/////////////////////////////////////////////////////////////////////////////
-// Name: metafile.cpp
+// Name: msw/metafile.cpp
// Purpose: wxMetafileDC etc.
// Author: Julian Smart
-// Modified by:
+// Modified by: VZ 07.01.00: implemented wxMetaFileDataObject
// Created: 04/01/98
// RCS-ID: $Id$
// Copyright: (c) Julian Smart and Markus Holzem
-// Licence: wxWindows license
+// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
#ifdef __GNUG__
-#pragma implementation "metafile.h"
+ #pragma implementation "metafile.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
#ifndef WX_PRECOMP
-#include "wx/setup.h"
+ #include "wx/setup.h"
#endif
#if wxUSE_METAFILE
#ifndef WX_PRECOMP
-#include "wx/utils.h"
-#include "wx/app.h"
+ #include "wx/utils.h"
+ #include "wx/app.h"
#endif
#include "wx/metafile.h"
#include <stdio.h>
#include <string.h>
-extern bool wxClipboardIsOpen;
+// ----------------------------------------------------------------------------
+// wxWin macros
+// ----------------------------------------------------------------------------
-#if !USE_SHARED_LIBRARY
IMPLEMENT_DYNAMIC_CLASS(wxMetafile, wxObject)
IMPLEMENT_ABSTRACT_CLASS(wxMetafileDC, wxDC)
-#endif
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxMetafileRefData
+// ----------------------------------------------------------------------------
/*
* Metafiles
* it on the clipboard.
*/
-wxMetafileRefData::wxMetafileRefData(void)
+wxMetafileRefData::wxMetafileRefData()
{
m_metafile = 0;
m_windowsMappingMode = wxMM_ANISOTROPIC;
+ m_width = m_height = 0;
}
-wxMetafileRefData::~wxMetafileRefData(void)
+wxMetafileRefData::~wxMetafileRefData()
{
if (m_metafile)
{
}
}
+// ----------------------------------------------------------------------------
+// wxMetafile
+// ----------------------------------------------------------------------------
+
wxMetafile::wxMetafile(const wxString& file)
{
m_refData = new wxMetafileRefData;
M_METAFILEDATA->m_metafile = (WXHANDLE) GetMetaFile(file);
}
-wxMetafile::~wxMetafile(void)
+wxMetafile::~wxMetafile()
{
}
if (!m_refData)
return FALSE;
- bool alreadyOpen=wxClipboardOpen();
+ bool alreadyOpen = wxClipboardOpen();
if (!alreadyOpen)
{
wxOpenClipboard();
- if (!wxEmptyClipboard()) return FALSE;
+ if (!wxEmptyClipboard())
+ return FALSE;
}
bool success = wxSetClipboardData(wxDF_METAFILE, this, width,height);
- if (!alreadyOpen) wxCloseClipboard();
- return (bool) success;
+ if (!alreadyOpen)
+ wxCloseClipboard();
+
+ return success;
}
bool wxMetafile::Play(wxDC *dc)
dc->BeginDrawing();
if (dc->GetHDC() && M_METAFILEDATA->m_metafile)
- PlayMetaFile((HDC) dc->GetHDC(), (HMETAFILE) M_METAFILEDATA->m_metafile);
+ PlayMetaFile(GetHdcOf(*dc), (HMETAFILE) M_METAFILEDATA->m_metafile);
dc->EndDrawing();
void wxMetafile::SetHMETAFILE(WXHANDLE mf)
{
- if (m_refData)
+ if (!m_refData)
m_refData = new wxMetafileRefData;
M_METAFILEDATA->m_metafile = mf;
void wxMetafile::SetWindowsMappingMode(int mm)
{
- if (m_refData)
+ if (!m_refData)
m_refData = new wxMetafileRefData;
M_METAFILEDATA->m_windowsMappingMode = mm;
}
-/*
- * Metafile device context
- *
- */
+// ----------------------------------------------------------------------------
+// Metafile device context
+// ----------------------------------------------------------------------------
// Original constructor that does not takes origin and extent. If you use this,
// *DO* give origin/extent arguments to wxMakeMetafilePlaceable.
