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cxHelpWidget.cpp
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1 /*=========================================================================
2 This file is part of CustusX, an Image Guided Therapy Application.
3 
4 Copyright (c) 2008-2014, SINTEF Department of Medical Technology
5 All rights reserved.
6 
7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions are met:
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10 1. Redistributions of source code must retain the above copyright notice,
11  this list of conditions and the following disclaimer.
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13 2. Redistributions in binary form must reproduce the above copyright notice,
14  this list of conditions and the following disclaimer in the documentation
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17 3. Neither the name of the copyright holder nor the names of its contributors
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21 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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30 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 =========================================================================*/
32 
33 #include "cxHelpWidget.h"
34 
35 #include "boost/bind.hpp"
36 #include "boost/function.hpp"
37 #include <QHelpEngine>
38 #include <QSplitter>
39 #include <QHelpContentWidget>
40 #include <QHelpIndexWidget>
41 #include <QTabWidget>
42 
43 #include "cxTypeConversions.h"
44 #include "cxHelpEngine.h"
45 #include "cxHelpBrowser.h"
46 #include "cxHelpSearchWidget.h"
47 #include "cxHelpIndexWidget.h"
48 #include "cxSettings.h"
49 #include "cxLogger.h"
50 #include "cxDataLocations.h"
51 #include <QDesktopServices>
52 
53 namespace cx
54 {
55 
56 HelpWidget::HelpWidget(HelpEnginePtr engine, QWidget* parent) :
57  BaseWidget(parent, "HelpWidget", "Help"),
58  mVerticalLayout(NULL),
59  mTabWidget(NULL),
60  mEngine(engine)
61 {
62 }
63 
64 void HelpWidget::setup()
65 {
66  if (mVerticalLayout)
67  return;
68 
69 // this->setToolTip("Context-sensitive and browser help");
70  mVerticalLayout = new QVBoxLayout(this);
71  mVerticalLayout->setMargin(0);
72  mVerticalLayout->setSpacing(0);
73  this->setLayout(mVerticalLayout);
74  mTabWidget = new QTabWidget(this);
75  mTabWidget->setElideMode(Qt::ElideRight);
76 
77  QSplitter *splitter = new QSplitter(Qt::Horizontal);
78  mSplitter = splitter;
79 
80  HelpBrowser *browser = new HelpBrowser(this, mEngine);
81  connect(this, &HelpWidget::requestShowLink,
82  browser, &HelpBrowser::setSource);
83  mBrowser = browser;
84 
85  QHBoxLayout* buttonLayout = new QHBoxLayout;
86  // buttonLayout->setMargin(0);
87  mVerticalLayout->addLayout(buttonLayout);
88 
89  splitter->insertWidget(0, mTabWidget);
90  splitter->insertWidget(1, browser);
91  splitter->setStretchFactor(1, 1);
92  mVerticalLayout->addWidget(splitter);
93 
94  this->addContentWidget(mTabWidget, buttonLayout);
95  this->addSearchWidget(mTabWidget, buttonLayout);
96  this->addIndexWidget(mTabWidget, buttonLayout);
97 
98  this->addToggleTabWidgetButton(buttonLayout);
99  this->addWebNavigationButtons(buttonLayout);
100  this->addWebButton(buttonLayout);
101  buttonLayout->addStretch();
102 
103  browser->showHelpForKeyword("user_doc_overview");
104 
105  bool navVis = settings()->value("org.custusx.help/navigationVisible").toBool();
106  mTabWidget->setVisible(navVis);
107 }
108 
110 {}
111 
112 QSize HelpWidget::sizeHint() const
113 {
114  // removing this gives a very small initial size
115  return QSize(250,30);
116 }
117 
118 
119 void HelpWidget::addContentWidget(QTabWidget* tabWidget, QBoxLayout* buttonLayout)
120 {
121  QHelpContentWidget* contentWidget = mEngine->engine()->contentWidget();
122  tabWidget->addTab(contentWidget, "contents");
123 
124  boost::function<void()> f = boost::bind(&QHelpContentWidget::expandToDepth, contentWidget, 2);
125  connect(mEngine->engine()->contentModel(), &QHelpContentModel::contentsCreated, f);
126  contentWidget->expandToDepth(2); // in case contents have been created
127 
