]> git.saurik.com Git - wxWidgets.git/blobdiff - src/msw/display.cpp
preserve type when loaded image is rescaled, #11543
[wxWidgets.git] / src / msw / display.cpp
index 0195c675ffc8cc1ebd0c44f51f0efa01a1d36a7d..d64dc163fb409771f7f14b320f7a9d6cd7b44d8f 100644 (file)
@@ -27,8 +27,9 @@
 
 #if wxUSE_DISPLAY
 
+#include "wx/display.h"
+
 #ifndef WX_PRECOMP
-    #include "wx/msw/missing.h"
     #include "wx/dynarray.h"
     #include "wx/app.h"
     #include "wx/frame.h"
@@ -37,8 +38,9 @@
 #include "wx/dynload.h"
 #include "wx/sysopt.h"
 
-#include "wx/display.h"
 #include "wx/display_impl.h"
+#include "wx/msw/wrapwin.h"
+#include "wx/msw/missing.h"
 
 // define this to use DirectDraw for display mode switching: this is disabled
 // by default because ddraw.h is now always available and also it's not really
      { 0xB3A6F3E0, 0x2B43, 0x11CF, { 0xA2,0xDE,0x00,0xAA,0x00,0xB9,0x33,0x56 } };
 #endif // wxUSE_DIRECTDRAW
 
+// display functions are found in different DLLs under WinCE and normal Win32
+#ifdef __WXWINCE__
+static const wxChar displayDllName[] = wxT("coredll.dll");
+#else
+static const wxChar displayDllName[] = wxT("user32.dll");
+#endif
+
 // ----------------------------------------------------------------------------
 // typedefs for dynamically loaded Windows functions
 // ----------------------------------------------------------------------------
@@ -174,7 +183,7 @@ WX_DEFINE_ARRAY_PTR(wxDisplayInfo *, wxDisplayInfoArray);
 class wxDisplayImplWin32Base : public wxDisplayImpl
 {
 public:
-    wxDisplayImplWin32Base(size_t n, wxDisplayInfo& info)
+    wxDisplayImplWin32Base(unsigned n, wxDisplayInfo& info)
         : wxDisplayImpl(n),
           m_info(info)
     {
@@ -219,9 +228,9 @@ public:
 
     bool IsOk() const { return !m_displays.empty(); }
 
-    virtual size_t GetCount() { return m_displays.size(); }
+    virtual unsigned GetCount() { return unsigned(m_displays.size()); }
     virtual int GetFromPoint(const wxPoint& pt);
-    virtual int GetFromWindow(wxWindow *window);
+    virtual int GetFromWindow(const wxWindow *window);
 
 protected:
     // ctor checks if the current system supports multimon API and dynamically
@@ -247,7 +256,7 @@ protected:
     wxDisplayInfoArray m_displays;
 
 
-    DECLARE_NO_COPY_CLASS(wxDisplayFactoryWin32Base)
+    wxDECLARE_NO_COPY_CLASS(wxDisplayFactoryWin32Base);
 };
 
 // ----------------------------------------------------------------------------
@@ -257,7 +266,7 @@ protected:
 class wxDisplayImplMultimon : public wxDisplayImplWin32Base
 {
 public:
-    wxDisplayImplMultimon(size_t n, wxDisplayInfo& info)
+    wxDisplayImplMultimon(unsigned n, wxDisplayInfo& info)
         : wxDisplayImplWin32Base(n, info)
     {
     }
@@ -266,7 +275,7 @@ public:
     virtual bool ChangeMode(const wxVideoMode& mode);
 
 private:
-    DECLARE_NO_COPY_CLASS(wxDisplayImplMultimon)
+    wxDECLARE_NO_COPY_CLASS(wxDisplayImplMultimon);
 };
 
 class wxDisplayFactoryMultimon : public wxDisplayFactoryWin32Base
@@ -274,7 +283,7 @@ class wxDisplayFactoryMultimon : public wxDisplayFactoryWin32Base
 public:
     wxDisplayFactoryMultimon();
 
