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
|
/***************************************************************************
* Copyright (C) 2007, 2008, 2009, 2010 by Glad Deschrijver *
* <glad.deschrijver@gmail.com> *
* *
* 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, see <http://www.gnu.org/licenses/>. *
***************************************************************************/
#ifndef KTIKZ_TIKZPREVIEW_H
#define KTIKZ_TIKZPREVIEW_H
#include <QGraphicsView>
class QComboBox;
class QImage;
class QLabel;
class QToolBar;
namespace Poppler
{
class Document;
}
class Action;
class SelectAction;
class TikzPreviewThread;
class TikzPreview : public QGraphicsView
{
Q_OBJECT
public:
TikzPreview(QWidget *parent = 0);
~TikzPreview();
virtual QSize sizeHint() const;
QList<QAction*> actions();
QToolBar *toolBar();
QPixmap pixmap() const;
void emptyPreview();
void setProcessRunning(bool isRunning);
public slots:
void showPreview(const QImage &tikzImage);
void pixmapUpdated(Poppler::Document *tikzPdfDoc);
void showErrorMessage(const QString &message);
protected:
void contextMenuEvent(QContextMenuEvent *event);
void paintEvent(QPaintEvent *event);
void wheelEvent(QWheelEvent *event);
private slots:
void setZoomFactor(const QString &zoomFactorText);
void zoomIn();
void zoomOut();
void showPreviousPage();
void showNextPage();
private:
void createInformationLabel();
void centerView();
void setZoomFactor(qreal zoomFactor);
void createActions();
void showPdfPage();
void centerInfoLabel();
void setInfoLabelText(const QString &message, bool isPixmapVisible);
QString formatZoomFactor(qreal zoomFactor) const;
void createZoomFactorList(qreal newZoomFactor = 0);
QGraphicsScene *m_tikzScene;
QGraphicsPixmapItem *m_tikzPixmapItem;
TikzPreviewThread *m_tikzPreviewThread;
// QPoint m_centerPoint;
bool m_processRunning;
QAction *m_zoomInAction;
QAction *m_zoomOutAction;
SelectAction *m_zoomToAction;
QAction *m_pageSeparator;
Action *m_previousPageAction;
Action *m_nextPageAction;
QFrame *m_infoWidget;
QGraphicsItem *m_infoProxyWidget;
QLabel *m_infoPixmapLabel;
QLabel *m_infoLabel;
bool m_infoWidgetAdded;
Poppler::Document *m_tikzPdfDoc;
int m_currentPage;
qreal m_zoomFactor;
qreal m_oldZoomFactor;
bool m_hasZoomed;
};
#endif
|
