Source code for pyrocko.gui.util

# http://pyrocko.org - GPLv3
#
# The Pyrocko Developers, 21st Century
# ---|P------/S----------~Lg----------
from __future__ import absolute_import, print_function

import sys
import math
import time
import numpy as num
import logging
import enum

from matplotlib.cm import get_cmap
from matplotlib.colors import Normalize

from .qt_compat import qc, qg, qw, use_pyqt5

from .marker import Marker, PhaseMarker, EventMarker  # noqa
from .marker import MarkerParseError, MarkerOneNSLCRequired  # noqa
from .marker import load_markers, save_markers  # noqa
from pyrocko import plot


if use_pyqt5:
    try:
        from PyQt5.QtWebEngineWidgets import QWebEngineView as WebView
    except (ImportError) as e:
        print(e)
        from PyQt5.QtWebKitWidgets import QWebView as WebView

else:
    from PyQt4.QtWebKit import QWebView as WebView


if sys.version_info > (3,):
    buffer = memoryview


logger = logging.getLogger('pyrocko.gui.util')


def make_QPolygonF(xdata, ydata):
    assert len(xdata) == len(ydata)
    qpoints = qg.QPolygonF(len(ydata))
    vptr = qpoints.data()
    vptr.setsize(len(ydata)*8*2)
    aa = num.ndarray(
        shape=(len(ydata), 2),
        dtype=num.float64,
        buffer=buffer(vptr))
    aa.setflags(write=True)
    aa[:, 0] = xdata
    aa[:, 1] = ydata
    return qpoints


def get_colormap_qimage(cmap_name, vmin=None, vmax=None):
    NCOLORS = 512
    norm = Normalize()
    norm.vmin = vmin
    norm.vmax = vmax

    return qg.QImage(
        get_cmap(cmap_name)(
            norm(num.linspace(0., 1., NCOLORS)),
            alpha=None, bytes=True),
        NCOLORS, 1, qg.QImage.Format_RGBX8888)


class Label(object):
    def __init__(
            self, p, x, y, label_str,
            label_bg=None,
            anchor='BL',
            outline=False,
            font=None,
            color=None):

        text = qg.QTextDocument()
        if font:
            text.setDefaultFont(font)
        text.setDefaultStyleSheet('span { color: %s; }' % color.name())
        text.setHtml('<span>%s</span>' % label_str)
        s = text.size()
        rect = qc.QRectF(0., 0., s.width(), s.height())
        tx, ty = x, y

        if 'B' in anchor:
            ty -= rect.height()
        if 'R' in anchor:
            tx -= rect.width()
        if 'M' in anchor:
            ty -= rect.height()/2.
        if 'C' in anchor:
            tx -= rect.width()/2.

        rect.translate(tx, ty)
        self.rect = rect
        self.text = text
        self.outline = outline
        self.label_bg = label_bg
        self.color = color
        self.p = p

    def draw(self):
        p = self.p
        rect = self.rect
        tx = rect.left()
        ty = rect.top()

        if self.outline:
            oldpen = p.pen()
            oldbrush = p.brush()
            p.setBrush(self.label_bg)
            rect.adjust(-2., 0., 2., 0.)
            p.drawRect(rect)
            p.setPen(oldpen)
            p.setBrush(oldbrush)

        else:
            if self.label_bg:
                p.fillRect(rect, self.label_bg)

        p.translate(tx, ty)
        self.text.drawContents(p)
        p.translate(-tx, -ty)


def draw_label(p, x, y, label_str, label_bg, anchor='BL', outline=False):
    fm = p.fontMetrics()

    label = label_str
    rect = fm.boundingRect(label)

    tx, ty = x, y
    if 'T' in anchor:
        ty += rect.height()
    if 'R' in anchor:
        tx -= rect.width()
    if 'M' in anchor:
        ty += rect.height()/2.
    if 'C' in anchor:
        tx -= rect.width()/2.

    rect.translate(tx, ty)
    if outline:
        oldpen = p.pen()
        oldbrush = p.brush()
        p.setBrush(label_bg)
        rect.adjust(-2., 0., 2., 0.)
        p.drawRect(rect)
        p.setPen(oldpen)
        p.setBrush(oldbrush)

    else:
        p.fillRect(rect, label_bg)

    p.drawText(tx, ty, label)


def get_err_palette():
    err_palette = qg.QPalette()
    err_palette.setColor(qg.QPalette.Base, qg.QColor(255, 200, 200))
    return err_palette


