added multi gtk draw area example
This commit is contained in:
parent
37c4c15427
commit
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#!/usr/bin/python3
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from setproctitle import setproctitle
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import gi, os, faulthandler, signal, inspect, gi, cairo
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gi.require_version('Gtk', '3.0')
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from gi.repository import Gtk as gtk
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from gi.repository import Gdk as gdk
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from gi.repository import GdkPixbuf as gbuf
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class SupportMixin:
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def setFile(self):
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dialog = gtk.FileChooserDialog(title="Please choose a file", action=gtk.FileChooserAction.OPEN)
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dialog.add_buttons(gtk.STOCK_CANCEL, gtk.ResponseType.CANCEL, gtk.STOCK_OPEN, gtk.ResponseType.OK)
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response = dialog.run()
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if response == gtk.ResponseType.OK:
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self.file = dialog.get_filename()
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self.setupSurfaceData(self.file)
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elif response == gtk.ResponseType.CANCEL:
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pass
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dialog.destroy()
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def setupSurfaceData(self, file):
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pb = gbuf.Pixbuf.new_from_file(file)
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if pb:
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self.surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, pb.get_width(), pb.get_height())
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context = cairo.Context(self.surface)
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gdk.cairo_set_source_pixbuf(cr=context, pixbuf=pb, pixbuf_x=0, pixbuf_y=0)
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context.paint()
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self.drawArea.set_size_request(width=pb.get_width(), height=pb.get_height())
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self.drawArea.queue_draw()
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class Main_Draw_Area(SupportMixin):
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def __init__(self, _builder):
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self.surface = None
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self.file = None
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self.drawArea = _builder.get_object("drawArea1")
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def setMainFile(self, widget):
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self.setFile()
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def onDraw1(self, area, context):
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if self.surface is not None:
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context.set_source_surface(self.surface, 0.0, 0.0)
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context.paint()
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return False
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class File_Select_Draw_Area(SupportMixin):
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def __init__(self, _builder):
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self.surface = None
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self.file = None
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self.drawArea = _builder.get_object("drawArea2")
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def setPopupFile(self, widget):
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self.setFile()
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def onDraw2(self, area, context):
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if self.surface is not None:
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context.set_source_surface(self.surface, 0.0, 0.0)
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context.paint()
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return False
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class Window():
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def __init__(self):
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setproctitle('double_draw_areas')
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SCRIPT_PTH = os.path.dirname(os.path.realpath(__file__)) + "/"
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GLADE_FILE = "main.glade"
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self.builder = gtk.Builder()
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self.builder.add_from_file(SCRIPT_PTH + GLADE_FILE)
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handlers = {}
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classes = [self, Main_Draw_Area(self.builder), File_Select_Draw_Area(self.builder)]
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for c in classes:
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methods = None
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try:
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methods = inspect.getmembers(c, predicate=inspect.ismethod)
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handlers.update(methods)
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except Exception as e:
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pass
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self.builder.connect_signals(handlers)
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self.fileSelectionPopup = self.builder.get_object("fileSelectionPopup")
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window = self.builder.get_object("main_window")
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window.connect("delete_event", gtk.main_quit)
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window.show()
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def openFileSelectionPopup(self, widget):
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self.fileSelectionPopup.popup()
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if __name__ == '__main__':
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faulthandler.enable() # For better debug info
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window = Window()
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gtk.main()
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@ -0,0 +1,364 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<!-- Generated with glade 3.38.1 -->
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<interface>
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<requires lib="gtk+" version="3.20"/>
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<object class="GtkWindow" id="main_window">
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<property name="can-focus">False</property>
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<property name="default-width">800</property>
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<property name="default-height">800</property>
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<child>
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<!-- n-columns=10 n-rows=10 -->
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<object class="GtkGrid">
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<property name="visible">True</property>
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<property name="can-focus">False</property>
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<property name="row-homogeneous">True</property>
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<property name="column-homogeneous">True</property>
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<child>
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<object class="GtkBox">
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<property name="visible">True</property>
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<property name="can-focus">False</property>
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<property name="orientation">vertical</property>
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<child>
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<placeholder/>
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</child>
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</object>
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<packing>
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<property name="left-attach">0</property>
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<property name="top-attach">0</property>
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<property name="width">10</property>
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</packing>
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</child>
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<child>
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<object class="GtkBox">
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<property name="visible">True</property>
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<property name="can-focus">False</property>
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<property name="orientation">vertical</property>
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<child>
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<placeholder/>
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</child>
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</object>
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<packing>
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<property name="left-attach">0</property>
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<property name="top-attach">9</property>
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<property name="width">10</property>
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</packing>
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</child>
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<child>
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<object class="GtkBox">
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<property name="visible">True</property>
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<property name="can-focus">False</property>
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<property name="orientation">vertical</property>
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<child>
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<placeholder/>
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</child>
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</object>
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<packing>
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<property name="left-attach">0</property>
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<property name="top-attach">1</property>
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<property name="height">8</property>
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</packing>
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</child>
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<child>
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<object class="GtkBox">
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<property name="visible">True</property>
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<property name="can-focus">False</property>
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<property name="orientation">vertical</property>
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<child>
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<placeholder/>
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</child>
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</object>
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<packing>
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<property name="left-attach">9</property>
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<property name="top-attach">1</property>
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<property name="height">8</property>
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</packing>
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</child>
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<child>
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<object class="GtkScrolledWindow">
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<property name="visible">True</property>
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<property name="can-focus">True</property>
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<property name="shadow-type">in</property>
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<property name="min-content-width">600</property>
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<property name="min-content-height">600</property>
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<child>
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<object class="GtkViewport">
