#include "wx/msw/wrapwin.h"
#include "wx/msw/missing.h"
#include "wx/msw/private.h"
+#include "wx/msw/private/hiddenwin.h"
#ifndef __WXWINCE__
// Older versions of windef.h don't define HMONITOR. Unfortunately, we
}
#endif // !__WXWINCE__
-// ----------------------------------------------------------------------------
-// display information classes
-// ----------------------------------------------------------------------------
-
-struct wxDisplayInfo
-{
- wxDisplayInfo(HMONITOR hmon = NULL)
- {
- m_hmon = hmon;
- m_flags = (DWORD)-1;
- }
-
- virtual ~wxDisplayInfo() { }
-
-
- // use GetMonitorInfo() to fill in all of our fields if needed (i.e. if it
- // hadn't been done before)
- void Initialize();
-
-
- // handle of this monitor used by MonitorXXX() functions, never NULL
- HMONITOR m_hmon;
-
- // the entire area of this monitor in virtual screen coordinates
- wxRect m_rect;
-
- // the work or client area, i.e. the area available for the normal windows
- wxRect m_rectClient;
-
- // the display device name for this monitor, empty initially and retrieved
- // on demand by DoGetName()
- wxString m_devName;
-
- // the flags of this monitor, also used as initialization marker: if this
- // is -1, GetMonitorInfo() hadn't been called yet
- DWORD m_flags;
-};
-
-WX_DEFINE_ARRAY_PTR(wxDisplayInfo *, wxDisplayInfoArray);
// ----------------------------------------------------------------------------
-// common base class for all Win32 wxDisplayImpl versions
+// wxDisplayMSW declaration
// ----------------------------------------------------------------------------
-class wxDisplayImplWin32Base : public wxDisplayImpl
+class wxDisplayMSW : public wxDisplayImpl
{
public:
- wxDisplayImplWin32Base(unsigned n, wxDisplayInfo& info)
+ wxDisplayMSW(unsigned n, HMONITOR hmon)
: wxDisplayImpl(n),
- m_info(info)
+ m_hmon(hmon)
{
}
virtual bool IsPrimary() const;
virtual wxVideoMode GetCurrentMode() const;
+ virtual wxArrayVideoModes GetModes(const wxVideoMode& mode) const;
+ virtual bool ChangeMode(const wxVideoMode& mode);
protected:
// convert a DEVMODE to our wxVideoMode
dm.dmDisplayFrequency > 1 ? dm.dmDisplayFrequency : 0);
}
- wxDisplayInfo& m_info;
+ // Call GetMonitorInfo() and fill in the provided struct and return true if
+ // it succeeded, otherwise return false.
+ bool GetMonInfo(MONITORINFOEX& monInfo) const;
+
+ HMONITOR m_hmon;
+
+private:
+ wxDECLARE_NO_COPY_CLASS(wxDisplayMSW);
};
+
// ----------------------------------------------------------------------------
-// common base class for all Win32 wxDisplayFactory versions
+// wxDisplayFactoryMSW declaration
// ----------------------------------------------------------------------------
-// functions dynamically bound by wxDisplayFactoryWin32Base::Initialize()
+WX_DEFINE_ARRAY(HMONITOR, wxMonitorHandleArray);
+
+// functions dynamically bound by wxDisplayFactoryMSW ctor.
static MonitorFromPoint_t gs_MonitorFromPoint = NULL;
static MonitorFromWindow_t gs_MonitorFromWindow = NULL;
static GetMonitorInfo_t gs_GetMonitorInfo = NULL;
+static EnumDisplayMonitors_t gs_EnumDisplayMonitors = NULL;
-class wxDisplayFactoryWin32Base : public wxDisplayFactory
+class wxDisplayFactoryMSW : public wxDisplayFactory
{
public:
- virtual ~wxDisplayFactoryWin32Base();
+ // ctor checks if the current system supports multimon API and dynamically
+ // bind the functions we need if this is the case and fills the
+ // m_displays array if they're available
+ wxDisplayFactoryMSW();
+
+ // Dtor destroys the hidden window we use for getting WM_SETTINGCHANGE.
