Mercurial > projects > qtd
annotate examples/draganddrop/dropsite/droparea.d @ 393:1049b01aebd2
Fixed generator segfaults on OS X 10.6.
Regarding the change to dgenerator.cpp, I am not actually sure if 0 is the correct value to pass, but it seems to work and the code which had been there before was just plain incorrect ? it read past the list boundaries.
author | David Nadlinger <code@klickverbot.at> |
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date | Sat, 28 Aug 2010 02:55:55 +0200 |
parents | a032df77b6ab |
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rev | line source |
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19 | 1 /**************************************************************************** |
2 ** | |
3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). | |
4 ** Contact: Qt Software Information (qt-info@nokia.com) | |
5 ** | |
6 ** This file is part of the examples of the Qt Toolkit. | |
7 ** | |
8 ** $QT_BEGIN_LICENSE:LGPL$ | |
9 ** Commercial Usage | |
10 ** Licensees holding valid Qt Commercial licenses may use this file in | |
11 ** accordance with the Qt Commercial License Agreement provided with the | |
12 ** Software or, alternatively, in accordance with the terms contained in | |
13 ** a written agreement between you and Nokia. | |
14 ** | |
15 ** GNU Lesser General Public License Usage | |
16 ** Alternatively, this file may be used under the terms of the GNU Lesser | |
17 ** General Public License version 2.1 as published by the Free Software | |
18 ** Foundation and appearing in the file LICENSE.LGPL included in the | |
19 ** packaging of this file. Please review the following information to | |
20 ** ensure the GNU Lesser General Public License version 2.1 requirements | |
21 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. | |
22 ** | |
23 ** In addition, as a special exception, Nokia gives you certain | |
24 ** additional rights. These rights are described in the Nokia Qt LGPL | |
25 ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this | |
26 ** package. | |
27 ** | |
28 ** GNU General Public License Usage | |
29 ** Alternatively, this file may be used under the terms of the GNU | |
30 ** General Public License version 3.0 as published by the Free Software | |
31 ** Foundation and appearing in the file LICENSE.GPL included in the | |
32 ** packaging of this file. Please review the following information to | |
33 ** ensure the GNU General Public License version 3.0 requirements will be | |
34 ** met: http://www.gnu.org/copyleft/gpl.html. | |
35 ** | |
36 ** If you are unsure which license is appropriate for your use, please | |
37 ** contact the sales department at qt-sales@nokia.com. | |
38 ** $QT_END_LICENSE$ | |
39 ** | |
40 ****************************************************************************/ | |
41 | |
42 module droparea; | |
43 | |
44 import qt.gui.QLabel; | |
45 | |
46 class DropArea : public QLabel | |
47 { | |
48 public: | |
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49 this(QWidget parent = null) |
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50 { |
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51 super(parent); |
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52 |
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53 setMinimumSize(200, 200); |
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54 setFrameStyle(QFrame.Sunken | QFrame.StyledPanel); |
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55 setAlignment(Qt.AlignCenter); |
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56 setAcceptDrops(true); |
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57 setAutoFillBackground(true); |
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58 clearArea(); |
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59 } |
19 | 60 |
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61 void slot_clearArea() |
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62 { |
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63 setText(tr("<drop content>")); |
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64 setBackgroundRole(QPalette.Dark); |
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65 |
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66 changed(null); |
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67 } |
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68 |
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69 final void signal_changed(QMimeData); |
19 | 70 |
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71 protected: |
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72 void dragEnterEvent(QDragEnterEvent event) |
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73 { |
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74 setText(tr("<drop content>")); |
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75 setBackgroundRole(QPalette.Highlight); |
19 | 76 |
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77 event.acceptProposedAction(); |
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78 changed(event.mimeData); |
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79 } |
21 | 80 |
372
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81 void dragMoveEvent(QDragMoveEvent event) |
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82 { |
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83 event.acceptProposedAction(); |
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84 } |
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85 |
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86 void dragLeaveEvent(QDragLeaveEvent event) |
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87 { |
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88 clearArea(); |
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89 event.accept(); |
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90 } |
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91 |
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92 void dropEvent(QDropEvent event) |
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93 { |
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94 QMimeData mimeData = event.mimeData(); |
19 | 95 |
372
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96 if (mimeData.hasImage()) { |
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97 setPixmap(new QPixmap(mimeData.imageData)); |
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98 } else if (mimeData.hasHtml()) { |
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99 setText(mimeData.html()); |
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100 setTextFormat(Qt.RichText); |
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101 } else if (mimeData.hasText()) { |
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102 setText(mimeData.text()); |
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103 setTextFormat(Qt.PlainText); |
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104 } else if (mimeData.hasUrls()) { |
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105 auto urlList = mimeData.urls(); |
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106 string text; |
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107 for (int i = 0; i < urlList.length && i < 32; ++i) { |
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108 text ~= urlList[i].path() ~ "\n"; |
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109 } |
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110 setText(text); |
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111 } else { |
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112 setText(tr("Cannot display data")); |
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113 } |
19 | 114 |
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115 setBackgroundRole(QPalette.Dark); |
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116 event.acceptProposedAction(); |
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117 } |
19 | 118 |
119 private: | |
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120 QLabel label; |
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121 |
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122 mixin Q_OBJECT; |
19 | 123 } |
124 |