/*!
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;
}
//
// AbiPaint editImage
// ------------------
// This is the function that we actually call to invoke the image editor.
//
// parameters are:
// AV_View* v
// EV_EditMethodCallData *d
//
static DECLARE_ABI_PLUGIN_METHOD(editImage)
{
UT_UNUSED(v);
// Get the current view that the user is in.
XAP_Frame *pFrame = XAP_App::getApp()->getLastFocussedFrame();
FV_View* pView = static_cast<FV_View*>(pFrame->getCurrentView());
//
// get values from preference (initial plugin execution should have set sensible defaults)
//
UT_String imageApp; // holds MAXPATH\appName <space> MAXPATH\imagefilename
bool bLeaveImageAsPNG;
// read stuff from the preference value
if (!prefsScheme->getValue(ABIPAINT_PREF_KEY_szProgramName, imageApp))
{
UT_ASSERT(UT_SHOULD_NOT_HAPPEN);
getDefaultApp(imageApp, bLeaveImageAsPNG);
}
// now that we have program name, try to get other flag (allows overriding default value)
// Note: we allow overriding, otherwise if we don't adhere to user's setting
// then the use BMP or not menu should be greyed to note it has no effect
prefsScheme->getValueBool(ABIPAINT_PREF_KEY_bLeaveImageAsPNG, &bLeaveImageAsPNG);
//
// generate a temp file name...
//
char *szTempFileName = NULL;
GError *err = NULL;
gint fp = g_file_open_tmp ("XXXXXX", &szTempFileName, &err);
if (err) {
g_warning ("%s", err->message);
g_error_free (err); err = NULL;
return FALSE;
}
close(fp);
UT_String szTmpPng = szTempFileName;
szTmpPng += ".png";
UT_String szTmp = szTmpPng; // default: our temp file is the created png file
PT_DocPosition pos = pView->saveSelectedImage((const char *)szTmpPng.c_str());
if(pos == 0)
{
remove(szTempFileName);
g_free (szTempFileName); szTempFileName = NULL;
pFrame->showMessageBox("You must select an Image before editing it", XAP_Dialog_MessageBox::b_O,XAP_Dialog_MessageBox::a_OK);
return false;
}
#ifdef ENABLE_BMP
//
// Convert png into bmp for best compatibility with Windows programs
// NOTE: probably looses detail/information though!!! so if possible use PNG
//
if (!bLeaveImageAsPNG)
{
szTmp = szTempFileName;
szTmp += ".bmp"; // our temp file is a bmp file
if (convertPNG2BMP(szTmpPng.c_str(), szTmp.c_str()))
{
pFrame->showMessageBox("Unable to convert PNG image data to BMP for external program use!", XAP_Dialog_MessageBox::b_O,XAP_Dialog_MessageBox::a_OK);
UT_ASSERT(UT_SHOULD_NOT_HAPPEN);
remove(szTempFileName);
g_free (szTempFileName); szTempFileName = NULL;
remove(szTmpPng.c_str());
return false;
}
// remove(szTmpPng.c_str());
}
#endif
// remove the temp file (that lacks proper extension)
remove(szTempFileName);
g_free (szTempFileName); szTempFileName = NULL;
//
// Get the initial file status.
//
struct stat myFileStat;
int ok = stat(szTmp.c_str(),&myFileStat);
if(ok < 0)
{
UT_ASSERT(UT_SHOULD_NOT_HAPPEN);
remove(szTmpPng.c_str());
remove(szTmp.c_str()); // should silently fail if exporting as PNG file
return false;
}
time_t mod_time = myFileStat.st_mtime;
//
// Fire up the image editor...
//
ProcessInfo procInfo;
if (!createChildProcess(imageApp.c_str(), szTmp.c_str(), &procInfo))
{
UT_String msg = "Unable to run program: "; msg += imageApp + " " + szTmp;
pFrame->showMessageBox(msg.c_str(), XAP_Dialog_MessageBox::b_O,XAP_Dialog_MessageBox::a_OK);
// failed to spawn stuff, so do some cleanup and return failure
remove(szTmpPng.c_str());
remove(szTmp.c_str()); // should silently fail if exporting as PNG file
return false;
}
lockGUI(d);
while (isProcessStillAlive(procInfo))
{
UT_usleep(10000); // wait 10 milliseconds
pFrame->nullUpdate();
ok = stat(szTmp.c_str(),&myFileStat);
if(ok == 0)
{
if(myFileStat.st_mtime != mod_time)
{
// wait for changes to settle (program done writing changes)
// we use both modified time & file size, but really we
// could just use file size as mod time doesn't appear to change for small images
mod_time = myFileStat.st_mtime;
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;
}