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notify the event loop that synthesized events are on the queue, wait for them to...
[wxWidgets.git] / src / osx / cocoa / button.mm
index ee7070142cc58d4c41ed3dcdb3d30513d7e2c719..df1e092402d485fd6e8953d4acd89096c278d507 100644 (file)
 // Author:      Stefan Csomor
 // Modified by:
 // Created:     1998-01-01
-// RCS-ID:      $Id: button.cpp 54845 2008-07-30 14:52:41Z SC $
+// RCS-ID:      $Id$
 // Copyright:   (c) Stefan Csomor
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #include "wx/wxprec.h"
 
-#include "wx/button.h"
-
 #ifndef WX_PRECOMP
-    #include "wx/panel.h"
-    #include "wx/toplevel.h"
-    #include "wx/dcclient.h"
+#include "wx/object.h"
 #endif
 
-#include "wx/stockitem.h"
+#include "wx/button.h"
+#include "wx/toplevel.h"
+#include "wx/tglbtn.h"
 
 #include "wx/osx/private.h"
 
-wxSize wxButton::DoGetBestSize() const
-{
-    if ( GetId() == wxID_HELP )
-        return wxSize( 20 , 20 ) ;
-
-    wxSize sz = GetDefaultSize() ;
-
-    switch (GetWindowVariant())
-    {
-        case wxWINDOW_VARIANT_NORMAL:
-        case wxWINDOW_VARIANT_LARGE:
-            sz.y = 23 ;
-            break;
-
-        case wxWINDOW_VARIANT_SMALL:
-            sz.y = 17 ;
-            break;
-
-        case wxWINDOW_VARIANT_MINI:
-            sz.y = 15 ;
-            break;
-
-        default:
-            break;
-    }
-
-    wxRect r ;
-        
-    m_peer->GetBestRect(&r);
-
-    if ( r.GetWidth() == 0 && r.GetHeight() == 0 )
-    {
-    }
-    sz.x = r.GetWidth();
-    sz.y = r.GetHeight();
-
-    int wBtn = 96;
-    
-    if ((wBtn > sz.x) || ( GetWindowStyle() & wxBU_EXACTFIT))
-        sz.x = wBtn;
-
-#if wxOSX_USE_CARBON
-    Rect    bestsize = { 0 , 0 , 0 , 0 } ;
-    m_peer->GetBestRect( &bestsize ) ;
-
-    int wBtn;
-    if ( EmptyRect( &bestsize ) || ( GetWindowStyle() & wxBU_EXACTFIT) )
-    {
-        Point bounds;
-
-        ControlFontStyleRec controlFont;
-        OSStatus err = m_peer->GetData<ControlFontStyleRec>( kControlEntireControl, kControlFontStyleTag, &controlFont );
-        verify_noerr( err );
-
-        wxCFStringRef str( m_label,  GetFont().GetEncoding() );
+#if wxUSE_MARKUP
+    #include "wx/osx/cocoa/private/markuptoattr.h"
+#endif // wxUSE_MARKUP
 
-#if wxOSX_USE_ATSU_TEXT
-        SInt16 baseline;
-        if ( m_font.MacGetThemeFontID() != kThemeCurrentPortFont )
-        {
-            err = GetThemeTextDimensions(
-                (!m_label.empty() ? (CFStringRef)str : CFSTR(" ")),
-                m_font.MacGetThemeFontID(), kThemeStateActive, false, &bounds, &baseline );
-            verify_noerr( err );
-        }
-        else
-#endif
-        {
-            wxClientDC dc(const_cast<wxButton*>(this));
-            wxCoord width, height ;
-            dc.GetTextExtent( m_label , &width, &height);
-            bounds.h = width;
-            bounds.v = height;
-        }
-
-        wBtn = bounds.h + sz.y;
-    }
-    else
-    {
-        wBtn = bestsize.right - bestsize.left ;
-        // non 'normal' window variants don't return the correct height
-        // sz.y = bestsize.bottom - bestsize.top ;
-    }
-    if ((wBtn > sz.x) || ( GetWindowStyle() & wxBU_EXACTFIT))
-        sz.x = wBtn;
-#endif
-
-    return sz ;
-}
-
-wxSize wxButton::GetDefaultSize()
-{
-    int wBtn = 70 ;
-    int hBtn = 20 ;
-
-    return wxSize(wBtn, hBtn);
-}
 
