author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 03 May 2010 12:48:33 +0300 | |
changeset 1 | f7ac710697a9 |
parent 0 | 16d8024aca5e |
permissions | -rw-r--r-- |
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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 HbInput 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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// Qt includes |
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#include <QGraphicsLinearLayout> |
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#include <QSignalMapper> |
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#include <QPainter> |
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#include <QSizePolicy> |
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#include <QGraphicsDropShadowEffect> |
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#include <hbeffect.h> |
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#include <hbinputsettingproxy.h> |
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#include <hbmainwindow.h> |
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#include <hbcolorscheme.h> |
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#include <hbframedrawer.h> |
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#include <hbframeitem.h> |
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#include <hbdeviceprofile.h> |
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#include <private/hbdialog_p.h> |
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#include <hbtextitem.h> |
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#include <hbmainwindow.h> |
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#include <hbinstance.h> |
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#include "hbinputpreviewlabel.h" |
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#include "hbinputcharpreviewpane.h" |
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const int HbPreviewZoomDelta = 7; |
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const qreal HbPreviewBoundaryDelta = 1.5; |
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const qreal HbBoundaryLabelWidthFactor = 0.75; |
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const qreal HbLabelwidthFactor = 0.50; |
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/// @cond |
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/* |
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Character preview widget for Accented characters. |
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Implements character preview for characters mapped in the preview Pane. |
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*/ |
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class HbAccentedCharPreviewPane: public HbWidget |
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{ |
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public: |
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/*! |
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Constructor. |
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@param parent of the widget. |
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*/ |
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HbAccentedCharPreviewPane(QGraphicsItem *parent = 0) |
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:HbWidget(parent), |
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mTextItem(0) |
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{ |
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HbFrameItem *n = new HbFrameItem(parent); |
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n->frameDrawer().setFrameType(HbFrameDrawer::ThreePiecesHorizontal); |
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n->frameDrawer().setFrameGraphicsName("qtg_fr_character_preview"); |
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setBackgroundItem( n ); |
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mTextItem = static_cast<HbTextItem*>(style()->createPrimitive(HbStyle::P_Label_text, this)); |
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} |
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/*! |
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update the text and frame primitives |
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*/ |
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void updatePrimitives() |
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{ |
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HbWidget::updatePrimitives(); |
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if (mTextItem) { |
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mTextItem->setFontSpec(HbFontSpec(HbFontSpec::Primary)); |
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mTextItem->setAlignment(Qt::AlignCenter); |
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} |
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} |
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/*! |
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Destroys the object. |
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*/ |
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~HbAccentedCharPreviewPane() { |
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} |
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public: |
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HbTextItem* mTextItem; |
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}; |
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class HbCharPreviewPanePrivate: public HbDialogPrivate |
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{ |
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Q_DECLARE_PUBLIC(HbCharPreviewPane) |
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public: |
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HbCharPreviewPanePrivate(); |
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~HbCharPreviewPanePrivate(); |
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void clearCharacters(); |
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void updateCharacters(); |
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void init(); |
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108 |
|
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// private slots |
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void _q_showAccentedPreviewPane(QString character, QRectF sceneBoundingRect); |
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void _q_hideAccentedPreviewPane(); |
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void _q_hidePreviewPanePopup(); |
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113 |
public: |
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QStringList mCharacterList; |
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QSignalMapper *mReleaseMapper; |
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QGraphicsLinearLayout* mCandLayout; |
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QSizeF mItemSize; |
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HbAccentedCharPreviewPane* mAccentedPreviewPane; |
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}; |
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120 |
|
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void HbCharPreviewPanePrivate::init() |
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122 |
{ |
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Q_Q(HbCharPreviewPane); |
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124 |
|
1
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HbFrameItem *n = new HbFrameItem( q ); |
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n->frameDrawer().setFrameType(HbFrameDrawer::ThreePiecesHorizontal); |
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n->frameDrawer().setFrameGraphicsName("qtg_fr_character_preview"); |
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128 |
|
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q->setBackgroundItem( n ); |
0
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} |
