src/cx/fbn/nevernote/dialog/ThumbnailViewer.java

   1 /*\r
   2  * This file is part of NixNote \r
   3  * Copyright 2009 Randy Baumgarte\r
   4  * \r
   5  * This file may be licensed under the terms of of the\r
   6  * GNU General Public License Version 2 (the ``GPL'').\r
   7  *\r
   8  * Software distributed under the License is distributed\r
   9  * on an ``AS IS'' basis, WITHOUT WARRANTY OF ANY KIND, either\r
  10  * express or implied. See the GPL for the specific language\r
  11  * governing rights and limitations.\r
  12  *\r
  13  * You should have received a copy of the GPL along with this\r
  14  * program. If not, go to http://www.gnu.org/licenses/gpl.html\r
  15  * or write to the Free Software Foundation, Inc.,\r
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.\r
  17  *\r
  18 */\r
  19 \r
  20 package cx.fbn.nevernote.dialog;\r
  21 \r
  22 //**********************************************\r
  23 //**********************************************\r
  24 //* This isn't really used but at one time it\r
  25 //* was used to create a full page preview.\r
  26 //**********************************************\r
  27 //**********************************************\r
  28 \r
  29 import java.util.List;\r
  30 \r
  31 import com.trolltech.qt.core.QPoint;\r
  32 import com.trolltech.qt.core.QRect;\r
  33 import com.trolltech.qt.core.Qt;\r
  34 import com.trolltech.qt.core.Qt.WindowModality;\r
  35 import com.trolltech.qt.gui.QApplication;\r
  36 import com.trolltech.qt.gui.QColor;\r
  37 import com.trolltech.qt.gui.QDesktopWidget;\r
  38 import com.trolltech.qt.gui.QDialog;\r
  39 import com.trolltech.qt.gui.QGridLayout;\r
  40 import com.trolltech.qt.gui.QImage;\r
  41 import com.trolltech.qt.gui.QKeyEvent;\r
  42 import com.trolltech.qt.gui.QLabel;\r
  43 import com.trolltech.qt.gui.QMouseEvent;\r
  44 import com.trolltech.qt.gui.QPaintEvent;\r
  45 import com.trolltech.qt.gui.QPainter;\r
  46 import com.trolltech.qt.gui.QPalette;\r
  47 import com.trolltech.qt.gui.QPalette.ColorRole;\r
  48 import com.trolltech.qt.gui.QPixmap;\r
  49 import com.trolltech.qt.gui.QWheelEvent;\r
  50 public class ThumbnailViewer extends QDialog {\r
  51         private String thumbnail;\r
  52         private final QLabel picture;\r
  53         QGridLayout grid = new QGridLayout();\r
  54         public Signal0 upArrow;\r
  55         public Signal0 downArrow;\r
  56         public Signal0 leftArrow;\r
  57         public Signal0 rightArrow;\r
  58         private QImage  image;\r
  59         private List<String> guids;\r
  60         \r
  61 \r
  62         public ThumbnailViewer() {\r
  63                 this.setVisible(false);\r
  64                 \r
  65                 leftArrow = new Signal0();\r
  66                 rightArrow = new Signal0();\r
  67                 upArrow = new Signal0();\r
  68                 downArrow = new Signal0();\r
  69 \r
  70 \r
  71                 setAutoFillBackground(true);\r
  72                 QPalette palette = new QPalette(palette());\r
  73             // Set background colour to black\r
  74             palette.setColor(ColorRole.Base, QColor.black);\r
  75             setPalette(palette);\r
  76             \r
  77                 grid = new QGridLayout();\r
  78                 setLayout(grid);\r
  79                 \r
  80                 \r
  81                 picture = new QLabel();\r
  82 /*              \r
  83                 QLabel left = new QLabel();\r
  84                 QLabel right = new QLabel();\r
  85                 \r
  86                 grid.addWidget(left, 0,0);\r
  87                 grid.addWidget(picture,0,1);\r
  88                 grid.addWidget(right, 0,2);\r
  89                 grid.setWidgetSpacing(1);\r
  90                 grid.setContentsMargins(10, 10,  -10, -10);\r
