libklatexformula4-dev 4.0.0-3 / usr / include / klfbackend / klflatexpreviewthread.h

This file is indexed.

/usr/include/klfbackend/klflatexpreviewthread.h is in libklatexformula4-dev 4.0.0-3.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below. 

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
/***************************************************************************
 *   file klflatexpreviewthread.h
 *   This file is part of the KLatexFormula Project.
 *   Copyright (C) 2011 by Philippe Faist
 *   philippe.faist at bluewin.ch
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
/* $Id: klflatexpreviewthread.h 953 2016-12-27 00:13:10Z phfaist $ */

#ifndef klflatexpreviewthread_H__
#define klflatexpreviewthread_H__

#include <QThread>
#include <QMutex>
#include <QWaitCondition>

#include <klfdefs.h>
#include <klfbackend.h>


struct KLFLatexPreviewThreadPrivate;

class KLF_EXPORT KLFLatexPreviewHandler : public QObject
{
  Q_OBJECT
public:
  KLFLatexPreviewHandler(QObject * parent = NULL) ;
  virtual ~KLFLatexPreviewHandler();

public slots:
  /** Called whenever there is no preview to generate (input latex string empty) */
  virtual void latexPreviewReset();

  /** Called when a preview was successfully generated (i.e., <tt>output.status==0</tt>). The full
   * KLFBackend::klfOutput object is given here.
   *
   * Note that this method is called before the other latexPreview***Available() functions.
   */
  virtual void latexOutputAvailable(const KLFBackend::klfOutput& output) ;
  /** Called when a preview was successfully generated. All three images are given here (preview
   * size, large preview size, original image) */
  virtual void latexPreviewAvailable(const QImage& preview, const QImage& largePreview, const QImage& fullPreview);
  /** Called when a preview was successfully generated. Preview Size image. See also
   * \ref setPreviewSize(). */
  virtual void latexPreviewImageAvailable(const QImage& preview);
  /** Called when a preview was successfully generated. Large preview size image. See also
   * \ref setLargePreviewSize(). */
  virtual void latexPreviewLargeImageAvailable(const QImage& largePreview);
  /** Called when a preview was successfully generated. The original image is given. */
  virtual void latexPreviewFullImageAvailable(const QImage& fullPreview);

  /** Called when generation of the latex preview raised an error. See the error codes
   * defined in klfbackend.h */
  virtual void latexPreviewError(const QString& errorString, int errorCode);
};



class KLF_EXPORT KLFLatexPreviewThread : public QThread
{
  Q_OBJECT

  Q_PROPERTY(QSize previewSize READ previewSize WRITE setPreviewSize) ;
  Q_PROPERTY(QSize largePreviewSize READ largePreviewSize WRITE setLargePreviewSize) ;

public:
  KLFLatexPreviewThread(QObject *parent = NULL);
  virtual ~KLFLatexPreviewThread();

  typedef qint64 TaskId;

  QSize previewSize() const;
  QSize largePreviewSize() const;
  void getPreviewSizes(QSize *previewsize, QSize *largepreviewsize) const;

  void setPreviewSize(const QSize& previewSize);
  void setLargePreviewSize(const QSize& largePreviewSize);
  void setPreviewSizes(const QSize& previewsize, const QSize& largepreviewsize) const;

  void cancelTask(TaskId task);
  void clearPendingTasks();

  void start(Priority priority = InheritPriority);
  void stop();

public slots:

  TaskId submitPreviewTask(const KLFBackend::klfInput& input,
			   const KLFBackend::klfSettings& settings,
			   KLFLatexPreviewHandler * outputhandler,
			   const QSize& previewSize, const QSize& largePreviewSize);
  TaskId submitPreviewTask(const KLFBackend::klfInput& input,
			   const KLFBackend::klfSettings& settings,
			   KLFLatexPreviewHandler * outputhandler);
  TaskId clearAndSubmitPreviewTask(const KLFBackend::klfInput& input,
				   const KLFBackend::klfSettings& settings,
				   KLFLatexPreviewHandler * outputhandler,
				   const QSize& previewSize, const QSize& largePreviewSize);
  TaskId clearAndSubmitPreviewTask(const KLFBackend::klfInput& input,
				   const KLFBackend::klfSettings& settings,
				   KLFLatexPreviewHandler * outputhandler); 
  TaskId replaceSubmitPreviewTask(TaskId replaceId,
				  const KLFBackend::klfInput& input,
				  const KLFBackend::klfSettings& settings,
				  KLFLatexPreviewHandler * outputhandler,
				  const QSize& previewSize, const QSize& largePreviewSize);
  TaskId replaceSubmitPreviewTask(TaskId replaceId,
				  const KLFBackend::klfInput& input,
				  const KLFBackend::klfSettings& settings,
				  KLFLatexPreviewHandler * outputhandler); 

protected:
  virtual void run();

private:
  KLF_DECLARE_PRIVATE(KLFLatexPreviewThread) ;

  QMutex _startupmutex;
  QWaitCondition _startupWaitCondition;
};


/*
class KLF_EXPORT KLFLatexPreviewThread : public QThread
{
  Q_OBJECT

  Q_PROPERTY(QSize previewSize READ previewSize WRITE setPreviewSize) ;
  Q_PROPERTY(QSize largePreviewSize READ largePreviewSize WRITE setLargePreviewSize) ;

public:
  KLFLatexPreviewThread(QObject *parent = NULL);
  virtual ~KLFLatexPreviewThread();

  struct QueuedTask
  {
    QueuedTask() : isrunning(false), isfinished(false) { }

    inline int ref() { return refcount.ref(); }
    inline int deref() { return refcount.deref(); }
  private:
    QAtomicInt refcount;

    friend class KLFLatexPreviewThread;
    friend class KLFLatexPreviewThreadPrivate;
    bool isrunning;
    bool isfinished;
  };