wxMetafileDC::wxMetafileDC(const wxString& file)
{
- m_metaFile = NULL;
- m_minX = 10000;
- m_minY = 10000;
- m_maxX = -10000;
- m_maxY = -10000;
-// m_title = NULL;
+ m_metaFile = NULL;
+ m_minX = 10000;
+ m_minY = 10000;
+ m_maxX = -10000;
+ m_maxY = -10000;
+ // m_title = NULL;
- if (!file.IsNull() && wxFileExists(file))
- wxRemoveFile(file);
+ if (!file.IsNull() && wxFileExists(file))
+ wxRemoveFile(file);
- if (!file.IsNull() && (file != wxT("")))
- m_hDC = (WXHDC) CreateMetaFile(file);
- else
- m_hDC = (WXHDC) CreateMetaFile(NULL);
+ if (!file.IsNull() && (file != wxT("")))
+ m_hDC = (WXHDC) CreateMetaFile(file);
+ else
+ m_hDC = (WXHDC) CreateMetaFile(NULL);
- m_ok = (m_hDC != (WXHDC) 0) ;
+ m_ok = (m_hDC != (WXHDC) 0) ;
- // Actual Windows mapping mode, for future reference.
- m_windowsMappingMode = wxMM_TEXT;
+ // Actual Windows mapping mode, for future reference.
+ m_windowsMappingMode = wxMM_TEXT;
- SetMapMode(wxMM_TEXT); // NOTE: does not set HDC mapmode (this is correct)
+ SetMapMode(wxMM_TEXT); // NOTE: does not set HDC mapmode (this is correct)
}
// New constructor that takes origin and extent. If you use this, don't
// give origin/extent arguments to wxMakeMetafilePlaceable.
wxMetafileDC::wxMetafileDC(const wxString& file, int xext, int yext, int xorg, int yorg)
{
- m_minX = 10000;
- m_minY = 10000;
- m_maxX = -10000;
- m_maxY = -10000;
- if (file != wxT("") && wxFileExists(file)) wxRemoveFile(file);
- m_hDC = (WXHDC) CreateMetaFile(file);
+ m_minX = 10000;
+ m_minY = 10000;
+ m_maxX = -10000;
+ m_maxY = -10000;
+ if ( !!file && wxFileExists(file))
+ wxRemoveFile(file);
+ m_hDC = (WXHDC) CreateMetaFile(file);
- m_ok = TRUE;
+ m_ok = TRUE;
- ::SetWindowOrgEx((HDC) m_hDC,xorg,yorg, NULL);
- ::SetWindowExtEx((HDC) m_hDC,xext,yext, NULL);
+ ::SetWindowOrgEx((HDC) m_hDC,xorg,yorg, NULL);
+ ::SetWindowExtEx((HDC) m_hDC,xext,yext, NULL);
- // Actual Windows mapping mode, for future reference.
- m_windowsMappingMode = wxMM_ANISOTROPIC;
+ // Actual Windows mapping mode, for future reference.
+ m_windowsMappingMode = wxMM_ANISOTROPIC;
- SetMapMode(wxMM_TEXT); // NOTE: does not set HDC mapmode (this is correct)
+ SetMapMode(wxMM_TEXT); // NOTE: does not set HDC mapmode (this is correct)
}
-wxMetafileDC::~wxMetafileDC(void)
+wxMetafileDC::~wxMetafileDC()
{
- m_hDC = 0;
+ m_hDC = 0;
}
void wxMetafileDC::GetTextExtent(const wxString& string, long *x, long *y,
long *descent, long *externalLeading, wxFont *theFont, bool use16bit) const
{
- wxFont *fontToUse = theFont;
- if (!fontToUse)
- fontToUse = (wxFont*) &m_font;
-
- HDC dc = GetDC(NULL);
-
- SIZE sizeRect;
- TEXTMETRIC tm;
- GetTextExtentPoint(dc, WXSTRINGCAST string, wxStrlen(WXSTRINGCAST string), &sizeRect);
- GetTextMetrics(dc, &tm);
-
- ReleaseDC(NULL, dc);
-
- if ( x )
- *x = sizeRect.cx;
- if ( y )
- *y = sizeRect.cy;
- if ( descent )
- *descent = tm.tmDescent;
- if ( externalLeading )
- *externalLeading = tm.tmExternalLeading;
+ wxFont *fontToUse = theFont;
+ if (!fontToUse)
+ fontToUse = (wxFont*) &m_font;
+
+ HDC dc = GetDC(NULL);
+
+ SIZE sizeRect;
+ TEXTMETRIC tm;
+ GetTextExtentPoint(dc, WXSTRINGCAST string, wxStrlen(WXSTRINGCAST string), &sizeRect);
+ GetTextMetrics(dc, &tm);
+
+ ReleaseDC(NULL, dc);
+
