wxFONTFAMILY_TELETYPE;
+
+        wxFontStyle fontstyle = wxFONTSTYLE_NORMAL;
+        wxFontWeight fontweight = wxFONTWEIGHT_NORMAL;
+        bool underlined = false;
+
+        int size = (int) ([theFont pointSize]+0.5);
+ 
+        if ( theFontWeight >= 9 )
+            fontweight = wxFONTWEIGHT_BOLD ;
+        else if ( theFontWeight < 5 )
+            fontweight = wxFONTWEIGHT_LIGHT;
+        else
+            fontweight = wxFONTWEIGHT_NORMAL ;
+            
+        if ( theTraits & NSItalicFontMask )
+            fontstyle = wxFONTSTYLE_ITALIC ;
+
+        info->Init(size,fontFamily,fontstyle,fontweight,underlined,
+            wxStringWithNSString([theFont familyName]), wxFONTENCODING_DEFAULT);
+
+    }
+}

 
 WX_NSFont wxFont::OSXCreateNSFont(wxOSXSystemFont font, wxNativeFontInfo* info)
 {
 
 WX_NSFont wxFont::OSXCreateNSFont(wxOSXSystemFont font, wxNativeFontInfo* info)
 {


@@ -138,65 +188,93 @@ WX_NSFont wxFont::OSXCreateNSFont(wxOSXSystemFont font, wxNativeFontInfo* info)
             break;
     }
     [nsfont retain];
             break;
     }
     [nsfont retain];

-    NSFontDescriptor*desc = [[nsfont fontDescriptor] retain];
-    if ( info->m_faceName.empty())
-    {
-        wxFontStyle fontstyle = wxFONTSTYLE_NORMAL;
-        wxFontWeight fontweight = wxFONTWEIGHT_NORMAL;
-        bool underlined = false;
-
-        int size = (int) ([desc pointSize]+0.5);
-        NSFontSymbolicTraits traits = [desc symbolicTraits];
-
-        if ( traits & NSFontBoldTrait )
-            fontweight = wxFONTWEIGHT_BOLD ;
-        else
-            fontweight = wxFONTWEIGHT_NORMAL ;
-        if ( traits & NSFontItalicTrait )
-            fontstyle = wxFONTSTYLE_ITALIC ;
-
-        wxCFStringRef fontname( [desc postscriptName] );
-        info->Init(size,wxFONTFAMILY_DEFAULT,fontstyle,fontweight,underlined,
-            fontname.AsString(), wxFONTENCODING_DEFAULT);
-
-    }
-    info->m_nsFontDescriptor = desc;
+    SetNativeInfoFromNSFont(nsfont, info);

     return nsfont;
 }
 
     return nsfont;
 }
 

-void wxNativeFontInfo::OSXValidateNSFontDescriptor()
-{
-    NSFontDescriptor* desc  = nil;
-    NSFontSymbolicTraits traits = 0;
-    float weight = 0;
-
-    if (m_weight == wxFONTWEIGHT_BOLD)
-    {
-        traits |= NSFontBoldTrait;
-        weight = 1.0;
-    }
-    else if (m_weight == wxFONTWEIGHT_LIGHT)
-        weight = -1;
-
-    if (m_style == wxFONTSTYLE_ITALIC || m_style == wxFONTSTYLE_SLANT)
-        traits |= NSFontItalicTrait;
-
-    desc = [NSFontDescriptor fontDescriptorWithFontAttributes:
-        [[NSDictionary alloc] initWithObjectsAndKeys:
-            wxCFStringRef(m_faceName).AsNSString(), NSFontFamilyAttribute,
-            [NSNumber numberWithFloat:m_pointSize], NSFontSizeAttribute,
-            [NSNumber numberWithUnsignedInt:traits], NSFontSymbolicTrait,
-            [NSNumber numberWithFloat:weight],NSFontWeightTrait,
-            nil]];
-
-    wxMacCocoaRetain(desc);
-    m_nsFontDescriptor = desc;
-}
+static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
+static const NSAffineTransformStruct kSlantNSTransformStruct = { 1, 0, static_cast<CGFloat>(tan(DegToRad(11))), 1, 0, 0  };