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<property name="visible">True</property>
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<property name="can-focus">False</property>
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<child>
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<object class="GtkDrawingArea" id="drawArea1">
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<property name="visible">True</property>
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<property name="can-focus">False</property>
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<signal name="draw" handler="onDraw1" swapped="no"/>
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</object>
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</child>
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</object>
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</child>
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</object>
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<packing>
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<property name="left-attach">3</property>
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<property name="top-attach">1</property>
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<property name="width">6</property>
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<property name="height">8</property>
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</packing>
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</child>
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<child>
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<object class="GtkButton">
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<property name="label">Open</property>
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<property name="visible">True</property>
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<property name="can-focus">True</property>
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<property name="receives-default">True</property>
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<signal name="clicked" handler="setMainFile" swapped="no"/>
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</object>
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<packing>
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<property name="left-attach">1</property>
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<property name="top-attach">1</property>
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</packing>
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</child>
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<child>
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<object class="GtkButton" id="openFileSelection">
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<property name="label" translatable="yes">File Selection </property>
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<property name="visible">True</property>
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<property name="can-focus">True</property>
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<property name="receives-default">True</property>
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<signal name="clicked" handler="openFileSelectionPopup" swapped="no"/>
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</object>
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<packing>
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<property name="left-attach">1</property>
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<property name="top-attach">3</property>
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</packing>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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</object>
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</child>
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</object>
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<object class="GtkPopover" id="fileSelectionPopup">
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<property name="width-request">500</property>
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<property name="height-request">500</property>
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<property name="can-focus">False</property>
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<property name="relative-to">openFileSelection</property>
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<property name="position">right</property>
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<child>
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<!-- n-columns=10 n-rows=10 -->
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<object class="GtkGrid">
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<property name="visible">True</property>
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<property name="can-focus">False</property>
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<property name="row-homogeneous">True</property>
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<property name="column-homogeneous">True</property>
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<child>
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<object class="GtkBox">
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<property name="visible">True</property>
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<property name="can-focus">False</property>
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<property name="orientation">vertical</property>
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<child>
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<placeholder/>
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</child>
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</object>
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<packing>
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<property name="left-attach">0</property>
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<property name="top-attach">0</property>
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<property name="height">10</property>
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</packing>
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</child>
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<child>
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<object class="GtkBox">
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<property name="visible">True</property>
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<property name="can-focus">False</property>
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<property name="orientation">vertical</property>
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<child>
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<placeholder/>
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</child>
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</object>
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<packing>
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<property name="left-attach">9</property>
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<property name="top-attach">0</property>
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<property name="height">10</property>
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</packing>
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</child>
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<child>
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<object class="GtkBox">
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<property name="visible">True</property>
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<property name="can-focus">False</property>
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<property name="orientation">vertical</property>
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<child>
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<placeholder/>
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</child>
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</object>
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<packing>
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<property name="left-attach">1</property>
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<property name="top-attach">0</property>
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<property name="width">8</property>
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</packing>
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</child>
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<child>
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<object class="GtkBox">
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<property name="visible">True</property>
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<property name="can-focus">False</property>
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<property name="orientation">vertical</property>
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<child>
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<placeholder/>
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</child>
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</object>
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<packing>
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<property name="left-attach">1</property>
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<property name="top-attach">9</property>
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<property name="width">8</property>
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</packing>
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</child>
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<child>
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<object class="GtkScrolledWindow">
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<property name="visible">True</property>
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<property name="can-focus">True</property>
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<property name="shadow-type">in</property>
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<child>
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<object class="GtkViewport">
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<property name="visible">True</property>
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<property name="can-focus">False</property>
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<child>
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<object class="GtkDrawingArea" id="drawArea2">
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<property name="visible">True</property>
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<property name="can-focus">False</property>
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<signal name="draw" handler="onDraw2" swapped="no"/>
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</object>
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</child>
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</object>
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</child>
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</object>
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<packing>
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<property name="left-attach">3</property>
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<property name="top-attach">3</property>
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<property name="width">6</property>
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<property name="height">6</property>
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</packing>
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</child>
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<child>
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<object class="GtkButton">
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<property name="label">Select File</property>
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<property name="visible">True</property>
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<property name="can-focus">True</property>
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<property name="receives-default">True</property>
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<signal name="clicked" handler="setPopupFile" swapped="no"/>
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</object>
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<packing>
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<property name="left-attach">1</property>
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<property name="top-attach">1</property>
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<property name="width">2</property>
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<property name="height">2</property>
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</packing>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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<child>
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<placeholder/>
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</child>
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</object>
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</child>
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</object>
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</interface>
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