 @implementation wxNSButton
 
-- (id)initWithFrame:(NSRect)frame
++ (void)initialize
 {
-    [super initWithFrame:frame];
-    impl = NULL;
-    [self setTarget: self];
-    [self setAction: @selector(clickedAction:)];
-    return self;
-}
-
-WXCOCOAIMPL_COMMON_IMPLEMENTATION
-
-- (void) clickedAction: (id) sender
-{
-    if ( impl )
+    static BOOL initialized = NO;
+    if (!initialized)
     {
-        wxWindow* wxpeer = (wxWindow*) impl->GetWXPeer();
-        if ( wxpeer )
-            wxpeer->OSXHandleClicked(0);
+        initialized = YES;
+        wxOSXCocoaClassAddWXMethods( self );
     }
 }
 
@@ -173,111 +67,443 @@ WXCOCOAIMPL_COMMON_IMPLEMENTATION
     }
 }
 
+- (void) setTrackingTag: (NSTrackingRectTag)tag
+{
+    rectTag = tag;
+}
+
+- (NSTrackingRectTag) trackingTag
+{
+    return rectTag;
+}
+
 @end
 
+@interface NSView(PossibleSizeMethods)
+- (NSControlSize)controlSize;
+@end
 
-wxWidgetImplType* wxWidgetImpl::CreateButton( wxWindowMac* wxpeer, 
-                                    wxWindowMac* parent, 
-                                    wxWindowID id, 
-                                    const wxString& label,
-                                    const wxPoint& pos, 
-                                    const wxSize& size,
-                                    long style, 
-                                    long extraStyle) 
+wxButtonCocoaImpl::wxButtonCocoaImpl(wxWindowMac *wxpeer, wxNSButton *v)
+: wxWidgetCocoaImpl(wxpeer, v)
 {
-    NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
-    wxNSButton* v = [[wxNSButton alloc] initWithFrame:r];
+    SetNeedsFrame(false);
+}
+
+void wxButtonCocoaImpl::SetBitmap(const wxBitmap& bitmap)
+{
+    // switch bezel style for plain pushbuttons
+    if ( bitmap.IsOk() )
+    {
+        if ([GetNSButton() bezelStyle] == NSRoundedBezelStyle)
+            [GetNSButton() setBezelStyle:NSRegularSquareBezelStyle];
+    }
+    else
+    {
+        [GetNSButton() setBezelStyle:NSRoundedBezelStyle];
+    }
     
-    if ( id == wxID_HELP )
+    wxWidgetCocoaImpl::SetBitmap(bitmap);
+}
+
+#if wxUSE_MARKUP
+void wxButtonCocoaImpl::SetLabelMarkup(const wxString& markup)
+{
+    wxMarkupToAttrString toAttr(GetWXPeer(), markup);
+    NSMutableAttributedString *attrString = toAttr.GetNSAttributedString();
+    
+    // Button text is always centered.
+    NSMutableParagraphStyle *
+    paragraphStyle = [[NSMutableParagraphStyle alloc] init];
+    [paragraphStyle setAlignment: NSCenterTextAlignment];
+    [attrString addAttribute:NSParagraphStyleAttributeName
+                       value:paragraphStyle
+                       range:NSMakeRange(0, [attrString length])];
+    [paragraphStyle release];
+    
+    [GetNSButton() setAttributedTitle:attrString];
+}
+#endif // wxUSE_MARKUP
+
+void wxButtonCocoaImpl::SetPressedBitmap( const wxBitmap& bitmap )
+{
+    NSButton* button = GetNSButton();
+    [button setAlternateImage: bitmap.GetNSImage()];
+    if ( GetWXPeer()->IsKindOf(wxCLASSINFO(wxToggleButton)) )
     {
-        [v setBezelStyle:NSHelpButtonBezelStyle];
+        [button setButtonType:NSToggleButton];
     }
     else
     {
-        [v setBezelStyle:NSRoundedBezelStyle];
+        [button setButtonType:NSMomentaryChangeButton];
+    }
+}
+
+void wxButtonCocoaImpl::GetLayoutInset(int &left , int &top , int &right, int &bottom) const
+{
+    left = top = right = bottom = 0;
+    NSControlSize size = NSRegularControlSize;
+    if ( [m_osxView respondsToSelector:@selector(controlSize)] )
+        size = [m_osxView controlSize];
+    else if ([m_osxView respondsToSelector:@selector(cell)])
+    {
+        id cell = [(id)m_osxView cell];
+        if ([cell respondsToSelector:@selector(controlSize)])
+            size = [cell controlSize];
     }
     
