[1f4adec] | 1 | /* |
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| 2 | |
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| 3 | Copyright 2014 S. Razi Alavizadeh |
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| 4 | Copyright 2012-2015 Adam Reichold |
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| 5 | Copyright 2014 Dorian Scholz |
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| 6 | |
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| 7 | This file is part of qpdfview. |
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| 8 | |
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| 9 | qpdfview is free software: you can redistribute it and/or modify |
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| 10 | it under the terms of the GNU General Public License as published by |
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| 11 | the Free Software Foundation, either version 2 of the License, or |
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| 12 | (at your option) any later version. |
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| 13 | |
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| 14 | qpdfview is distributed in the hope that it will be useful, |
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| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | GNU General Public License for more details. |
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| 18 | |
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| 19 | You should have received a copy of the GNU General Public License |
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| 20 | along with qpdfview. If not, see <http://www.gnu.org/licenses/>. |
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| 21 | |
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| 22 | */ |
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| 23 | |
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| 24 | #ifndef MISCELLANEOUS_H |
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| 25 | #define MISCELLANEOUS_H |
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| 26 | |
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| 27 | #include <QComboBox> |
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| 28 | #include <QGraphicsEffect> |
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| 29 | #include <QLineEdit> |
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| 30 | #include <QMenu> |
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| 31 | #include <QPainter> |
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| 32 | #include <QProxyStyle> |
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| 33 | #include <QSpinBox> |
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| 34 | #include <QTreeView> |
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| 35 | |
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| 36 | class QTextLayout; |
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| 37 | |
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| 38 | namespace qpdfview |
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| 39 | { |
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| 40 | |
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| 41 | // graphics composition mode effect |
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| 42 | |
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| 43 | class GraphicsCompositionModeEffect : public QGraphicsEffect |
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| 44 | { |
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| 45 | Q_OBJECT |
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| 46 | |
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| 47 | public: |
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| 48 | GraphicsCompositionModeEffect(QPainter::CompositionMode compositionMode, QObject* parent = 0); |
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| 49 | |
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| 50 | protected: |
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| 51 | void draw(QPainter* painter); |
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| 52 | |
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| 53 | private: |
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| 54 | QPainter::CompositionMode m_compositionMode; |
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| 55 | |
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| 56 | }; |
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| 57 | |
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| 58 | // proxy style |
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| 59 | |
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| 60 | class ProxyStyle : public QProxyStyle |
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| 61 | { |
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| 62 | Q_OBJECT |
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| 63 | |
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| 64 | public: |
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| 65 | ProxyStyle(); |
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| 66 | |
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| 67 | bool scrollableMenus() const; |
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| 68 | void setScrollableMenus(bool scrollableMenus); |
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| 69 | |
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| 70 | int styleHint(StyleHint hint, const QStyleOption* option, const QWidget* widget, QStyleHintReturn* returnData) const; |
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| 71 | |
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| 72 | private: |
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| 73 | Q_DISABLE_COPY(ProxyStyle) |
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| 74 | |
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| 75 | bool m_scrollableMenus; |
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| 76 | |
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| 77 | }; |
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| 78 | |
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| 79 | // searchable menu |
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| 80 | |
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| 81 | class SearchableMenu : public QMenu |
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| 82 | { |
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| 83 | Q_OBJECT |
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| 84 | |
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| 85 | public: |
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| 86 | SearchableMenu(const QString& title, QWidget* parent = 0); |
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| 87 | |
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| 88 | bool isSearchable() const; |
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| 89 | void setSearchable(bool searchable); |
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| 90 | |
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| 91 | protected: |
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| 92 | void hideEvent(QHideEvent* event); |
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| 93 | void keyPressEvent(QKeyEvent* event); |
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| 94 | |
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| 95 | private: |
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| 96 | bool m_searchable; |
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| 97 | QString m_text; |
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| 98 | |
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| 99 | }; |
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| 100 | |
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| 101 | // tab bar |
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| 102 | |
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| 103 | class TabBar : public QTabBar |
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| 104 | { |
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| 105 | Q_OBJECT |
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| 106 | |
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| 107 | public: |
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| 108 | explicit TabBar(QWidget* parent = 0); |
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| 109 | |
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| 110 | protected: |
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| 111 | QSize tabSizeHint(int index) const; |
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| 112 | |
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| 113 | void mousePressEvent(QMouseEvent* event); |
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| 114 | |
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| 115 | private: |
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| 116 | Q_DISABLE_COPY(TabBar) |
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| 117 | |
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| 118 | }; |
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| 119 | |
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| 120 | // tab widget |
