2002-07-05 21:24:15 +00:00
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/**
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2007-04-25 03:01:35 +00:00
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* \file PreviewImage.cpp
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2002-09-05 15:14:23 +00:00
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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2002-07-05 21:24:15 +00:00
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*
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2002-12-01 22:59:25 +00:00
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* \author Angus Leeming
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2002-09-05 11:31:30 +00:00
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*
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2003-08-23 00:17:00 +00:00
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* Full author contact details are available in file CREDITS.
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2002-07-05 21:24:15 +00:00
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*/
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#include <config.h>
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#include "PreviewImage.h"
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2013-05-24 05:11:50 +00:00
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2015-07-22 15:04:35 +00:00
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#include "Buffer.h"
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2013-05-24 05:11:50 +00:00
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#include "Dimension.h"
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2002-07-05 21:24:15 +00:00
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#include "GraphicsImage.h"
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#include "GraphicsLoader.h"
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2003-09-05 03:10:30 +00:00
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#include "PreviewLoader.h"
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2002-07-05 21:24:15 +00:00
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Rename files in src/support, step one.
src/support/package.h src/support/Package.h Package
src/support/package.C.in src/support/Package.C.in Package
src/support/path.h src/support/Path.h Path
src/support/fs_extras.h src/support/fs_extras.h NOCLASSES
src/support/RandomAccessList.h src/support/RandomAccessList.h RandomAccessList
src/support/lyxmanip.h src/support/lyxmanip.h NOCLASSES
src/support/rename.C src/support/rename.cpp NOCLASSES
src/support/abort.C src/support/abort.cpp NOCLASSES
src/support/lyxlib.h src/support/lyxlib.h NOCLASSES
src/support/ExceptionMessage.h src/support/ExceptionMessage.h ExceptionMessage
src/support/copy.C src/support/copy.cpp NOCLASSES
src/support/limited_stack.h src/support/limited_stack.h limited_stack
src/support/filefilterlist.C src/support/FileFilterList.cpp ['FileFilterList', 'Filter']
src/support/cow_ptr.h src/support/cow_ptr.h cow_ptr
src/support/os_unix.C src/support/os_unix.cpp NOCLASSES
src/support/socktools.h src/support/socktools.h NOCLASSES
src/support/forkedcontr.h src/support/ForkedcallsController.h ForkedcallsController
src/support/os.h src/support/os.h NOCLASSES
src/support/FileMonitor.h src/support/FileMonitor.h FileMonitor
src/support/copied_ptr.h src/support/copied_ptr.h copied_ptr
src/support/translator.h src/support/Translator.h Translator
src/support/filetools.C src/support/filetools.cpp NOCLASSES
src/support/unlink.C src/support/unlink.cpp NOCLASSES
src/support/os_win32.C src/support/os_win32.cpp GetFolderPath
src/support/lstrings.C src/support/lstrings.cpp NOCLASSES
src/support/qstring_helpers.C src/support/qstring_helpers.cpp NOCLASSES
src/support/getcwd.C src/support/getcwd.cpp NOCLASSES
src/support/systemcall.C src/support/Systemcall.cpp Systemcall
src/support/lyxalgo.h src/support/lyxalgo.h NOCLASSES
src/support/filefilterlist.h src/support/FileFilterList.h ['FileFilterList', 'Filter']
src/support/unicode.C src/support/unicode.cpp IconvProcessor
src/support/userinfo.C src/support/userinfo.cpp NOCLASSES
src/support/lyxtime.C src/support/lyxtime.cpp NOCLASSES
src/support/kill.C src/support/kill.cpp NOCLASSES
src/support/docstring.C src/support/docstring.cpp to_local8bit_failure
src/support/os_cygwin.C src/support/os_cygwin.cpp NOCLASSES
src/support/lyxsum.C src/support/lyxsum.cpp NOCLASSES
src/support/environment.C src/support/environment.cpp NOCLASSES
src/support/filetools.h src/support/filetools.h NOCLASSES
src/support/textutils.C src/support/textutils.cpp NOCLASSES
src/support/mkdir.C src/support/mkdir.cpp NOCLASSES
src/support/forkedcall.C src/support/Forkedcall.cpp ['ForkedProcess', 'Forkedcall']
src/support/tempname.C src/support/tempname.cpp NOCLASSES
src/support/os_win32.h src/support/os_win32.h GetFolderPath
src/support/types.h src/support/types.h NOCLASSES
src/support/lstrings.h src/support/lstrings.h NOCLASSES
src/support/forkedcallqueue.C src/support/ForkedCallQueue.cpp ForkedCallQueue
src/support/qstring_helpers.h src/support/qstring_helpers.h NOCLASSES
src/support/convert.C src/support/convert.cpp NOCLASSES
src/support/filename.C src/support/FileName.cpp ['FileName', 'DocFileName']
src/support/tests/convert.C src/support/tests/convert.cpp NOCLASSES
src/support/tests/filetools.C src/support/tests/filetools.cpp NOCLASSES
src/support/tests/lstrings.C src/support/tests/lstrings.cpp NOCLASSES
src/support/tests/boost.C src/support/tests/boost.cpp NOCLASSES
src/support/docstream.C src/support/docstream.cpp ['iconv_codecvt_facet_exception', 'idocfstream', 'odocfstream']
src/support/std_istream.h src/support/std_istream.h NOCLASSES
src/support/systemcall.h src/support/Systemcall.h Systemcall
src/support/chdir.C src/support/chdir.cpp NOCLASSES
src/support/std_ostream.h src/support/std_ostream.h NOCLASSES
src/support/unicode.h src/support/unicode.h IconvProcessor
src/support/path.C src/support/Path.cpp Path
src/support/fs_extras.C src/support/fs_extras.cpp NOCLASSES
src/support/userinfo.h src/support/userinfo.h NOCLASSES
src/support/lyxtime.h src/support/lyxtime.h NOCLASSES
src/support/docstring.h src/support/docstring.h to_local8bit_failure
src/support/debugstream.h src/support/debugstream.h basic_debugstream
src/support/environment.h src/support/environment.h NOCLASSES
src/support/textutils.h src/support/textutils.h NOCLASSES
src/support/forkedcall.h src/support/Forkedcall.h ['ForkedProcess', 'Forkedcall']
src/support/socktools.C src/support/socktools.cpp NOCLASSES
src/support/forkedcallqueue.h src/support/ForkedCallQueue.h ForkedCallQueue
src/support/forkedcontr.C src/support/ForkedcallsController.cpp ForkedcallsController
src/support/os.C src/support/os.cpp NOCLASSES
src/support/convert.h src/support/convert.h NOCLASSES
src/support/filename.h src/support/FileName.h ['FileName', 'DocFileName']
src/support/docstream.h src/support/docstream.h ['iconv_codecvt_facet_exception', 'idocfstream', 'odocfstream']
src/support/FileMonitor.C src/support/FileMonitor.cpp FileMonitor
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@18024 a592a061-630c-0410-9148-cb99ea01b6c8
