Add a circular progress bar to the manuscript build tool

2023-06-07 22:37:47 +02:00
parent 3bcb4a5091
commit 4ee452d186
2 changed files with 85 additions and 13 deletions
@@ -0,0 +1,62 @@
+"""
+novelWriter – Custom Widget: ProgressCircle
+===========================================
+
+File History:
+Created: 2023-06-07 [2.1b1]
+
+This file is a part of novelWriter
+Copyright 2018–2023, Veronica Berglyd Olsen
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <https://www.gnu.org/licenses/>.
+"""
+
+from math import ceil
+
+from PyQt5.QtGui import QPaintEvent, QPainter, QPen
+from PyQt5.QtCore import QRect, Qt
+from PyQt5.QtWidgets import QProgressBar, QSizePolicy, QWidget
+
+
+class NProgressCircle(QProgressBar):
+
+    __slots__ = ("_mPx", "_bPen", "_cPen", "_cRect", "_tColor")
+
+    def __init__(self, parent: QWidget, size: int, point: int):
+        super().__init__(parent=parent)
+        self._mPx = point
+        self._bPen = QPen(self.palette().alternateBase(), point, Qt.SolidLine, Qt.RoundCap)
+        self._cPen = QPen(self.palette().highlight(), point, Qt.SolidLine, Qt.RoundCap)
+        self._cRect = QRect(point, point, size - 2*point, size - 2*point)
+        self._tColor = self.palette().text().color()
+        self.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
+        self.setFixedWidth(size)
+        self.setFixedHeight(size)
+        return
+
+    def paintEvent(self, event: QPaintEvent):
+        """Custom painter for the progress bar."""
+        progress = 100.0*self.value()/self.maximum()
+        angle = ceil(16*3.6*progress)
+        qPaint = QPainter(self)
+        qPaint.setRenderHint(QPainter.Antialiasing, True)
+        qPaint.setPen(self._bPen)
+        qPaint.drawArc(self._cRect, 0, 360*16)
+        qPaint.setPen(self._cPen)
+        qPaint.drawArc(self._cRect, 90*16, -angle)
+        qPaint.setPen(self._tColor)
+        qPaint.drawText(self._cRect, Qt.AlignCenter, f"{progress:.1f} %")
+        return
+
+# END Class NProgressCircle