  QSize previewSize() const;
  QSize largePreviewSize() const;

  KLFRefPtr<QueuedTask> submitPreviewTask(const KLFBackend::klfInput& input,
					  const KLFBackend::klfSettings& settings,
					  KLFLatexPreviewHandler * outputhandler,
 					  const QSize& previewSize, const QSize& largePreviewSize);
  KLFRefPtr<QueuedTask> submitPreviewTask(const KLFBackend::klfInput& input,
					  const KLFBackend::klfSettings& settings,
					  KLFLatexPreviewHandler * outputhandler);
  KLFRefPtr<QueuedTask> clearAndSubmitPreviewTask(const KLFBackend::klfInput& input,
						  const KLFBackend::klfSettings& settings,
						  KLFLatexPreviewHandler * outputhandler,
						  const QSize& previewSize, const QSize& largePreviewSize);
  KLFRefPtr<QueuedTask> clearAndSubmitPreviewTask(const KLFBackend::klfInput& input,
						  const KLFBackend::klfSettings& settings,
						  KLFLatexPreviewHandler * outputhandler);
  bool cancelTask(KLFRefPtr<QueuedTask> task);
  void clearPendingTasks();

  bool taskIsNew(KLFRefPtr<QueuedTask> task);
  bool taskIsRunning(KLFRefPtr<QueuedTask> task);
  bool taskIsFinished(KLFRefPtr<QueuedTask> task);

  void stop();

  void setPreviewSize(const QSize& previewSize);
  void setLargePreviewSize(const QSize& largePreviewSize);

protected:
  virtual void run();

private:
  KLF_DECLARE_PRIVATE(KLFLatexPreviewThread) ;

  QMutex _mutex;
};
*/


struct KLFContLatexPreviewPrivate;

/**
 * A helper that runs in a different thread that generates previews in real-time as user types text,
 * without blocking the GUI.
 *
 * .......... UPDATE DOC FOR NEW THREAD OBJECT STRUCTURE ........
 *
 * \note returns (max.) three different image sizes set by setPreviewSize(), setLargePreviewSize() and
 *   the original image size. Setting an invalid size disables image generation of that particular preview
 *   size (might save resources by not resizing the image to that size).
 */
class KLF_EXPORT KLFContLatexPreview : public QObject
{
  Q_OBJECT

  Q_PROPERTY(QSize previewSize READ previewSize WRITE setPreviewSize) ;
  Q_PROPERTY(QSize largePreviewSize READ largePreviewSize WRITE setLargePreviewSize) ;

public:
  KLFContLatexPreview(KLFLatexPreviewThread * thread = NULL);
  virtual ~KLFContLatexPreview();

  KLFBackend::klfInput intput() const;
  KLFBackend::klfSettings settings() const;

  QSize previewSize() const;
  QSize largePreviewSize() const;

  void setThread(KLFLatexPreviewThread * thread);

signals:
  /** Emitted whenever there is no preview to generate (input latex string empty) */
  void previewReset();

  /** Emitted when a preview was successfully generated (i.e., <tt>output.status==0</tt>). The full
   * KLFBackend::klfOutput object is given here.
   *
   * Note that this signal is emitted before the other preview***Available() functions.
   */
  void outputAvailable(const KLFBackend::klfOutput& output) ;
  /** Emitted when a preview was successfully generated. All three images are given here (preview
   * size, large preview size, original image) */
  void previewAvailable(const QImage& preview, const QImage& largePreview, const QImage& fullPreview);
  /** Emitted when a preview was successfully generated. Preview Size image. See also
   * \ref setPreviewSize(). */
  void previewImageAvailable(const QImage& preview);
  /** Emitted when a preview was successfully generated. Large preview size image. See also
   * \ref setLargePreviewSize(). */
  void previewLargeImageAvailable(const QImage& largePreview);
  /** Emitted when a preview was successfully generated. The original image is given. */
  void previewFullImageAvailable(const QImage& fullPreview);

  /** Emitted when generation of the latex preview raised an error. See the error codes
   * defined in klfbackend.h */
  void previewError(const QString& errorString, int errorCode);

  /** Is emitted whenever there currently is a LaTeX formula compiling */
  void compiling(bool isCompiling);

public slots:
  /** \returns TRUE if the input was set, FALSE if current input is already equal to \c input.
   * The thread will then take care to generate the corresponding preview and emit the previewAvailable() etc.
   * signals. */
  bool setInput(const KLFBackend::klfInput& input);
  /** \returns TRUE if the settings were set, FALSE if current settings are already equal to \c settings */
  bool setSettings(const KLFBackend::klfSettings& settings, bool disableExtraFormats = true);
  /** \returns TRUE if the previewSize was set, FALSE if current preview size is already equal to
   * \c previewSize */
  bool setPreviewSize(const QSize& previewSize);
  /** \returns TRUE if the largePreviewSize was set, FALSE if current large preview size is already equal to
   * \c largePreviewSize */
  bool setLargePreviewSize(const QSize& largePreviewSize);

private:
  KLF_DECLARE_PRIVATE(KLFContLatexPreview) ;
};



#endif

APT Browse - Built by Thomas Orozco.