2007-04-26 05:12:52 +00:00
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#include "support/FileName.h"
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2020-11-26 20:10:45 +00:00
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#include "support/lyxlib.h"
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2002-07-05 21:24:15 +00:00
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2007-12-12 10:16:00 +00:00
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using namespace std;
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2007-12-12 18:57:56 +00:00
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using namespace lyx::support;
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2002-07-05 21:24:15 +00:00
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2003-07-04 08:23:23 +00:00
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namespace lyx {
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namespace graphics {
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2002-07-05 21:24:15 +00:00
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2017-05-28 11:25:53 +00:00
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class PreviewImage::Impl {
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2005-01-19 15:03:31 +00:00
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public:
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2002-07-05 21:24:15 +00:00
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///
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Impl(PreviewImage & p, PreviewLoader & l,
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2006-11-26 21:30:39 +00:00
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string const & s, FileName const & f, double af);
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2002-07-05 21:24:15 +00:00
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///
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2002-07-06 12:38:44 +00:00
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~Impl();
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///
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2020-11-25 23:11:07 +00:00
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Image const * image() const;
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2002-07-05 21:24:15 +00:00
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///
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void statusChanged();
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///
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PreviewImage const & parent_;
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///
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PreviewLoader & ploader_;
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///
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2002-07-15 11:08:46 +00:00
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Loader iloader_;
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2002-07-05 21:24:15 +00:00
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///
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string const snippet_;
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///
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double const ascent_frac_;
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};
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PreviewImage::PreviewImage(PreviewLoader & l,
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string const & s,
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2006-11-26 21:30:39 +00:00
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FileName const & f,
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2002-07-05 21:24:15 +00:00
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double af)
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: pimpl_(new Impl(*this, l, s, f, af))
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{}
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PreviewImage::~PreviewImage()
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2007-11-21 23:47:47 +00:00
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{
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delete pimpl_;
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}
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2002-07-05 21:24:15 +00:00
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string const & PreviewImage::snippet() const
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{
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return pimpl_->snippet_;
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}
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2002-07-15 11:08:46 +00:00
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2010-07-21 13:19:52 +00:00
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support::FileName const & PreviewImage::filename() const
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{
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return pimpl_->iloader_.filename();
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}
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2007-11-23 22:57:11 +00:00
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Dimension PreviewImage::dim() const
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2002-07-05 21:24:15 +00:00
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{
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2007-11-23 22:57:11 +00:00
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Dimension dim;
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2002-07-15 11:08:46 +00:00
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Image const * const image = pimpl_->iloader_.image();
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2002-07-05 21:24:15 +00:00
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if (!image)
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2007-11-23 22:57:11 +00:00
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return dim;
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2002-07-05 21:24:15 +00:00
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2020-11-26 20:10:45 +00:00
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dim.asc = support::iround(pimpl_->ascent_frac_ * double(image->height()));
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2007-11-23 22:57:11 +00:00
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dim.des = image->height() - dim.asc;
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dim.wid = image->width();
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return dim;
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2002-07-05 21:24:15 +00:00
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}
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2003-02-26 11:41:23 +00:00
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Image const * PreviewImage::image() const
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2002-07-05 21:24:15 +00:00
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{
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2003-02-26 11:41:23 +00:00