-    virtual wxDisplayImpl *CreateDisplay(size_t n);
+    virtual wxDisplayImpl *CreateDisplay(unsigned n);
 
 private:
     // EnumDisplayMonitors() callback
@@ -318,13 +327,13 @@ struct wxDisplayInfoDirectDraw : wxDisplayInfo
     const GUID m_guid;
 
 
-    DECLARE_NO_COPY_CLASS(wxDisplayInfoDirectDraw)
+    wxDECLARE_NO_COPY_CLASS(wxDisplayInfoDirectDraw);
 };
 
 class wxDisplayImplDirectDraw : public wxDisplayImplWin32Base
 {
 public:
-    wxDisplayImplDirectDraw(size_t n, wxDisplayInfo& info, IDirectDraw2 *pDD2)
+    wxDisplayImplDirectDraw(unsigned n, wxDisplayInfo& info, IDirectDraw2 *pDD2)
         : wxDisplayImplWin32Base(n, info),
           m_pDD2(pDD2)
     {
@@ -342,7 +351,7 @@ public:
 private:
     IDirectDraw2 *m_pDD2;
 
-    DECLARE_NO_COPY_CLASS(wxDisplayImplDirectDraw)
+    wxDECLARE_NO_COPY_CLASS(wxDisplayImplDirectDraw);
 };
 
 class wxDisplayFactoryDirectDraw : public wxDisplayFactoryWin32Base
@@ -351,7 +360,7 @@ public:
     wxDisplayFactoryDirectDraw();
     virtual ~wxDisplayFactoryDirectDraw();
 
-    virtual wxDisplayImpl *CreateDisplay(size_t n);
+    virtual wxDisplayImpl *CreateDisplay(unsigned n);
 
 private:
     // callback used with DirectDrawEnumerateEx()
@@ -371,7 +380,7 @@ private:
     // dynamically resolved DirectDrawCreate()
     DirectDrawCreate_t m_pfnDirectDrawCreate;
 
-    DECLARE_NO_COPY_CLASS(wxDisplayFactoryDirectDraw)
+    wxDECLARE_NO_COPY_CLASS(wxDisplayFactoryDirectDraw);
 };
 
 #endif // wxUSE_DIRECTDRAW
@@ -392,7 +401,7 @@ private:
     // system option
 
 #if wxUSE_DIRECTDRAW
-    if ( wxSystemOptions::GetOptionInt(_T("msw.display.directdraw")) )
+    if ( wxSystemOptions::GetOptionInt(wxT("msw.display.directdraw")) )
     {
         wxDisplayFactoryDirectDraw *factoryDD = new wxDisplayFactoryDirectDraw;
         if ( factoryDD->IsOk() )
@@ -424,7 +433,7 @@ void wxDisplayInfo::Initialize()
         WinStruct<MONITORINFOEX> monInfo;
         if ( !gs_GetMonitorInfo(m_hmon, (LPMONITORINFO)&monInfo) )
         {
-            wxLogLastError(_T("GetMonitorInfo"));
+            wxLogLastError(wxT("GetMonitorInfo"));
             m_flags = 0;
             return;
         }
@@ -480,14 +489,16 @@ wxVideoMode wxDisplayImplWin32Base::GetCurrentMode() const
     // according to MSDN.  The version of GetName() we implement for Win95
     // returns an empty string.
     const wxString name = GetName();
-    const wxChar * const deviceName = name.empty() ? NULL : name.c_str();
+    const wxChar * const deviceName = name.empty()
+                                          ? (const wxChar*)NULL
+                                          : (const wxChar*)name.c_str();
 
     DEVMODE dm;
     dm.dmSize = sizeof(dm);
     dm.dmDriverExtra = 0;
     if ( !::EnumDisplaySettings(deviceName, ENUM_CURRENT_SETTINGS, &dm) )
     {
-        wxLogLastError(_T("EnumDisplaySettings(ENUM_CURRENT_SETTINGS)"));
+        wxLogLastError(wxT("EnumDisplaySettings(ENUM_CURRENT_SETTINGS)"));
     }
     else
     {
@@ -509,29 +520,17 @@ wxDisplayFactoryWin32Base::wxDisplayFactoryWin32Base()
     {
         ms_supportsMultimon = 0;
 
