display.cpp

Wxpython Implemented on Windows CE, Source code

/////////////////////////////////////////////////////////////////////////////
// Name:        src/mac/classic/display.cpp
// Purpose:     Mac implementation of wxDisplay class
// Author:      Brian Victor
// Modified by: Royce Mitchell III & Ryan Norton, Vadim Zeitlin
// Created:     06/21/02
// RCS-ID:      $Id: display.cpp,v 1.9 2006/06/19 20:18:31 ABX Exp $
// Copyright:   (c) wxWidgets team
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#if wxUSE_DISPLAY

#include "wx/display.h"

#ifndef WX_PRECOMP
    #include "wx/dynarray.h"
    #include "wx/log.h"
    #include "wx/string.h"
    #include "wx/gdicmn.h"
#endif

#ifdef __DARWIN__
    #include <Carbon/Carbon.h>
#else
    #include <Gestalt.h>
    #include <Displays.h>
    #include <Quickdraw.h>
    #include <Video.h>  //for VDSwitchInfoRec
    #include <FixMath.h>
#endif

#include "wx/display_impl.h"

// ----------------------------------------------------------------------------
// display implementation classes
// ----------------------------------------------------------------------------

class wxDisplayImplMac : public wxDisplayImpl
{
public:
    wxDisplayImplMac(size_t n, GDHandle hndl)
        : wxDisplayImpl(n),
          m_hndl(hndl)
    {
    }

    virtual wxRect GetGeometry() 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:
    GDHandle m_hndl;

    DECLARE_NO_COPY_CLASS(wxDisplayImplMac)
};

class wxDisplayFactoryMac : public wxDisplayFactory
{
public:
    wxDisplayFactoryMac();

    virtual wxDisplayImpl *CreateDisplay(size_t n);
    virtual size_t GetCount();
    virtual int GetFromPoint(const wxPoint& pt);

protected:
    DECLARE_NO_COPY_CLASS(wxDisplayFactoryMac)
};

// ============================================================================
// wxDisplayFactoryMac implementation
// ============================================================================

size_t wxDisplayFactoryMac::GetCount()
{
    size_t num = 0;
    GDHandle hndl = DMGetFirstScreenDevice(true);
    while(hndl)
    {
        num++;
        hndl = DMGetNextScreenDevice(hndl, true);
    }
    return num;
}

int wxDisplayFactoryMac::GetFromPoint(const wxPoint &p)
{
    size_t num = 0;
    GDHandle hndl = DMGetFirstScreenDevice(true);
    while(hndl)
    {
        Rect screenrect = (*hndl)->gdRect;
        if (p.x >= screenrect.left &&
            p.x <= screenrect.right &&
            p.y >= screenrect.top &&
            p.y <= screenrect.bottom)
        {
            return num;
        }
        num++;
        hndl = DMGetNextScreenDevice(hndl, true);
    }

    return wxNOT_FOUND;
}

wxDisplayImpl *wxDisplayFactoryMac::CreateDisplay(size_t n)
{
    size_t nOrig = n;

    GDHandle hndl = DMGetFirstScreenDevice(true);
    while(hndl)
    {
        if (n == 0)
        {
            return new wxDisplayImplMac(nOrig, hndl);
        }
        n--;
        hndl = DMGetNextScreenDevice(hndl, true);
    }

    return NULL;
}

// ============================================================================
// wxDisplayImplMac implementation
// ============================================================================

wxRect wxDisplayImplMac::GetGeometry() const
{
    Rect screenrect = (*m_hndl)->gdRect;
    return wxRect(screenrect.left, screenrect.top,
                  screenrect.right - screenrect.left,
                  screenrect.bottom - screenrect.top);
}

struct DMModeIteratorRec
{
    wxArrayVideoModes* pModes;
    const wxVideoMode* pMatchMode;
};

pascal void DMModeListIteratorProc (    void* pData,
                  DMListIndexType nIndex,
                  DMDisplayModeListEntryPtr pInfo)
{
    DMModeIteratorRec* pInfoData = (DMModeIteratorRec*) pData;

    //Note that in testing the refresh rate is always 0 on my ibook - RN
    int refresh = (int) Fix2Long(pInfo->displayModeResolutionInfo->csRefreshRate);

    for(unsigned long i = 0; i < pInfo->displayModeDepthBlockInfo->depthBlockCount; ++i)
    {
#define pDBI pInfo->displayModeDepthBlockInfo->depthVPBlock[i].depthVPBlock

        if (wxVideoMode((int) pInfo->displayModeResolutionInfo->csHorizontalPixels,
                  (int) pInfo->displayModeResolutionInfo->csVerticalLines,
                  (int) pDBI->vpPixelSize,
                  refresh).Matches(*pInfoData->pMatchMode) )
            {
            pInfoData->pModes->Add(wxVideoMode((int) pInfo->displayModeResolutionInfo->csHorizontalPixels,
                           (int) pInfo->displayModeResolutionInfo->csVerticalLines,
                           (int) pDBI->vpPixelSize,
                           refresh));
            }
#undef pDBI
    }
}

struct DMModeInfoRec
{
    const wxVideoMode* pMode;
    VDSwitchInfoRec sMode;
    bool bMatched;
};

pascal void DMModeInfoProc (    void* pData,
                              DMListIndexType nIndex,
                              DMDisplayModeListEntryPtr pInfo)
{
    DMModeInfoRec* pInfoData = (DMModeInfoRec*) pData;
    Fixed refresh = Long2Fix(pInfoData->pMode->refresh);

    for(unsigned long i = 0; i < pInfo->displayModeDepthBlockInfo->depthBlockCount; ++i)
        {
#define pDBI pInfo->displayModeDepthBlockInfo->depthVPBlock[i].depthVPBlock
            if (pInfoData->pMode->w == (int&) pInfo->displayModeResolutionInfo->csHorizontalPixels &&
                pInfoData->pMode->h == (int&) pInfo->displayModeResolutionInfo->csVerticalLines &&
                pInfoData->pMode->bpp == (int) pDBI->vpPixelSize &&
                refresh == pInfo->displayModeResolutionInfo->csRefreshRate)
            {
                memcpy(&pInfoData->sMode, pInfo->displayModeDepthBlockInfo->depthVPBlock[i].depthSwitchInfo,
                               sizeof(VDSwitchInfoRec));
                pInfoData->sMode.csMode = pDBI->vpPixelSize;
                pInfoData->bMatched = true;
                break;
            }
#undef pDBI
        }
}

struct DMModeTransRec
{
    wxVideoMode Mode;
    const VDSwitchInfoRec* psMode;
    bool bMatched;
};

pascal void DMModeTransProc (    void* pData,
                      DMListIndexType nIndex,
                      DMDisplayModeListEntryPtr pInfo)
{
    DMModeTransRec* pInfoData = (DMModeTransRec*) pData;