Performance optimization

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

diff --git a/src/mac/carbon/display.cpp b/src/mac/carbon/display.cpp
index d3b03d203c4b0c6cb2b2e46de8771d1a217dc0d2..99c51f04cee4674751ffda789748365246b9f302 100644 (file)
--- a/src/mac/carbon/display.cpp
+++ b/src/mac/carbon/display.cpp
@@ -1,19 +1,22 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        display.cpp
+// Name:        src/mac/carbon/display.cpp

 // Purpose:     Mac implementation of wxDisplay class
 // Purpose:     Mac implementation of wxDisplay class

-// Author:      Brian Victor
-// Modified by: Royce Mitchell III
+// Author:      Ryan Norton & Brian Victor
+// Modified by: Royce Mitchell III, Vadim Zeitlin

 // Created:     06/21/02
 // RCS-ID:      $Id$
 // Created:     06/21/02
 // RCS-ID:      $Id$

-// Copyright:   (c) wxWindows team
+// Copyright:   (c) wxWidgets team

 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-    #pragma implementation "display.h"
-#endif
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------

 
 

-// For compilers that support precompilation, includes "wx.h".

 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__


@@ -22,133 +25,231 @@
 
 #if wxUSE_DISPLAY
 
 
 #if wxUSE_DISPLAY
 

+#include "wx/display.h"
+

 #ifndef WX_PRECOMP
 #ifndef WX_PRECOMP

-   #include "wx/dynarray.h"
+    #include "wx/dynarray.h"
+    #include "wx/log.h"
+    #include "wx/string.h"
+    #include "wx/gdicmn.h"

 #endif
 
 #endif
 

-#ifdef __DARWIN__
-    #include <Carbon/Carbon.h>
-#else
-    #include <Displays.h>
-    #include <Quickdraw.h>
-#endif
+#include <Carbon/Carbon.h>

 
 

-#include "wx/display.h"
-#include "wx/gdicmn.h"
-#include "wx/string.h"
+#include "wx/display_impl.h"

 
 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------

-// private classes
+// display classes implementation

 // ----------------------------------------------------------------------------
 
 // ----------------------------------------------------------------------------
 

-class wxDisplayMacPriv
+class wxDisplayImplMacOSX : public wxDisplayImpl

 {
 public:
 {
 public:

-    GDHandle m_hndl;
+    wxDisplayImplMacOSX(unsigned n, CGDirectDisplayID id)
+        : wxDisplayImpl(n),
+          m_id(id)
+    {
+    }
+
+    virtual wxRect GetGeometry() const;
+    virtual wxRect GetClientArea() const;
+    virtual wxString GetName() const { return wxString(); }
+
+    virtual wxArrayVideoModes GetModes(const wxVideoMode& mode) const;
+    virtual wxVideoMode GetCurrentMode() const;
+    virtual bool ChangeMode(const wxVideoMode& mode);
+
+private:
+    CGDirectDisplayID m_id;
+
+    DECLARE_NO_COPY_CLASS(wxDisplayImplMacOSX)

 };
 
 };
 

-size_t wxDisplayBase::GetCount()
+class wxDisplayFactoryMacOSX : public wxDisplayFactory

 {
 {

-    GDHandle hndl;
-    size_t num = 0;
-    hndl = DMGetFirstScreenDevice(true);
-    while(hndl)
-    {
-        num++;
-        hndl = DMGetNextScreenDevice(hndl, true);
-    }
-    return num;
+public:
+    wxDisplayFactoryMacOSX() {}
+
+    virtual wxDisplayImpl *CreateDisplay(unsigned n);
+    virtual unsigned GetCount();
+    virtual int GetFromPoint(const wxPoint& pt);
+
+protected:
+    DECLARE_NO_COPY_CLASS(wxDisplayFactoryMacOSX)
+};
+
+// ============================================================================
+// wxDisplayFactoryMacOSX implementation
+// ============================================================================
+
+unsigned wxDisplayFactoryMacOSX::GetCount()
+{
+    CGDisplayCount count;
+#ifdef __WXDEBUG__
+    CGDisplayErr err =
+#endif
+    CGGetActiveDisplayList(0, NULL, &count);
+
+    wxASSERT(err == CGDisplayNoErr);
+
+    return count;

 }
 
 }
 

-int wxDisplayBase::GetFromPoint(const wxPoint &p)
+int wxDisplayFactoryMacOSX::GetFromPoint(const wxPoint& p)

 {
 {

-    GDHandle hndl;
-    size_t num = 0;
-    hndl = DMGetFirstScreenDevice(true);
-    while(hndl)
+    CGPoint thePoint = {(float)p.x, (float)p.y};
+    CGDirectDisplayID theID;
+    CGDisplayCount theCount;
+    CGDisplayErr err = CGGetDisplaysWithPoint(thePoint, 1, &theID, &theCount);
+    wxASSERT(err == CGDisplayNoErr);
+
+    int nWhich = wxNOT_FOUND;
+
+    if (theCount)

     {
     {

-        Rect screenrect = (*hndl)->gdRect;
-        if (p.x >= screenrect.left &&
-            p.x <= screenrect.right &&
-            p.y >= screenrect.top &&
-            p.y <= screenrect.bottom)
+        theCount = GetCount();
+        CGDirectDisplayID* theIDs = new CGDirectDisplayID[theCount];
+        err = CGGetActiveDisplayList(theCount, theIDs, &theCount);
+        wxASSERT(err == CGDisplayNoErr);
+
+        for (nWhich = 0; nWhich < (int) theCount; ++nWhich)

         {
         {

-            return num;
+            if (theIDs[nWhich] == theID)
+                break;