-        wxDynamicLibrary dllUser32(_T("user32.dll"));
-
-        wxLogNull noLog;
+        wxDynamicLibrary dllDisplay(displayDllName, wxDL_VERBATIM | wxDL_QUIET);
 
-        gs_MonitorFromPoint = (MonitorFromPoint_t)
-            dllUser32.GetSymbol(wxT("MonitorFromPoint"));
-        if ( !gs_MonitorFromPoint )
-            return;
-
-        gs_MonitorFromWindow = (MonitorFromWindow_t)
-            dllUser32.GetSymbol(wxT("MonitorFromWindow"));
-        if ( !gs_MonitorFromWindow )
-            return;
-
-        gs_GetMonitorInfo = (GetMonitorInfo_t)
-            dllUser32.GetSymbolAorW(wxT("GetMonitorInfo"));
-        if ( !gs_GetMonitorInfo )
+        if ( (wxDL_INIT_FUNC(gs_, MonitorFromPoint, dllDisplay)) == NULL ||
+             (wxDL_INIT_FUNC(gs_, MonitorFromWindow, dllDisplay)) == NULL ||
+             (wxDL_INIT_FUNC_AW(gs_, GetMonitorInfo, dllDisplay)) == NULL )
             return;
 
         ms_supportsMultimon = 1;
 
-        // we can safely let dllUser32 go out of scope, the DLL itself will
-        // still remain loaded as all Win32 programs use it
+        // we can safely let dllDisplay go out of scope, the DLL itself will
+        // still remain loaded as all programs link to it statically anyhow
     }
 }
 
@@ -571,7 +570,7 @@ int wxDisplayFactoryWin32Base::GetFromPoint(const wxPoint& pt)
                                                        MONITOR_DEFAULTTONULL));
 }
 
-int wxDisplayFactoryWin32Base::GetFromWindow(wxWindow *window)
+int wxDisplayFactoryWin32Base::GetFromWindow(const wxWindow *window)
 {
     return FindDisplayFromHMONITOR(gs_MonitorFromWindow(GetHwndOf(window),
                                                         MONITOR_DEFAULTTONULL));
@@ -594,12 +593,8 @@ wxDisplayFactoryMultimon::wxDisplayFactoryMultimon()
     // implementation
     EnumDisplayMonitors_t pfnEnumDisplayMonitors;
     {
-        wxLogNull noLog;
-
-        wxDynamicLibrary dllUser32(_T("user32.dll"));
-        pfnEnumDisplayMonitors = (EnumDisplayMonitors_t)
-            dllUser32.GetSymbol(wxT("EnumDisplayMonitors"));
-        if ( !pfnEnumDisplayMonitors )
+        wxDynamicLibrary dllDisplay(displayDllName, wxDL_VERBATIM | wxDL_QUIET);
+        if ( (wxDL_INIT_FUNC(pfn, EnumDisplayMonitors, dllDisplay)) == NULL )
             return;
     }
 
@@ -647,9 +642,9 @@ void wxDisplayFactoryMultimon::AddDisplay(HMONITOR hMonitor, LPRECT lprcMonitor)
 // wxDisplayFactoryMultimon inherited pure virtuals implementation
 // ----------------------------------------------------------------------------
 