+ if ( x )
+ *x = sizeRect.cx;
+ if ( y )
+ *y = sizeRect.cy;
+ if ( descent )
+ *descent = tm.tmDescent;
+ if ( externalLeading )
+ *externalLeading = tm.tmExternalLeading;
}
-wxMetafile *wxMetafileDC::Close(void)
+wxMetafile *wxMetafileDC::Close()
{
- SelectOldObjects(m_hDC);
- HANDLE mf = CloseMetaFile((HDC) m_hDC);
- m_hDC = 0;
- if (mf)
- {
- wxMetafile *wx_mf = new wxMetafile;
- wx_mf->SetHMETAFILE((WXHANDLE) mf);
- wx_mf->SetWindowsMappingMode(m_windowsMappingMode);
- return wx_mf;
- }
- return NULL;
+ SelectOldObjects(m_hDC);
+ HANDLE mf = CloseMetaFile((HDC) m_hDC);
+ m_hDC = 0;
+ if (mf)
+ {
+ wxMetafile *wx_mf = new wxMetafile;
+ wx_mf->SetHMETAFILE((WXHANDLE) mf);
+ wx_mf->SetWindowsMappingMode(m_windowsMappingMode);
+ return wx_mf;
+ }
+ return NULL;
}
void wxMetafileDC::SetMapMode(int mode)
{
- m_mappingMode = mode;
+ m_mappingMode = mode;
-// int pixel_width = 0;
-// int pixel_height = 0;
-// int mm_width = 0;
-// int mm_height = 0;
+ // int pixel_width = 0;
+ // int pixel_height = 0;
+ // int mm_width = 0;
+ // int mm_height = 0;
- float mm2pixelsX = 10.0;
- float mm2pixelsY = 10.0;
+ float mm2pixelsX = 10.0;
+ float mm2pixelsY = 10.0;
- switch (mode)
- {
- case wxMM_TWIPS:
- {
- m_logicalScaleX = (float)(twips2mm * mm2pixelsX);
- m_logicalScaleY = (float)(twips2mm * mm2pixelsY);
- break;
- }
- case wxMM_POINTS:
- {
- m_logicalScaleX = (float)(pt2mm * mm2pixelsX);
- m_logicalScaleY = (float)(pt2mm * mm2pixelsY);
- break;
- }
- case wxMM_METRIC:
- {
- m_logicalScaleX = mm2pixelsX;
- m_logicalScaleY = mm2pixelsY;
- break;
- }
- case wxMM_LOMETRIC:
+ switch (mode)
{
- m_logicalScaleX = (float)(mm2pixelsX/10.0);
- m_logicalScaleY = (float)(mm2pixelsY/10.0);
- break;
+ case wxMM_TWIPS:
+ {
+ m_logicalScaleX = (float)(twips2mm * mm2pixelsX);
+ m_logicalScaleY = (float)(twips2mm * mm2pixelsY);
+ break;
+ }
+ case wxMM_POINTS:
+ {
+ m_logicalScaleX = (float)(pt2mm * mm2pixelsX);
+ m_logicalScaleY = (float)(pt2mm * mm2pixelsY);
+ break;
+ }
+ case wxMM_METRIC:
+ {
+ m_logicalScaleX = mm2pixelsX;
+ m_logicalScaleY = mm2pixelsY;
+ break;
+ }
+ case wxMM_LOMETRIC:
+ {
+ m_logicalScaleX = (float)(mm2pixelsX/10.0);
+ m_logicalScaleY = (float)(mm2pixelsY/10.0);
+ break;
+ }
+ default:
+ case wxMM_TEXT:
+ {
+ m_logicalScaleX = 1.0;
+ m_logicalScaleY = 1.0;
+ break;
+ }
}
- default:
- case wxMM_TEXT:
- {
- m_logicalScaleX = 1.0;
- m_logicalScaleY = 1.0;
- break;
- }
- }
- m_windowExtX = 100;
- m_windowExtY = 100;
+ m_windowExtX = 100;
+ m_windowExtY = 100;
}
+// ----------------------------------------------------------------------------
+// wxMakeMetafilePlaceable
+// ----------------------------------------------------------------------------
+
#ifdef __WIN32__
struct RECT32
{
};
struct mfPLACEABLEHEADER {
- DWORD key;
- short hmf;
- RECT32 bbox;
- WORD inch;
- DWORD reserved;
- WORD checksum;
+ DWORD key;
+ short hmf;
+ RECT32 bbox;
+ WORD inch;
+ DWORD reserved;
+ WORD checksum;
};
#else
struct mfPLACEABLEHEADER {
- DWORD key;
- HANDLE hmf;
- RECT bbox;
- WORD inch;
- DWORD reserved;
- WORD checksum;
+ DWORD key;
+ HANDLE hmf;
+ RECT bbox;
+ WORD inch;
+ DWORD reserved;
+ WORD checksum;
};
#endif
* and sets the window origin and extent to mimic the wxMM_TEXT mapping mode.