 
 WX_NSFont wxFont::OSXCreateNSFont(const wxNativeFontInfo* info)
 {
     NSFont* nsFont;
 
 WX_NSFont wxFont::OSXCreateNSFont(const wxNativeFontInfo* info)
 {
     NSFont* nsFont;

-    nsFont = [NSFont fontWithDescriptor:info->m_nsFontDescriptor size:info->m_pointSize];
+    int weight = 5;
+    NSFontTraitMask traits = 0;
+    if (info->m_weight == wxFONTWEIGHT_BOLD)
+    {
+        traits |= NSBoldFontMask;
+        weight = 9;
+    }
+    else if (info->m_weight == wxFONTWEIGHT_LIGHT)
+        weight = 3;
+
+    if (info->m_style == wxFONTSTYLE_ITALIC || info->m_style == wxFONTSTYLE_SLANT)
+        traits |= NSItalicFontMask;
+    
+    nsFont = [[NSFontManager sharedFontManager] fontWithFamily:wxCFStringRef(info->m_faceName).AsNSString() 
+        traits:traits weight:weight size:info->m_pointSize];
+    
+    if ( nsFont == nil )
+    {
+        NSFontTraitMask remainingTraits = traits;
+        nsFont = [[NSFontManager sharedFontManager] fontWithFamily:wxCFStringRef(info->m_faceName).AsNSString() 
+                                                            traits:0 weight:5 size:info->m_pointSize];
+        if ( nsFont == nil )
+        {
+            if ( info->m_weight == wxFONTWEIGHT_BOLD )
+            {
+                nsFont = [NSFont boldSystemFontOfSize:info->m_pointSize];
+                remainingTraits &= ~NSBoldFontMask;
+            }
+            else
+                nsFont = [NSFont systemFontOfSize:info->m_pointSize];
+        }
+        
+        // fallback - if in doubt, let go of the bold attribute
+        if ( nsFont && (remainingTraits & NSItalicFontMask) )
+        {
+            NSFont* nsFontWithTraits = nil;
+            if ( remainingTraits & NSBoldFontMask)
+            {
+                nsFontWithTraits = [[NSFontManager sharedFontManager] convertFont:nsFont toHaveTrait:NSBoldFontMask];
+                if ( nsFontWithTraits == nil )
+                {
+                    nsFontWithTraits = [[NSFontManager sharedFontManager] convertFont:nsFont toHaveTrait:NSItalicFontMask];
+                    if ( nsFontWithTraits != nil )
+                        remainingTraits &= ~NSItalicFontMask;
+                }
+                else
+                {
+                    remainingTraits &= ~NSBoldFontMask;
+                }
+            }
+            // the code below causes crashes, because fontDescriptorWithMatrix is not returning a valid font descriptor
+            // it adds a NSCTFontMatrixAttribute as well which cannot be disposed of correctly by the autorelease pool
+            // so at the moment we have to disable this and cannot synthesize italic fonts if they are not available on the system
+#if 0
+            if ( remainingTraits & NSItalicFontMask )
+            {
+                if ( nsFontWithTraits == nil )
+                    nsFontWithTraits = nsFont;
+                
+                NSAffineTransform* transform = [NSAffineTransform transform];
+                [transform setTransformStruct:kSlantNSTransformStruct];
+                [transform scaleBy:info->m_pointSize];
+                NSFontDescriptor* italicDesc = [[nsFontWithTraits fontDescriptor] fontDescriptorWithMatrix:transform];
+                if ( italicDesc != nil )
+                {
+                    NSFont* f = [NSFont fontWithDescriptor:italicDesc size:(CGFloat)(info->m_pointSize)];
+                    if ( f != nil )
+                        nsFontWithTraits = f;
+                }
+            }
+#endif
+            if ( nsFontWithTraits != nil )
+                nsFont = nsFontWithTraits;
+        }
+    }
+            
+    wxASSERT_MSG(nsFont != nil,wxT("Couldn't create nsFont")) ;

     wxMacCocoaRetain(nsFont);
     return nsFont;
 }
     wxMacCocoaRetain(nsFont);
     return nsFont;
 }