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| 121 | |
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| 122 | class TabWidget : public QTabWidget |
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| 123 | { |
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| 124 | Q_OBJECT |
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| 125 | |
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| 126 | public: |
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| 127 | explicit TabWidget(QWidget* parent = 0); |
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| 128 | |
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| 129 | enum TabBarPolicy |
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| 130 | { |
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| 131 | TabBarAsNeeded = 0, |
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| 132 | TabBarAlwaysOn = 1, |
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| 133 | TabBarAlwaysOff = 2 |
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| 134 | }; |
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| 135 | |
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| 136 | TabBarPolicy tabBarPolicy() const; |
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| 137 | void setTabBarPolicy(TabBarPolicy tabBarPolicy); |
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| 138 | |
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| 139 | bool spreadTabs() const; |
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| 140 | void setSpreadTabs(bool spreadTabs); |
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| 141 | |
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| 142 | signals: |
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| 143 | void tabContextMenuRequested(const QPoint& globalPos, int index); |
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| 144 | |
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| 145 | protected slots: |
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| 146 | void on_tabBar_customContextMenuRequested(const QPoint& pos); |
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| 147 | |
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| 148 | protected: |
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| 149 | void tabInserted(int index); |
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| 150 | void tabRemoved(int index); |
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| 151 | |
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| 152 | private: |
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| 153 | Q_DISABLE_COPY(TabWidget) |
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| 154 | |
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| 155 | TabBarPolicy m_tabBarPolicy; |
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| 156 | bool m_spreadTabs; |
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| 157 | |
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| 158 | }; |
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| 159 | |
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| 160 | // tree view |
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| 161 | |
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| 162 | class TreeView : public QTreeView |
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| 163 | { |
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| 164 | Q_OBJECT |
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| 165 | |
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| 166 | public: |
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| 167 | explicit TreeView(int expansionRole, QWidget* parent = 0); |
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| 168 | |
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| 169 | public slots: |
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| 170 | void expandAbove(const QModelIndex& child); |
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| 171 | |
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| 172 | void expandAll(const QModelIndex& index = QModelIndex()); |
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| 173 | void collapseAll(const QModelIndex& index = QModelIndex()); |
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| 174 | |
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| 175 | int expandedDepth(const QModelIndex& index); |
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| 176 | |
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| 177 | void expandToDepth(const QModelIndex& index, int depth); |
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| 178 | void collapseFromDepth(const QModelIndex& index, int depth); |
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| 179 | |
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| 180 | void restoreExpansion(const QModelIndex& index = QModelIndex()); |
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| 181 | |
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| 182 | protected: |
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| 183 | void keyPressEvent(QKeyEvent* event); |
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| 184 | void wheelEvent(QWheelEvent* event); |
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| 185 | |
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| 186 | void contextMenuEvent(QContextMenuEvent* event); |
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| 187 | |
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| 188 | protected slots: |
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| 189 | void on_expanded(const QModelIndex& index); |
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| 190 | void on_collapsed(const QModelIndex& index); |
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| 191 | |
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| 192 | private: |
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| 193 | Q_DISABLE_COPY(TreeView) |
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| 194 | |
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| 195 | int m_expansionRole; |
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| 196 | |
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| 197 | }; |
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| 198 | |
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| 199 | // line edit |
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| 200 | |
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| 201 | class LineEdit : public QLineEdit |
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| 202 | { |
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| 203 | Q_OBJECT |
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| 204 | |
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| 205 | public: |
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| 206 | explicit LineEdit(QWidget* parent = 0); |
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| 207 | |
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| 208 | protected: |
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| 209 | void mousePressEvent(QMouseEvent* event); |
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| 210 | |
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| 211 | private: |
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| 212 | Q_DISABLE_COPY(LineEdit) |
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| 213 | |
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| 214 | }; |
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| 215 | |
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| 216 | // combo box |
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| 217 | |
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| 218 | class ComboBox : public QComboBox |
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| 219 | { |
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| 220 | Q_OBJECT |
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| 221 | |
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| 222 | public: |
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| 223 | explicit ComboBox(QWidget* parent = 0); |
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| 224 | |
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| 225 | private: |
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| 226 | Q_DISABLE_COPY(ComboBox) |
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| 227 | |
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| 228 | }; |
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| 229 | |
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| 230 | // spin box |
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| 231 | |
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| 232 | class SpinBox : public QSpinBox |
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| 233 | { |
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| 234 | Q_OBJECT |
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| 235 | |
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| 236 | public: |
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| 237 | explicit SpinBox(QWidget* parent = 0); |
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| 238 | |
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| 239 | signals: |