*
*/
-
+
bool wxMakeMetafilePlaceable(const wxString& filename, float scale)
{
return wxMakeMetafilePlaceable(filename, 0, 0, 0, 0, scale, FALSE);
bool wxMakeMetafilePlaceable(const wxString& filename, int x1, int y1, int x2, int y2, float scale, bool useOriginAndExtent)
{
- // I'm not sure if this is the correct way of suggesting a scale
- // to the client application, but it's the only way I can find.
- int unitsPerInch = (int)(576/scale);
-
- mfPLACEABLEHEADER header;
- header.key = 0x9AC6CDD7L;
- header.hmf = 0;
- header.bbox.left = (int)(x1);
- header.bbox.top = (int)(y1);
- header.bbox.right = (int)(x2);
- header.bbox.bottom = (int)(y2);
- header.inch = unitsPerInch;
- header.reserved = 0;
-
- // Calculate checksum
- WORD *p;
- mfPLACEABLEHEADER *pMFHead = &header;
- for (p =(WORD *)pMFHead,pMFHead -> checksum = 0;
- p < (WORD *)&pMFHead ->checksum; ++p)
- pMFHead ->checksum ^= *p;
-
- FILE *fd = fopen(filename.fn_str(), "rb");
- if (!fd) return FALSE;
-
- wxChar tempFileBuf[256];
- wxGetTempFileName(wxT("mf"), tempFileBuf);
- FILE *fHandle = fopen(wxConvFile.cWX2MB(tempFileBuf), "wb");
- if (!fHandle)
- return FALSE;
- fwrite((void *)&header, sizeof(unsigned char), sizeof(mfPLACEABLEHEADER), fHandle);
-
- // Calculate origin and extent
- int originX = x1;
- int originY = y1;
- int extentX = x2 - x1;
- int extentY = (y2 - y1);
-
- // Read metafile header and write
- METAHEADER metaHeader;
- fread((void *)&metaHeader, sizeof(unsigned char), sizeof(metaHeader), fd);
-
- if (useOriginAndExtent)
- metaHeader.mtSize += 15;
- else
- metaHeader.mtSize += 5;
-
- fwrite((void *)&metaHeader, sizeof(unsigned char), sizeof(metaHeader), fHandle);
-
- // Write SetMapMode, SetWindowOrigin and SetWindowExt records
- char modeBuffer[8];
- char originBuffer[10];
- char extentBuffer[10];
- METARECORD *modeRecord = (METARECORD *)&modeBuffer;
-
- METARECORD *originRecord = (METARECORD *)&originBuffer;
- METARECORD *extentRecord = (METARECORD *)&extentBuffer;
-
- modeRecord->rdSize = 4;
- modeRecord->rdFunction = META_SETMAPMODE;
- modeRecord->rdParm[0] = MM_ANISOTROPIC;
-
- originRecord->rdSize = 5;
- originRecord->rdFunction = META_SETWINDOWORG;
- originRecord->rdParm[0] = originY;
- originRecord->rdParm[1] = originX;
-
- extentRecord->rdSize = 5;
- extentRecord->rdFunction = META_SETWINDOWEXT;
- extentRecord->rdParm[0] = extentY;
- extentRecord->rdParm[1] = extentX;
-
- fwrite((void *)modeBuffer, sizeof(char), 8, fHandle);
-
- if (useOriginAndExtent)
- {
- fwrite((void *)originBuffer, sizeof(char), 10, fHandle);
- fwrite((void *)extentBuffer, sizeof(char), 10, fHandle);
- }
-
- int ch = -2;
- while (ch != EOF)
- {
- ch = getc(fd);
- if (ch != EOF)
+ // I'm not sure if this is the correct way of suggesting a scale
+ // to the client application, but it's the only way I can find.
