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cxControllableSplitter.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.
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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,
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21 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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31 =========================================================================*/
32 #include "cxControllableSplitter.h"
33 
34 #include <QSplitter>
35 #include <QVBoxLayout>
36 #include <QAction>
37 #include <QTimer>
38 
39 namespace cx
40 {
41 
43  mShiftSplitterLeft(NULL),
44  mShiftSplitterRight(NULL),
45  mSplitterRatio(0.5),
46  mOptions(options)
47 {
48  QVBoxLayout* layout = new QVBoxLayout(this);
49  layout->setMargin(0);
50  layout->setSpacing(0);
51 
52  mSplitter = new QSplitter(Qt::Horizontal);
53  connect(mSplitter, &QSplitter::splitterMoved, this, &ControllableSplitter::onSplitterMoved);
54 
55  layout->addWidget(mSplitter, 1);
56 
57  mSplitterRatio = this->getSplitterRatioOption().readValue(QString::number(0.5)).toDouble();
58 
59  // must set geometry after sizes have been set, i.e. after return to the main loop:
60  QTimer::singleShot(0, this, SLOT(initializeSettings()));
61 }
62 
64 {
65  this->getSplitterRatioOption().writeValue(QString::number(mSplitterRatio));
66  this->getShiftStateOption().writeValue(QString::number(this->getShiftState()));
67 }
68 
69 XmlOptionItem ControllableSplitter::getSplitterRatioOption()
70 {
71  return XmlOptionItem("splitter_ratio", mOptions.getElement());
72 }
73 
74 XmlOptionItem ControllableSplitter::getShiftStateOption()
75 {
76  return XmlOptionItem("shift_state", mOptions.getElement());
77 }
78 
79 void ControllableSplitter::addLeftWidget(QWidget *widget, QString name)
80 {
81  mLeftName = name;
82  mSplitter->insertWidget(0, widget);
83 }
84 void ControllableSplitter::addRightWidget(QWidget *widget, QString name)
85 {
86  mRightName = name;
87  mSplitter->insertWidget(1, widget);
88 }
89 
90 void ControllableSplitter::initializeSettings()
91 {
92  this->setShiftState(this->getShiftStateOption().readValue("0").toInt());
93  this->onSplitterMoved();
94 }
95 
97 {
98  if (!mShiftSplitterLeft)
99  {
100  QAction* action = new QAction(QIcon(":/icons/open_icon_library/arrow-left-3.png"),
101  QString("Show %1").arg(mRightName), this);
102  action->setToolTip(QString("Show more %1").arg(mRightName));
103  action->setStatusTip(action->toolTip());
104  connect(action, &QAction::triggered, this, &ControllableSplitter::onMoveSplitterLeft);
105  mShiftSplitterLeft = action;
106  this->enableActions();
107  }
108  return mShiftSplitterLeft;
109 }
110 
112 {
113  if (!mShiftSplitterRight)
114  {
115  QAction* action = new QAction(QIcon(":/icons/open_icon_library/arrow-right-3.png"),
116  QString("Show %1").arg(mLeftName), this);
117  action->setToolTip(QString("Show more %1").arg(mLeftName));
118  action->setStatusTip(action->toolTip());
119  connect(action, &QAction::triggered, this, &ControllableSplitter::onMoveSplitterRight);
120  mShiftSplitterRight = action;
121  this->enableActions();
122  }
123  return mShiftSplitterRight;
124 }
125 
126 void ControllableSplitter::onMoveSplitterLeft()
127 {
128  this->shiftSplitter(-1);
129 }
130 
131 void ControllableSplitter::onMoveSplitterRight()
132 {
133  this->shiftSplitter(+1);
134 }
135 
136 void ControllableSplitter::onSplitterMoved()
137 {
138  QList<int> sizes = mSplitter->sizes();
139  if (this->splitterShowsBoth())
140  mSplitterRatio = double(sizes[0]) /double(sizes[0]+sizes[1]);
141 
142  this->enableActions();
143 }
144 
145 void ControllableSplitter::enableActions()
146 {
147  if (mShiftSplitterLeft)
148  mShiftSplitterLeft->setEnabled(this->getShiftState()>=0);
149  if (mShiftSplitterRight)
150  mShiftSplitterRight->setEnabled(this->getShiftState()<=0);
151 }
152 
153 bool ControllableSplitter::splitterShowsBoth() const
154 {
155  QList<int> sizes = mSplitter->sizes();
156  return (( sizes.size()==2 )&&( sizes[0]!=0 )&&( sizes[1]!=0 ));
157 }
158 
159 int ControllableSplitter::getShiftState() const
160 {
161  QList<int> sizes = mSplitter->sizes();
162 
163  if(sizes[0]==0)
164  return -1;
165  else if(sizes[1]==0)
166  return 1;
167  else
168  return 0;
169 }
170 
171 void ControllableSplitter::setShiftState(int shiftState)
172 {
173  QList<int> sizes = mSplitter->sizes();
174 
175  if (shiftState<0) // show props
176  {
177  sizes[0] = 0;
178  sizes[1] = 1;
179  }
180  else if (shiftState>0) // show both
181  {
182  sizes[0] = 1;
183  sizes[1] = 0;
184  }
185  else // shop browser
186  {
187  int sizesum = sizes[0]+sizes[1];
188  sizes[0] = mSplitterRatio * sizesum;
189  sizes[1] = (1.0-mSplitterRatio) * sizesum;
190  }
191  mSplitter->setSizes(sizes);
192 
193  this->onSplitterMoved();
194 }
195 
196 void ControllableSplitter::shiftSplitter(int shift)
197 {
198  // positive shift axis goes to the right, from browser to properties
199 
200  int shiftState = this->getShiftState();
201  shiftState += shift;
202  this->setShiftState(shiftState);
203 }
204 
205 }//end namespace cx
206 
void addLeftWidget(QWidget *widget, QString name)
QDomElement getElement()
return the current element
Helper class for storing one string value in an xml document.
void writeValue(const QString &val)
ControllableSplitter(XmlOptionFile options, QWidget *parent)
void addRightWidget(QWidget *widget, QString name)
Helper class for xml files used to store ssc/cx data.
QString readValue(const QString &defval) const