def create_color_picker_dialog(self):
c = ColorPaletteDlg(self, "Color Palette")
c.createDiscretePalette(DISCRETE_PALETTE, "Discrete Palette")
c.createContinuousPalette(CONTINUOUS_PALETTE, "Continuous Palette")
box = c.createBox("otherColors", "Other Colors")
c.createColorButton(box, CANVAS_COLOR, "Canvas color", self.graph.color(OWPalette.Canvas))
c.setColorSchemas(self.color_settings, self.selected_schema_index)
return c
def test_colorpalette(self):
dlg = ColorPaletteDlg(None)
dlg.createContinuousPalette("", "Gradient palette", False,
QColor(Qt.white), QColor(Qt.black))
dlg.contLeft.getColor().getRgb()
dlg.contRight.getColor().getRgb()
dlg.contpassThroughBlack
def test_colorpalette(self):
dlg = ColorPaletteDlg(None)
dlg.createContinuousPalette(
"", "Gradient palette", False, QColor(Qt.white), QColor(Qt.black))
dlg.contLeft.getColor().getRgb()
dlg.contRight.getColor().getRgb()
dlg.contpassThroughBlack
def update_properties(self):
## Mostly copied from OWScatterPlotGraph
if not self.plot():
return
if not self.rect:
x, y = self.axes()
self.rect = self.plot().data_rect_for_axes(x, y)
s = self.graph_transform().mapRect(self.rect).size().toSize()
if not s.isValid():
return
rx = s.width()
ry = s.height()
rx -= rx % self.granularity
ry -= ry % self.granularity
p = self.graph_transform().map(QPointF(
0, 0)) - self.graph_transform().map(self.rect.topLeft())
p = p.toPoint()
ox = p.x()
oy = -p.y()
if self.classifier.classVar.is_continuous:
imagebmp = orangeom.potentialsBitmap(self.classifier, rx, ry, ox,
oy, self.granularity,
self.scale)
palette = [
qRgb(255. * i / 255., 255. * i / 255., 255 - (255. * i / 255.))
for i in range(255)
] + [qRgb(255, 255, 255)]
else:
imagebmp, nShades = orangeom.potentialsBitmap(
self.classifier, rx, ry, ox, oy, self.granularity, self.scale,
self.spacing)
palette = []
sortedClasses = get_variable_values_sorted(
self.classifier.domain.classVar)
for cls in self.classifier.classVar.values:
color = self.plot().discPalette.getRGB(
sortedClasses.index(cls))
towhite = [255 - c for c in color]
for s in range(nShades):
si = 1 - float(s) / nShades
palette.append(
qRgb(*tuple(
[color[i] + towhite[i] * si for i in (0, 1, 2)])))
palette.extend(
[qRgb(255, 255, 255) for i in range(256 - len(palette))])
self.potentialsImage = QImage(imagebmp, rx, ry, QImage.Format_Indexed8)
self.potentialsImage.setColorTable(
ColorPaletteDlg.signedPalette(palette
) if qVersion() < "4.5" else palette)
self.potentialsImage.setNumColors(256)
self.pixmap_item.setPixmap(QPixmap.fromImage(self.potentialsImage))
self.pixmap_item.setPos(self.graph_transform().map(
self.rect.bottomLeft()))
def change_color(self, index):
from_c, to_c, black = self.model().data(index, ColorRole)
master = self.master
dlg = ColorPaletteDlg(master)
dlg.createContinuousPalette("", "Gradient palette", black,
QColor(*from_c), QColor(*to_c))
dlg.setColorSchemas(master.color_settings, master.selected_schema_index)
if dlg.exec():
self.model().setData(index,
(dlg.contLeft.getColor().getRgb(),
dlg.contRight.getColor().getRgb(),
dlg.contpassThroughBlack),
ColorRole)
master.color_settings = dlg.getColorSchemas()
master.selected_schema_index = dlg.selectedSchemaIndex
def update_properties(self):
