+/////////////////////////////////////////////////////////////////////////////
+// Name: display.cpp
+// Purpose: MSW Implementation of wxDisplay class
+// Author: Royce Mitchell III
+// Modified by:
+// Created: 06/21/02
+// RCS-ID: $Id$
+// Copyright: (c) wxWindows team
+// Licence: wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+// ===========================================================================
+// declarations
+// ===========================================================================
+
+// ---------------------------------------------------------------------------
+// headers
+// ---------------------------------------------------------------------------
+
+#ifdef __GNUG__
+ #pragma implementation "display.h"
+#endif
+
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+ #pragma hdrstop
+#endif
+
+#if wxUSE_DISPLAY
+
+#ifndef WX_PRECOMP
+ #include "wx/dynarray.h"
+#endif
+
+#include "wx/display.h"
+
+// the following define is necessary to access the multi-monitor function
+// declarations in a manner safe to use w/ Windows 95
+// JACS: not used for now until we're clear about the legality
+// of distributing multimon.h. Meanwhile you can download the file
+// yourself from:
+// http://www.microsoft.com/msj/0697/monitor/monitortextfigs.htm#fig4
+
+#if 0
+#define COMPILE_MULTIMON_STUBS
+#include "wx/msw/multimon.h"
+#endif
+
+// ---------------------------------------------------------------------------
+// constants
+// ---------------------------------------------------------------------------
+
+// ---------------------------------------------------------------------------
+// private functions
+// ---------------------------------------------------------------------------
+
+void wxmswInitDisplayRectArray();
+
+// ----------------------------------------------------------------------------
+// private classes
+// ----------------------------------------------------------------------------
+
+class wxmswDisplayInfo;
+
+WX_DECLARE_OBJARRAY(wxmswDisplayInfo, wxmswDisplayInfoArray);
+
+class wxmswDisplayInfo
+{
+public:
+ HMONITOR m_hmon;
+ DISPLAY_DEVICE m_dd;
+ wxRect m_rect;
+ int m_depth;
+};
+
+wxmswDisplayInfoArray* g_wxmswDisplayInfoArray = 0;
+
+#include <wx/arrimpl.cpp> // this is a magic incantation which must be done!
+WX_DEFINE_OBJARRAY(wxmswDisplayInfoArray);
+
+// ===========================================================================
+// implementation
+// ===========================================================================
+
+BOOL CALLBACK wxmswMonitorEnumProc (
+ HMONITOR hMonitor, // handle to display monitor
+ HDC hdcMonitor, // handle to monitor-appropriate device context
+ LPRECT lprcMonitor, // pointer to monitor intersection rectangle
+ LPARAM dwData // data passed from EnumDisplayMonitors
+)
+{
+ wxmswDisplayInfo* info = new wxmswDisplayInfo();
+ info->m_hmon = hMonitor;
+ info->m_rect.SetX ( lprcMonitor->left );
+ info->m_rect.SetY ( lprcMonitor->top );
+ info->m_rect.SetWidth ( lprcMonitor->right - lprcMonitor->left );
+ info->m_rect.SetHeight ( lprcMonitor->bottom - lprcMonitor->top );
+ // now add this monitor to the array
+ g_wxmswDisplayInfoArray->Add ( info );
+
+ return TRUE; // continue the enumeration
+}
+
+class wxmswDisplayModule : public wxModule
+{
+ DECLARE_DYNAMIC_CLASS(wxmswDisplayModule)
+public:
+ wxmswDisplayModule() {}
+ bool OnInit();
+ void OnExit();
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxmswDisplayModule, wxModule)
+
+bool wxmswDisplayModule::OnInit()
+{
+ g_wxmswDisplayInfoArray = new wxmswDisplayInfoArray();
+ if ( !g_wxmswDisplayInfoArray )
+ {
+ wxFAIL_MSG(wxT("Couldn't allocate array for display information"));
+ return FALSE;
+ }
+
+ // Royce3: I'm assuming that the monitor's are enumerated in the same
+ // order as the calls to EnumDisplayDevices below. We shall soon see
+ // if that assumption is correct.