+ virtual ~wxDisplayFactoryMSW();
bool IsOk() const { return !m_displays.empty(); }
+ virtual wxDisplayImpl *CreateDisplay(unsigned n);
virtual unsigned GetCount() { return unsigned(m_displays.size()); }
virtual int GetFromPoint(const wxPoint& pt);
virtual int GetFromWindow(const wxWindow *window);
-protected:
- // ctor checks if the current system supports multimon API and dynamically
- // bind the functions we need if this is the case and sets
- // ms_supportsMultimon if they're available
- wxDisplayFactoryWin32Base();
+ // Called when we receive WM_SETTINGCHANGE to refresh the list of monitor
+ // handles.
+ static void RefreshMonitors() { ms_factory->DoRefreshMonitors(); }
- // delete all m_displays elements: can be called from the derived class
- // dtor if it is important to do this before destroying it,
- // otherwise will be done by our dtor
- void Clear();
-
- // find the monitor corresponding to the given handle, return wxNOT_FOUND
- // if not found
- int FindDisplayFromHMONITOR(HMONITOR hmon) const;
+private:
+ // EnumDisplayMonitors() callback
+ static BOOL CALLBACK MultimonEnumProc(HMONITOR hMonitor,
+ HDC hdcMonitor,
+ LPRECT lprcMonitor,
+ LPARAM dwData);
- // flag indicating whether gs_MonitorXXX functions are available
- static int ms_supportsMultimon;
-
- // the array containing information about all available displays, should be
- // filled by the derived class ctors
- wxDisplayInfoArray m_displays;
-
-
- wxDECLARE_NO_COPY_CLASS(wxDisplayFactoryWin32Base);
-};
-
-// ----------------------------------------------------------------------------
-// wxDisplay implementation using Windows multi-monitor support functions
-// ----------------------------------------------------------------------------
+ // find the monitor corresponding to the given handle,
+ // return wxNOT_FOUND if not found
+ int FindDisplayFromHMONITOR(HMONITOR hmon) const;
-class wxDisplayImplMultimon : public wxDisplayImplWin32Base
-{
-public:
- wxDisplayImplMultimon(unsigned n, wxDisplayInfo& info)
- : wxDisplayImplWin32Base(n, info)
- {
- }
+ // Update m_displays array, used by RefreshMonitors().
+ void DoRefreshMonitors();
- virtual wxArrayVideoModes GetModes(const wxVideoMode& mode) const;
- virtual bool ChangeMode(const wxVideoMode& mode);
-private:
- wxDECLARE_NO_COPY_CLASS(wxDisplayImplMultimon);
-};
+ // The unique factory being used (as we don't have direct access to the
+ // global factory pointer in the common code so we just duplicate this
+ // variable (also making it of correct type for us) here).
+ static wxDisplayFactoryMSW* ms_factory;
-class wxDisplayFactoryMultimon : public wxDisplayFactoryWin32Base
-{
-public:
- wxDisplayFactoryMultimon();
- virtual wxDisplayImpl *CreateDisplay(unsigned n);
+ // the array containing information about all available displays, filled by
+ // MultimonEnumProc()
+ wxMonitorHandleArray m_displays;
-private:
- // EnumDisplayMonitors() callback
- static BOOL CALLBACK MultimonEnumProc(HMONITOR hMonitor,
- HDC hdcMonitor,
- LPRECT lprcMonitor,
- LPARAM dwData);
+ // The hidden window we use for receiving WM_SETTINGCHANGE and its class
+ // name.