[docs]class QSliderNoWheel(qw.QSlider):
[docs] def wheelEvent(self, ev): ev.ignore()
[docs] def keyPressEvent(self, ev): ev.ignore()
[docs]class MyValueEdit(qw.QLineEdit): edited = qc.pyqtSignal(float) def __init__( self, low_is_none=False, high_is_none=False, low_is_zero=False, *args, **kwargs): qw.QLineEdit.__init__(self, *args, **kwargs) self.value = 0. self.mi = 0. self.ma = 1. self.low_is_none = low_is_none self.high_is_none = high_is_none self.low_is_zero = low_is_zero self.editingFinished.connect( self.myEditingFinished) self.lock = False def setRange(self, mi, ma): self.mi = mi self.ma = ma def setValue(self, value): if not self.lock: self.value = value self.setPalette(qw.QApplication.palette()) self.adjust_text() def myEditingFinished(self): try: t = str(self.text()).strip() if self.low_is_none and t in ('off', 'below'): value = self.mi elif self.high_is_none and t in ('off', 'above'): value = self.ma elif self.low_is_zero and float(t) == 0.0: value = self.mi else: value = float(t) if not (self.mi <= value <= self.ma): raise Exception("out of range") if value != self.value: self.value = value self.lock = True self.edited.emit(value) self.setPalette(qw.QApplication.palette()) except Exception: self.setPalette(get_err_palette()) self.lock = False def adjust_text(self): t = ('%8.5g' % self.value).strip() if self.low_is_zero and self.value == self.mi: t = '0' if self.low_is_none and self.value == self.mi: if self.high_is_none: t = 'below' else: t = 'off' if self.high_is_none and self.value == self.ma: if self.low_is_none: t = 'above' else: t = 'off' if t in ('off', 'below', 'above'): self.setStyleSheet("font-style: italic;") else: self.setStyleSheet(None) self.setText(t)
[docs]class ValControl(qw.QWidget): valchange = qc.pyqtSignal(object, int) def __init__( self, low_is_none=False, high_is_none=False, low_is_zero=False, type=float, *args): qc.QObject.__init__(self, *args) self.lname = qw.QLabel("name") self.lname.setSizePolicy( qw.QSizePolicy(qw.QSizePolicy.Minimum, qw.QSizePolicy.Minimum)) self.lvalue = MyValueEdit( low_is_none=low_is_none, high_is_none=high_is_none, low_is_zero=low_is_zero) self.lvalue.setFixedWidth(100) self.slider = QSliderNoWheel(qc.Qt.Horizontal) self.slider.setSizePolicy( qw.QSizePolicy(qw.QSizePolicy.Expanding, qw.QSizePolicy.Minimum)) self.slider.setMaximum(10000) self.slider.setSingleStep(100) self.slider.setPageStep(1000) self.slider.setTickPosition(qw.QSlider.NoTicks) self.slider.setFocusPolicy(qc.Qt.ClickFocus) self.low_is_none = low_is_none self.high_is_none = high_is_none self.low_is_zero = low_is_zero self.slider.valueChanged.connect( self.slided) self.lvalue.edited.connect( self.edited) self.type = type self.mute = False def widgets(self): return self.lname, self.lvalue, self.slider def s2v(self, svalue): if self.ma == 0 or self.mi == 0: return 0 a = math.log(self.ma/self.mi) / 10000. value = self.mi*math.exp(a*svalue) value = self.type(value) return value def v2s(self, value): value = self.type(value) if value == 0 or self.mi == 0: return 0 a = math.log(self.ma/self.mi) / 10000. return int(round(math.log(value/self.mi) / a)) def setup(self, name, mi, ma, cur, ind): self.lname.setText(name) self.mi = mi self.ma = ma self.ind = ind self.lvalue.setRange(self.s2v(0), self.s2v(10000)) self.set_value(cur) def set_range(self, mi, ma): if self.mi == mi and self.ma == ma: return vput = None if self.cursl == 0: vput = mi if self.cursl == 10000: vput = ma self.mi = mi self.ma = ma self.lvalue.setRange(self.s2v(0), self.s2v(10000)) if vput is not None: self.set_value(vput) else: if self.cur < mi: self.set_value(mi) if self.cur > ma: self.set_value(ma) def set_value(self, cur): if cur is None: if self.low_is_none: cur = self.mi elif self.high_is_none: cur = self.ma if cur == 0.0: if self.low_is_zero: cur = self.mi self.mute = True self.cur = cur self.cursl = self.v2s(cur) self.slider.blockSignals(True) self.slider.setValue(self.cursl) self.slider.blockSignals(False) self.lvalue.blockSignals(True) if self.cursl in (0, 10000): self.lvalue.setValue(self.s2v(self.cursl)) else: self.lvalue.setValue(self.cur) self.lvalue.blockSignals(False) self.mute = False def set_tracking(self, tracking): self.slider.setTracking(tracking) def get_value(self): return self.cur def slided(self, val): if self.cursl != val: self.cursl = val cur = self.s2v(self.cursl) if cur != self.cur: self.cur = cur self.lvalue.blockSignals(True) self.lvalue.setValue(self.cur) self.lvalue.blockSignals(False) self.fire_valchange() def edited(self, val): if self.cur != val: self.cur = val cursl = self.v2s(val) if (cursl != self.cursl): self.slider.blockSignals(True) self.slider.setValue(cursl) self.slider.blockSignals(False) self.cursl = cursl self.fire_valchange() def fire_valchange(self): if self.mute: return cur = self.cur if self.cursl == 0: if self.low_is_none: cur = None elif self.low_is_zero: cur = 0.0 if self.cursl == 10000 and self.high_is_none: cur = None self.valchange.emit(cur, int(self.ind))
[docs]class LinValControl(ValControl): def s2v(self, svalue): value = svalue/10000. * (self.ma-self.mi) + self.mi value = self.type(value) return value def v2s(self, value): value = self.type(value) if self.ma == self.mi: return 0 return int(round((value-self.mi)/(self.ma-self.mi) * 10000.))
[docs]class ColorbarControl(qw.QWidget): AVAILABLE_CMAPS = ( 'viridis', 'plasma', 'magma', 'binary', 'Reds', 'copper', 'seismic', 'RdBu', 'YlGn', ) DEFAULT_CMAP = 'viridis' cmap_changed = qc.pyqtSignal(str) show_absolute_toggled = qc.pyqtSignal(bool) show_integrate_toggled = qc.pyqtSignal(bool) def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) self.lname = qw.QLabel("Colormap") self.lname.setSizePolicy( qw.QSizePolicy(qw.QSizePolicy.Minimum, qw.QSizePolicy.Minimum)) self.cmap_options = qw.QComboBox() self.cmap_options.setIconSize(qc.QSize(64, 12)) for ic, cmap in enumerate(self.AVAILABLE_CMAPS): pixmap = qg.QPixmap.fromImage( get_colormap_qimage(cmap)) icon = qg.QIcon(pixmap.scaled(64, 12)) self.cmap_options.addItem(icon, '', cmap) self.cmap_options.setItemData(ic, cmap, qc.Qt.ToolTipRole) # self.cmap_options.setCurrentIndex(self.cmap_name) self.cmap_options.currentIndexChanged.connect(self.set_cmap) self.cmap_options.setSizePolicy( qw.QSizePolicy(qw.QSizePolicy.Minimum, qw.QSizePolicy.Minimum)) self.colorslider = ColorbarSlider(self) self.colorslider.setSizePolicy( qw.QSizePolicy.MinimumExpanding | qw.QSizePolicy.ExpandFlag, qw.QSizePolicy.MinimumExpanding | qw.QSizePolicy.ExpandFlag ) self.clip_changed = self.colorslider.clip_changed btn_size = qw.QSizePolicy( qw.QSizePolicy.Maximum | qw.QSizePolicy.ShrinkFlag, qw.QSizePolicy.Maximum | qw.QSizePolicy.ShrinkFlag) self.symetry_toggle = qw.QPushButton() self.symetry_toggle.setIcon( qg.QIcon.fromTheme('object-flip-horizontal')) self.symetry_toggle.setToolTip('Symetric clip values') self.symetry_toggle.setSizePolicy(btn_size) self.symetry_toggle.setCheckable(True) self.symetry_toggle.toggled.connect(self.toggle_symetry) self.symetry_toggle.setChecked(True) self.reverse_toggle = qw.QPushButton() self.reverse_toggle.setIcon( qg.QIcon.fromTheme('object-rotate-right')) self.reverse_toggle.setToolTip('Reverse the colormap') self.reverse_toggle.setSizePolicy(btn_size) self.reverse_toggle.setCheckable(True) self.reverse_toggle.toggled.connect(self.toggle_reverse_cmap) self.abs_toggle = qw.QPushButton() self.abs_toggle.setIcon( qg.QIcon.fromTheme('go-bottom')) self.abs_toggle.setToolTip('Show absolute values') self.abs_toggle.setSizePolicy(btn_size) self.abs_toggle.setCheckable(True) self.abs_toggle.toggled.connect(self.toggle_absolute) self.int_toggle = qw.QPushButton() self.int_toggle.setText('∫') self.int_toggle.setToolTip( u'Integrate traces (e.g. strain rate → strain)') self.int_toggle.setSizePolicy(btn_size) self.int_toggle.setCheckable(True) print(self.abs_toggle.width()) self.int_toggle.setMaximumSize( 24, self.int_toggle.maximumSize().height()) self.int_toggle.toggled.connect(self.show_integrate_toggled.emit) v_splitter = qw.QFrame() v_splitter.setFrameShape(qw.QFrame.VLine) v_splitter.setFrameShadow(qw.QFrame.Sunken) self.controls = qw.QWidget() layout = qw.QHBoxLayout() layout.addWidget(self.colorslider) layout.addWidget(self.symetry_toggle) layout.addWidget(self.reverse_toggle) layout.addWidget(v_splitter) layout.addWidget(self.abs_toggle) layout.addWidget(self.int_toggle) self.controls.setLayout(layout) self.set_cmap_name(self.DEFAULT_CMAP) def set_cmap(self, idx): self.set_cmap_name(self.cmap_options.itemData(idx)) def set_cmap_name(self, cmap_name): self.cmap_name = cmap_name self.colorslider.set_cmap_name(cmap_name) self.cmap_changed.emit(cmap_name) def get_cmap(self): return self.cmap_name def toggle_symetry(self, toggled): self.colorslider.set_symetry(toggled) def toggle_reverse_cmap(self): cmap = self.get_cmap() if cmap.endswith('_r'): r_cmap = cmap.rstrip('_r') else: r_cmap = cmap + '_r' self.set_cmap_name(r_cmap) def toggle_absolute(self, toggled): self.symetry_toggle.setChecked(not toggled) self.show_absolute_toggled.emit(toggled) def widgets(self): return (self.lname, self.cmap_options, self.controls)
[docs]class ColorbarSlider(qw.QWidget): DEFAULT_CMAP = 'viridis' CORNER_THRESHOLD = 10 MIN_WIDTH = .05 clip_changed = qc.pyqtSignal(float, float)
[docs] class COMPONENTS(enum.Enum): LeftLine = 1 RightLine = 2 Center = 3
def __init__(self, *args, cmap_name=None): super().__init__() self.cmap_name = cmap_name or self.DEFAULT_CMAP self.clip_min = 0. self.clip_max = 1. self._sym_locked = True self._mouse_inside = False self._window = None self._old_pos = None self._component_grabbed = None self.setMouseTracking(True) def set_cmap_name(self, cmap_name): self.cmap_name = cmap_name self.repaint() def get_cmap_name(self): return self.cmap_name def set_symetry(self, symetry): self._sym_locked = symetry if self._sym_locked: clip_max = 1. - min(self.clip_min, 1.-self.clip_max) clip_min = 1. - clip_max self.set_clip(clip_min, clip_max) def _set_window(self, window): self._window = window def _get_left_line(self): rect = self._get_active_rect() if not rect: return return qc.QLineF(rect.left(), 0, rect.left(), rect.height()) def _get_right_line(self): rect = self._get_active_rect() if not rect: return return qc.QLineF(rect.right(), 0, rect.right(), rect.height()) def _get_active_rect(self): if not self._window: return rect = qc.QRect(self._window) width = rect.width() rect.setLeft(width * self.clip_min) rect.setRight(width * self.clip_max) return rect def set_clip(self, clip_min, clip_max): if clip_min < 0. or clip_max > 1.: return if clip_max - clip_min < self.MIN_WIDTH: return self.clip_min = clip_min self.clip_max = clip_max self.repaint() self.clip_changed.emit(self.clip_min, self.clip_max)