-wxDisplayImpl *wxDisplayFactoryMultimon::CreateDisplay(size_t n)
+wxDisplayImpl *wxDisplayFactoryMultimon::CreateDisplay(unsigned n)
 {
-    wxCHECK_MSG( n < m_displays.size(), NULL, _T("invalid display index") );
+    wxCHECK_MSG( n < m_displays.size(), NULL, wxT("invalid display index") );
 
     return new wxDisplayImplMultimon(n, *(m_displays[n]));
 }
@@ -667,7 +662,9 @@ wxDisplayImplMultimon::GetModes(const wxVideoMode& modeMatch) const
     // according to MSDN.  The version of GetName() we implement for Win95
     // returns an empty string.
     const wxString name = GetName();
-    const wxChar * const deviceName = name.empty() ? NULL : name.c_str();
+    const wxChar * const deviceName = name.empty()
+                                            ? (const wxChar*)NULL
+                                            : (const wxChar*)name.c_str();
 
     DEVMODE dm;
     dm.dmSize = sizeof(dm);
@@ -702,26 +699,26 @@ bool wxDisplayImplMultimon::ChangeMode(const wxVideoMode& mode)
     }
     else // change to the given mode
     {
-        wxCHECK_MSG( mode.w && mode.h, false,
-                        _T("at least the width and height must be specified") );
+        wxCHECK_MSG( mode.GetWidth() && mode.GetHeight(), false,
+                        wxT("at least the width and height must be specified") );
 
         wxZeroMemory(dm);
         dm.dmSize = sizeof(dm);
         dm.dmDriverExtra = 0;
         dm.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT;
-        dm.dmPelsWidth = mode.w;
-        dm.dmPelsHeight = mode.h;
+        dm.dmPelsWidth = mode.GetWidth();
+        dm.dmPelsHeight = mode.GetHeight();
 
-        if ( mode.bpp )
+        if ( mode.GetDepth() )
         {
             dm.dmFields |= DM_BITSPERPEL;
-            dm.dmBitsPerPel = mode.bpp;
+            dm.dmBitsPerPel = mode.GetDepth();
         }
 
-        if ( mode.refresh )
+        if ( mode.GetRefresh() )
         {
             dm.dmFields |= DM_DISPLAYFREQUENCY;
-            dm.dmDisplayFrequency = mode.refresh;
+            dm.dmDisplayFrequency = mode.GetRefresh();
         }
 
         pDevMode = &dm;
@@ -741,13 +738,12 @@ bool wxDisplayImplMultimon::ChangeMode(const wxVideoMode& mode)
     static ChangeDisplaySettingsEx_t pfnChangeDisplaySettingsEx = NULL;
     if ( !pfnChangeDisplaySettingsEx )
     {
-        wxDynamicLibrary dllUser32(_T("user32.dll"));
-        if ( dllUser32.IsLoaded() )
+        wxDynamicLibrary dllDisplay(displayDllName, wxDL_VERBATIM | wxDL_QUIET);
+        if ( dllDisplay.IsLoaded() )
         {
-            pfnChangeDisplaySettingsEx = (ChangeDisplaySettingsEx_t)
-                dllUser32.GetSymbolAorW(_T("ChangeDisplaySettingsEx"));
+            wxDL_INIT_FUNC_AW(pfn, ChangeDisplaySettingsEx, dllDisplay);
         }
-        //else: huh, no user32.dll??
+        //else: huh, no this DLL must always be present, what's going on??
 
 #ifndef __WXWINCE__
         if ( !pfnChangeDisplaySettingsEx )
@@ -762,11 +758,11 @@ bool wxDisplayImplMultimon::ChangeMode(const wxVideoMode& mode)
     // do change the mode
     switch ( pfnChangeDisplaySettingsEx
              (
-                GetName(),      // display name
-                pDevMode,       // dev mode or NULL to reset
-                NULL,           // reserved
+                GetName().wx_str(), // display name
+                pDevMode,           // dev mode or NULL to reset
+                NULL,               // reserved
                 flags,
-                NULL            // pointer to video parameters (not used)
+                NULL                // pointer to video parameters (not used)
              ) )
     {
         case DISP_CHANGE_SUCCESSFUL:
@@ -780,7 +776,7 @@ bool wxDisplayImplMultimon::ChangeMode(const wxVideoMode& mode)
                 if (frameTop && frameTop->IsFullScreen())
                 {
                     wxVideoMode current = GetCurrentMode();
-                    frameTop->SetClientSize(current.w, current.h);
+                    frameTop->SetClientSize(current.GetWidth(), current.GetHeight());
                 }
             }
             return true;
@@ -790,7 +786,7 @@ bool wxDisplayImplMultimon::ChangeMode(const wxVideoMode& mode)
             break;
 
