Differential D20103 Diff 55095 plugins/python/mixer_slider_docker/slider_line.py

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plugins/python/mixer_slider_docker/slider_line.py

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		1		'''
		2		Copyright (C) 2019 Tusooa Zhu <tusooa@vista.aero>
		3
		4		This file is part of Krita-docker-color-slider.
		5
		6		Krita-docker-color-slider is free software: you can redistribute it and/or modify
		7		it under the terms of the GNU General Public License as published by
		8		the Free Software Foundation, either version 3 of the License, or
		9		(at your option) any later version.
		10
		11		Krita-docker-color-slider is distributed in the hope that it will be useful,
		12		but WITHOUT ANY WARRANTY; without even the implied warranty of
		13		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14		GNU General Public License for more details.
		15
		16		You should have received a copy of the GNU General Public License
		17		along with Krita-docker-color-slider. If not, see <https://www.gnu.org/licenses/>.
		18		'''
		19		from PyQt5.QtWidgets import QHBoxLayout, QWidget
		20		from PyQt5.QtGui import QPixmap, QPainter
		21		from PyQt5.Qt import pyqtSlot, pyqtSignal
		22
		23		from .color_slider import ColorSlider
		24
		25
		26		class SliderBtn(QWidget):
		27		clicked = pyqtSignal()
		28
		29		def __init__(self, parent=None):
		30		super(SliderBtn, self).__init__(parent)
		31
		32		def set_color(self, qcolor):
		33		self.color = qcolor
		34		self.update()
		35
		36		def update_color(self):
		37		color_sq = QPixmap(self.width(), self.height())
		38		color_sq.fill(self.color)
		39		image = color_sq.toImage()
		40
		41		painter = QPainter(self)
		42		painter.drawImage(0, 0, image)
		43
		44		def paintEvent(self, event):
		45		self.update_color()
		46
		47		def mouseReleaseEvent(self, event):
		48		self.clicked.emit()
		49
		50
		51		class SliderLine(QWidget):
		52		def __init__(self, left_color, right_color, docker, parent=None):
		53		super(SliderLine, self).__init__(parent)
		54		self.left_button = SliderBtn()
		55		self.right_button = SliderBtn()
		56		self.docker = docker
		57		self.color_slider = ColorSlider(docker)
		58		self.layout = QHBoxLayout()
		59		self.layout.setContentsMargins(2, 2, 2, 2)
		60		self.setLayout(self.layout)
		61		self.layout.addWidget(self.left_button)
		62		self.layout.addWidget(self.color_slider)
		63		self.layout.addWidget(self.right_button)
		64		self.left_button.clicked.connect(self.slot_update_left_color)
		65		self.right_button.clicked.connect(self.slot_update_right_color)
		66		self.set_color('left', left_color)
		67		self.set_color('right', right_color)
		68		self.left_button.setMinimumSize(30, 30)
		69		self.left_button.setMaximumSize(30, 30)
		70		self.right_button.setMinimumSize(30, 30)
		71		self.right_button.setMaximumSize(30, 30)
		72		self.color_slider.setMaximumHeight(30)
		73
		74		def set_color(self, pos, color):
		75		button_to_set = None
		76		if pos == 'left':
		77		self.left = color
		78		button_to_set = self.left_button
		79		else:
		80		self.right = color
		81		button_to_set = self.right_button
		82
		83		self.color_slider.set_color(pos, color)
		84
		85		button_to_set.set_color(self.docker.managedcolor_to_qcolor(color))
		86
		87		@pyqtSlot()
		88		def slot_update_left_color(self):
		89		if self.docker.canvas() is not None:
		90		if self.docker.canvas().view() is not None:
		91		self.set_color('left', self.docker.canvas().view().foregroundColor())
		92		self.color_slider.value_x = 0 # set the cursor to the left-most
		93		self.color_slider.update()
		94		self.docker.write_settings()
		95
		96		@pyqtSlot()
		97		def slot_update_right_color(self):
		98		if self.docker.canvas() is not None:
		99		if self.docker.canvas().view() is not None:
		100		self.set_color('right', self.docker.canvas().view().foregroundColor())
		101		self.color_slider.value_x = self.color_slider.width() - 1
		102		self.color_slider.update()
		103		self.docker.write_settings()