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return pimpl_->image();
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2002-07-05 21:24:15 +00:00
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}
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2016-11-05 00:00:44 +00:00
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PreviewLoader & PreviewImage::previewLoader() const
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{
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return pimpl_->ploader_;
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}
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2017-05-28 11:25:53 +00:00
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PreviewImage::Impl::Impl(PreviewImage & p, PreviewLoader & l, string const & s,
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FileName const & bf, double af)
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2016-11-05 00:00:44 +00:00
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: parent_(p), ploader_(l), iloader_(l.buffer().fileName(), bf),
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2002-07-05 21:24:15 +00:00
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snippet_(s), ascent_frac_(af)
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2002-07-15 11:08:46 +00:00
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{
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2014-10-18 13:30:58 +00:00
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iloader_.setDisplayPixelRatio(l.displayPixelRatio());
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2017-05-28 11:25:53 +00:00
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// This connection is destroyed at the same time as this.
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iloader_.connect([this](){ statusChanged(); });
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2002-07-15 11:08:46 +00:00
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}
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2002-07-05 21:24:15 +00:00
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2002-07-06 12:38:44 +00:00
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PreviewImage::Impl::~Impl()
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{
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2015-07-22 16:08:20 +00:00
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// If these images are generated for a clone, then that may be
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// because we are previewing. We therefore do not want to delete
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// them when this Buffer is destroyed.
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2015-07-22 15:04:35 +00:00
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if (!ploader_.buffer().isClone())
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iloader_.filename().removeFile();
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2002-07-06 12:38:44 +00:00
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}
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2020-11-25 23:11:07 +00:00
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Image const * PreviewImage::Impl::image() const
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2002-07-05 21:24:15 +00:00
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{
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2002-07-15 11:08:46 +00:00
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if (iloader_.status() == WaitingToLoad)
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2003-02-26 11:41:23 +00:00
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iloader_.startLoading();
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2002-07-05 21:24:15 +00:00
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2002-07-15 11:08:46 +00:00
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return iloader_.image();
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2002-07-05 21:24:15 +00:00
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}
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void PreviewImage::Impl::statusChanged()
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{
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2002-07-15 11:08:46 +00:00
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switch (iloader_.status()) {
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2002-07-05 21:24:15 +00:00
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case WaitingToLoad:
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case Loading:
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case Converting:
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case Loaded:
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case ScalingEtc:
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break;
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case ErrorNoFile:
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case ErrorConverting:
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case ErrorLoading:
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case ErrorGeneratingPixmap:
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case ErrorUnknown:
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2007-11-28 09:01:49 +00:00
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//iloader_.filename().removeFile();
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2002-07-05 21:24:15 +00:00
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ploader_.remove(snippet_);
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2011-02-15 17:11:03 +00:00
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// FIXME: We need to return here, because PreviewLoader::remove
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// removes the preview image from the cache, which deletes this
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// object, so we should not try to do anything here.
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return;
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2002-07-05 21:24:15 +00:00
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case Ready:
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2007-11-28 09:01:49 +00:00
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iloader_.filename().removeFile();
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2002-07-05 21:24:15 +00:00
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break;
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}
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2003-10-22 22:26:47 +00:00
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ploader_.emitSignal(parent_);
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2002-07-05 21:24:15 +00:00
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}
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2003-07-04 08:23:23 +00:00
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} // namespace graphics
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} // namespace lyx
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