-    [v setButtonType:NSMomentaryPushInButton];
-    wxWidgetCocoaImpl* c = new wxWidgetCocoaImpl( wxpeer, v );
-    [v setImplementation:c];
-    return c;
-/*
-    OSStatus err;
-    Rect bounds = wxMacGetBoundsForControl( wxpeer , pos , size ) ;
-    wxMacControl* peer = new wxMacControl(wxpeer) ;
-    if ( id == wxID_HELP )
+    if ( [GetNSButton() bezelStyle] == NSRoundedBezelStyle )
+    {
+        switch( size )
+        {
+            case NSRegularControlSize:
+                left = right = 6;
+                top = 4;
+                bottom = 8;
+                break;
+            case NSSmallControlSize:
+                left = right = 5;
+                top = 4;
+                bottom = 7;
+                break;
+            case NSMiniControlSize:
+                left = right = 1;
+                top = 0;
+                bottom = 2;
+                break;
+        }
+    }
+}
+
+void wxButtonCocoaImpl::SetAcceleratorFromLabel(const wxString& label)
+{
+    const int accelPos = wxControl::FindAccelIndex(label);
+    if ( accelPos != wxNOT_FOUND )
+    {
+        wxString accelstring(label[accelPos + 1]); // Skip '&' itself
+        accelstring.MakeLower();
+        wxCFStringRef cfText(accelstring);
+        [GetNSButton() setKeyEquivalent:cfText.AsNSString()];
+        [GetNSButton() setKeyEquivalentModifierMask:NSCommandKeyMask];
+    }
+    else
+    {
+        [GetNSButton() setKeyEquivalent:@""];
+    }
+}
+
+NSButton *wxButtonCocoaImpl::GetNSButton() const
+{
+    wxASSERT( [m_osxView isKindOfClass:[NSButton class]] );
+    
+    return static_cast<NSButton *>(m_osxView);
+}
+
+// Set bezel style depending on the wxBORDER_XXX flags specified by the style
+// and also accounting for the label (bezels are different for multiline
+// buttons and normal ones) and the ID (special bezel is used for help button).
+//
+// This is extern because it's also used in src/osx/cocoa/tglbtn.mm.
+extern "C"
+void
+SetBezelStyleFromBorderFlags(NSButton *v,
+                             long style,
+                             wxWindowID winid,
+                             const wxString& label = wxString(),
+                             const wxBitmap& bitmap = wxBitmap())
+{
+    // We can't display a custom label inside a button with help bezel style so
+    // we only use it if we are using the default label. wxButton itself checks
+    // if the label is just "Help" in which case it discards it and passes us
+    // an empty string.
+    if ( winid == wxID_HELP && label.empty() )
     {
-        ControlButtonContentInfo info ;
-        info.contentType = kControlContentIconRef ;
-        GetIconRef(kOnSystemDisk, kSystemIconsCreator, kHelpIcon, &info.u.iconRef);
-        err = CreateRoundButtonControl(
-            MAC_WXHWND(parent->MacGetTopLevelWindowRef()),
-            &bounds, kControlRoundButtonNormalSize,
-            &info, peer->GetControlRefAddr() );
+        [v setBezelStyle:NSHelpButtonBezelStyle];
     }
-    else if ( label.Find('\n' ) == wxNOT_FOUND && label.Find('\r' ) == wxNOT_FOUND)
+    else
     {
-        // Button height is static in Mac, can't be changed, so we need to force it here
-        int maxHeight;
-        switch (wxpeer->GetWindowVariant() ) 
+        // We can't use rounded bezel styles neither for multiline buttons nor
+        // for buttons containing (big) icons as they are only meant to be used
+        // at certain sizes, so the style used depends on whether the label is
+        // single or multi line.
+        const bool
+            isSimpleText = (label.find_first_of("\n\r") == wxString::npos)
+                                && (!bitmap.IsOk() || bitmap.GetHeight() < 20);
+