[docs] def mousePressEvent(self, event): act_rect = self._get_active_rect() if event.buttons() != qc.Qt.MouseButton.LeftButton: self._component_grabbed = None return dist_left = abs(event.pos().x() - act_rect.left()) dist_right = abs(event.pos().x() - act_rect.right()) if 0 < dist_left < self.CORNER_THRESHOLD: self._component_grabbed = self.COMPONENTS.LeftLine self.setCursor(qg.QCursor(qc.Qt.CursorShape.SizeHorCursor)) elif 0 < dist_right < self.CORNER_THRESHOLD: self._component_grabbed = self.COMPONENTS.RightLine self.setCursor(qg.QCursor(qc.Qt.CursorShape.SizeHorCursor)) else: self.setCursor(qg.QCursor())
[docs] def mouseReleaseEvent(self, event): self._component_grabbed = None self.repaint()
[docs] def mouseDoubleClickEvent(self, event): self.set_clip(0., 1.)
[docs] def wheelEvent(self, event): event.accept() if not self._sym_locked: return if use_pyqt5: delta = event.angleDelta().y() else: delta = event.delta() delta = -delta / 5e3 clip_min_new = max(self.clip_min + delta, 0.) clip_max_new = min(self.clip_max - delta, 1.) self._mouse_inside = True self.set_clip(clip_min_new, clip_max_new)
[docs] def mouseMoveEvent(self, event): act_rect = self._get_active_rect() if not self._component_grabbed: dist_left = abs(event.pos().x() - act_rect.left()) dist_right = abs(event.pos().x() - act_rect.right()) if 0 <= dist_left < self.CORNER_THRESHOLD or \ 0 <= dist_right < self.CORNER_THRESHOLD: self.setCursor(qg.QCursor(qc.Qt.CursorShape.SizeHorCursor)) else: self.setCursor(qg.QCursor()) if self._old_pos and self._component_grabbed: shift = (event.pos() - self._old_pos).x() / self._window.width() if self._component_grabbed is self.COMPONENTS.LeftLine: clip_min_new = max(self.clip_min + shift, 0.) clip_max_new = \ min(self.clip_max - shift, 1.) \ if self._sym_locked else self.clip_max elif self._component_grabbed is self.COMPONENTS.RightLine: clip_max_new = min(self.clip_max + shift, 1.) clip_min_new = \ max(self.clip_min - shift, 0.) \ if self._sym_locked else self.clip_min self.set_clip(clip_min_new, clip_max_new) self._old_pos = event.pos()
[docs] def enterEvent(self, e): self._mouse_inside = True self.repaint()
[docs] def leaveEvent(self, e): self._mouse_inside = False self.repaint()
[docs] def paintEvent(self, e): p = qg.QPainter(self) self._set_window(p.window()) p.drawImage( p.window(), get_colormap_qimage(self.cmap_name, self.clip_min, self.clip_max)) left_line = self._get_left_line() right_line = self._get_right_line() pen = qg.QPen() pen.setWidth(2) pen.setStyle(qc.Qt.DotLine) pen.setBrush(qc.Qt.white) p.setPen(pen) p.setCompositionMode( qg.QPainter.CompositionMode.CompositionMode_Difference) p.drawLine(left_line) p.drawLine(right_line) label_rect = self._get_active_rect() label_rect.setLeft(label_rect.left() + 5) label_rect.setRight(label_rect.right() - 5) label_left_rect = qc.QRectF(label_rect) label_right_rect = qc.QRectF(label_rect) label_left_align = qc.Qt.AlignLeft label_right_align = qc.Qt.AlignRight if label_rect.left() > 50: label_left_rect.setRight(label_rect.left() - 10) label_left_rect.setLeft(0) label_left_align = qc.Qt.AlignRight if self._window.right() - label_rect.right() > 50: label_right_rect.setLeft(label_rect.right() + 10) label_right_rect.setRight(self._window.right()) label_right_align = qc.Qt.AlignLeft if self._mouse_inside or self._component_grabbed: p.drawText( label_left_rect, label_left_align | qc.Qt.AlignVCenter, '%d%%' % round(self.clip_min * 100)) p.drawText( label_right_rect, label_right_align | qc.Qt.AlignVCenter, '%d%%' % round(self.clip_max * 100))
