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

   1 /*\r
   2  * This file is part of NixNote/NeighborNote \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 is the dialog box that pops up when\r
  25 //* a user tries to insert a LaTeX image.\r
  26 //**********************************************\r
  27 //**********************************************\r
  28 \r
  29 import com.trolltech.qt.core.Qt;\r
  30 import com.trolltech.qt.gui.QDialog;\r
  31 import com.trolltech.qt.gui.QGridLayout;\r
  32 import com.trolltech.qt.gui.QIcon;\r
  33 import com.trolltech.qt.gui.QLabel;\r
  34 import com.trolltech.qt.gui.QPushButton;\r
  35 import com.trolltech.qt.gui.QTextEdit;\r
  36 \r
  37 public class InsertLatexImage extends QDialog {\r
  38 \r
  39         private boolean         okPressed;\r
  40         private final QTextEdit url;\r
  41         private final QPushButton ok;\r
  42         private String          latexText;\r
  43         private final String iconPath = new String("classpath:cx/fbn/nevernote/icons/");\r
  44                 \r
  45         // Constructor\r
  46         public InsertLatexImage() {\r
  47                 okPressed = false;\r
  48                 setWindowTitle(tr("Insert LaTeX Formula"));\r
  49                 setWindowIcon(new QIcon(iconPath+"link.png"));\r
  50                 QGridLayout grid = new QGridLayout();\r
  51                 QGridLayout input = new QGridLayout();\r
  52                 QGridLayout button = new QGridLayout();\r
  53                 setLayout(grid);\r
  54                 \r
  55                 \r
  56                 url = new QTextEdit("");\r
  57                 \r
  58                 input.addWidget(new QLabel(tr("Formula")), 1,1);\r
  59                 input.addWidget(url, 2, 1);\r
  60                 input.setContentsMargins(10, 10,  -10, -10);\r
  61                 grid.addLayout(input, 1,1);\r
  62                         \r
  63                 ok = new QPushButton(tr("OK"));\r
  64                 ok.clicked.connect(this, "accept()");\r
  65                 ok.setEnabled(false);\r
  66                 \r
  67                 QPushButton cancel = new QPushButton(tr("Cancel"));\r
  68                 cancel.clicked.connect(this, "reject()");\r
  69                 button.addWidget(ok, 1, 1);\r
  70                 button.addWidget(cancel, 1,2);\r
  71                 grid.addLayout(button, 3, 1);\r
  72                 url.textChanged.connect(this, "validateInput()");\r
  73                 \r
  74                 setAttribute(Qt.WidgetAttribute.WA_DeleteOnClose);\r
  75         }\r
  76         // Set the formula\r
  77         public void setFormula(String x) {\r
  78                 url.setText(x);\r
  79         }\r
  80         // Get the formula \r
  81         public String getFormula() {\r
  82                 return latexText;\r
  83         }\r
  84         // Set the url\r
  85         public void setUrl(String u) {\r
  86                 url.setText(u);\r
  87         }\r
  88         // Check if the OK button was pressed\r
  89         public boolean okPressed() {\r
  90                 return okPressed;\r
  91         }\r
  92         // Check that we have a valid URL\r
  93         @SuppressWarnings("unused")\r
  94         private void validateInput() {\r
  95                 ok.setEnabled(true);\r
  96                 if (url.toPlainText().trim().equals("")) \r
  97                         ok.setEnabled(false);\r
  98         }\r
  99         \r
 100         @Override\r
 101         public void accept() {\r
 102                 if (ok.isEnabled()) {\r
 103                         okPressed = true;\r
 104                         latexText = url.toPlainText();\r
 105                         super.accept();\r
 106                 }\r
 107         }\r
 108         \r
 109         @Override\r
 110         public void reject() {\r
 111                 okPressed=false;\r
 112                 super.reject();\r
 113         }\r
 114 }\r