         default:
-            wxFAIL_MSG( _T("unexpected ChangeDisplaySettingsEx() return value") );
+            wxFAIL_MSG( wxT("unexpected ChangeDisplaySettingsEx() return value") );
     }
 
     return false;
@@ -812,34 +808,26 @@ wxDisplayFactoryDirectDraw::wxDisplayFactoryDirectDraw()
     if ( !ms_supportsMultimon )
         return;
 
-#if wxUSE_LOG
-    // suppress the errors if ddraw.dll is not found, we're prepared to handle
-    // this
-    wxLogNull noLog;
-#endif
-
-    m_dllDDraw.Load(_T("ddraw.dll"));
+    m_dllDDraw.Load(wxT("ddraw.dll"), wxDL_VERBATIM | wxDL_QUIET);
 
     if ( !m_dllDDraw.IsLoaded() )
         return;
 
-    DirectDrawEnumerateEx_t pDDEnumEx = (DirectDrawEnumerateEx_t)
-        m_dllDDraw.GetSymbolAorW(_T("DirectDrawEnumerateEx"));
-    if ( !pDDEnumEx )
+    DirectDrawEnumerateEx_t
+        wxDL_INIT_FUNC_AW(pfn, DirectDrawEnumerateEx, m_dllDDraw);
+    if ( !pfnDirectDrawEnumerateEx )
         return;
 
     // we can't continue without DirectDrawCreate() later, so resolve it right
     // now and fail the initialization if it's not available
-    m_pfnDirectDrawCreate = (DirectDrawCreate_t)
-        m_dllDDraw.GetSymbol(_T("DirectDrawCreate"));
-    if ( !m_pfnDirectDrawCreate )
+    if ( !wxDL_INIT_FUNC(m_pfn, DirectDrawCreate, m_dllDDraw) )
         return;
 
-    if ( (*pDDEnumEx)(DDEnumExCallback,
-                      this,
-                      DDENUM_ATTACHEDSECONDARYDEVICES) != DD_OK )
+    if ( (*pfnDirectDrawEnumerateEx)(DDEnumExCallback,
+                                     this,
+                                     DDENUM_ATTACHEDSECONDARYDEVICES) != DD_OK )
     {
-        wxLogLastError(_T("DirectDrawEnumerateEx"));
+        wxLogLastError(wxT("DirectDrawEnumerateEx"));
     }
 }
 
@@ -864,7 +852,7 @@ wxDisplayFactoryDirectDraw::DDEnumExCallback(GUID *pGuid,
     if ( pGuid )
     {
         wxDisplayFactoryDirectDraw * self =
-            wx_static_cast(wxDisplayFactoryDirectDraw *, lpContext);
+            static_cast<wxDisplayFactoryDirectDraw *>(lpContext);
         self->AddDisplay(*pGuid, hmon, driverName);
     }
     //else: we're called for the primary monitor, skip it
@@ -888,12 +876,12 @@ void wxDisplayFactoryDirectDraw::AddDisplay(const GUID& guid,
 // wxDisplayFactoryDirectDraw inherited pure virtuals implementation
 // ----------------------------------------------------------------------------
 
-wxDisplayImpl *wxDisplayFactoryDirectDraw::CreateDisplay(size_t n)
+wxDisplayImpl *wxDisplayFactoryDirectDraw::CreateDisplay(unsigned n)
 {
-    wxCHECK_MSG( n < m_displays.size(), NULL, _T("invalid display index") );
+    wxCHECK_MSG( n < m_displays.size(), NULL, wxT("invalid display index") );
 
     wxDisplayInfoDirectDraw *
-        info = wx_static_cast(wxDisplayInfoDirectDraw *, m_displays[n]);
+        info = static_cast<wxDisplayInfoDirectDraw *>(m_displays[n]);
 
     if ( !info->m_pDD2 )
     {
@@ -904,7 +892,7 @@ wxDisplayImpl *wxDisplayFactoryDirectDraw::CreateDisplay(size_t n)
         if ( FAILED(hr) || !pDD )
         {
             // what to do??
-            wxLogApiError(_T("DirectDrawCreate"), hr);
+            wxLogApiError(wxT("DirectDrawCreate"), hr);
             return NULL;
         }
 