+ HWND m_hiddenHwnd;
+ const wxChar* m_hiddenClass;
- // add a monitor description to m_displays array
- void AddDisplay(HMONITOR hMonitor, LPRECT lprcMonitor);
+ wxDECLARE_NO_COPY_CLASS(wxDisplayFactoryMSW);
};
-
-// ============================================================================
-// common classes implementation
-// ============================================================================
+wxDisplayFactoryMSW* wxDisplayFactoryMSW::ms_factory = NULL;
// ----------------------------------------------------------------------------
-// wxDisplay
+// wxDisplay implementation
// ----------------------------------------------------------------------------
/* static */ wxDisplayFactory *wxDisplay::CreateFactory()
{
- wxDisplayFactoryMultimon *factoryMM = new wxDisplayFactoryMultimon;
+ wxDisplayFactoryMSW *factoryMM = new wxDisplayFactoryMSW;
if ( factoryMM->IsOk() )
return factoryMM;
delete factoryMM;
- // finally fall back to a stub implementation if all else failed (Win95?)
+ // fall back to a stub implementation if no multimon support (Win95?)
return new wxDisplayFactorySingle;
}
// ----------------------------------------------------------------------------
-// wxDisplayInfo
+// wxDisplayMSW implementation
// ----------------------------------------------------------------------------
-void wxDisplayInfo::Initialize()
+bool wxDisplayMSW::GetMonInfo(MONITORINFOEX& monInfo) const
{
- if ( m_flags == (DWORD)-1 )
+ if ( !gs_GetMonitorInfo(m_hmon, &monInfo) )
{
- WinStruct<MONITORINFOEX> monInfo;
- if ( !gs_GetMonitorInfo(m_hmon, (LPMONITORINFO)&monInfo) )
- {
- wxLogLastError(wxT("GetMonitorInfo"));
- m_flags = 0;
- return;
- }
-
- wxCopyRECTToRect(monInfo.rcMonitor, m_rect);
- wxCopyRECTToRect(monInfo.rcWork, m_rectClient);
- m_devName = monInfo.szDevice;
- m_flags = monInfo.dwFlags;
+ wxLogLastError(wxT("GetMonitorInfo"));
+ return false;
}
-}
-// ----------------------------------------------------------------------------
-// wxDisplayImplWin32Base
-// ----------------------------------------------------------------------------
+ return true;
+}
-wxRect wxDisplayImplWin32Base::GetGeometry() const
+wxRect wxDisplayMSW::GetGeometry() const
{
- if ( m_info.m_rect.IsEmpty() )
- m_info.Initialize();
+ WinStruct<MONITORINFOEX> monInfo;
+
+ wxRect rect;
+ if ( GetMonInfo(monInfo) )
+ wxCopyRECTToRect(monInfo.rcMonitor, rect);
- return m_info.m_rect;
+ return rect;
}
-wxRect wxDisplayImplWin32Base::GetClientArea() const
+wxRect wxDisplayMSW::GetClientArea() const
{
- if ( m_info.m_rectClient.IsEmpty() )
- m_info.Initialize();
+ WinStruct<MONITORINFOEX> monInfo;
- return m_info.m_rectClient;
+ wxRect rectClient;
+ if ( GetMonInfo(monInfo) )
+ wxCopyRECTToRect(monInfo.rcWork, rectClient);
+
+ return rectClient;
}
-wxString wxDisplayImplWin32Base::GetName() const
+wxString wxDisplayMSW::GetName() const
{
- if ( m_info.m_devName.empty() )
- m_info.Initialize();
+ WinStruct<MONITORINFOEX> monInfo;
+
+ wxString name;
+ if ( GetMonInfo(monInfo) )
+ name = monInfo.szDevice;
- return m_info.m_devName;
+ return name;
}
-bool wxDisplayImplWin32Base::IsPrimary() const
+bool wxDisplayMSW::IsPrimary() const
{
- if ( m_info.m_flags == (DWORD)-1 )
- m_info.Initialize();
+ WinStruct<MONITORINFOEX> monInfo;