class Progressbar(object): def __init__(self, parent, name, can_abort=True): self.parent = parent self.name = name self.label = qw.QLabel(name, parent) self.pbar = qw.QProgressBar(parent) self.aborted = False self.time_last_update = 0. if can_abort: self.abort_button = qw.QPushButton('Abort', parent) self.abort_button.clicked.connect( self.abort) else: self.abort_button = None def widgets(self): widgets = [self.label, self.bar()] if self.abort_button: widgets.append(self.abort_button) return widgets def bar(self): return self.pbar def abort(self): self.aborted = True
[docs]class Progressbars(qw.QFrame): def __init__(self, parent): qw.QFrame.__init__(self, parent) self.layout = qw.QGridLayout() self.setLayout(self.layout) self.bars = {} self.start_times = {} self.hide() def set_status(self, name, value, can_abort=True): value = int(round(value)) now = time.time() if name not in self.start_times: self.start_times[name] = now return False else: if now < self.start_times[name] + 1.0: if value == 100: del self.start_times[name] return False self.start_times.get(name, 0.0) if name not in self.bars: if value == 100: return False self.bars[name] = Progressbar(self, name, can_abort=can_abort) self.make_layout() bar = self.bars[name] if bar.time_last_update < now - 0.1 or value == 100: bar.bar().setValue(value) bar.time_last_update = now if value == 100: del self.bars[name] del self.start_times[name] self.make_layout() for w in bar.widgets(): w.setParent(None) return bar.aborted def make_layout(self): while True: c = self.layout.takeAt(0) if c is None: break for ibar, bar in enumerate(self.bars.values()): for iw, w in enumerate(bar.widgets()): self.layout.addWidget(w, ibar, iw) if not self.bars: self.hide() else: self.show()
def tohex(c): return '%02x%02x%02x' % c def to01(c): return c[0]/255., c[1]/255., c[2]/255. def beautify_axes(axes): try: from cycler import cycler axes.set_prop_cycle( cycler('color', [to01(x) for x in plot.graph_colors])) except (ImportError, KeyError): axes.set_color_cycle(list(map(to01, plot.graph_colors))) xa = axes.get_xaxis() ya = axes.get_yaxis() for attr in ('labelpad', 'LABELPAD'): if hasattr(xa, attr): setattr(xa, attr, xa.get_label().get_fontsize()) setattr(ya, attr, ya.get_label().get_fontsize()) break
[docs]class FigureFrame(qw.QFrame): def __init__(self, parent=None): qw.QFrame.__init__(self, parent) # bgrgb = self.palette().color(qw.QPalette.Window).getRgb()[:3] fgcolor = plot.tango_colors['aluminium5'] dpi = 0.5*(self.logicalDpiX() + self.logicalDpiY()) font = qg.QFont() font.setBold(True) fontsize = font.pointSize() import matplotlib matplotlib.rcdefaults() if use_pyqt5: try: matplotlib.rcParams['backend'] = 'Qt5Agg' except ValueError: matplotlib.rcParams['backend'] = 'Qt4Agg' else: matplotlib.rcParams['backend'] = 'Qt4Agg' matplotlib.rc('xtick', direction='out', labelsize=fontsize) matplotlib.rc('ytick', direction='out', labelsize=fontsize) matplotlib.rc('xtick.major', size=8, width=1) matplotlib.rc('xtick.minor', size=4, width=1) matplotlib.rc('ytick.major', size=8, width=1) matplotlib.rc('ytick.minor', size=4, width=1) matplotlib.rc('figure', facecolor='white', edgecolor=tohex(fgcolor)) matplotlib.rc( 'font', family='sans-serif', weight='bold', size=fontsize, **{'sans-serif': [ font.family(), 'DejaVu Sans', 'Bitstream Vera Sans', 'Lucida Grande', 'Verdana', 'Geneva', 'Lucid', 'Arial', 