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131 |
|
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HbCharPreviewPanePrivate::HbCharPreviewPanePrivate() |
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: mReleaseMapper(0), |
1
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mCandLayout(0) |
0
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135 |
{ |
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mAccentedPreviewPane = new HbAccentedCharPreviewPane(); |
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} |
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138 |
|
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139 |
HbCharPreviewPanePrivate::~HbCharPreviewPanePrivate() |
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140 |
{ |
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if(mAccentedPreviewPane) { |
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delete mAccentedPreviewPane; |
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143 |
} |
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if(mReleaseMapper) { |
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delete mReleaseMapper; |
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146 |
} |
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147 |
} |
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148 |
|
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void HbCharPreviewPanePrivate::clearCharacters() |
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150 |
{ |
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Q_Q(HbCharPreviewPane); |
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for (int i = mCandLayout->count() - 1; i >= 0; i--) { |
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QGraphicsLayoutItem* layoutitem = mCandLayout->itemAt(i); |
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mCandLayout->removeAt(i); |
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delete layoutitem; |
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156 |
} |
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mCandLayout->updateGeometry(); |
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q->adjustSize(); |
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159 |
} |
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160 |
|
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161 |
void HbCharPreviewPanePrivate::updateCharacters() |
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162 |
{ |
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163 |
Q_Q(HbCharPreviewPane); |
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164 |
// need to set the minimum size to an invalid value here in order to make sure that the size does not become 0 |
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mCandLayout->setMinimumSize(-1,-1); |
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166 |
for (int i = 0; i < mCharacterList.count(); i++) { |
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167 |
HbPreviewLabel* label = new HbPreviewLabel(mCharacterList[i]); |
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168 |
label->setPreferredHeight(mItemSize.height() + HbPreviewZoomDelta); |
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169 |
if (mCharacterList.count() > 1 && i != mCharacterList.count()-1) { |
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label->setPreferredWidth(HbBoundaryLabelWidthFactor * mItemSize.width()); |
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label->setTextGeometry(mItemSize.width(), mItemSize.height()); |
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172 |
} else { |
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label->setPreferredWidth(HbLabelwidthFactor * mItemSize.width()); |
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label->setTextGeometry(mItemSize.width(), mItemSize.height()); |
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175 |
} |
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176 |
|
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177 |
QObject::connect(label, SIGNAL(showAccentedPreview(QString,QRectF)), q, SLOT(_q_showAccentedPreviewPane(QString,QRectF))); |
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QObject::connect(label, SIGNAL(selected()), mReleaseMapper, SLOT(map())); |
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QObject::connect(label, SIGNAL(hideAccentedPreview()), q, SLOT(_q_hideAccentedPreviewPane())); |
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QObject::connect(label, SIGNAL(hidePreview()), q, SLOT(_q_hidePreviewPanePopup())); |
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mReleaseMapper->setMapping(label, mCharacterList[i]); |
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mCandLayout->addItem(label); |
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mCandLayout->setItemSpacing(i, 0.0); |
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184 |
} |
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185 |
|
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mCandLayout->setContentsMargins(mItemSize.width() / 4, 0, mItemSize.width() / 4, 0); |
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mCandLayout->updateGeometry(); |
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q->adjustSize(); |
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189 |
} |
1
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190 |
|
0
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191 |
/*! |
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192 |
Sets the character for preview and shows in it's Pane. |
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@param character The character for preview. |
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@param itemSceneBoundingRect of the QGraphicsItem. |
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195 |
*/ |
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void HbCharPreviewPanePrivate::_q_showAccentedPreviewPane(QString character, QRectF itemSceneBoundingRect) |
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197 |
{ |
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Q_Q(HbCharPreviewPane); |
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mAccentedPreviewPane->setZValue(q->zValue()+1); |
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q->scene()->addItem(mAccentedPreviewPane); |
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201 |
// let's validate. |
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if (!itemSceneBoundingRect.isValid()) { |
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return; |
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204 |
} |
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QColor color = HbColorScheme::color("qtc_editor_normal"); |
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// we need to show the accented char preview preview just above the |
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// passed QRectF of the item which is passed. |
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QPointF pos = itemSceneBoundingRect.topLeft(); |
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pos.setY(pos.y() - mItemSize.height() + HbPreviewZoomDelta + HbPreviewBoundaryDelta); |
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210 |
|
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// let's adjust x position of the character preview pane so that it |
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// is aligned at the center of the items for which we want to show |
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// the preview. |
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pos.setX(itemSceneBoundingRect.x() - itemSceneBoundingRect.width()/4); |
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215 |
|
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// set final position for the character preview pane |
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mAccentedPreviewPane->setPos(pos); |
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mAccentedPreviewPane->mTextItem->setText(character); |