@@ -265,6 +343,19 @@ WX_UIFont wxFont::OSXCreateUIFont(const wxNativeFontInfo* info)
     return uiFont;
 }
 
     return uiFont;
 }
 

+#endif
+
+// ----------------------------------------------------------------------------
+// NSWindow Utils
+// ----------------------------------------------------------------------------
+
+#if wxOSX_USE_COCOA
+
+WXWindow wxOSXGetMainWindow()
+{
+    return [NSApp mainWindow];
+}
+

 #endif
 // ----------------------------------------------------------------------------
 // NSImage Utils
 #endif
 // ----------------------------------------------------------------------------
 // NSImage Utils


@@ -272,19 +363,37 @@ WX_UIFont wxFont::OSXCreateUIFont(const wxNativeFontInfo* info)
 
 #if wxOSX_USE_IPHONE
 
 
 #if wxOSX_USE_IPHONE
 

-WX_UIImage  wxOSXCreateUIImageFromCGImage( CGImageRef image )
+WX_UIImage  wxOSXGetUIImageFromCGImage( CGImageRef image )

 {
     UIImage  *newImage = [UIImage imageWithCGImage:image];
     [newImage autorelease];
     return( newImage );
 }
 
 {
     UIImage  *newImage = [UIImage imageWithCGImage:image];
     [newImage autorelease];
     return( newImage );
 }
 

+wxBitmap wxOSXCreateSystemBitmap(const wxString& name, const wxString &client, const wxSize& size)
+{
+#if 1
+    // unfortunately this only accesses images in the app bundle, not the system wide globals
+    wxCFStringRef cfname(name);
+    return wxBitmap( [[UIImage imageNamed:cfname.AsNSString()] CGImage] );
+#else
+    return wxBitmap();
+#endif
+}
+

 #endif
 
 #if wxOSX_USE_COCOA
 
 #endif
 
 #if wxOSX_USE_COCOA
 

+wxBitmap wxOSXCreateSystemBitmap(const wxString& name, const wxString &WXUNUSED(client), const wxSize& WXUNUSED(size))
+{
+    wxCFStringRef cfname(name);
+    wxCFRef<CGImageRef> image( wxOSXCreateCGImageFromNSImage([NSImage imageNamed:cfname.AsNSString()]) );
+    return wxBitmap( image );
+}
+

 //  From "Cocoa Drawing Guide:Working with Images"
 //  From "Cocoa Drawing Guide:Working with Images"

-WX_NSImage  wxOSXCreateNSImageFromCGImage( CGImageRef image )
+WX_NSImage  wxOSXGetNSImageFromCGImage( CGImageRef image )

 {
     NSRect      imageRect    = NSMakeRect(0.0, 0.0, 0.0, 0.0);
 
 {
     NSRect      imageRect    = NSMakeRect(0.0, 0.0, 0.0, 0.0);
 


@@ -316,19 +425,22 @@ WX_NSImage  wxOSXCreateNSImageFromCGImage( CGImageRef image )
 CGImageRef wxOSXCreateCGImageFromNSImage( WX_NSImage nsimage )
 {
     // based on http://www.mail-archive.com/cocoa-dev@lists.apple.com/msg18065.html
 CGImageRef wxOSXCreateCGImageFromNSImage( WX_NSImage nsimage )
 {
     // based on http://www.mail-archive.com/cocoa-dev@lists.apple.com/msg18065.html