+        NSBezelStyle bezel;
+        switch ( style & wxBORDER_MASK )
         {
-            case wxWINDOW_VARIANT_NORMAL:
-            case wxWINDOW_VARIANT_LARGE:
-                maxHeight = 20 ;
+            case wxBORDER_NONE:
+                bezel = NSShadowlessSquareBezelStyle;
+                [v setBordered:NO];
+                break;
+
+            case wxBORDER_SIMPLE:
+                bezel = NSShadowlessSquareBezelStyle;
                 break;
-            case wxWINDOW_VARIANT_SMALL:
-                maxHeight = 17;
-            case wxWINDOW_VARIANT_MINI:
-                maxHeight = 15;
+
+            case wxBORDER_SUNKEN:
+                bezel = isSimpleText ? NSTexturedRoundedBezelStyle
+                                     : NSSmallSquareBezelStyle;
+                break;
+
             default:
+                wxFAIL_MSG( "Unknown border style" );
+                // fall through
+
+            case 0:
+            case wxBORDER_STATIC:
+            case wxBORDER_RAISED:
+            case wxBORDER_THEME:
+                bezel = isSimpleText ? NSRoundedBezelStyle
+                                     : NSRegularSquareBezelStyle;
                 break;
         }
-        bounds.bottom = bounds.top + maxHeight ;
-        wxpeer->SetMaxSize( wxSize( wxpeer->GetMaxWidth() , maxHeight ));
-        err = CreatePushButtonControl(
-            MAC_WXHWND(parent->MacGetTopLevelWindowRef()),
-            &bounds, CFSTR(""), peer->GetControlRefAddr() );
+
+        [v setBezelStyle:bezel];
     }
-    else
+}
+
+// Set the keyboard accelerator key from the label (e.g. "Click &Me")
+void wxButton::OSXUpdateAfterLabelChange(const wxString& label)
+{
+    wxButtonCocoaImpl *impl = static_cast<wxButtonCocoaImpl*>(GetPeer());
+
+    // Update the bezel style as may be necessary if our new label is multi
+    // line while the old one wasn't (or vice versa).
+    SetBezelStyleFromBorderFlags(impl->GetNSButton(),
+                                 GetWindowStyle(),
+                                 GetId(),
+                                 label);
+
+
+    // Skip setting the accelerator for the default buttons as this would
+    // overwrite the default "Enter" which should be preserved.
+    wxTopLevelWindow * const
+        tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
+    if ( tlw )
     {
-        ControlButtonContentInfo info ;
-        info.contentType = kControlNoContent ;
-        err = CreateBevelButtonControl(
-            MAC_WXHWND(parent->MacGetTopLevelWindowRef()) , &bounds, CFSTR(""),
-            kControlBevelButtonLargeBevel, kControlBehaviorPushbutton,
-            &info, 0, 0, 0, peer->GetControlRefAddr() );
+        if ( tlw->GetDefaultItem() == this )
+            return;
     }
-    verify_noerr( err );
-    return peer;
-    */
+
+    impl->SetAcceleratorFromLabel(label);
+}
+
+
+wxWidgetImplType* wxWidgetImpl::CreateButton( wxWindowMac* wxpeer,
+                                    wxWindowMac* WXUNUSED(parent),
+                                    wxWindowID winid,
+                                    const wxString& label,
+                                    const wxPoint& pos,
+                                    const wxSize& size,
+                                    long style,
+                                    long WXUNUSED(extraStyle))
+{
+    NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
+    wxNSButton* v = [[wxNSButton alloc] initWithFrame:r];
+
+    SetBezelStyleFromBorderFlags(v, style, winid, label);
+
+    [v setButtonType:NSMomentaryPushInButton];
+    wxButtonCocoaImpl* const impl = new wxButtonCocoaImpl( wxpeer, v );
+    impl->SetAcceleratorFromLabel(label);
+    return impl;
 }
 