+ if ( !EnumDisplayMonitors ( NULL, NULL, wxmswMonitorEnumProc, 0 ) )
+ wxLogLastError(wxT("EnumDisplayMonitors"));
+
+ size_t iDevNum = 0, count = g_wxmswDisplayInfoArray->Count();
+ while ( iDevNum < count )
+ {
+ wxmswDisplayInfo& info = (*g_wxmswDisplayInfoArray)[iDevNum];
+
+ // MSDN: Before calling EnumDisplayDevices, you must initialize the cb
+ // member of DISPLAY_DEVICE to the size, in bytes, of DISPLAY_DEVICE
+ info.m_dd.cb = sizeof(info.m_dd);
+
+ if ( !EnumDisplayDevices ( NULL, iDevNum, &info.m_dd, 0 ) )
+ wxLogLastError(wxT("EnumDisplayDevices"));
+
+ // get this display's Depth
+ DEVMODE devmode;
+ memset ( &devmode, 0, sizeof(devmode) );
+
+ // MSDN: Before calling EnumDisplaySettings, set the dmSize member to
+ // sizeof(DEVMODE), and set the dmDriverExtra member to indicate the size,
+ // in bytes, of the additional space available to receive private
+ // driver-data.
+ devmode.dmSize = sizeof(devmode);
+ devmode.dmDriverExtra = 0;
+
+ if ( !EnumDisplaySettings ( info.m_dd.DeviceName, ENUM_CURRENT_SETTINGS, &devmode ) )
+ {
+ wxLogLastError(wxT("EnumDisplaySettings"));
+ devmode.dmFields = 0;
+ }
+
+ if ( !(devmode.dmFields&DM_BITSPERPEL) )
+ info.m_depth = -1;
+ else
+ info.m_depth = devmode.dmBitsPerPel;
+
+
+ iDevNum++;
+ }
+ return TRUE;
+}
+
+void wxmswDisplayModule::OnExit()
+{
+ size_t count = g_wxmswDisplayInfoArray->Count();
+ while ( count-- )
+ {
+ wxmswDisplayInfo* info = g_wxmswDisplayInfoArray->Detach ( count );
+ delete info;
+ }
+ delete g_wxmswDisplayInfoArray;
+ g_wxmswDisplayInfoArray = 0;
+}
+
+// ---------------------------------------------------------------------------
+// wxDisplay
+// ---------------------------------------------------------------------------
+
+size_t wxDisplayBase::GetCount()
+{
+ return GetSystemMetrics ( SM_CMONITORS );
+}
+
+int wxDisplayBase::GetFromPoint ( const wxPoint& pt )
+{
+ POINT pt2;
+ pt2.x = pt.x;
+ pt2.y = pt.y;
+
+ HMONITOR hmon = MonitorFromPoint ( pt2, 0 );
+ if ( !hmon )
+ return -1;
+ size_t count = wxDisplayBase::GetCount(), index;
+
+ for ( index = 0; index < count; index++ )
+ {
+ if ( hmon == (*g_wxmswDisplayInfoArray)[index].m_hmon )
+ return index;
+ }
+
+ return -1;
+}
+
+wxDisplay::wxDisplay ( size_t index ) : wxDisplayBase ( index )
+{
+}
+
+wxRect wxDisplay::GetGeometry() const
+{
+ return (*g_wxmswDisplayInfoArray)[m_index].m_rect;
+}
+
+int wxDisplay::GetDepth() const
+{
+ return (*g_wxmswDisplayInfoArray)[m_index].m_depth;
+}
+
+wxString wxDisplay::GetName() const
+{
+ return wxString ( (*g_wxmswDisplayInfoArray)[m_index].m_dd.DeviceName );
+}
+
+#endif//wxUSE_DISPLAY
projects / wxWidgets.git / commitdiff
