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klfdisplaylabel.h
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1/***************************************************************************
2 * file klfdisplaylabel.h
3 * This file is part of the KLatexFormula Project.
4 * Copyright (C) 2011 by Philippe Faist
5 * philippe.faist at bluewin.ch
6 * *
7 * This program is free software; you can redistribute it and/or modify *
8 * it under the terms of the GNU General Public License as published by *
9 * the Free Software Foundation; either version 2 of the License, or *
10 * (at your option) any later version. *
11 * *
12 * This program is distributed in the hope that it will be useful, *
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15 * GNU General Public License for more details. *
16 * *
17 * You should have received a copy of the GNU General Public License *
18 * along with this program; if not, write to the *
19 * Free Software Foundation, Inc., *
20 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
21 ***************************************************************************/
22/* $Id$ */
23
24#ifndef KLFDISPLAYLABEL_H
25#define KLFDISPLAYLABEL_H
26
27#include <QLabel>
28#include <QPicture>
29#include <QTemporaryFile>
30
31#include <klfdefs.h>
32
46class KLF_EXPORT KLFDisplayLabel : public QLabel
47{
48 Q_OBJECT
49
51
53 Q_PROPERTY(bool glowEffect READ glowEffect WRITE setGlowEffect) ;
56 Q_PROPERTY(bool labelEnabled READ labelEnabled WRITE setLabelEnabled) ;
57public:
58 KLFDisplayLabel(QWidget *parent);
59 virtual ~KLFDisplayLabel();
60
61 enum DisplayState { Clear = 0, Ok, Error };
62 virtual DisplayState currentDisplayState() const { return pDisplayState; }
63
70 virtual QSize labelSize() const { return size(); }
71
72 virtual bool enableToolTipPreview() const { return pEnableToolTipPreview; }
73
74 virtual QString bigPreviewText() const { return _bigPreviewText; }
75
76 inline bool glowEffect() const { return pGE; }
77 inline QColor glowEffectColor() const { return pGEcolor; }
78 inline int glowEffectRadius() const { return pGEradius; }
79
80 inline bool labelEnabled() const { return pLabelEnabled; }
81
82signals:
83 void labelDrag();
84
85public slots:
86 virtual void setEnableToolTipPreview(bool enable) { pEnableToolTipPreview = enable; display_state(pDisplayState); }
87
88 virtual void displayClear();
89 virtual void display(QImage displayimg, QImage tooltipimage, bool labelenabled = true);
90 virtual void displayError(bool labelenabled = false)
91 { displayError(QString(), labelenabled); }
92 virtual void displayError(const QString& errorMessage, bool labelenabled = false);
93
94 void setGlowEffect(bool on) { pGE = on; display_state(pDisplayState); }
95 void setGlowEffectColor(const QColor& color) { pGEcolor = color; display_state(pDisplayState); }
96 void setGlowEffectRadius(int r) { pGEradius = r; display_state(pDisplayState); }
97
98 void setLabelEnabled(bool enabled) { pLabelEnabled = enabled; display_state(pDisplayState); }
99
100protected:
101 virtual void mouseMoveEvent(QMouseEvent *e);
102
103private:
104
105 QPicture calc_display_picture();
106 void display_state(DisplayState state);
107
108 DisplayState pDisplayState;
109 QString pDisplayError;
110 QImage pDisplayImage;
111 QImage pDisplayTooltip;
112
113 QSize pLabelFixedSize;
114 bool pEnableToolTipPreview;
115 QTemporaryFile *mToolTipFile;
116
117 QPalette pDefaultPalette;
118 QPalette pErrorPalette;
119
120 QString _bigPreviewText;
121
122 bool pGE;
123 QColor pGEcolor;
124 int pGEradius;
125
126 void set_error(bool error_on);
127
128 bool pLabelEnabled;
129};
130
131
132
133
134
135
136
137#endif
int glowEffectRadius() const
virtual void setEnableToolTipPreview(bool enable)
void setGlowEffectColor(const QColor &color)
bool labelEnabled() const
bool glowEffect() const
virtual void displayError(bool labelenabled=false)
void setGlowEffect(bool on)
QColor glowEffectColor() const
virtual QSize labelSize() const
maximum pixmap size we can display
virtual DisplayState currentDisplayState() const
KLFDisplayLabel(QWidget *parent)
void setLabelEnabled(bool enabled)
virtual bool enableToolTipPreview() const
void setGlowEffectRadius(int r)
virtual QString bigPreviewText() const
Base declarations for klatexformula and some utilities.
#define KLF_EXPORT
Definition klfdefs.h:41

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