C++ FV_View::cmdUnselectSelection方法代码示例

/*!
  this method goes with setSelectionStatus().
  
  we are called by the clipboard (thru the callback chain)
  in response to another application stealing the X Selection.
  
  we need to notify the view so that it can clear the screen
  as is the custom on X -- only one selection at any time.
  
  we have to watch out here because when we call up to clear
  the selection, the view will notify the view-listeners of
  the change, which may cause setSelectionStatus() to get
  called and thus update the clipboard -- this could recurse
  a while....  
*/
void AP_UnixApp::clearSelection(void)
{
    if (m_bSelectionInFlux)
		return;
    m_bSelectionInFlux = true;
	
    if (m_pViewSelection && m_pFrameSelection && m_bHasSelection)
    {
		FV_View *pView = static_cast<FV_View *>(m_pViewSelection);
		pView->cmdUnselectSelection();
		m_bHasSelection = false;
    }
	
    m_bSelectionInFlux = false;
}

//.........这里部分代码省略.........
				off_t size = myFileStat.st_size;
				UT_usleep(100000); // wait 100 milliseconds (so program may have time to write something)
				ok = stat(szTmp.c_str(),&myFileStat);
				while((mod_time != myFileStat.st_mtime) || !size || (size > 0 && size != myFileStat.st_size))
				{
					mod_time = myFileStat.st_mtime;
					size = myFileStat.st_size;
					ok = stat(szTmp.c_str(),&myFileStat);
					UT_usleep(500000); // wait a while, let program write its data

					// just make sure the program is still running, otherwise we could get stuck in a loop
					if (!isProcessStillAlive(procInfo))
					{
						pFrame->showMessageBox("External image editor appears to have been terminated unexpectedly.", 
								XAP_Dialog_MessageBox::b_O,XAP_Dialog_MessageBox::a_OK);
						//procInfo.hProcess = 0;
						goto Cleanup;
					}
				}
				mod_time = myFileStat.st_mtime;
				UT_usleep(100000); // wait a while just to make sure program is done with file

//
// OK replace the current image with this.
//
				IEGraphicFileType iegft = IEGFT_Unknown;
				FG_Graphic* pFG;
		
				UT_Error errorCode;
		
#ifdef ENABLE_BMP
//
// Convert bmp back to png (as we can not assume AbiWord has builtin BMP support [as its now an optional plugin])
// NOTE: probably looses detail/information though!!! so if possible use only PNG
//
				if (!bLeaveImageAsPNG)
				{
					if (convertBMP2PNG(szTmp.c_str(), szTmpPng.c_str()))
					{
						pFrame->showMessageBox("Unable to convert BMP image data back to PNG for AbiWord to import!", XAP_Dialog_MessageBox::b_O,XAP_Dialog_MessageBox::a_OK);
						UT_ASSERT(UT_SHOULD_NOT_HAPPEN);
						goto Cleanup;
					}
				}
#endif

				errorCode = IE_ImpGraphic::loadGraphic(szTmpPng.c_str(), iegft, &pFG);
				if(errorCode)
				{
					UT_ASSERT(UT_SHOULD_NOT_HAPPEN);
					pFrame->showMessageBox("Error making pFG. Could not put image back into Abiword", XAP_Dialog_MessageBox::b_O,XAP_Dialog_MessageBox::a_OK);
					goto Cleanup;
				}

				unlockGUI(d);

				pView->cmdUnselectSelection();
				pView->setPoint(pos);
				pView->extSelHorizontal(true, 1); // move point forward one
				errorCode = pView->cmdInsertGraphic(pFG);
				if (errorCode)
				{
					pFrame->showMessageBox("Could not put image back into Abiword", XAP_Dialog_MessageBox::b_O,XAP_Dialog_MessageBox::a_OK);
					UT_ASSERT(UT_SHOULD_NOT_HAPPEN);
					DELETEP(pFG);
					goto Cleanup;
				}
				DELETEP(pFG);
//
// Reselect the image
//
				pView->setPoint(pos);
				pView->extSelHorizontal(true, 1); // move point forward one

				lockGUI(d);
			}
		}
	}

//
// Normal exit, delete the tempfile and return success
//
	remove(szTmpPng.c_str());
	remove(szTmp.c_str());	// should silently fail if exporting as PNG file
	unlockGUI(d);
	return true;

//
// Something went wrong.
//
 Cleanup: 
	remove(szTmpPng.c_str());
	remove(szTmp.c_str());	// should silently fail if exporting as PNG file
	unlockGUI(d);
//
// Kill the image editor.
//
	endProcess(procInfo);
	return false;
}