@@ -914,7 +902,7 @@ wxDisplayImpl *wxDisplayFactoryDirectDraw::CreateDisplay(size_t n)
 
         if ( FAILED(hr) || !info->m_pDD2 )
         {
-            wxLogApiError(_T("IDirectDraw::QueryInterface(IDD2)"), hr);
+            wxLogApiError(wxT("IDirectDraw::QueryInterface(IDD2)"), hr);
             return NULL;
         }
 
@@ -956,7 +944,7 @@ private:
     wxArrayVideoModes& m_modes;
     const wxVideoMode& m_modeMatch;
 
-    DECLARE_NO_COPY_CLASS(wxDDVideoModesAdder)
+    wxDECLARE_NO_COPY_CLASS(wxDDVideoModesAdder);
 };
 
 HRESULT WINAPI wxDDEnumModesCallback(LPDDSURFACEDESC lpDDSurfaceDesc,
@@ -967,7 +955,7 @@ HRESULT WINAPI wxDDEnumModesCallback(LPDDSURFACEDESC lpDDSurfaceDesc,
     if ( (lpDDSurfaceDesc->dwFlags & FLAGS_REQUIRED) == FLAGS_REQUIRED )
     {
         wxDDVideoModesAdder * const vmodes =
-            wx_static_cast(wxDDVideoModesAdder *, lpContext);
+            static_cast<wxDDVideoModesAdder *>(lpContext);
 
         vmodes->Add(wxVideoMode(lpDDSurfaceDesc->dwWidth,
                                 lpDDSurfaceDesc->dwHeight,
@@ -995,7 +983,7 @@ wxDisplayImplDirectDraw::GetModes(const wxVideoMode& modeMatch) const
 
     if ( FAILED(hr) )
     {
-        wxLogApiError(_T("IDirectDraw::EnumDisplayModes"), hr);
+        wxLogApiError(wxT("IDirectDraw::EnumDisplayModes"), hr);
     }
 
     return modes;
@@ -1008,7 +996,7 @@ wxDisplayImplDirectDraw::GetModes(const wxVideoMode& modeMatch) const
 bool wxDisplayImplDirectDraw::ChangeMode(const wxVideoMode& mode)
 {
     wxWindow *winTop = wxTheApp->GetTopWindow();
-    wxCHECK_MSG( winTop, false, _T("top level window required for DirectX") );
+    wxCHECK_MSG( winTop, false, wxT("top level window required for DirectX") );
 
     HRESULT hr = m_pDD2->SetCooperativeLevel
                          (
@@ -1017,7 +1005,7 @@ bool wxDisplayImplDirectDraw::ChangeMode(const wxVideoMode& mode)
                          );
     if ( FAILED(hr) )
     {
-        wxLogApiError(_T("IDirectDraw2::SetCooperativeLevel"), hr);
+        wxLogApiError(wxT("IDirectDraw2::SetCooperativeLevel"), hr);
 
         return false;
     }
@@ -1025,7 +1013,7 @@ bool wxDisplayImplDirectDraw::ChangeMode(const wxVideoMode& mode)
     hr = m_pDD2->SetDisplayMode(mode.w, mode.h, mode.bpp, mode.refresh, 0);
     if ( FAILED(hr) )
     {
-        wxLogApiError(_T("IDirectDraw2::SetDisplayMode"), hr);
+        wxLogApiError(wxT("IDirectDraw2::SetDisplayMode"), hr);
 
         return false;
     }