 void wxWidgetCocoaImpl::SetDefaultButton( bool isDefault )
-{ 
+{
     if ( [m_osxView isKindOfClass:[NSButton class]] )
-        [(NSButton*)m_osxView setKeyEquivalent: isDefault ? @"\r" : nil ];
+    {
+        if ( isDefault )
+        {
+            [(NSButton*)m_osxView setKeyEquivalent: @"\r" ];
+            [(NSButton*)m_osxView setKeyEquivalentModifierMask: 0];
+        }
+        else
+            [(NSButton*)m_osxView setKeyEquivalent: @"" ];
+    }
 }
 
-void wxWidgetCocoaImpl::PerformClick() 
+void wxWidgetCocoaImpl::PerformClick()
 {
+    if ([m_osxView isKindOfClass:[NSControl class]])
+        [(NSControl*)m_osxView performClick:nil];
 }
 
-wxWidgetImplType* wxWidgetImpl::CreateDisclosureTriangle( wxWindowMac* wxpeer, 
-                                    wxWindowMac* parent, 
-                                    wxWindowID id, 
-                                    const wxString& label,
-                                    const wxPoint& pos, 
-                                    const wxSize& size,
-                                    long style, 
-                                    long extraStyle) 
+#if wxUSE_BMPBUTTON
+
+wxWidgetImplType* wxWidgetImpl::CreateBitmapButton( wxWindowMac* wxpeer,
+                                                   wxWindowMac* WXUNUSED(parent),
+                                                   wxWindowID winid,
+                                                   const wxBitmap& bitmap,
+                                                   const wxPoint& pos,
+                                                   const wxSize& size,
+                                                   long style,
+                                                   long WXUNUSED(extraStyle))
 {
     NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
     wxNSButton* v = [[wxNSButton alloc] initWithFrame:r];
-    [v setBezelStyle:NSDisclosureBezelStyle];
-    [v setButtonType:NSOnOffButton];
-    [v setTitle:wxCFStringRef( label).AsNSString()];
-    [v setImagePosition:NSImageRight];
-    wxWidgetCocoaImpl* c = new wxWidgetCocoaImpl( wxpeer, v );
-    [v setImplementation:c];
+
+    SetBezelStyleFromBorderFlags(v, style, winid, wxString(), bitmap);
+
+    if (bitmap.IsOk())
+        [v setImage:bitmap.GetNSImage() ];
+
+    [v setButtonType:NSMomentaryPushInButton];
+    wxWidgetCocoaImpl* c = new wxButtonCocoaImpl( wxpeer, v );
     return c;
 }
+
+#endif // wxUSE_BMPBUTTON
+
+//
+// wxDisclosureButton implementation
+//
+
+@interface wxDisclosureNSButton : NSButton
+{
+
+    BOOL isOpen;
+}
+
+- (void) updateImage;
+
+- (void) toggle;
+
++ (NSImage *)rotateImage: (NSImage *)image;
+
+@end
+
+static const char * disc_triangle_xpm[] = {
+"10 9 4 1",
+"   c None",
+".  c #737373",
+"+  c #989898",
+"-  c #c6c6c6",
+" .-       ",
+" ..+-     ",
+" ....+    ",
+" ......-  ",
+" .......- ",
+" ......-  ",
+" ....+    ",
+" ..+-     ",
+" .-       ",
+};
+
+@implementation wxDisclosureNSButton
+
++ (void)initialize
+{
+    static BOOL initialized = NO;
