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[processing] add ParameterPoint for selecting point on canvas (fix #5733
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,46 @@ | ||
| # -*- coding: utf-8 -*- | ||
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| """ | ||
| *************************************************************************** | ||
| PointMapTool.py | ||
| --------------------- | ||
| Date : February 2016 | ||
| Copyright : (C) 2016 by Alexander Bruy | ||
| Email : alexander dot bruy at gmail dot com | ||
| *************************************************************************** | ||
| * * | ||
| * 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 2 of the License, or * | ||
| * (at your option) any later version. * | ||
| * * | ||
| *************************************************************************** | ||
| """ | ||
|
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| __author__ = 'Alexander Bruy' | ||
| __date__ = 'February 2016' | ||
| __copyright__ = '(C) 2016, Alexander Bruy' | ||
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| # This will get replaced with a git SHA1 when you do a git archive | ||
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| __revision__ = '$Format:%H$' | ||
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| from PyQt4.QtCore import Qt | ||
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| from qgis.gui import QgsMapToolEmitPoint | ||
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| class PointMapTool(QgsMapToolEmitPoint): | ||
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| def __init__(self, canvas): | ||
| QgsMapToolEmitPoint.__init__(self, canvas) | ||
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| self.canvas = canvas | ||
| self.cursor = Qt.ArrowCursor | ||
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| def activate(self): | ||
| self.canvas.setCursor(self.cursor) | ||
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| def canvasPressEvent(self, event): | ||
| pnt = self.toMapCoordinates(event.pos()) | ||
| self.canvasClicked.emit(pnt, event.button()) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,91 @@ | ||
| # -*- coding: utf-8 -*- | ||
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| """ | ||
| *************************************************************************** | ||
| PointSelectionPanel.py | ||
| --------------------- | ||
| Date : February 2016 | ||
| Copyright : (C) 2016 by Alexander Bruy | ||
| Email : alexander dot bruy at gmail dot com | ||
| *************************************************************************** | ||
| * * | ||
| * 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 2 of the License, or * | ||
| * (at your option) any later version. * | ||
| * * | ||
| *************************************************************************** | ||
| """ | ||
|
|
||
| __author__ = 'Alexander Bruy' | ||
| __date__ = 'February 2016' | ||
| __copyright__ = '(C) 2016, Alexander Bruy' | ||
|
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| # This will get replaced with a git SHA1 when you do a git archive | ||
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| __revision__ = '$Format:%H$' | ||
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| import os | ||
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| from PyQt4 import uic | ||
| from PyQt4.QtGui import QCursor | ||
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| from qgis.gui import QgsMessageBar | ||
| from qgis.utils import iface | ||
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| from processing.gui.PointMapTool import PointMapTool | ||
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| pluginPath = os.path.split(os.path.dirname(__file__))[0] | ||
| WIDGET, BASE = uic.loadUiType( | ||
| os.path.join(pluginPath, 'ui', 'widgetBaseSelector.ui')) | ||
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| class PointSelectionPanel(BASE, WIDGET): | ||
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| def __init__(self, dialog, default=None): | ||
| super(PointSelectionPanel, self).__init__(None) | ||
| self.setupUi(self) | ||
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| self.btnSelect.clicked.connect(self.selectOnCanvas) | ||
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| self.dialog = dialog | ||
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| canvas = iface.mapCanvas() | ||
| self.prevMapTool = canvas.mapTool() | ||
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| self.tool = PointMapTool(canvas) | ||
| self.tool.canvasClicked.connect(self.updatePoint) | ||
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| if default: | ||
| tokens = unicode(default).split(',') | ||
| if len(tokens) == 2: | ||
| try: | ||
| float(tokens[0]) | ||
| float(tokens[1]) | ||
| self.leText.setText(unicode(default)) | ||
| except: | ||
| pass | ||
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| def selectOnCanvas(self): | ||
| canvas = iface.mapCanvas() | ||
| canvas.setMapTool(self.tool) | ||
| self.dialog.showMinimized() | ||
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| def updatePoint(self, point, button): | ||
| s = '{},{}'.format(point.x(), point.y()) | ||
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| self.leText.setText(s) | ||
| canvas = iface.mapCanvas() | ||
| canvas.setMapTool(self.prevMapTool) | ||
| self.dialog.showNormal() | ||
| self.dialog.raise_() | ||
| self.dialog.activateWindow() | ||
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| def getValue(self): | ||
| if unicode(self.leText.text()).strip() != '': | ||
| return unicode(self.leText.text()) | ||
| else: | ||
| return None | ||
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| def setPointFromString(self, s): | ||
| self.leText.setText(s) |