'Helvetica']}) matplotlib.rc('legend', fontsize=fontsize) matplotlib.rc('text', color=tohex(fgcolor)) matplotlib.rc('xtick', color=tohex(fgcolor)) matplotlib.rc('ytick', color=tohex(fgcolor)) matplotlib.rc('figure.subplot', bottom=0.15) matplotlib.rc('axes', linewidth=1.0, unicode_minus=False) matplotlib.rc( 'axes', facecolor='white', edgecolor=tohex(fgcolor), labelcolor=tohex(fgcolor)) try: from cycler import cycler matplotlib.rc( 'axes', prop_cycle=cycler( 'color', [to01(x) for x in plot.graph_colors])) except (ImportError, KeyError): try: matplotlib.rc('axes', color_cycle=[ to01(x) for x in plot.graph_colors]) except KeyError: pass try: matplotlib.rc('axes', labelsize=fontsize) except KeyError: pass try: matplotlib.rc('axes', labelweight='bold') except KeyError: pass from matplotlib.figure import Figure if use_pyqt5: from matplotlib.backends.backend_qt5agg import \ NavigationToolbar2QT as NavigationToolbar from matplotlib.backends.backend_qt5agg \ import FigureCanvasQTAgg as FigureCanvas else: try: from matplotlib.backends.backend_qt4agg import \ NavigationToolbar2QTAgg as NavigationToolbar except ImportError: from matplotlib.backends.backend_qt4agg import \ NavigationToolbar2QT as NavigationToolbar from matplotlib.backends.backend_qt4agg \ import FigureCanvasQTAgg as FigureCanvas layout = qw.QGridLayout() layout.setContentsMargins(0, 0, 0, 0) layout.setSpacing(0) self.setLayout(layout) self.figure = Figure(dpi=dpi) self.canvas = FigureCanvas(self.figure) self.canvas.setParent(self) self.toolbar = NavigationToolbar(self.canvas, self) layout.addWidget(self.toolbar, 0, 0) layout.addWidget(self.canvas, 1, 0) self.closed = False def gca(self): axes = self.figure.gca() beautify_axes(axes) return axes def gcf(self): return self.figure
[docs] def draw(self): ''' Draw with AGG, then queue for Qt update. ''' self.canvas.draw()
[docs] def closeEvent(self, ev): self.closed = True
[docs]class WebKitFrame(qw.QFrame): def __init__(self, url=None, parent=None): qw.QFrame.__init__(self, parent) layout = qw.QGridLayout() layout.setContentsMargins(0, 0, 0, 0) layout.setSpacing(0) self.setLayout(layout) self.web_widget = WebView() layout.addWidget(self.web_widget, 0, 0) if url: self.web_widget.load(qc.QUrl(url))
[docs]class VTKFrame(qw.QFrame): def __init__(self, actors=None, parent=None): import vtk from vtk.qt4.QVTKRenderWindowInteractor import \ QVTKRenderWindowInteractor qw.QFrame.__init__(self, parent) layout = qw.QGridLayout() layout.setContentsMargins(0, 0, 0, 0) layout.setSpacing(0) self.setLayout(layout) self.vtk_widget = QVTKRenderWindowInteractor(self) layout.addWidget(self.vtk_widget, 0, 0) self.renderer = vtk.vtkRenderer() self.vtk_widget.GetRenderWindow().AddRenderer(self.renderer) self.iren = self.vtk_widget.GetRenderWindow().GetInteractor() if actors: for a in actors: self.renderer.AddActor(a) def init(self): self.iren.Initialize() def add_actor(self, actor): self.renderer.AddActor(actor)
[docs]class PixmapFrame(qw.QLabel): def __init__(self, filename=None, parent=None): qw.QLabel.__init__(self, parent) self.setAlignment(qc.Qt.AlignCenter) self.setContentsMargins(0, 0, 0, 0) self.menu = qw.QMenu(self) action = qw.QAction('Save as', self.menu) action.triggered.connect(self.save_pixmap) self.menu.addAction(action) if filename: self.load_pixmap(filename)
[docs] def contextMenuEvent(self, event): self.menu.popup(qg.QCursor.pos())
def load_pixmap(self, filename): self.pixmap = qg.QPixmap(filename) self.setPixmap(self.pixmap) def save_pixmap(self, filename=None): if not filename: filename, _ = qw.QFileDialog.getSaveFileName( self.parent(), caption='save as') self.pixmap.save(filename)