-    
-    NSSize imageSize = [nsimage size];
-    CGColorSpaceRef genericRGB = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB); 
-    CGContextRef context = CGBitmapContextCreate(NULL, imageSize.width, imageSize.height, 8, 0, genericRGB, kCGImageAlphaPremultipliedFirst); 
-    NSGraphicsContext *nsGraphicsContext = [NSGraphicsContext graphicsContextWithGraphicsPort:context flipped:NO];
-    [NSGraphicsContext saveGraphicsState];
-    [NSGraphicsContext setCurrentContext:nsGraphicsContext];
-    [[NSColor whiteColor] setFill];
-    NSRectFill(NSMakeRect(0.0, 0.0, imageSize.width, imageSize.height));
-    [nsimage drawAtPoint:NSZeroPoint fromRect:NSZeroRect operation:NSCompositeCopy fraction:1.0];
-    [NSGraphicsContext setCurrentContext:nsGraphicsContext];
-    CGImageRef image = CGBitmapContextCreateImage(context);
-    CFRelease(context);
+
+    CGImageRef image = NULL;
+    if (nsimage != nil)
+    {
+        NSSize imageSize = [nsimage size];
+        CGContextRef context = CGBitmapContextCreate(NULL, imageSize.width, imageSize.height, 8, 0, wxMacGetGenericRGBColorSpace(), kCGImageAlphaPremultipliedFirst); 
+        NSGraphicsContext *nsGraphicsContext = [NSGraphicsContext graphicsContextWithGraphicsPort:context flipped:NO];
+        [NSGraphicsContext saveGraphicsState];
+        [NSGraphicsContext setCurrentContext:nsGraphicsContext];
+        [[NSColor whiteColor] setFill];
+        NSRectFill(NSMakeRect(0.0, 0.0, imageSize.width, imageSize.height));
+        [nsimage drawAtPoint:NSZeroPoint fromRect:NSZeroRect operation:NSCompositeCopy fraction:1.0];
+        [NSGraphicsContext setCurrentContext:nsGraphicsContext];
+        image = CGBitmapContextCreateImage(context);
+        CFRelease(context);
+    }

     return image;
  }
 
     return image;
  }
 


@@ -420,8 +532,11 @@ WX_NSCursor wxMacCocoaCreateStockCursor( int cursor_type )
 
     case wxCURSOR_WATCH:
     case wxCURSOR_WAIT:
 
     case wxCURSOR_WATCH:
     case wxCURSOR_WAIT:

-        // should be displayed by the system when things are running
-        cursor = [[NSCursor arrowCursor] retain];
+        // an arrow should be displayed by the system when things are running
+        // according to the HIG
+        // cursor = [[NSCursor arrowCursor] retain];
+        // but for crossplatform compatibility we display a watch cursor
+        cursor = wxGetStockCursor(kwxCursorWatch);

         break;
 
     case wxCURSOR_IBEAM:
         break;
 
     case wxCURSOR_IBEAM:


@@ -532,11 +647,9 @@ WX_NSCursor  wxMacCocoaCreateCursorFromCGImage( CGImageRef cgImageRef, float hot
         firstTime = NO;
     }
 
         firstTime = NO;
     }
 

-    NSImage    *nsImage  = wxOSXCreateNSImageFromCGImage( cgImageRef );
+    NSImage    *nsImage  = wxOSXGetNSImageFromCGImage( cgImageRef );

     NSCursor  *cursor    = [[NSCursor alloc] initWithImage:nsImage hotSpot:NSMakePoint( hotSpotX, hotSpotY )];
 
     NSCursor  *cursor    = [[NSCursor alloc] initWithImage:nsImage hotSpot:NSMakePoint( hotSpotX, hotSpotY )];
 

-    [nsImage release];
-

     return cursor;
 }
 
     return cursor;
 }