  91 */              \r
  92                 \r
  93                 setWindowModality(WindowModality.ApplicationModal);\r
  94                 setWindowFlags(Qt.WindowType.FramelessWindowHint);\r
  95                 setAttribute(Qt.WidgetAttribute.WA_TranslucentBackground);\r
  96 //              setBackgroundRole(ColorRole.Shadow);\r
  97 //              setAttribute(Qt.WidgetAttribute.WA_DeleteOnClose);\r
  98 //              showFullScreen();\r
  99 //              this.hide();\r
 100 \r
 101         }\r
 102         public void setThumbnail(String thumb) {\r
 103                 thumbnail = thumb;\r
 104                 image = new QImage(thumbnail);\r
 105                 picture.setPixmap(QPixmap.fromImage(image));\r
 106         }\r
 107         public void setThumbnail(QImage i) {\r
 108                 image = i;\r
 109                 picture.setPixmap(QPixmap.fromImage(image));\r
 110         }\r
 111         \r
 112 \r
 113         @Override\r
 114         public void keyPressEvent(QKeyEvent e) {\r
 115                 if (e.key() == Qt.Key.Key_Up.value() || e.key() == Qt.Key.Key_Right.value()) {\r
 116                         upArrow.emit();\r
 117                 }\r
 118                 if (e.key() == Qt.Key.Key_Down.value() || e.key() == Qt.Key.Key_Left.value()) {\r
 119                         downArrow.emit();\r
 120                 }\r
 121 \r
 122                 super.keyPressEvent(e);\r
 123         }\r
 124         \r
 125         \r
 126         @Override\r
 127         public void mousePressEvent(QMouseEvent e) {\r
 128                 if (e.button() == Qt.MouseButton.LeftButton)\r
 129                         close();\r
 130         }\r
 131         \r
 132         @Override\r
 133         public void wheelEvent(QWheelEvent e) {\r
 134                 int numDegrees = e.delta() / 8;\r
 135         int numSteps = numDegrees / 15;\r
 136         \r
 137         if (e.orientation().equals(Qt.Orientation.Vertical)) { \r
 138                 if (numSteps > 0) {\r
 139                         for (int i=0; i<numSteps; i++) {\r
 140                                 upArrow.emit();\r
 141                                 repaint();\r
 142                         }\r
 143                 }\r
 144                 if (numSteps < 0) {\r
 145                         for (int i=numSteps; i<0; i++) {\r
 146                                 downArrow.emit();\r
 147                                 repaint();\r
 148                         }\r
 149                 }\r
 150         }\r
 151         }\r
 152         \r
 153         @Override\r
 154         public void paintEvent(QPaintEvent e) {\r
 155                 QDesktopWidget desktop = QApplication.desktop();\r
 156                 int screen = desktop.screenNumber();\r
 157                 this.setMaximumSize(desktop.size());\r
 158                 this.setMinimumSize(desktop.size());\r
 159                 resize(desktop.size());\r
 160                 \r
 161                 QPainter painter = new QPainter(this);\r
 162                 \r
 163                 painter.fillRect(desktop.screenGeometry(screen), QColor.black);\r
 164 \r
 165                 QRect availGeo = desktop.availableGeometry(screen);\r
 166                 \r
 167                 int x1 = (availGeo.width()/2)-(image.size().width()/2);\r
 168                 int y1 = (availGeo.height()/2)-(image.size().height()/2);\r
 169                 \r
 170                 painter.drawImage(new QPoint(x1,y1), image);\r
 171         }\r
 172 \r
 173 \r
 174         public List<String> getGuids() {\r
 175                 return guids;\r
 176         }\r
 177         public void setGuids(List<String> g) {\r
 178                 guids = g;\r
 179         }\r
 180 \r
 181 \r
 182 }\r