- return (m_info.m_flags & MONITORINFOF_PRIMARY) != 0;
+ if ( !GetMonInfo(monInfo) )
+ return false;
+
+ return (monInfo.dwFlags & MONITORINFOF_PRIMARY) != 0;
}
-wxVideoMode wxDisplayImplWin32Base::GetCurrentMode() const
+wxVideoMode wxDisplayMSW::GetCurrentMode() const
{
wxVideoMode mode;
DEVMODE dm;
dm.dmSize = sizeof(dm);
dm.dmDriverExtra = 0;
+
if ( !::EnumDisplaySettings(deviceName, ENUM_CURRENT_SETTINGS, &dm) )
{
wxLogLastError(wxT("EnumDisplaySettings(ENUM_CURRENT_SETTINGS)"));
return mode;
}
-// ----------------------------------------------------------------------------
-// wxDisplayFactoryWin32Base
-// ----------------------------------------------------------------------------
-
-int wxDisplayFactoryWin32Base::ms_supportsMultimon = -1;
-
-wxDisplayFactoryWin32Base::wxDisplayFactoryWin32Base()
-{
- if ( ms_supportsMultimon == -1 )
- {
- ms_supportsMultimon = 0;
-
- wxDynamicLibrary dllDisplay(displayDllName, wxDL_VERBATIM | wxDL_QUIET);
-
- 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 dllDisplay go out of scope, the DLL itself will
- // still remain loaded as all programs link to it statically anyhow
- }
-}
-
-void wxDisplayFactoryWin32Base::Clear()
-{
- WX_CLEAR_ARRAY(m_displays);
-}
-
-wxDisplayFactoryWin32Base::~wxDisplayFactoryWin32Base()
-{
- Clear();
-}
-
-// helper for GetFromPoint() and GetFromWindow()
-int wxDisplayFactoryWin32Base::FindDisplayFromHMONITOR(HMONITOR hmon) const
-{
- if ( hmon )
- {
- const size_t count = m_displays.size();
- for ( size_t n = 0; n < count; n++ )
- {
- if ( hmon == m_displays[n]->m_hmon )
- return n;
- }
- }
-
- return wxNOT_FOUND;
-}
-
-int wxDisplayFactoryWin32Base::GetFromPoint(const wxPoint& pt)
-{
- POINT pt2;
- pt2.x = pt.x;
- pt2.y = pt.y;
-
- return FindDisplayFromHMONITOR(gs_MonitorFromPoint(pt2,
- MONITOR_DEFAULTTONULL));
-}
-
-int wxDisplayFactoryWin32Base::GetFromWindow(const wxWindow *window)
-{
- return FindDisplayFromHMONITOR(gs_MonitorFromWindow(GetHwndOf(window),
- MONITOR_DEFAULTTONULL));
-}
-
-// ============================================================================
-// wxDisplay implementation using Win32 multimon API
-// ============================================================================
-
-// ----------------------------------------------------------------------------
-// wxDisplayFactoryMultimon initialization
-// ----------------------------------------------------------------------------
-
-wxDisplayFactoryMultimon::wxDisplayFactoryMultimon()
-{
- if ( !ms_supportsMultimon )
- return;
-
- // look up EnumDisplayMonitors()
- EnumDisplayMonitors_t pfnEnumDisplayMonitors;
- {
- wxDynamicLibrary dllDisplay(displayDllName, wxDL_VERBATIM | wxDL_QUIET);
- if ( (wxDL_INIT_FUNC(pfn, EnumDisplayMonitors, dllDisplay)) == NULL )
- return;
- }
-
- // enumerate all displays
- if ( !pfnEnumDisplayMonitors(NULL, NULL, MultimonEnumProc, (LPARAM)this) )
- {
- wxLogLastError(wxT("EnumDisplayMonitors"));
- }
-}
-
-/* static */
-BOOL CALLBACK
-wxDisplayFactoryMultimon::MultimonEnumProc(
- HMONITOR hMonitor, // handle to display monitor
- HDC WXUNUSED(hdcMonitor), // handle to monitor-appropriate device context
- LPRECT lprcMonitor, // pointer to monitor intersection rectangle
- LPARAM dwData // data passed from EnumDisplayMonitors (this)