+ int unitsPerInch = (int)(576/scale);
+
+ mfPLACEABLEHEADER header;
+ header.key = 0x9AC6CDD7L;
+ header.hmf = 0;
+ header.bbox.left = (int)(x1);
+ header.bbox.top = (int)(y1);
+ header.bbox.right = (int)(x2);
+ header.bbox.bottom = (int)(y2);
+ header.inch = unitsPerInch;
+ header.reserved = 0;
+
+ // Calculate checksum
+ WORD *p;
+ mfPLACEABLEHEADER *pMFHead = &header;
+ for (p =(WORD *)pMFHead,pMFHead -> checksum = 0;
+ p < (WORD *)&pMFHead ->checksum; ++p)
+ pMFHead ->checksum ^= *p;
+
+ FILE *fd = fopen(filename.fn_str(), "rb");
+ if (!fd) return FALSE;
+
+ wxChar tempFileBuf[256];
+ wxGetTempFileName(wxT("mf"), tempFileBuf);
+ FILE *fHandle = fopen(wxConvFile.cWX2MB(tempFileBuf), "wb");
+ if (!fHandle)
+ return FALSE;
+ fwrite((void *)&header, sizeof(unsigned char), sizeof(mfPLACEABLEHEADER), fHandle);
+
+ // Calculate origin and extent
+ int originX = x1;
+ int originY = y1;
+ int extentX = x2 - x1;
+ int extentY = (y2 - y1);
+
+ // Read metafile header and write
+ METAHEADER metaHeader;
+ fread((void *)&metaHeader, sizeof(unsigned char), sizeof(metaHeader), fd);
+
+ if (useOriginAndExtent)
+ metaHeader.mtSize += 15;
+ else
+ metaHeader.mtSize += 5;
+
+ fwrite((void *)&metaHeader, sizeof(unsigned char), sizeof(metaHeader), fHandle);
+
+ // Write SetMapMode, SetWindowOrigin and SetWindowExt records
+ char modeBuffer[8];
+ char originBuffer[10];
+ char extentBuffer[10];
+ METARECORD *modeRecord = (METARECORD *)&modeBuffer;
+
+ METARECORD *originRecord = (METARECORD *)&originBuffer;
+ METARECORD *extentRecord = (METARECORD *)&extentBuffer;
+
+ modeRecord->rdSize = 4;
+ modeRecord->rdFunction = META_SETMAPMODE;
+ modeRecord->rdParm[0] = MM_ANISOTROPIC;
+
+ originRecord->rdSize = 5;
+ originRecord->rdFunction = META_SETWINDOWORG;
+ originRecord->rdParm[0] = originY;
+ originRecord->rdParm[1] = originX;
+
+ extentRecord->rdSize = 5;
+ extentRecord->rdFunction = META_SETWINDOWEXT;
+ extentRecord->rdParm[0] = extentY;
+ extentRecord->rdParm[1] = extentX;
+
+ fwrite((void *)modeBuffer, sizeof(char), 8, fHandle);
+
+ if (useOriginAndExtent)
+ {
+ fwrite((void *)originBuffer, sizeof(char), 10, fHandle);
+ fwrite((void *)extentBuffer, sizeof(char), 10, fHandle);
+ }
+
+ int ch = -2;
+ while (ch != EOF)
{
- putc(ch, fHandle);
+ ch = getc(fd);
+ if (ch != EOF)
+ {
+ putc(ch, fHandle);
+ }
}
- }
- fclose(fHandle);
- fclose(fd);
- wxRemoveFile(filename);
- wxCopyFile(tempFileBuf, filename);
- wxRemoveFile(tempFileBuf);
- return TRUE;
+ fclose(fHandle);
+ fclose(fd);
+ wxRemoveFile(filename);
+ wxCopyFile(tempFileBuf, filename);
+ wxRemoveFile(tempFileBuf);
+ return TRUE;
+}
+
+// ----------------------------------------------------------------------------
+// wxMetafileDataObject
+// ----------------------------------------------------------------------------
+
+size_t wxMetafileDataObject::GetDataSize() const
+{
+ return sizeof(METAFILEPICT);
+}
+
+bool wxMetafileDataObject::GetDataHere(void *buf) const
+{
+ METAFILEPICT *mfpict = (METAFILEPICT *)buf;
+ const wxMetafile mf = GetMetafile();
+ mfpict->mm = mf.GetWindowsMappingMode();
+ mfpict->xExt = mf.GetWidth();
+ mfpict->yExt = mf.GetHeight();
+ mfpict->hMF = (HMETAFILE)mf.GetHMETAFILE();
+
+ wxCHECK_MSG( mfpict->hMF, FALSE, _T("copying invalid metafile") );
+
+ return TRUE;
+}
+
+bool wxMetafileDataObject::SetData(size_t WXUNUSED(len), const void *buf)
+{
+ const METAFILEPICT *mfpict = (const METAFILEPICT *)buf;
+
+ wxMetafile mf;
+ mf.SetWindowsMappingMode(mfpict->mm);
+ mf.SetWidth(mfpict->xExt);
+ mf.SetHeight(mfpict->yExt);
+ mf.SetHMETAFILE((WXHANDLE)mfpict->hMF);
+
+ wxCHECK_MSG( mfpict->hMF, FALSE, _T("pasting invalid metafile") );
+
+ SetMetafile(mf);
+
+ return TRUE;
}
#endif // wxUSE_METAFILE
projects / wxWidgets.git / blobdiff