author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 19 Apr 2010 14:02:13 +0300 | |
changeset 0 | 16d8024aca5e |
child 1 | f7ac710697a9 |
permissions | -rw-r--r-- |
0
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/**************************************************************************** |
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** |
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** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies). |
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** All rights reserved. |
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** Contact: Nokia Corporation (developer.feedback@nokia.com) |
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** |
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** This file is part of the HbCore module of the UI Extensions for Mobile. |
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** |
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** GNU Lesser General Public License Usage |
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** This file may be used under the terms of the GNU Lesser General Public |
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** License version 2.1 as published by the Free Software Foundation and |
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** appearing in the file LICENSE.LGPL included in the packaging of this file. |
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** Please review the following information to ensure the GNU Lesser General |
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** Public License version 2.1 requirements will be met: |
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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** |
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** In addition, as a special exception, Nokia gives you certain additional |
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** rights. These rights are described in the Nokia Qt LGPL Exception |
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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** |
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** If you have questions regarding the use of this file, please contact |
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** Nokia at developer.feedback@nokia.com. |
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** |
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****************************************************************************/ |
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#include <QObject> |
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#include <QLocale> |
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#include <QDir> |
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#include <QPluginLoader> |
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#include <QInputContextPlugin> |
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#include <QGraphicsScene> |
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#include <QWidget> |
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#include <QGraphicsWidget> |
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#include <QGraphicsView> |
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#include <QGridLayout> |
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#include <QGraphicsProxyWidget> |
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|
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#include "hbinputkeymap.h" |
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#include "hbinputkeymapfactory.h" |
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#include "hbinputsettingproxy.h" |
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#include "hbinputlanguagedatabase.h" |
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#include "hbinputmodecache_p.h" |
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#include "hbinputlanguage.h" |
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#include "hbinpututils.h" |
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|
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/// @cond |
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|
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static bool usesLatinDigits(QLocale::Language language, HbInputDigitType digitType) |
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{ |
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if (digitType == HbDigitTypeDevanagari) { |
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return false; |
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} |
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if (language == QLocale::Urdu || language == QLocale::Persian) { |
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// Latin digits are used in Persian and Urdu ITU-T keypads |
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if (HbInputSettingProxy::instance()->activeKeyboard() == HbKeyboardVirtual12Key) { |
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return true; |
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} else { |
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return false; |
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} |
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} |
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if (language == QLocale::Arabic && digitType == HbDigitTypeArabicIndic) { |
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return false; |
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} |
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|
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return true; |
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} |
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|
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/// @endcond |
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|
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/*! |
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\class HbInputUtils |
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\brief A collection input related utility methods. |
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|
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This class contains a collection of static input related utility methods that do not |
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naturally belong to any other scope. There are convenience methods for testing |
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attributes of keyboard and input mode types, instantiating plugins etc. |
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\sa HbInputMethod |
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\sa QInputContextPlugin |
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*/ |
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|
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/*! |
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Finds the fist number character bound to key using given mapping data. |
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@param keyboardType Type of the keyboard |
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@param key Key code where to look for number character |
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@param keymapData Pointer to keymap data where to look |
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@param digitType Type of digit if not latin |
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*/ |
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QChar HbInputUtils::findFirstNumberCharacterBoundToKey(const HbMappedKey* key, |
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const HbInputLanguage language, |
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const HbInputDigitType digitType) |
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{ |
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if (key) { |
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QString chars = key->characters(HbModifierNone); |
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if (usesLatinDigits(language.language(), digitType)) { |
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for (int i = 0; i < chars.length(); i++) { |
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if (chars.at(i) >= '0' && chars.at(i) <= '9') { |
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return chars.at(i); |
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} |
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} |
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} else if (digitType == HbDigitTypeDevanagari) { |
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for (int i = 0; i < chars.length(); i++) { |
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if (chars.at(i) >= 0x0966 && chars.at(i) <= 0x096F) { |
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return chars.at(i); |
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104 |
} |
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105 |
} |
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} else if (digitType == HbDigitTypeArabicIndic) { |
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for (int i = 0; i < chars.length(); i++) { |
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if (chars.at(i) >= 0x0660 && chars.at(i) <= 0x0669) { |
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return chars.at(i); |
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} |
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} |
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} else if (digitType == HbDigitTypeEasternArabic) { |
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for (int i = 0; i < chars.length(); i++) { |
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if (chars.at(i) >= 0x06F0 && chars.at(i) <= 0x06F9) { |
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return chars.at(i); |
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} |
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} |
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} |
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119 |
} |
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120 |
|
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return 0; |
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} |
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123 |
|
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124 |
/*! |
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Returns true if the concept of "text case" can be applied to given input mode. |