-)
-{
- wxDisplayFactoryMultimon *const self = (wxDisplayFactoryMultimon *)dwData;
- self->AddDisplay(hMonitor, lprcMonitor);
-
- // continue the enumeration
- return TRUE;
-}
-
-// ----------------------------------------------------------------------------
-// wxDisplayFactoryMultimon helper functions
-// ----------------------------------------------------------------------------
-
-void wxDisplayFactoryMultimon::AddDisplay(HMONITOR hMonitor, LPRECT lprcMonitor)
-{
- wxDisplayInfo *info = new wxDisplayInfo(hMonitor);
-
- // we also store the display geometry
- info->m_rect = wxRect(lprcMonitor->left, lprcMonitor->top,
- lprcMonitor->right - lprcMonitor->left,
- lprcMonitor->bottom - lprcMonitor->top);
-
- // now add this monitor to the array
- m_displays.Add(info);
-}
-
-// ----------------------------------------------------------------------------
-// wxDisplayFactoryMultimon inherited pure virtuals implementation
-// ----------------------------------------------------------------------------
-
-wxDisplayImpl *wxDisplayFactoryMultimon::CreateDisplay(unsigned n)
-{
- wxCHECK_MSG( n < m_displays.size(), NULL, wxT("invalid display index") );
-
- return new wxDisplayImplMultimon(n, *(m_displays[n]));
-}
-
-// ----------------------------------------------------------------------------
-// wxDisplayImplMultimon implementation
-// ----------------------------------------------------------------------------
-
-wxArrayVideoModes
-wxDisplayImplMultimon::GetModes(const wxVideoMode& modeMatch) const
+wxArrayVideoModes wxDisplayMSW::GetModes(const wxVideoMode& modeMatch) const
{
wxArrayVideoModes modes;
DEVMODE dm;
dm.dmSize = sizeof(dm);
dm.dmDriverExtra = 0;
+
for ( int iModeNum = 0;
::EnumDisplaySettings(deviceName, iModeNum, &dm);
iModeNum++ )
return modes;
}
-bool wxDisplayImplMultimon::ChangeMode(const wxVideoMode& mode)
+bool wxDisplayMSW::ChangeMode(const wxVideoMode& mode)
{
// prepare ChangeDisplaySettingsEx() parameters
DEVMODE dm;
// ok
{
// If we have a top-level, full-screen frame, emulate
- // the DirectX behavior and resize it. This makes this
+ // the DirectX behaviour and resize it. This makes this
// API quite a bit easier to use.
wxWindow *winTop = wxTheApp->GetTopWindow();
wxFrame *frameTop = wxDynamicCast(winTop, wxFrame);
return false;
}
+
+// ----------------------------------------------------------------------------
+// wxDisplayFactoryMSW implementation
+// ----------------------------------------------------------------------------
+
+LRESULT APIENTRY
+wxDisplayWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
+{
+ if ( msg == WM_SETTINGCHANGE )
+ {
+ wxDisplayFactoryMSW::RefreshMonitors();
+
+ return 0;
+ }
+
+ return ::DefWindowProc(hwnd, msg, wParam, lParam);
+}
+
+wxDisplayFactoryMSW::wxDisplayFactoryMSW()
+{
+ // This is not supposed to happen with the current code, the factory is
+ // implicitly a singleton.
+ wxASSERT_MSG( !ms_factory, wxS("Using more than one factory?") );
+
+ ms_factory = this;
+
+ m_hiddenHwnd = NULL;
+ m_hiddenClass = NULL;
+
+ if ( gs_MonitorFromPoint==NULL || gs_MonitorFromWindow==NULL
+ || gs_GetMonitorInfo==NULL || gs_EnumDisplayMonitors==NULL )
+ {
+ // First initialization, or last initialization failed.
