class PaletteView(QObject):
'''A toolview to display palette of the current document'''
colors = []
toolView = None
colorCellsWidget = None
def __init__(self, parent):
super(PaletteView, self).__init__(parent)
self.toolView = kate.mainInterfaceWindow().createToolView(
'color_tools_pate_plugin'
, kate.Kate.MainWindow.Bottom
, KIcon('color').pixmap(32, 32)
, i18nc('@title:tab', 'Palette')
)
self.toolView.installEventFilter(self)
# By default, the toolview has box layout, which is not easy to delete.
# For now, just add an extra widget.
top = QWidget(self.toolView)
# Set up the user interface from Designer.
interior = uic.loadUi(os.path.join(os.path.dirname(__file__), 'color_tools_toolview.ui'), top)
interior.update.clicked.connect(self.update)
self.colorCellsWidget = KColorCells(interior, 1, 1)
# TODO Don't know how to deal w/ drag-n-drops :(
# It seems there is no signal to realize that some item has changed :(
# (at lieast I didn't find it)
self.colorCellsWidget.setAcceptDrags(False)
self.colorCellsWidget.setEditTriggers(self.colorCellsWidget.NoEditTriggers)
interior.verticalLayout.addWidget(self.colorCellsWidget)
self.colorCellsWidget.colorSelected.connect(self.colorSelected)
self.colorCellsWidget.colorDoubleClicked.connect(self.colorDoubleClicked)
#def __del__(self):
#'''Plugins that use a toolview need to delete it for reloading to work.'''
#if self.toolView:
#self.toolView.deleteLater()
#self.toolView = None
def eventFilter(self, obj, event):
'''Hide the Palette tool view on ESCAPE key'''
if event.type() == QEvent.KeyPress and event.key() == Qt.Key_Escape:
kate.mainInterfaceWindow().hideToolView(self.toolView)
return True
return self.toolView.eventFilter(obj, event)
def updateColors(self, view=None):
'''Scan a document for #colors
Returns a list of tuples: QColor and range in a document
TODO Some refactoring needed to reduce code duplication
(@sa _get_color_range_under_cursor())
'''
self.colors = [] # Clear previous colors
if view:
document = view.document()
else:
try:
document = kate.activeDocument()
except kate.NoActiveView:
return # Do nothing if we can't get a current document
# Iterate over document's lines trying to find #colors
for l in range(0, document.lines()):
line = document.line(l) # Get the current line
start = 0 # Set initial position to 0 (line start)
while start < len(line): # Repeat 'till the line end
start = line.find('#', start) # Try to find a '#' character (start of #color)
if start == -1: # Did we found smth?
break # No! Nothing to do...
# Try to get a word right after the '#' char
end = start + 1
for c in line[end:]:
if not (c in string.hexdigits):
break
end += 1
color_range = KTextEditor.Range(l, start, l, end)
color_str = document.text(color_range)
color = QColor(color_str)
if color.isValid():
self.colors.append(ColorRangePair(color, color_range))
kate.kDebug('ColorUtilsToolView: scan for #colors found {}'.format(color_str))
start = end
def updateColorCells(self):
'''Calculate rows*columns and fill the cells w/ #colors'''
if len(self.colors):
# Recalculate rows/columns
columns = int(self.colorCellsWidget.width() / 30)
visible_rows = int(self.colorCellsWidget.height() / 25)
if len(self.colors) < (columns * visible_rows):
rows = visible_rows
else:
visible_cells = columns * visible_rows
rest = len(self.colors) - visible_cells
rows = visible_rows + int(rest / columns) + int(bool(rest % columns))
else:
columns = 1
rows = 1
self.colors.append(ColorRangePair(QColor(), KTextEditor.Range()))
self.colorCellsWidget.setColumnCount(columns)
self.colorCellsWidget.setRowCount(rows)
self.colorCellsWidget.resizeColumnsToContents()
self.colorCellsWidget.resizeRowsToContents()
# Fill color cells
for i, crp in enumerate(self.colors):
self.colorCellsWidget.setColor(i, crp.color)
for i in range(len(self.colors), columns * rows):
self.colorCellsWidget.setColor(i, QColor())
_set_tooltips(rows, columns, self.colorCellsWidget)
@pyqtSlot()
def update(self, view=None):
self.updateColors(view)
self.updateColorCells()
@pyqtSlot(int, QColor)
def colorSelected(self, idx, color):
'''Move cursor to the position of the selected #color and select the range'''
view = kate.activeView()
view.setCursorPosition(self.colors[idx].color_range.start())
view.setSelection(self.colors[idx].color_range)
@pyqtSlot(int, QColor)
def colorDoubleClicked(self, idx, color):
'''Edit selected color on double click'''
insertColor()
self.update()
