summaryrefslogtreecommitdiffstats
path: root/doc/src/diagrams/programs/qpen-dashpattern.py
diff options
context:
space:
mode:
Diffstat (limited to 'doc/src/diagrams/programs/qpen-dashpattern.py')
-rw-r--r--doc/src/diagrams/programs/qpen-dashpattern.py70
1 files changed, 70 insertions, 0 deletions
diff --git a/doc/src/diagrams/programs/qpen-dashpattern.py b/doc/src/diagrams/programs/qpen-dashpattern.py
new file mode 100644
index 0000000..095d51f
--- /dev/null
+++ b/doc/src/diagrams/programs/qpen-dashpattern.py
@@ -0,0 +1,70 @@
+#!/usr/bin/env python
+
+import sys
+from PyQt4.QtCore import *
+from PyQt4.QtGui import *
+from PyQt4.QtSvg import QSvgGenerator
+
+if __name__ == "__main__":
+
+ app = QApplication(sys.argv)
+
+ #device = QSvgGenerator()
+ #device.setFileName("qpen-dashpattern.svg")
+ #device.setSize(QSize(216, 144))
+ #device.setResolution(72)
+
+ device = QImage(192, 144, QImage.Format_ARGB32)
+ device.fill(qRgba(0, 0, 0, 0))
+
+ #resolution = device.resolution() # dpi
+ #dpp = resolution / 72.0
+
+ p = QPainter()
+ p.begin(device)
+
+ width = 8
+
+ pen = QPen()
+ pen.setWidth(width)
+ pen.setDashPattern([4, 2])
+ pen.setCapStyle(Qt.FlatCap)
+
+ faded_pen = QPen()
+ faded_pen.setWidth(width)
+ faded_pen.setDashPattern([4, 2])
+ faded_pen.setColor(QColor(160, 160, 160))
+ faded_pen.setCapStyle(Qt.FlatCap)
+
+ font = QFont("Monospace")
+ font.setPointSize(12)
+ p.setFont(font)
+ p.setBrush(QColor(160, 0, 0))
+
+ for x in range(-6, 9):
+
+ if x % 4 == 0:
+ length = 6
+ else:
+ length = 2
+
+ p.drawLine(64 + x * width, 4, 64 + x * width, 4 + length)
+ p.drawLine(64 + x * width, 136, 64 + x * width, 136 - length)
+
+ offsets = (0, 2, 3.5, 4, 5, 6)
+ for i in range(len(offsets)):
+
+ offset = offsets[i]
+ pen.setDashOffset(offset)
+
+ p.setPen(faded_pen)
+ p.drawLine(64 - offset * width, 20 + (i * 20), 64, 20 + (i * 20))
+
+ p.setPen(pen)
+ p.drawLine(64, 20 + (i * 20), 128, 20 + (i * 20))
+
+ p.drawText(150, 25 + (i * 20), str(offset))
+
+ p.end()
+ device.save("qpen-dashpattern.png")
+ sys.exit()