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For example Chinese and Japanese modes do not have text case. |
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*/ |
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bool HbInputUtils::isCaseSensitiveMode(HbInputModeType inputMode) |
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129 |
{ |
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if (isChineseInputMode(inputMode)) { |
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return false; |
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} |
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133 |
|
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return true; |
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135 |
} |
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136 |
|
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137 |
/*! |
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138 |
Lists all Qt library files in language database directory. May return |
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files that are not language database plugins. languageDatabasePluginInstance() |
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checks the validity of plugin files provided by this function. |
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141 |
|
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\sa languageDatabasePluginInstance |
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143 |
*/ |
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void HbInputUtils::listAvailableLanguageDatabasePlugins(QStringList& result, const QString& subfolder) |
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145 |
{ |
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QString path(HbInputSettingProxy::languageDatabasePath()); |
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path += QDir::separator(); |
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path += subfolder; |
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149 |
|
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QDir dir(path); |
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151 |
|
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for (unsigned int i = 0; i < dir.count(); i++) { |
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if (QLibrary::isLibrary(dir[i])) { |
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result.append(dir[i]); |
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155 |
} |
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156 |
} |
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157 |
} |
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158 |
|
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159 |
/*! |
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160 |
Creates an instance of given language database plugin, if valid. |
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161 |
*/ |
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HbLanguageDatabaseInterface* HbInputUtils::languageDatabasePluginInstance(const QString& pluginFileName, const QString& subfolder) |
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163 |
{ |
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if (!QLibrary::isLibrary(pluginFileName)) { |
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qDebug("HbInputUtils::languageDatabasePluginInstance: Not a library!"); |
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return NULL; |
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167 |
} |
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168 |
|
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HbLanguageDatabaseInterface* res = NULL; |
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170 |
|
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QString fullName(HbInputSettingProxy::languageDatabasePath()); |
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fullName += QDir::separator(); |
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if (subfolder.length() > 0) { |
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fullName += subfolder; |
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fullName += QDir::separator(); |
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176 |
} |
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fullName += pluginFileName; |
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178 |
|
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QPluginLoader loader(fullName); |
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QObject* plugin = loader.instance(); |
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181 |
|
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if (plugin) { |
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res = qobject_cast<HbLanguageDatabaseInterface*>(plugin); |
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} else { |
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qDebug("HbInputUtils::languageDatabasePluginInstance: Unable to instantiate plugin"); |
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} |
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187 |
|
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return res; |
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} |
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190 |
|
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191 |
/*! |
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192 |
Returns true if the given plugin is located to permanent (ROM) memory. |
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This is only relevant for devices where plugins can be pre-installed as part |
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of ROM-based firmware. In Windows and Unix environments this always returns false. |
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*/ |
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bool HbInputUtils::isInputPluginInPermanentMemory(const QString& pluginFileName) |
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197 |
{ |
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Q_UNUSED(pluginFileName) |
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return false; |
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} |
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201 |
|
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202 |
/*! |
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Lists all the input languages that the set of available input methods supports. Excludes custom input methods. |
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204 |
*/ |
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void HbInputUtils::listSupportedInputLanguages(QList<HbInputLanguage>& results) |
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{ |
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results = HbInputModeCache::instance()->listInputLanguages(); |
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} |
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209 |
|
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/*! |
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This method creates an instance of QWidget and wraps given graphics widget inside it. |
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It creates QGraphicsScene, adds given widget there and creates a view to the scene |
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inside returned QWidget. This is utility method is mainly for internal use. |
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*/ |
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QWidget* HbInputUtils::createWrapperWidget(QGraphicsWidget* graphicsWidget) |
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{ |
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QWidget *ret = 0; |
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|
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if (graphicsWidget) { |
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ret = new QWidget; |
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ret->setContentsMargins(0, 0, 0, 0); |
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QGraphicsScene *scene = new QGraphicsScene(ret); |
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scene->addItem(graphicsWidget); |
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QGraphicsView *view = new QGraphicsView(scene); |
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view->setContentsMargins(0, 0, 0, 0); |
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QGridLayout *layout = new QGridLayout; |
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layout->setMargin(0); |
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layout->setContentsMargins(0, 0, 0, 0); |
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layout->addWidget(view); |
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ret->setLayout(layout); |
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} |
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|
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return ret; |
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} |
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|
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/*! |
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A convinience method that wraps given widget inside QGraphicsProxyWidget |
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and returns it. This is utility method is mainly for internal use. |
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*/ |
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QGraphicsWidget* HbInputUtils::createGraphicsProxyWidget(QWidget* widget) |
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{ |
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|
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QGraphicsProxyWidget *proxy = 0; |
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|
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if (widget) { |
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proxy = new QGraphicsProxyWidget; |
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proxy->setWidget(widget); |
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} |
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|
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return proxy; |
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} |
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|
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// End of file |
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