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if (color.isValid()) { |
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mAccentedPreviewPane->mTextItem->setTextColor(color); |
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} |
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mAccentedPreviewPane->updatePrimitives(); |
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QSizeF paneSize = itemSceneBoundingRect.size(); |
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QRectF rect; |
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rect.setWidth(HbBoundaryLabelWidthFactor * mItemSize.width()); |
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rect.setHeight(mItemSize.height()); |
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rect.setY(paneSize.height()/2 - mItemSize.height()/2 - HbPreviewZoomDelta - HbPreviewBoundaryDelta); |
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mAccentedPreviewPane->mTextItem->setGeometry(rect); |
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229 |
|
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// show it! |
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mAccentedPreviewPane->show(); |
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} |
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/* |
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hides the accented single character preview pane whenever user tries to hover on it |
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as the the character is inputed in the editor only when mouse is released from preview pane |
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*/ |
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void HbCharPreviewPanePrivate::_q_hideAccentedPreviewPane() |
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{ |
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mAccentedPreviewPane->hide(); |
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} |
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241 |
|
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/* |
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hides the accented single character preview pane as well as charcters Preview Pane |
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244 |
*/ |
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void HbCharPreviewPanePrivate::_q_hidePreviewPanePopup() |
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246 |
{ |
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Q_Q(HbCharPreviewPane); |
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mAccentedPreviewPane->hide(); |
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if (q->isVisible()) { |
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q->hide(); |
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} |
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} |
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253 |
|
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/// @endcond |
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|
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256 |
/*! |
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@proto |
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@hbinput |
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\class HbCharPreviewPane |
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\deprecated class HbCharPreviewPane |
0
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\brief Character preview widget for virtual keyboards. |
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|
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263 |
|
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Implements character preview for virtual keyboards. Shows a list of clickable |
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characters and maps the clicks to owning keyboard's charFromPreviewSelected slot. |
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For first level of preview popup we have a linear layout, we create a HbPreviewLabel |
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and add the labels to this layout. For second level of preview popup as user clicks |
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on the lebel of preview pane we display preview of the accented character on the preview pane. |
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269 |
|
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\sa HbInputVkbWidget |
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\sa HbPreviewLabel |
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*/ |
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273 |
|
0
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/*! |
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\deprecated HbCharPreviewPane::HbCharPreviewPane(QGraphicsItem*) |
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is deprecated. |
0
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*/ |
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HbCharPreviewPane::HbCharPreviewPane(QGraphicsItem* parent) |
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: HbDialog(*new HbCharPreviewPanePrivate, parent) |
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{ |
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Q_D(HbCharPreviewPane); |
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|
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d->q_ptr = this; |
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|
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d->mCandLayout = new QGraphicsLinearLayout(Qt::Horizontal); |
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setLayout(d->mCandLayout); |
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|
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d->setPriority(HbPopupPrivate::VirtualKeyboard + 1); // Should be visible on top of VKB |
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289 |
|
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// set some properties |
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setFocusPolicy(Qt::ClickFocus); |
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setModal(false); |
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setDismissPolicy(HbPopup::TapAnywhere); |
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setBackgroundFaded(false); |
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|
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#if QT_VERSION >= 0x040600 |
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// Make sure the preview pane never steals focus. |
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setFlag(QGraphicsItem::ItemIsPanel, true); |
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setActive(false); |
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|
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// enable drop shadow for the preview pane |
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QGraphicsDropShadowEffect *effect = new QGraphicsDropShadowEffect; |
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effect->setBlurRadius(8); |
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setGraphicsEffect(effect); |
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#endif |
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|
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// signal mapper for getting events |
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d->mReleaseMapper = new QSignalMapper(this); |
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|
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QObject::connect(d->mReleaseMapper, SIGNAL(mapped(QString)), this, SIGNAL(charFromPreviewSelected(QString))); |
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setTimeout(NoTimeout); |
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d->init(); |
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|
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// This is important we need to switch off all the effects. |
