def createPixmap(self):
"""Creates the pixmap shown when this label is dragged."""
font_metric = QFontMetrics(QFont())
text_size = font_metric.size(Qt.TextSingleLine, self.text)
image = QImage(text_size.width() + 4, text_size.height() + 4,
QImage.Format_ARGB32_Premultiplied)
image.fill(qRgba(240, 240, 120, 255))
painter = QPainter()
painter.begin(image)
painter.setFont(QFont())
painter.setBrush(Qt.black)
painter.drawText(QRect(QPoint(2, 2), text_size), Qt.AlignCenter,
self.text)
painter.end()
return image
def drawIconWithShadow(icon, rect, p, iconMode, radius, color, offset):
cache = QPixmap()
pixmapName = "icon {0} {1} {2}".format(icon.cacheKey(), iconMode, rect.height())
if not QPixmapCache.find(pixmapName, cache):
px = icon.pixmap(rect.size())
cache = QPixmap(px.size() + QSize(radius * 2, radius * 2))
cache.fill(Qt.transparent)
cachePainter = QPainter(cache)
if iconMode == QIcon.Disabled:
im = px.toImage().convertToFormat(QImage.Format_ARGB32)
for y in range(im.height()):
scanLine = im.scanLine(y)
for x in range(im.width()):
pixel = scanLine
intensity = qGray(pixel)
scanLine = qRgba(intensity, intensity, intensity, qAlpha(pixel))
scanLine += 1
px = QPixmap.fromImage(im)
# Draw shadow
tmp = QImage(px.size() + QSize(radius * 2, radius * 2 + 1), QImage.Format_ARGB32_Premultiplied)
tmp.fill(Qt.transparent)
tmpPainter = QPainter(tmp)
tmpPainter.setCompositionMode(QPainter.CompositionMode_Source)
tmpPainter.drawPixmap(QPoint(radius, radius), px)
tmpPainter.end()
# blur the alpha channel
blurred = QImage(tmp.size(), QImage.Format_ARGB32_Premultiplied)
blurred.fill(Qt.transparent)
blurPainter = QPainter(blurred)
# todo : blur image
blurPainter.end()
tmp = blurred
# blacken the image
tmpPainter.begin(tmp)
tmpPainter.setCompositionMode(QPainter.CompositionMode_SourceIn)
tmpPainter.fillRect(tmp.rect(), color)
tmpPainter.end()
tmpPainter.begin(tmp)
tmpPainter.setCompositionMode(QPainter.CompositionMode_SourceIn)
tmpPainter.fillRect(tmp.rect(), color)
tmpPainter.end()
# draw the blurred drop shadow...
cachePainter.drawImage(QRect(0, 0, cache.rect().width(), cache.rect().height()), tmp)
# Draw the actual pixmap...
cachePainter.drawPixmap(QPoint(radius, radius) + offset, px)
QPixmapCache.insert(pixmapName, cache)
targetRect = cache.rect()
targetRect.moveCenter(rect.center())
p.drawPixmap(targetRect.topLeft() - offset, cache)
def render(self, fileName, width, height):
self.setViewportSize(QSize(width, height))
fileInfo = QFileInfo(fileName)
dir = QDir()
dir.mkpath(fileInfo.absolutePath())
viewportSize = self.viewportSize()
pageSize = self.mainFrame().contentsSize()
if pageSize.isEmpty():
return False
buffer = QImage(pageSize, QImage.Format_ARGB32)
buffer.fill(qRgba(255, 255, 255, 0))
p = QPainter(buffer)
p.setRenderHint( QPainter.Antialiasing, True)
p.setRenderHint( QPainter.TextAntialiasing, True)
p.setRenderHint( QPainter.SmoothPixmapTransform, True)
self.setViewportSize(pageSize)
self.mainFrame().render(p)
p.end()
self.setViewportSize(viewportSize)
return buffer.save(fileName)
def __init__(self, color_map, width, height):
"""Creates a QImage of width by height from the given colormap."""
super(ColorBarImage, self).__init__(width, height,
QImage.Format_ARGB32_Premultiplied)
# Qborder - this is black all the way around
# The commented out parts were for white in one corner
# but didn't come out nicely
for w in range(width):
#self.setPixel(w, 0, qRgba(255, 255, 255, 255))
self.setPixel(w, 0, qRgba(0, 0, 0, 255))
self.setPixel(w, height - 1, qRgba(0, 0, 0, 255))
for h in range(height):
self.setPixel(0, h, qRgba(0, 0, 0, 255))
self.setPixel(width - 1, h, qRgba(0, 0, 0, 0))
#self.setPixel(width - 1, h, qRgba(255, 255, 255, 255))
# Draws the color map lineby line
pixel_value = 1.0 / width
for w in range(width-2):
color_np = color_map(w * pixel_value)
color_rgba = qRgba(*[round(255 * x) for x in color_np])
for h in range(height-2):
self.setPixel(w + 1, h + 1, color_rgba)
def __init__(self, color_map, width, height):
"""Creates a QImage of width by height from the given colormap."""
super(ColorBarImage, self).__init__(width, height,
QImage.Format_ARGB32_Premultiplied)
# Qborder - this is black all the way around
# The commented out parts were for white in one corner
# but didn't come out nicely
for w in range(width):
#self.setPixel(w, 0, qRgba(255, 255, 255, 255))
self.setPixel(w, 0, qRgba(0, 0, 0, 255))
self.setPixel(w, height - 1, qRgba(0, 0, 0, 255))
for h in range(height):
self.setPixel(0, h, qRgba(0, 0, 0, 255))
self.setPixel(width - 1, h, qRgba(0, 0, 0, 0))
#self.setPixel(width - 1, h, qRgba(255, 255, 255, 255))
# Draws the color map lineby line
pixel_value = 1.0 / width
for w in range(width - 2):
color_np = color_map(w * pixel_value)
color_rgba = qRgba(*[round(255 * x) for x in color_np])
for h in range(height - 2):
self.setPixel(w + 1, h + 1, color_rgba)
def createPixmap(self):
"""Creates the pixmap shown when this label is dragged."""
font_metric = QFontMetrics(QFont())
text_size = font_metric.size(Qt.TextSingleLine, self.text)
image = QImage(text_size.width() + 4,
text_size.height() + 4,
QImage.Format_ARGB32_Premultiplied)
image.fill(qRgba(240, 240, 120, 255))
painter = QPainter()
painter.begin(image)
painter.setFont(QFont())
painter.setBrush(Qt.black)
painter.drawText(QRect(QPoint(2, 2), text_size), Qt.AlignCenter,
self.text)
painter.end()
return image
def apply_filter(self, canvas):
if canvas is None:
return
# TODO: реализовать
# canvas.clearSelection();
self.make_undo_command(canvas)
im = canvas.image
for y in range(im.height()):
for x in range(im.width()):
pixel = im.pixel(x, y)
gray = qGray(pixel)
alpha = qAlpha(pixel)
im.setPixel(x, y, qRgba(gray, gray, gray, alpha))
canvas.edited = True
canvas.update()
def apply_filter(self, canvas):
if canvas is None:
return
# TODO: реализовать
# canvas.clearSelection();
self.make_undo_command(canvas)
im = canvas.image
for y in range(im.height()):
for x in range(im.width()):
pixel = im.pixel(x, y)
gray = qGray(pixel)
alpha = qAlpha(pixel)
im.setPixel(x, y, qRgba(gray, gray, gray, alpha))
canvas.edited = True
canvas.update()