         }
         }

-        num++;
-        hndl = DMGetNextScreenDevice(hndl, true);
-    }
-    return -1;
-}

 
 

-wxDisplay::wxDisplay(size_t index) : wxDisplayBase ( index ),
-    m_priv ( new wxDisplayMacPriv() )
-{
-    GDHandle hndl;
-    hndl = DMGetFirstScreenDevice(true);
-    m_priv->m_hndl = NULL;
-    while(hndl)
-    {
-        if (index == 0)
+        delete [] theIDs;
+
+        if (nWhich == (int) theCount)

         {
         {

-            m_priv->m_hndl = hndl;
+            wxFAIL_MSG(wxT("Failed to find display in display list"));
+            nWhich = wxNOT_FOUND;

         }
         }

-        index--;
-        hndl = DMGetNextScreenDevice(hndl, true);

     }
     }

+
+    return nWhich;
+}
+
+wxDisplayImpl *wxDisplayFactoryMacOSX::CreateDisplay(unsigned n)
+{
+    CGDisplayCount theCount = GetCount();
+    CGDirectDisplayID* theIDs = new CGDirectDisplayID[theCount];
+
+#ifdef __WXDEBUG__
+    CGDisplayErr err =
+#endif
+    CGGetActiveDisplayList(theCount, theIDs, &theCount);
+
+    wxASSERT( err == CGDisplayNoErr );
+    wxASSERT( n < theCount );
+
+    wxDisplayImplMacOSX *display = new wxDisplayImplMacOSX(n, theIDs[n]);
+
+    delete [] theIDs;
+
+    return display;

 }
 
 }
 

-wxRect wxDisplay::GetGeometry() const
+// ============================================================================
+// wxDisplayImplMacOSX implementation
+// ============================================================================
+
+wxRect wxDisplayImplMacOSX::GetGeometry() const

 {
 {

-    if (!(m_priv)) return wxRect(0, 0, 0, 0);
-    if (!(m_priv->m_hndl)) return wxRect(0, 0, 0, 0);
-    Rect screenrect = (*(m_priv->m_hndl))->gdRect;
-    return wxRect( screenrect.left, screenrect.top, 
-                   screenrect.right - screenrect.left, screenrect.bottom - screenrect.top);
+    CGRect theRect = CGDisplayBounds(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
+wxRect wxDisplayImplMacOSX::GetClientArea() const

 {
 {

-    if (!(m_priv)) return 0;
-    if (!(m_priv->m_hndl)) return 0;
+    // VZ: I don't know how to get client area for arbitrary display but
+    //     wxGetClientDisplayRect() does work correctly for at least the main
+    //     one (TODO: do it correctly for the other displays too)
+    if ( IsPrimary() )
+        return wxGetClientDisplayRect();

 
 

-    // This cryptic looking code is based on Apple's sample code:
-    // http://developer.apple.com/samplecode/Sample_Code/Graphics_2D/GDevVideo/Gen.cp.htm
-    return ((*(*(m_priv->m_hndl))->gdPMap)->pixelSize) & 0x0000FFFF;
+    return wxDisplayImpl::GetClientArea();

 }
 
 }
 

-wxString wxDisplay::GetName() const
+static int wxCFDictKeyToInt( CFDictionaryRef desc, CFStringRef key )

 {
 {

-    // Macs don't name their displays...
-    return wxEmptyString;
+    CFNumberRef value = (CFNumberRef) CFDictionaryGetValue( desc, key );
+    if (value == NULL)
+        return 0;
+
+    int num = 0;
+    CFNumberGetValue( value, kCFNumberIntType, &num );
+
+    return num;

 }
 
 }
 

- wxArrayVideoModes
-    wxDisplay::GetModes(const wxVideoMode& mode) const
+wxArrayVideoModes wxDisplayImplMacOSX::GetModes(const wxVideoMode& mode) const

 {
 {

-    // Not implemented
-    return wxArrayVideoModes();
+    wxArrayVideoModes resultModes;
+
+    CFArrayRef theArray = CGDisplayAvailableModes( 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 ))
+            resultModes.Add( theMode );
+    }
+
+    return resultModes;

 }
 
 }
 

-wxVideoMode wxDisplay::GetCurrentMode() const
+wxVideoMode wxDisplayImplMacOSX::GetCurrentMode() const

 {
 {

-    // Not implemented
-    return wxVideoMode();
+    CFDictionaryRef theValue = CGDisplayCurrentMode( m_id );
+
+    return wxVideoMode(
+        wxCFDictKeyToInt( theValue, kCGDisplayWidth ),
+        wxCFDictKeyToInt( theValue, kCGDisplayHeight ),
+        wxCFDictKeyToInt( theValue, kCGDisplayBitsPerPixel ),
+        wxCFDictKeyToInt( theValue, kCGDisplayRefreshRate ));

 }
 
 }
 

-bool wxDisplay::ChangeMode(const wxVideoMode& mode)
+bool wxDisplayImplMacOSX::ChangeMode( const wxVideoMode& mode )

 {
 {

-    // Not implemented
-    return false;
+    // Changing to default mode (wxDefaultVideoMode) 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_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_id, theCGMode ) == CGDisplayNoErr;
+
+    return bOK;

 }
 
 }
 

-wxDisplay::~wxDisplay()
+// ============================================================================
+// wxDisplay::CreateFactory()
+// ============================================================================
+
+/* static */ wxDisplayFactory *wxDisplay::CreateFactory()

 {
 {

-    if ( m_priv )
-    {
-        delete m_priv;
-        m_priv = 0;
-    }
+    return new wxDisplayFactoryMacOSX;

 }
 
 #endif // wxUSE_DISPLAY
 }
 
 #endif // wxUSE_DISPLAY