1 files changed, 168 insertions, 0 deletions
diff --git a/examples3/tablestatistics.py b/examples3/tablestatistics.py
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+#!/usr/bin/env python
+
+#****************************************************************************
+#** $Id: tablestatistics.py,v 1.1 2002/06/19 07:56:07 phil Exp $
+#**
+#** Copyright (C) 1992-1998 Troll Tech AS.  All rights reserved.
+#**
+#** This file is part of an example program for PyQt.  This example
+#** program may be used, distributed and modified without limitation.
+#**
+#*****************************************************************************/
+
+import sys
+import os
+from qt import *
+from qttable import *
+
+TRUE  = 1
+FALSE = 0
+
+# column constants
+TB_FILE = 0
+TB_SIZE = 1
+TB_FLAG = 2
+TB_COLS = 3
+
+dirs = (
+    "kernel",
+    "tools",
+    "widgets",
+    "dialogs",
+    "xml",
+    "table",
+    "network",
+    "opengl",
+    "canvas",
+)
+
+class Table(QTable):
+    def __init__(self):
+        QTable.__init__(self, 0, TB_COLS)
+        self.setSorting(TRUE)
+        self.horizontalHeader().setLabel(TB_FILE, self.tr("File"))
+        self.horizontalHeader().setLabel(TB_SIZE, self.tr("Size (bytes)"))
+        self.horizontalHeader().setLabel(TB_FLAG, self.tr("Use in Sum"))
+        self.initTable()
+        self.adjustColumn(TB_FILE)
+
+        # if the user edited something we might need to recalculate the sum
+        self.connect(self, SIGNAL("valueChanged(int, int)"), self.recalcSum)
+
+    def initTable(self):
+        # read all the Qt source and header files into a list
+        all = []
+        qtdir = os.getenv("QTDIR")
+        for i in dirs:
+            dir = QDir(os.path.join(qtdir, "src", i))
+            lst = QStringList(dir.entryList("*.cpp; *.h"))
+            for f in lst:
+                if f.contains("moc"):
+                    continue
+                all.append(os.path.join(i, str(f)))
+
+        # set the number of rows we'll need for the table
+        self.setNumRows(len(all) + 1)
+
+        i = 0
+        sum = 0L
+        # insert the data into the table
+        for it in all:
+            self.setText(i, TB_FILE, it)
+            f = QFile(os.path.join(qtdir, "src", str(it)))
+            self.setText(i, TB_SIZE, str(f.size()))
+            ci = ComboItem(self, QTableItem.WhenCurrent)
+            self.setItem(i, TB_FLAG, ci)
+            i = i + 1
+            sum += f.size()
+        self.displaySum(sum)
+
+    def recalcSum(self, dummy, col):
+        # only recalc if a value in the second or third column changed
+        if col < TB_SIZE or col > TB_FLAG:
+            return
+
+        sum = 0L
+        for i in range(self.numRows()-1):
+            if str(self.text(i, TB_FLAG)) == "No":
+                continue
+            sum += long(str(self.text(i, TB_SIZE)))
+        self.displaySum(sum)
+
+    def displaySum(self, sum):
+        # insert calculated data
+        i1 = TableItem(self, QTableItem.Never, self.tr("Sum"))
+        self.setItem(self.numRows()-1, TB_FILE, i1)
+        i2 = TableItem(self, QTableItem.Never, str(sum))
+        self.setItem(self.numRows()-1, TB_SIZE, i2)
+
+    def sortColumn(self, col, ascending, wholeRows):
+        # sum row should not be sorted, so get rid of it for now
+        self.clearCell(self.numRows()-1, TB_FILE)
+        self.clearCell(self.numRows()-1, TB_SIZE)
+        # do sort
+        QTable.sortColumn(self, col, ascending, TRUE)
+        # re-insert sum row
+        self.recalcSum(0, TB_SIZE)
+
+
+class TableItem(QTableItem):
+    def __init__(self, *args):
+        apply(QTableItem.__init__, (self,) + args)
+
+    def paint(self, p, cg, cr, selected):
+        g = QColorGroup(cg)
+        # last row is the sum row - we want to make it more visible by
+        # using a red background
+        if self.row() == self.table().numRows()-1:
+            g.setColor(QColorGroup.Base, QColor("red"))
+            QTableItem.paint(self, p, g, cr, selected)
+
+
+class ComboItem(QTableItem):
+    def __init__(self, t, et):
+        QTableItem.__init__(self, t, et, "Yes")
+        self.cb = None
+        # we do not want this item to be replaced
+        self.setReplaceable(FALSE)
+
+    def createEditor(self):
+        # create an editor - a combobox in our case
+        self.cb = QComboBox(self.table().viewport())
+        QObject.connect(self.cb, SIGNAL("activated(int)"), 
+                        self.table(), SLOT("doValueChanged()"))
+        self.cb.insertItem("Yes")
+        self.cb.insertItem("No")
+        # and initialize it
+        if str(self.text()) == "No":
+            self.cb.setCurrentItem(1)
+        else:
+            self.cb.setCurrentItem(0)
+        return self.cb
+
+    def setContentFromEditor(self, w):
+        # the user changed the value of the combobox, so synchronize the
+        # value of the item (its text), with the value of the combobox
+        if w.inherits("QComboBox"):
+            self.setText(w.currentText())
+        else:
+            QTableItem.setContentFromEditor(self, w)
+
+    def setText(self, s):
+        # initialize the combobox from the text
+        if self.cb:
+            if str(s) == "No":
+                self.cb.setCurrentItem(1)
+            else:
+                self.cb.setCurrentItem(0)
+        QTableItem.setText(self, s)
+
+
+if __name__ == '__main__':
+    app = QApplication(sys.argv)
+
+    t = Table()
+    t.setCaption("Statistics")
+    t.show()
+    app.setMainWidget(t)
+    app.exec_loop()