annotate layout_widget.cpp @ 9:0d7875c26974

layout designer: hints on widget placement during drag and drop
author Goffi <goffi@goffi.org>
date Fri, 26 Aug 2011 12:15:21 +0200
parents c63d67895cbe
children
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1 /*
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2 Bellaciao: a Salut à Toi frontend
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3 Copyright (C) 2011 Jérôme Poisson (goffi@goffi.org)
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4
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5 This program is free software: you can redistribute it and/or modify
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6 it under the terms of the GNU Affero General Public License as published by
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7 the Free Software Foundation, either version 3 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU Affero General Public License for more details.
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14
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15 You should have received a copy of the GNU Affero General Public License
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16 along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 */
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18
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19 #include "layout_widget.h"
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20
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21 WidgetProperty::WidgetProperty(const QString& name, const QString& tooltip)
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22 : m_name(name), m_type(NONE)
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23 {
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24 }
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25
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26 WidgetPropertyBool::WidgetPropertyBool(const QString& name, bool checked, const QString& tooltip)
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27 : WidgetProperty(name, tooltip), m_checked(checked)
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28 {
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29 m_type = BOOL;
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30 }
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31
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32 LayoutWidget::LayoutWidget(const QString& name, const QString& icon)
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33 : m_name(name), m_icon(icon)
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34 {
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35
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36 }
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37
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38 LayoutWidget::~LayoutWidget()
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39 {
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40
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41 }
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42
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43 const QString& LayoutWidget::getName() const
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44 {
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45 return m_name;
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46 }
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47
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48 LayoutWidgetModel::LayoutWidgetModel(QObject* parent)
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49 : QAbstractListModel(parent)
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50 {
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51 }
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52
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53 LayoutWidgetModel::~LayoutWidgetModel()
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54 {
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55 while (!m_layout_widgets.isEmpty())
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56 delete m_layout_widgets.takeFirst();
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57 }
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58
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59 int LayoutWidgetModel::rowCount(const QModelIndex &parent) const
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60 {
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61 return m_layout_widgets.size();
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62 }
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63
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64 QVariant LayoutWidgetModel::data(const QModelIndex &index, int role) const
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65 {
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66 if (!index.isValid())
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67 return QVariant();
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68
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69 if (index.row() >= m_layout_widgets.size())
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70 return QVariant();
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71
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72 if (role == Qt::DisplayRole)
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73 return m_layout_widgets[index.row()]->getName();
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74
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75 return QVariant();
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76 }
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77
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78 Qt::ItemFlags LayoutWidgetModel::flags (const QModelIndex& index) const
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79 {
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80 Qt::ItemFlags default_flags = QAbstractListModel::flags(index);
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81
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82 if (index.isValid())
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83 return default_flags | Qt::ItemIsDragEnabled;
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84 return default_flags;
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85 }
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86
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87 QStringList LayoutWidgetModel::mimeTypes() const
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88 {
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89 QStringList types;
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90 types << LAYOUT_WIDGET_MIME;
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91 return types;
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92 }
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93
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94 QMimeData* LayoutWidgetModel::mimeData (const QModelIndexList& indexes ) const
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95 {
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96 QMimeData *mimeData = new QMimeData();
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97 QByteArray encodedData;
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98
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99 QDataStream stream(&encodedData, QIODevice::WriteOnly);
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100
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101 foreach (const QModelIndex &index, indexes) {
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102 if (index.isValid()) {
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103 QString text = m_layout_widgets[index.row()]->getName();
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104 stream << text;
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105 }
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106 }
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107
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108 mimeData->setData(LAYOUT_WIDGET_MIME, encodedData);
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109 return mimeData;
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110 }
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111
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112 void LayoutWidgetModel::append(LayoutWidget* layout_widget)
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113 {
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114 if (m_layout_widgets_dict.contains(layout_widget->getName()))
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115 {
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116 qWarning() << "Layout widget of this name already exists, can't add an other one: " << layout_widget->getName();
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117 delete layout_widget;
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118 return;
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119 }
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120 beginInsertRows(QModelIndex(), m_layout_widgets.size(), m_layout_widgets.size()+1);
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121 m_layout_widgets.append(layout_widget);
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122 m_layout_widgets_dict.insert(layout_widget->getName(), layout_widget);
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123 endInsertRows();
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124 }
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125
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126
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127 const QList<LayoutWidget*>& LayoutWidgetModel::getLayoutWidgets() const
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128 {
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129 return m_layout_widgets;
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130 }
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131
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132 const QHash<QString, LayoutWidget*>& LayoutWidgetModel::getLayoutWidgetsDict() const
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133 {
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134 return m_layout_widgets_dict;
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135 }