+    if (!initialized)
+    {
+        initialized = YES;
+        wxOSXCocoaClassAddWXMethods( self );
+    }
+}
+
+- (id) initWithFrame:(NSRect) frame
+{
+    self = [super initWithFrame:frame];
+    isOpen = NO;
+    [self setImagePosition:NSImageLeft];
+    [self updateImage];
+    return self;
+}
+
+- (int) intValue
+{
+    return isOpen ? 1 : 0;
+}
+
+- (void) setIntValue: (int) v
+{
+    isOpen = ( v != 0 );
+    [self updateImage];
+}
+
+- (void) toggle
+{
+    isOpen = !isOpen;
+    [self updateImage];
+}
+
+wxCFRef<NSImage*> downArray ;
+
+- (void) updateImage
+{
+    static wxBitmap trianglebm(disc_triangle_xpm);
+    if ( downArray.get() == NULL )
+    {
+        downArray.reset( [[wxDisclosureNSButton rotateImage:trianglebm.GetNSImage()] retain] );
+    }
+
+    if ( isOpen )
+        [self setImage:(NSImage*)downArray.get()];
+    else
+        [self setImage:trianglebm.GetNSImage()];
+}
+
++ (NSImage *)rotateImage: (NSImage *)image
+{
+    NSSize imageSize = [image size];
+    NSSize newImageSize = NSMakeSize(imageSize.height, imageSize.width);
+    NSImage* newImage = [[NSImage alloc] initWithSize: newImageSize];
+
+    [newImage lockFocus];
+
+    NSAffineTransform* tm = [NSAffineTransform transform];
+    [tm translateXBy:newImageSize.width/2 yBy:newImageSize.height/2];
+    [tm rotateByDegrees:-90];
+    [tm translateXBy:-newImageSize.width/2 yBy:-newImageSize.height/2];
+    [tm concat];
+
+
+    [image drawInRect:NSMakeRect(0,0,newImageSize.width, newImageSize.height)
+        fromRect:NSZeroRect operation:NSCompositeCopy fraction:1.0];
+
+    [newImage unlockFocus];
+    return [newImage autorelease];
+}
+
+@end
+
+class wxDisclosureTriangleCocoaImpl : public wxWidgetCocoaImpl
+{
+public :
+    wxDisclosureTriangleCocoaImpl(wxWindowMac* peer , WXWidget w) :
+        wxWidgetCocoaImpl(peer, w)
+    {
+    }
+
+    ~wxDisclosureTriangleCocoaImpl()
+    {
+    }
+
+    virtual void controlAction(WXWidget slf, void* _cmd, void *sender)
+    {
+        wxDisclosureNSButton* db = (wxDisclosureNSButton*)m_osxView;
+        [db toggle];
+        wxWidgetCocoaImpl::controlAction(slf, _cmd, sender );
+    }
+};
+
+wxWidgetImplType* wxWidgetImpl::CreateDisclosureTriangle( wxWindowMac* wxpeer,
+                                    wxWindowMac* WXUNUSED(parent),
+                                    wxWindowID winid,
+                                    const wxString& label,
+                                    const wxPoint& pos,
+                                    const wxSize& size,
+                                    long style,
+                                    long WXUNUSED(extraStyle))
+{
+    NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
+    wxDisclosureNSButton* v = [[wxDisclosureNSButton alloc] initWithFrame:r];
+    if ( !label.empty() )
+        [v setTitle:wxCFStringRef(label).AsNSString()];
+
+    SetBezelStyleFromBorderFlags(v, style, winid, label);
+
+    return new wxDisclosureTriangleCocoaImpl( wxpeer, v );
+}