## Mostly copied from OWScatterPlotGraph
if not self.plot():
return
if not self.rect:
x, y = self.axes()
self.rect = self.plot().data_rect_for_axes(x, y)
s = self.graph_transform().mapRect(self.rect).size().toSize()
if not s.isValid():
return
rx = s.width()
ry = s.height()
rx -= rx % self.granularity
ry -= ry % self.granularity
p = self.graph_transform().map(QPointF(0, 0)) - self.graph_transform().map(self.rect.topLeft())
p = p.toPoint()
ox = p.x()
oy = -p.y()
if isinstance(self.classifier.classVar, ContinuousVariable):
imagebmp = orangeom.potentialsBitmap(self.classifier, rx, ry, ox, oy, self.granularity, self.scale)
palette = [qRgb(255.0 * i / 255.0, 255.0 * i / 255.0, 255 - (255.0 * i / 255.0)) for i in range(255)] + [
qRgb(255, 255, 255)
]
else:
imagebmp, nShades = orangeom.potentialsBitmap(
self.classifier, rx, ry, ox, oy, self.granularity, self.scale, self.spacing
)
palette = []
sortedClasses = get_variable_values_sorted(self.classifier.domain.classVar)
for cls in self.classifier.classVar.values:
color = self.plot().discPalette.getRGB(sortedClasses.index(cls))
towhite = [255 - c for c in color]
for s in range(nShades):
si = 1 - float(s) / nShades
palette.append(qRgb(*tuple([color[i] + towhite[i] * si for i in (0, 1, 2)])))
palette.extend([qRgb(255, 255, 255) for i in range(256 - len(palette))])
self.potentialsImage = QImage(imagebmp, rx, ry, QImage.Format_Indexed8)
self.potentialsImage.setColorTable(ColorPaletteDlg.signedPalette(palette) if qVersion() < "4.5" else palette)
self.potentialsImage.setNumColors(256)
self.pixmap_item.setPixmap(QPixmap.fromImage(self.potentialsImage))
self.pixmap_item.setPos(self.graph_transform().map(self.rect.bottomLeft()))
def create_color_dialog(self):
c = ColorPaletteDlg(self, "Color Palette")
c.createDiscretePalette("discPalette", "Discrete Palette")
c.createContinuousPalette("contPalette", "Continuous Palette")
c.setColorSchemas(self.color_settings, self.selected_schema_index)
return c
def create_color_dialog(self):
c = ColorPaletteDlg(self, "Color Palette")
c.createDiscretePalette("discPalette", "Discrete Palette")
c.createContinuousPalette("contPalette", "Continuous Palette")
c.setColorSchemas(self.color_settings, self.selected_schema_index)
return c
def create_color_picker_dialog(self):
c = ColorPaletteDlg(self, "Color Palette")
c.createDiscretePalette(DISCRETE_PALETTE, "Discrete Palette")
c.createContinuousPalette(CONTINUOUS_PALETTE, "Continuous Palette")
box = c.createBox("otherColors", "Other Colors")
c.createColorButton(box, CANVAS_COLOR, "Canvas color",
self.graph.color(OWPalette.Canvas))
c.setColorSchemas(self.color_settings, self.selected_schema_index)
return c
def createColorDialog(self):
c = ColorPaletteDlg(self, "Color Palette")
c.createDiscretePalette("discPalette", "Discrete Palette")
c.createContinuousPalette("contPalette", "Continuous Palette")
box = c.createBox("otherColors", "Other Colors")
c.createColorButton(box, "Canvas", "Canvas color", self.graph.color(OWPalette.Canvas))
box.layout().addSpacing(5)
c.createColorButton(box, "Grid", "Grid color", self.graph.color(OWPalette.Grid))
box.layout().addSpacing(5)
c.setColorSchemas(self.colorSettings, self.selectedSchemaIndex)
return c
