diff options
Diffstat (limited to 'examples/corelib/threads/mandelbrot.py')
| -rw-r--r-- | examples/corelib/threads/mandelbrot.py | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/examples/corelib/threads/mandelbrot.py b/examples/corelib/threads/mandelbrot.py index b8cab06ef..4689813d4 100644 --- a/examples/corelib/threads/mandelbrot.py +++ b/examples/corelib/threads/mandelbrot.py @@ -30,7 +30,7 @@ INFO_KEY = 'info' HELP = ("Use mouse wheel or the '+' and '-' keys to zoom. Press and " - "hold left mouse button to scroll.") + "hold left mouse button to scroll.") class RenderThread(QThread): @@ -53,7 +53,8 @@ class RenderThread(QThread): self.abort = False for i in range(RenderThread.colormap_size): - self.colormap.append(self.rgb_from_wave_length(380.0 + (i * 400.0 / RenderThread.colormap_size))) + self.colormap.append( + self.rgb_from_wave_length(380.0 + (i * 400.0 / RenderThread.colormap_size))) def stop(self): self.mutex.lock() @@ -132,7 +133,8 @@ class RenderThread(QThread): if num_iterations < max_iterations: image.setPixel(x + half_width, y + half_height, - self.colormap[num_iterations % RenderThread.colormap_size]) + self.colormap[ + num_iterations % RenderThread.colormap_size]) all_black = False else: image.setPixel(x + half_width, y + half_height, qRgb(0, 0, 0)) @@ -221,7 +223,7 @@ class MandelbrotWidget(QWidget): if self.pixmap.isNull(): painter.setPen(Qt.white) painter.drawText(self.rect(), Qt.AlignCenter, - "Rendering initial image, please wait...") + "Rendering initial image, please wait...") return if self._cur_scale == self._pixmap_scale: @@ -250,10 +252,10 @@ class MandelbrotWidget(QWidget): painter.setPen(Qt.NoPen) painter.setBrush(QColor(0, 0, 0, 127)) painter.drawRect((self.width() - text_width) / 2 - 5, 0, text_width + 10, - metrics.lineSpacing() + 5) + metrics.lineSpacing() + 5) painter.setPen(Qt.white) painter.drawText((self.width() - text_width) / 2, - metrics.leading() + metrics.ascent(), text) + metrics.leading() + metrics.ascent(), text) def resizeEvent(self, event): self.thread.render(self._center_x, self._center_y, self._cur_scale, self.size()) @@ -302,7 +304,7 @@ class MandelbrotWidget(QWidget): delta_y = (self.height() - self.pixmap.height()) / 2 - self._pixmap_offset.y() self.scroll(delta_x, delta_y) - @Slot(QImage,float) + @Slot(QImage, float) def update_pixmap(self, image, scale_factor): if not self._last_drag_pos.isNull(): return @@ -317,15 +319,13 @@ class MandelbrotWidget(QWidget): def zoom(self, zoomFactor): self._cur_scale *= zoomFactor self.update() - self.thread.render(self._center_x, self._center_y, self._cur_scale, - self.size()) + self.thread.render(self._center_x, self._center_y, self._cur_scale, self.size()) def scroll(self, deltaX, deltaY): self._center_x += deltaX * self._cur_scale self._center_y += deltaY * self._cur_scale self.update() - self.thread.render(self._center_x, self._center_y, self._cur_scale, - self.size()) + self.thread.render(self._center_x, self._center_y, self._cur_scale, self.size()) if __name__ == '__main__': |