[PyQt] X Errors

[Jesse Aldridge]

If I run the following program, and scroll all the way down to the bottom of
the window, I get a bunch of XErrors, like so:

X Error: BadAlloc (insufficient resources for operation) 11
  Major opcode: 53 (X_CreatePixmap)
  Resource id:  0x8a
X Error: BadDrawable (invalid Pixmap or Window parameter) 9
  Extension:    152 (RENDER)
  Minor opcode: 4 (RenderCreatePicture)
  Resource id:  0x460042e
X Error: RenderBadPicture (invalid Picture parameter) 169
  Extension:    152 (RENDER)
  Minor opcode: 7 (RenderFreePicture)
  Resource id:  0x460042f

I'm not sure if this is a qt bug, a pyqt bug, or what.  Any suggestions
would be appreciated.

-----------


import sys

from PyQt4.QtGui import *
from PyQt4.QtCore import *

app = QApplication(sys.argv)
main_window = QMainWindow()

# Create a column of many QTextEdits in a QScrollArea
scroll_area = QScrollArea()
column = QGroupBox()
column.setLayout(QVBoxLayout())
text_edits = []
for i in range(40):
    # Add a lot of text to each QTextEdit
    text_edit = QTextEdit("Testing " * 1000)
    column.layout().addWidget(text_edit)
    text_edits.append(text_edit)

main_window.setCentralWidget(scroll_area)

scroll_area.setWidget(column)
scroll_area.setWidgetResizable(True)

main_window.resize(600,300)

# Resize each QTextEdit so that it displays all of its text without
# needing scrollbars
for text_edit in text_edits:
    fm = QFontMetrics(text_edit.font())
    bounding_rect = QRect(0,0, text_edit.width(), 0)
    bounding_rect = fm.boundingRect(bounding_rect, Qt.TextWrapAnywhere,
                                    text_edit.toPlainText())
    text_edit.setFixedHeight(bounding_rect.height())

main_window.show()
app.exec_()
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