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// if we dont switch off the effect, and if there is a call to 'show' while a 'hide' animation is |
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// in progress the hide call will be ignored. |
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// this will lead to a problem where we will not able to see all the character |
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// preview in case the user is typing very fast. |
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#ifdef HB_EFFECTS |
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HbEffect::disable(this); |
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#endif // HB_EFFECTS |
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} |
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|
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/*! |
1
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\deprecated HbCharPreviewPane::~HbCharPreviewPane() |
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is deprecated. |
0
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*/ |
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HbCharPreviewPane::~HbCharPreviewPane() |
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{ |
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} |
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|
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/*! |
1
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\deprecated HbCharPreviewPane::showCharacters(const QStringList&, const QRectF &) |
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is deprecated. |
0
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*/ |
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void HbCharPreviewPane::showCharacters(const QStringList& characterList, const QRectF &itemSceneBoundingRect) |
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{ |
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Q_D(HbCharPreviewPane); |
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// let's validate. |
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if (!itemSceneBoundingRect.isValid()) { |
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return; |
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} |
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343 |
|
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if (characterList.size() > 1) { |
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setModal(true); |
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} else { |
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setModal(false); |
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} |
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|
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d->mCharacterList = characterList; |
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// let's store items size. |
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d->mItemSize = itemSceneBoundingRect.size(); |
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|
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// we need to clear previous character. |
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d->clearCharacters(); |
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356 |
|
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// update new candidates |
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d->updateCharacters(); |
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|
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updateGeometry(); |
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361 |
|
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// we need to show the preview just above the |
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// passed QRectF of the item which is passed. |
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QPointF pos = itemSceneBoundingRect.topLeft(); |
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pos.setY(pos.y() - size().height()); |
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|
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// let's adjust x position of the character preview pane so that it |
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// is aligned at the center of the items for which we want to show |
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// the preview. |
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pos.setX(itemSceneBoundingRect.center().x() - size().width()/2); |
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371 |
|
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// We need to adjust the character preview pane's postion |
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// such that it is visible in in the current screen. |
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if (pos.x() < 0) { |
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pos.setX(0); |
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} else { |
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const int screenWidth = HbDeviceProfile::profile(this).logicalSize().width(); |
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const qreal requiredWidth = pos.x() + (geometry().width()); |
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if ( requiredWidth > screenWidth) { |
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pos.setX(screenWidth-(geometry().width())); |
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} |
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} |
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|
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// set final position for the character preview pane |
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setPos(pos); |
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386 |
|
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// we need to reset mousePressLocation to None. |
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// We are handling character preview pane a bit differently than a usual popup. |
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// A HbDialog closes the popup on a mouse release. And there is a problem when we |
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// have long pressed on a button and the preview pane is showing set of characters, |
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// same time if we do a long press on another button preview will be shown on the next |
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// button but as soon as we release the button HbDialog's internal logic closes the |
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// preview pane. since popup closes on mouse release event. To aviod this situation we |
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// need to reset mousePressLocation. Since this behaviour is very specific to preview pane |
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// we need to fix it here. |
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d->mousePressLocation = HbPopupPrivate::None; |
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397 |
|
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// set the background as a panel if the foreground is a panel to provide focus handling |
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if ((flags() & QGraphicsItem::ItemIsPanel) && isModal()) { |
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d->backgroundItem->setFlag(QGraphicsItem::ItemIsPanel); |
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} |
0
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// show it! |
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show(); |
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} |
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405 |
|
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#include "moc_hbinputcharpreviewpane.cpp" |
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407 |
// End Of File |
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408 |