making implementation independent of a wx-peer of that control

[wxWidgets.git] / src / mac / carbon / display.cpp

diff --git a/src/mac/carbon/display.cpp b/src/mac/carbon/display.cpp
index 8c6bc2b09e76853a317dd116c3f64d62e0c2f274..f09d7b1f7547101322faa89d0ef0b4d29e074925 100644 (file)
--- a/src/mac/carbon/display.cpp
+++ b/src/mac/carbon/display.cpp
@@ -46,6 +46,176 @@
 // private classes
 // ----------------------------------------------------------------------------
 
+#ifdef __WXMAC_OSX__
+
+class wxDisplayMacPriv
+{
+public:
+    CGDirectDisplayID m_id;
+};
+
+size_t wxDisplayBase::GetCount()
+{
+    CGDisplayCount count;
+#ifdef __WXDEBUG__
+    CGDisplayErr err = 
+#endif
+    CGGetActiveDisplayList(0, NULL, &count);
+
+    wxASSERT(err == CGDisplayNoErr);
+    return count;
+}
+
+int wxDisplayBase::GetFromPoint(const wxPoint &p)
+{   
+    CGPoint thePoint = {(float)p.x, (float)p.y};
+    CGDirectDisplayID theID;
+    CGDisplayCount theCount;
+    CGDisplayErr err = CGGetDisplaysWithPoint(thePoint, 1, &theID, &theCount);
+    wxASSERT(err == CGDisplayNoErr);
+    int nWhich = -1;
+    
+    if (theCount)
+    {
+        theCount = GetCount();
+        CGDirectDisplayID* theIDs = new CGDirectDisplayID[theCount];
+        err = CGGetActiveDisplayList(theCount, theIDs, &theCount);
+        wxASSERT(err == CGDisplayNoErr);
+
+        for(nWhich = 0; nWhich < (int) theCount; ++nWhich)
+        {
+            if(theIDs[nWhich] == theID)
+                break;
+        }
+        
+        delete[] theIDs;
+        
+        if(nWhich == (int) theCount)
+        {
+            wxFAIL_MSG(wxT("Failed to find display in display list"));
+            nWhich = -1;
+        }
+    }
+    
+    return nWhich;
+}//CFUserNotification[NSBundle bundleForClass:[self class]]
+
+wxDisplay::wxDisplay(size_t index) : wxDisplayBase ( index ) ,
+    m_priv ( new wxDisplayMacPriv() )
+{
+    CGDisplayCount theCount = GetCount();
+    CGDirectDisplayID* theIDs = new CGDirectDisplayID[theCount];
+#ifdef __WXDEBUG__
+    CGDisplayErr err = 
+#endif
+    CGGetActiveDisplayList(theCount, theIDs, &theCount);
+
+    wxASSERT(err == CGDisplayNoErr);
+    wxASSERT(index < theCount);
+    
+    m_priv->m_id = theIDs[index];
+    
+    delete[] theIDs;
+}
+
+wxRect wxDisplay::GetGeometry() const
+{
+    CGRect theRect = CGDisplayBounds(m_priv->m_id);
+    return wxRect(     (int)theRect.origin.x,
+                    (int)theRect.origin.y,
+                    (int)theRect.size.width,
+                    (int)theRect.size.height  ); //floats
+}
+
+int wxDisplay::GetDepth() const
+{
+    return (int) CGDisplayBitsPerPixel(m_priv->m_id); //size_t
+}
+
+wxString wxDisplay::GetName() const
+{
+    // Macs don't name their displays...
+    return wxEmptyString;
+}
+
+static int wxCFDictKeyToInt( CFDictionaryRef desc, CFStringRef key )
+{
+    CFNumberRef value;
+    int num = 0;
+
+    if ( (value = (CFNumberRef) CFDictionaryGetValue(desc, key)) == NULL )
+        return 0;
+    CFNumberGetValue(value, kCFNumberIntType, &num);
+    return num;
+}
+
+wxArrayVideoModes
+    wxDisplay::GetModes(const wxVideoMode& mode) const
+{
+    wxArrayVideoModes Modes;
+    
+    CFArrayRef theArray = CGDisplayAvailableModes(m_priv->m_id);
+
+    for(CFIndex i = 0; i < CFArrayGetCount(theArray); ++i)
+    {
+        CFDictionaryRef theValue = (CFDictionaryRef) CFArrayGetValueAtIndex(theArray, i);
+        
+        wxVideoMode theMode(wxCFDictKeyToInt(theValue, kCGDisplayWidth),
+                            wxCFDictKeyToInt(theValue, kCGDisplayHeight),
+                            wxCFDictKeyToInt(theValue, kCGDisplayBitsPerPixel),
+                            wxCFDictKeyToInt(theValue, kCGDisplayRefreshRate));
+        
+        if (theMode.Matches(mode))
+            Modes.Add(theMode);
+    }
+    
+    return Modes;
+}
+
+wxVideoMode wxDisplay::GetCurrentMode() const
+{
+    CFDictionaryRef theValue = CGDisplayCurrentMode (m_priv->m_id);
+    
+    return wxVideoMode(wxCFDictKeyToInt(theValue, kCGDisplayWidth),
+                            wxCFDictKeyToInt(theValue, kCGDisplayHeight),
+                            wxCFDictKeyToInt(theValue, kCGDisplayBitsPerPixel),
+                            wxCFDictKeyToInt(theValue, kCGDisplayRefreshRate));
+}
+
+bool wxDisplay::ChangeMode(const wxVideoMode& mode)
+{
+    //Changing to default mode (wxDefualtVideoMode) doesn't
+    //work because we don't have access to the system's 'scrn'
+    //resource which holds the user's mode which the system
+    //will return to after this app is done
+    boolean_t bExactMatch;
+    CFDictionaryRef theCGMode = CGDisplayBestModeForParametersAndRefreshRate (
+                                        m_priv->m_id,
+                                        (size_t)mode.bpp,
+                                        (size_t)mode.w,
+                                        (size_t)mode.h,
+                                        (double)mode.refresh,
+                                        &bExactMatch);
+    
+    bool bOK = bExactMatch;
+    
+    if(bOK)
+        bOK = CGDisplaySwitchToMode(m_priv->m_id, theCGMode) == CGDisplayNoErr;
+
+    return bOK;
+}
+
+wxDisplay::~wxDisplay()
+{
+    if ( m_priv )
+    {
+        delete m_priv;
+        m_priv = 0;
+    }
+}
+
+#else
+
 class wxDisplayMacPriv
 {
 public:
@@ -460,4 +630,6 @@ wxDisplay::~wxDisplay()
     }
 }
 
+#endif // !OSX
+
 #endif // wxUSE_DISPLAY