128  connect(mEngine->engine()->contentWidget(), &QHelpContentWidget::linkActivated,
130 }
131 
132 void HelpWidget::addWebNavigationButtons(QBoxLayout* buttonLayout)
133 {
134  QAction* back = this->createAction(this,
135  QIcon(":/icons/open_icon_library/arrow-left-3.png"),
136  "Back", "Back to previous page",
137  SLOT(backSlot()),
138  buttonLayout, new CXSmallToolButton());
139 
140  QAction* forward = this->createAction(this,
141  QIcon(":/icons/open_icon_library/arrow-right-3.png"),
142  "Forward", "Forward to next page",
143  SLOT(forwardSlot()),
144  buttonLayout, new CXSmallToolButton());
145 
146  connect(mBrowser, SIGNAL(backwardAvailable(bool)), back, SLOT(setEnabled(bool)));
147  connect(mBrowser, SIGNAL(forwardAvailable(bool)), forward, SLOT(setEnabled(bool)));
148 }
149 
150 void HelpWidget::addWebButton(QBoxLayout* buttonLayout)
151 {
152  this->createAction2(this,
153  QIcon(":/icons/open_icon_library/applications-internet.png"),
154  "Web", "Open Web Documentation",
155  &HelpWidget::onGotoDocumentation,
156  buttonLayout, new CXSmallToolButton());
157 }
158 
159 void HelpWidget::onGotoDocumentation()
160 {
162  QDesktopServices::openUrl(QUrl(url, QUrl::TolerantMode));
163 }
164 
165 void HelpWidget::backSlot()
166 {
167  mBrowser->backward();
168 }
169 
170 void HelpWidget::forwardSlot()
171 {
172  mBrowser->forward();
173 }
174 
175 void HelpWidget::addToggleTabWidgetButton(QBoxLayout* buttonLayout)
176 {
177  QAction* action = this->createAction(this,
178  QIcon(":/icons/open_icon_library/view-list-tree.png"),
179  "Toggle show navigation controls", "",
180  SLOT(toggleShowNavigationControls()),
181  NULL);
182  action->setCheckable(true);
183  CXSmallToolButton* button = new CXSmallToolButton();
184  button->setDefaultAction(action);
185  buttonLayout->addWidget(button);
186  mShowNavigationControlsAction = action;
187 }
188 
189 void HelpWidget::addIndexWidget(QTabWidget* tabWidget, QBoxLayout* buttonLayout)
190 {
191  mIndexWidget = new HelpIndexWidget(mEngine, this);
192  tabWidget->addTab(mIndexWidget, "index");
193 
194  connect(mIndexWidget, &HelpIndexWidget::requestShowLink,
196 }
197 
198 void HelpWidget::addSearchWidget(QTabWidget* tabWidget, QBoxLayout* buttonLayout)
199 {
200  mSearchWidget = new HelpSearchWidget(mEngine, this);
201  tabWidget->addTab(mSearchWidget, "search");
202  connect(mSearchWidget, &HelpSearchWidget::requestShowLink,
204 }
205 
206 void HelpWidget::showEvent(QShowEvent* event)
207 {
208  QWidget::showEvent(event);
209  this->setModified();
210 }
211 
212 void HelpWidget::hideEvent(QHideEvent* event)
213 {
214  QWidget::hideEvent(event);
215 }
216 
217 void HelpWidget::prePaintEvent()
218 {
219  this->setup();
220 }
221 
222 void HelpWidget::toggleShowNavigationControls()
223 {
224  if (mTabWidget->isVisible())
225  mTabWidget->hide();
226  else
227  {
228  mTabWidget->show();
229 
230  QList<int> sizes = mSplitter->sizes();
231  if (sizes[0]==0)
232  {
233  sizes[0] = sizes[1]*1/3;
234  sizes[1] = sizes[1]*2/3;
235  mSplitter->setSizes(sizes);
236  }
237 
238  }
239  settings()->setValue("org.custusx.help/navigationVisible", mTabWidget->isVisible());
240 }
241 
242 }//end namespace cx
void requestShowLink(const QUrl &)
virtual ~HelpWidget()
static QString getWebsiteUserDocumentationURL()
QVariant value(const QString &key, const QVariant &defaultValue=QVariant()) const
Definition: cxSettings.cpp:87
QAction * createAction(QObject *parent, QIcon iconName, QString text, QString tip, T slot, QLayout *layout=NULL, QToolButton *button=new QToolButton())
Definition: cxBaseWidget.h:149
void requestShowLink(const QUrl &)
HelpWidget(HelpEnginePtr engine, QWidget *parent=NULL)
void requestShowLink(const QUrl &)
void setValue(const QString &key, const QVariant &value)
Definition: cxSettings.cpp:79
void showHelpForKeyword(const QString &id)
Settings * settings()
Shortcut for accessing the settings instance.
Definition: cxSettings.cpp:42
virtual void setSource(const QUrl &name)
Interface for QWidget which handles widgets uniformly for the system.
Definition: cxBaseWidget.h:108
virtual QSize sizeHint() const
boost::shared_ptr< HelpEngine > HelpEnginePtr
Definition: cxHelpEngine.h:83