Developer Documentation

codeeditor.hh
1 /*===========================================================================*\
2 * *
3 * OpenFlipper *
4 * Copyright (c) 2001-2015, RWTH-Aachen University *
5 * Department of Computer Graphics and Multimedia *
6 * All rights reserved. *
7 * www.openflipper.org *
8 * *
9 *---------------------------------------------------------------------------*
10 * This file is part of OpenFlipper. *
11 *---------------------------------------------------------------------------*
12 * *
13 * Redistribution and use in source and binary forms, with or without *
14 * modification, are permitted provided that the following conditions *
15 * are met: *
16 * *
17 * 1. Redistributions of source code must retain the above copyright notice, *
18 * this list of conditions and the following disclaimer. *
19 * *
20 * 2. Redistributions in binary form must reproduce the above copyright *
21 * notice, this list of conditions and the following disclaimer in the *
22 * documentation and/or other materials provided with the distribution. *
23 * *
24 * 3. Neither the name of the copyright holder nor the names of its *
25 * contributors may be used to endorse or promote products derived from *
26 * this software without specific prior written permission. *
27 * *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS *
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
31 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
32 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, *
33 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, *
34 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR *
35 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
36 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING *
37 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS *
38 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
39 * *
40 \*===========================================================================*/
41
42
43
44 #ifndef CODEEDITORWIDGET_HH
45 #define CODEEDITORWIDGET_HH
46
47 #include <QPlainTextEdit>
48 #include <QObject>
49
50 class QPaintEvent;
51 class QResizeEvent;
52 class QSize;
53 class QWidget;
54
55 class LineNumberArea;
56
57
58 class CodeEditorWidget : public QPlainTextEdit
59 {
60 Q_OBJECT
61
62 public:
63 explicit CodeEditorWidget(QWidget *parent = 0);
64
65 void lineNumberAreaPaintEvent(QPaintEvent *event);
66 int lineNumberAreaWidth();
67
68 protected:
69 void resizeEvent(QResizeEvent *event);
70
71 public:
72 void highLightErrorLine(int _line);
73
74 private slots:
75 void updateLineNumberAreaWidth(int newBlockCount);
76 void highlightCurrentLine();
77 void updateLineNumberArea(const QRect &, int);
78
79 private:
80 QWidget *lineNumberArea;
81 };
82
83
84 class LineNumberArea : public QWidget
85 {
86 public:
87 explicit LineNumberArea(CodeEditorWidget *editor) : QWidget(editor) {
88 codeEditor = editor;
89 }
90
91 QSize sizeHint() const {
92 return QSize(codeEditor->lineNumberAreaWidth(), 0);
93 }
94
95 protected:
96 void paintEvent(QPaintEvent *event) {
97 codeEditor->lineNumberAreaPaintEvent(event);
98 }
99
100 private:
101 CodeEditorWidget *codeEditor;
102 };
103
104
105 #endif
LineNumberArea
Definition: codeeditor.hh:84
CodeEditorWidget
Definition: codeeditor.hh:58