+ wxDynamicLibrary dllDisplay(displayDllName, wxDL_VERBATIM | wxDL_QUIET);
+
+ wxDL_INIT_FUNC(gs_, MonitorFromPoint, dllDisplay);
+ wxDL_INIT_FUNC(gs_, MonitorFromWindow, dllDisplay);
+ wxDL_INIT_FUNC_AW(gs_, GetMonitorInfo, dllDisplay);
+ wxDL_INIT_FUNC(gs_, EnumDisplayMonitors, dllDisplay);
+
+ // we can safely let dllDisplay go out of scope, the DLL itself will
+ // still remain loaded as all programs link to it statically anyhow
+ }
+
+ if ( gs_MonitorFromPoint==NULL || gs_MonitorFromWindow==NULL
+ || gs_GetMonitorInfo==NULL || gs_EnumDisplayMonitors==NULL )
+ return;
+
+ DoRefreshMonitors();
+
+ // Also create a hidden window to listen for WM_SETTINGCHANGE that we
+ // receive when a monitor is added to or removed from the system as we must
+ // refresh our monitor handles information then.
+ m_hiddenHwnd = wxCreateHiddenWindow
+ (
+ &m_hiddenClass,
+ wxT("wxDisplayHiddenWindow"),
+ wxDisplayWndProc
+ );
+}
+
+wxDisplayFactoryMSW::~wxDisplayFactoryMSW()
+{
+ if ( m_hiddenHwnd )
+ {
+ if ( !::DestroyWindow(m_hiddenHwnd) )
+ {
+ wxLogLastError(wxT("DestroyWindow(wxDisplayHiddenWindow)"));
+ }
+
+ if ( m_hiddenClass )
+ {
+ if ( !::UnregisterClass(m_hiddenClass, wxGetInstance()) )
+ {
+ wxLogLastError(wxT("UnregisterClass(wxDisplayHiddenWindow)"));
+ }
+ }
+ }
+
+ ms_factory = NULL;
+}
+
+void wxDisplayFactoryMSW::DoRefreshMonitors()
+{
+ m_displays.Clear();
+
+ if ( !gs_EnumDisplayMonitors(NULL, NULL, MultimonEnumProc, (LPARAM)this) )
+ {
+ wxLogLastError(wxT("EnumDisplayMonitors"));
+ }
+}
+
+/* static */
+BOOL CALLBACK
+wxDisplayFactoryMSW::MultimonEnumProc(
+ HMONITOR hMonitor, // handle to display monitor
+ HDC WXUNUSED(hdcMonitor), // handle to monitor-appropriate device context
+ LPRECT WXUNUSED(lprcMonitor), // pointer to monitor intersection rectangle
+ LPARAM dwData) // data passed from EnumDisplayMonitors (this)
+{
+ wxDisplayFactoryMSW *const self = (wxDisplayFactoryMSW *)dwData;
+
+ self->m_displays.Add(hMonitor);
+
+ // continue the enumeration
+ return TRUE;
+}
+
+wxDisplayImpl *wxDisplayFactoryMSW::CreateDisplay(unsigned n)
+{
+ wxCHECK_MSG( n < m_displays.size(), NULL, wxT("An invalid index was passed to wxDisplay") );
+
+ return new wxDisplayMSW(n, m_displays[n]);
+}
+
+// helper for GetFromPoint() and GetFromWindow()
+int wxDisplayFactoryMSW::FindDisplayFromHMONITOR(HMONITOR hmon) const
+{
+ if ( hmon )
+ {
+ const size_t count = m_displays.size();
+ for ( size_t n = 0; n < count; n++ )
+ {
+ if ( hmon == m_displays[n] )
+ return n;
+ }
+ }
+
+ return wxNOT_FOUND;
+}
+
+int wxDisplayFactoryMSW::GetFromPoint(const wxPoint& pt)
+{
+ POINT pt2;
+ pt2.x = pt.x;
+ pt2.y = pt.y;
+
+ return FindDisplayFromHMONITOR(gs_MonitorFromPoint(pt2,
+ MONITOR_DEFAULTTONULL));
+}
+
+int wxDisplayFactoryMSW::GetFromWindow(const wxWindow *window)
+{
+ return FindDisplayFromHMONITOR(gs_MonitorFromWindow(GetHwndOf(window),
+ MONITOR_DEFAULTTONULL));
+}
+
#endif // wxUSE_DISPLAY
projects / wxWidgets.git / blobdiff