timespanwidget.cpp
00001 /* 00002 This file is part of KOrganizer. 00003 00004 Copyright (c) 2001 Cornelius Schumacher <schumacher@kde.org> 00005 00006 This program is free software; you can redistribute it and/or modify 00007 it under the terms of the GNU General Public License as published by 00008 the Free Software Foundation; either version 2 of the License, or 00009 (at your option) any later version. 00010 00011 This program is distributed in the hope that it will be useful, 00012 but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 GNU General Public License for more details. 00015 00016 You should have received a copy of the GNU General Public License 00017 along with this program; if not, write to the Free Software 00018 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 00019 00020 As a special exception, permission is given to link this program 00021 with any edition of TQt, and distribute the resulting executable, 00022 without including the source code for TQt in the source distribution. 00023 */ 00024 00025 #include <tqsplitter.h> 00026 #include <tqlistview.h> 00027 #include <tqlayout.h> 00028 #include <tqheader.h> 00029 #include <tqpushbutton.h> 00030 00031 #include <klocale.h> 00032 #include <kdebug.h> 00033 00034 #include <libkcal/event.h> 00035 00036 #include "lineview.h" 00037 #include "timeline.h" 00038 00039 #include "timespanwidget.h" 00040 #include "timespanwidget.moc" 00041 00042 TimeSpanWidget::TimeSpanWidget( TQWidget *parent, const char *name ) : 00043 TQWidget( parent, name ) 00044 { 00045 TQBoxLayout *topLayout = new TQVBoxLayout( this ); 00046 00047 mSplitter = new TQSplitter( this ); 00048 topLayout->addWidget( mSplitter ); 00049 00050 mList = new TQListView( mSplitter ); 00051 mList->addColumn( i18n("Summary") ); 00052 00053 TQWidget *rightPane = new TQWidget( mSplitter ); 00054 TQBoxLayout *rightPaneLayout = new TQVBoxLayout( rightPane ); 00055 00056 mTimeLine = new TimeLine( rightPane ); 00057 mTimeLine->setFixedHeight( mList->header()->height() ); 00058 rightPaneLayout->addWidget( mTimeLine ); 00059 00060 mLineView = new LineView( rightPane ); 00061 rightPaneLayout->addWidget( mLineView ); 00062 00063 TQBoxLayout *buttonLayout = new TQHBoxLayout( rightPaneLayout ); 00064 00065 TQPushButton *zoomInButton = new TQPushButton( i18n("Zoom In"), rightPane ); 00066 connect( zoomInButton, TQT_SIGNAL( clicked() ), TQT_SLOT( zoomIn() ) ); 00067 buttonLayout->addWidget( zoomInButton ); 00068 00069 TQPushButton *zoomOutButton = new TQPushButton( i18n("Zoom Out"), rightPane ); 00070 connect( zoomOutButton, TQT_SIGNAL( clicked() ), TQT_SLOT( zoomOut() ) ); 00071 buttonLayout->addWidget( zoomOutButton ); 00072 00073 TQPushButton *centerButton = new TQPushButton( i18n("Center View"), rightPane ); 00074 connect( centerButton, TQT_SIGNAL( clicked() ), TQT_SLOT( centerView() ) ); 00075 buttonLayout->addWidget( centerButton ); 00076 00077 connect(mLineView->horizontalScrollBar(),TQT_SIGNAL(valueChanged(int)), 00078 mTimeLine,TQT_SLOT(setContentsPos(int))); 00079 } 00080 00081 TimeSpanWidget::~TimeSpanWidget() 00082 { 00083 } 00084 00085 TQValueList<int> TimeSpanWidget::splitterSizes() 00086 { 00087 return mSplitter->sizes(); 00088 } 00089 00090 void TimeSpanWidget::setSplitterSizes( TQValueList<int> sizes ) 00091 { 00092 mSplitter->setSizes( sizes ); 00093 } 00094 00095 void TimeSpanWidget::addItem( KCal::Event *event ) 00096 { 00097 new TQListViewItem( mList, event->summary() ); 00098 00099 TQDateTime startDt = event->dtStart(); 00100 TQDateTime endDt = event->dtEnd(); 00101 00102 // kdDebug(5850) << "TimeSpanWidget::addItem(): start: " << startDt.toString() 00103 // << " end: " << endDt.toString() << endl; 00104 00105 // int startSecs = mStartDate.secsTo( startDt ); 00106 // int durationSecs = startDt.secsTo( endDt ); 00107 00108 // kdDebug(5850) << "--- startSecs: " << startSecs << " dur: " << durationSecs << endl; 00109 00110 int startX = mStartDate.secsTo( startDt ) / mSecsPerPixel; 00111 int endX = startX + startDt.secsTo( endDt ) / mSecsPerPixel; 00112 00113 // kdDebug(5850) << "TimeSpanWidget::addItem(): s: " << startX << " e: " << endX << endl; 00114 00115 mLineView->addLine( startX, endX ); 00116 } 00117 00118 void TimeSpanWidget::clear() 00119 { 00120 mList->clear(); 00121 mLineView->clear(); 00122 } 00123 00124 void TimeSpanWidget::updateView() 00125 { 00126 mLineView->updateContents(); 00127 mTimeLine->updateContents(); 00128 } 00129 00130 void TimeSpanWidget::setDateRange( const TQDateTime &start, const TQDateTime &end ) 00131 { 00132 mStartDate = start; 00133 mEndDate = end; 00134 00135 mTimeLine->setDateRange( start, end ); 00136 00137 mSecsPerPixel = mStartDate.secsTo( mEndDate ) / mLineView->pixelWidth(); 00138 } 00139 00140 TQDateTime TimeSpanWidget::startDateTime() 00141 { 00142 return mStartDate; 00143 } 00144 00145 TQDateTime TimeSpanWidget::endDateTime() 00146 { 00147 return mEndDate; 00148 } 00149 00150 void TimeSpanWidget::zoomIn() 00151 { 00152 int span = mStartDate.daysTo( mEndDate ); 00153 setDateRange( mStartDate.addDays( span / 4 ), mEndDate.addDays( span / -4 ) ); 00154 00155 emit dateRangeChanged(); 00156 } 00157 00158 void TimeSpanWidget::zoomOut() 00159 { 00160 int span = mStartDate.daysTo( mEndDate ); 00161 setDateRange( mStartDate.addDays( span / -4 ), mEndDate.addDays( span / 4 ) ); 00162 00163 emit dateRangeChanged(); 00164 } 00165 00166 void TimeSpanWidget::centerView() 00167 { 00168 TQScrollBar *scrollBar = mLineView->horizontalScrollBar(); 00169 int min = scrollBar->minValue(); 00170 int max = scrollBar->maxValue(); 00171 scrollBar->setValue( min + (max-min) / 2 ); 00172 }