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| 240 | void returnPressed(); |
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| 241 | |
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| 242 | protected: |
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| 243 | void keyPressEvent(QKeyEvent* event); |
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| 244 | |
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| 245 | private: |
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| 246 | Q_DISABLE_COPY(SpinBox) |
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| 247 | |
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| 248 | }; |
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| 249 | |
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| 250 | // mapping spin box |
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| 251 | |
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| 252 | class MappingSpinBox : public SpinBox |
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| 253 | { |
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| 254 | Q_OBJECT |
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| 255 | |
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| 256 | public: |
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| 257 | struct TextValueMapper |
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| 258 | { |
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| 259 | virtual ~TextValueMapper() {} |
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| 260 | |
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| 261 | virtual QString textFromValue(int val, bool& ok) const = 0; |
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| 262 | virtual int valueFromText(const QString& text, bool& ok) const = 0; |
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| 263 | }; |
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| 264 | |
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| 265 | MappingSpinBox(TextValueMapper* mapper, QWidget* parent = 0); |
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| 266 | |
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| 267 | protected: |
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| 268 | QString textFromValue(int val) const; |
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| 269 | int valueFromText(const QString& text) const; |
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| 270 | |
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| 271 | QValidator::State validate(QString& input, int& pos) const; |
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| 272 | |
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| 273 | private: |
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| 274 | Q_DISABLE_COPY(MappingSpinBox) |
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| 275 | |
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| 276 | QScopedPointer< TextValueMapper > m_mapper; |
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| 277 | |
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| 278 | }; |
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| 279 | |
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| 280 | int getMappedNumber(MappingSpinBox::TextValueMapper* mapper, |
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| 281 | QWidget* parent, const QString& title, const QString& caption, |
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| 282 | int value = 0, int min = -2147483647, int max = 2147483647, |
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| 283 | bool* ok = 0, Qt::WindowFlags flags = 0); |
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| 284 | |
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| 285 | // progress line edit |
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| 286 | |
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| 287 | class ProgressLineEdit : public QLineEdit |
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| 288 | { |
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| 289 | Q_OBJECT |
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| 290 | |
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| 291 | public: |
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| 292 | explicit ProgressLineEdit(QWidget* parent = 0); |
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| 293 | |
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| 294 | int progress() const; |
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| 295 | void setProgress(int progress); |
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| 296 | |
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| 297 | signals: |
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| 298 | void returnPressed(const Qt::KeyboardModifiers& modifiers); |
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| 299 | |
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| 300 | protected: |
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| 301 | void paintEvent(QPaintEvent* event); |
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| 302 | void keyPressEvent(QKeyEvent* event); |
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| 303 | |
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| 304 | private: |
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| 305 | Q_DISABLE_COPY(ProgressLineEdit) |
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| 306 | |
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| 307 | int m_progress; |
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| 308 | |
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| 309 | }; |
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| 310 | |
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| 311 | // search line edit |
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| 312 | |
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| 313 | class SearchLineEdit : public ProgressLineEdit |
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| 314 | { |
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| 315 | Q_OBJECT |
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| 316 | |
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| 317 | public: |
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| 318 | explicit SearchLineEdit(QWidget* parent = 0); |
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| 319 | |
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| 320 | public slots: |
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| 321 | void startSearch(); |
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| 322 | |
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| 323 | void startTimer(); |
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| 324 | void stopTimer(); |
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| 325 | |
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| 326 | signals: |
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| 327 | void searchInitiated(const QString& text, bool modified = false); |
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| 328 | |
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| 329 | protected slots: |
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| 330 | void on_timeout(); |
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| 331 | void on_returnPressed(const Qt::KeyboardModifiers& modifiers); |
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| 332 | |
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| 333 | private: |
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| 334 | Q_DISABLE_COPY(SearchLineEdit) |
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| 335 | |
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| 336 | QTimer* m_timer; |
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| 337 | |
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| 338 | }; |
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| 339 | |
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| 340 | // fallback icons |
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| 341 | |
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| 342 | inline QIcon loadIconWithFallback(const QString& name) |
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| 343 | { |
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| 344 | QIcon icon = QIcon::fromTheme(name); |
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| 345 | |
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| 346 | if(icon.isNull()) |
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| 347 | { |
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| 348 | icon = QIcon(QLatin1String(":icons/") + name + QLatin1String(".svg")); |
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| 349 | } |
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| 350 | |
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| 351 | return icon; |
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| 352 | } |
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| 353 | |
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| 354 | } // qpdfview |
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| 355 | |
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| 356 | #endif // MISCELLANEOUS_H |
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