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Diffstat (limited to 'gr-qtgui/python/forms/forms.py')
| -rw-r--r-- | gr-qtgui/python/forms/forms.py | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/gr-qtgui/python/forms/forms.py b/gr-qtgui/python/forms/forms.py deleted file mode 100644 index 56ee72499..000000000 --- a/gr-qtgui/python/forms/forms.py +++ /dev/null @@ -1,140 +0,0 @@ -# -# Copyright 2010 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# GNU Radio is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 3, or (at your option) -# any later version. -# -# GNU Radio is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with GNU Radio; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# - -from PyQt4 import QtGui -from PyQt4.QtCore import Qt - -import converters - -######################################################################## -# Base class for all forms -######################################################################## -class _form_base(QtGui.QWidget): - def __init__(self, parent=None, converter=None, callback=None, value=None): - QtGui.QWidget.__init__(self, parent) - self._layout = QtGui.QBoxLayout(QtGui.QBoxLayout.LeftToRight, self) - self._converter = converter - self._callback = callback - self._value = value - - def _add_widget(self, widget, label): - if label: - label_widget = QtGui.QLabel(self) - label_widget.setText('%s: '%label) - self._layout.addWidget(label_widget, True) - self._layout.addWidget(widget, stretch=1) - #disable callback, update, re-enable - callback = self._callback - self._callback = None - self.set_value(self.get_value()) - self._callback = callback - - def get_value(self): - return self._value - - def set_value(self, value): - self._value = value - self._base_update(self._converter.external_to_internal(value)) - - def _base_update(self, int_val): - self._update(int_val) - - def _base_handle(self, int_val): - self._value = self._converter.internal_to_external(int_val) - if self._callback: self._callback(self._value) - -######################################################################## -# Slider base class, shared by log and linear sliders -######################################################################## -class _slider_base(_form_base): - def __init__(self, label='', length=-1, num_steps=100, orient=Qt.Horizontal, **kwargs): - _form_base.__init__(self, **kwargs) - self._slider = QtGui.QSlider(parent=self) - self._slider.setOrientation(orient) - self._slider.setRange(0, num_steps) - if length > 0: - if orient == Qt.Horizontal: - slider_size = self._slider.setWidth(length) - if orient == Qt.Vertical: - slider_size = self._slider.setHeight(length) - self._add_widget(self._slider, label) - self._slider.valueChanged.connect(self._handle) - - def _handle(self, event): - value = self._slider.value() - if self._cache != value: self._base_handle(value) - def _update(self, value): - self._cache = int(round(value)) - self._slider.setValue(self._cache) - -######################################################################## -# Linear slider form -######################################################################## -class slider(_slider_base): - """ - A generic linear slider. - @param parent the parent widget - @param value the default value - @param label title label for this widget (optional) - @param length the length of the slider in px (optional) - @param orient Qt.Horizontal Veritcal (default=horizontal) - @param start the start value - @param stop the stop value - @param num_steps the number of slider steps (or specify step_size) - @param step_size the step between slider jumps (or specify num_steps) - @param cast a cast function, int, or float (default=float) - """ - def __init__(self, start, stop, step=None, num_steps=100, cast=float, **kwargs): - assert step or num_steps - if step is not None: num_steps = (stop - start)/step - converter = converters.slider_converter(start=start, stop=stop, num_steps=num_steps, cast=cast) - _slider_base.__init__(self, converter=converter, num_steps=num_steps, **kwargs) - -######################################################################## -# Text Box Form -######################################################################## -class text_box(_form_base): - """ - A text box form. - @param parent the parent widget - @param sizer add this widget to sizer if provided (optional) - @param value the default value - @param label title label for this widget (optional) - @param converter forms.str_converter(), int_converter(), float_converter()... - """ - def __init__(self, label='', converter=converters.eval_converter(), **kwargs): - _form_base.__init__(self, converter=converter, **kwargs) - self._text_box = QtGui.QLineEdit(self) - self._default_style_sheet = self._text_box.styleSheet() - self._text_box.textChanged.connect(self._set_color_changed) - self._text_box.returnPressed.connect(self._handle) - self._add_widget(self._text_box, label) - - def _set_color_default(self): - self._text_box.setStyleSheet(self._default_style_sheet) - - def _set_color_changed(self, *args): - self._text_box.setStyleSheet("QWidget { background-color: #EEDDDD }") - - def _handle(self): self._base_handle(str(self._text_box.text())) - def _update(self, value): - self._text_box.setText(value) - self._set_color_default() |