Addition of a print action on the fanchart
svn: r20305
This commit is contained in:
Benny Malengier
@@ -1699,5 +1699,3 @@ links (like ODF) and write PDF from that format.
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cr.stroke()
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self._pages[page_nr].draw(cr, layout, width, dpi_x, dpi_y)
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@@ -34,6 +34,7 @@
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#-------------------------------------------------------------------------
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from gi.repository import Gdk
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from gi.repository import Gtk
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import cairo
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from cgi import escape
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from gen.ggettext import gettext as _
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@@ -52,6 +53,10 @@ from gen.errors import WindowActiveError
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from gui.views.bookmarks import PersonBookmarks
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from gui.editors import EditPerson
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# the print settings to remember between print sessions
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PRINT_SETTINGS = None
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class FanChartView(NavigationView):
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"""
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The Gramplet code that realizes the FanChartWidget.
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@@ -110,6 +115,11 @@ class FanChartView(NavigationView):
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<separator/>
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</placeholder>
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</menu>
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<menu action="EditMenu">
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<placeholder name="CommonEdit">
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<menuitem action="PrintView"/>
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</placeholder>
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</menu>
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</menubar>
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<toolbar name="ToolBar">
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<placeholder name="CommonNavigation">
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@@ -117,10 +127,24 @@ class FanChartView(NavigationView):
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<toolitem action="Forward"/>
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<toolitem action="HomePerson"/>
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</placeholder>
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<placeholder name="CommonEdit">
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<toolitem action="PrintView"/>
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</placeholder>
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</toolbar>
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</ui>
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'''
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def define_actions(self):
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"""
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Required define_actions function for PageView. Builds the action
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group information required.
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"""
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NavigationView.define_actions(self)
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self._add_action('PrintView', Gtk.STOCK_PRINT, _("_Print/Save View..."),
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accel="<PRIMARY>P",
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tip=_("Print or save the Fan Chart View"),
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callback=self.printview)
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def build_tree(self):
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pass # will build when active_changes
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@@ -473,9 +497,9 @@ class FanChartView(NavigationView):
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per_item.set_image(go_image)
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label.set_use_markup(True)
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label.show()
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label.set_alignment(0,0)
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label.set_alignment(0, 0)
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per_item.add(label)
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per_item.connect("activate",self.on_childmenu_changed,p_id)
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per_item.connect("activate", self.on_childmenu_changed, p_id)
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per_item.show()
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per_menu.append(per_item)
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@@ -485,3 +509,146 @@ class FanChartView(NavigationView):
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menu.append(item)
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menu.popup(None, None, None, None, event.button, event.time)
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return 1
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def printview(self, obj):
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"""
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Print or save the view that is currently shown
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"""
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widthpx = 2*(self.fan.pixels_per_generation * self.fan.nrgen()
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+ self.fan.center)
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prt = CairoPrintSave(widthpx, self.fan.on_draw, self.uistate.window)
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prt.run()
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#------------------------------------------------------------------------
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#
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# CairoPrintSave class
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#
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#------------------------------------------------------------------------
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class CairoPrintSave():
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"""Act as an abstract document that can render onto a cairo context.
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It can render the model onto cairo context pages, according to the received
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page style.
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"""
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def __init__(self, widthpx, drawfunc, parent):
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"""
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This class provides the things needed so as to dump a cairo drawing on
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a context to output
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"""
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self.widthpx = widthpx
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self.drawfunc = drawfunc
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self.parent = parent
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def run(self):
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"""Create the physical output from the meta document.
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"""
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global PRINT_SETTINGS
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# set up a print operation
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operation = Gtk.PrintOperation()
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operation.connect("draw_page", self.on_draw_page)
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operation.connect("preview", self.on_preview)
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operation.connect("paginate", self.on_paginate)
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operation.set_n_pages(1)
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#paper_size = Gtk.PaperSize.new(name="iso_a4")
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## WHY no Gtk.Unit.PIXEL ?? Is there a better way to convert
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## Pixels to MM ??
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paper_size = Gtk.PaperSize.new_custom("custom",
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"Custom Size",
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round(self.widthpx * 0.2646),
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round(self.widthpx * 0.2646),
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Gtk.Unit.MM)
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page_setup = Gtk.PageSetup()
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page_setup.set_paper_size(paper_size)
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#page_setup.set_orientation(Gtk.PageOrientation.PORTRAIT)
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operation.set_default_page_setup(page_setup)
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#operation.set_use_full_page(True)
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if PRINT_SETTINGS is not None:
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operation.set_print_settings(PRINT_SETTINGS)
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# run print dialog
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while True:
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self.preview = None
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res = operation.run(Gtk.PrintOperationAction.PRINT_DIALOG, self.parent)
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if self.preview is None: # cancel or print
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break
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# set up printing again; can't reuse PrintOperation?
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operation = Gtk.PrintOperation()
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operation.set_default_page_setup(page_setup)
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operation.connect("draw_page", self.on_draw_page)
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operation.connect("preview", self.on_preview)
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operation.connect("paginate", self.on_paginate)
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# set print settings if it was stored previously
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if PRINT_SETTINGS is not None:
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operation.set_print_settings(PRINT_SETTINGS)
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# store print settings if printing was successful
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if res == Gtk.PrintOperationResult.APPLY:
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PRINT_SETTINGS = operation.get_print_settings()
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def on_draw_page(self, operation, context, page_nr):
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"""Draw a page on a Cairo context.
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"""
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cr = context.get_cairo_context()
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pxwidth = round(context.get_width())
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pxheight = round(context.get_height())
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dpi_x = context.get_dpi_x()
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dpi_y = context.get_dpi_y()
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self.drawfunc(None, cr, scale=pxwidth/self.widthpx)
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def on_paginate(self, operation, context):
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"""Paginate the whole document in chunks.
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We don't need this as there is only one page, however,
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we provide a dummy holder here, because on_preview crashes if no
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default application is set with gir 3.3.2 (typically evince not installed)!
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It will provide the start of the preview dialog, which cannot be
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started in on_preview
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"""
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finished = True
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# update page number
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operation.set_n_pages(1)
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# start preview if needed
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if self.preview:
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self.preview.run()
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return finished
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def on_preview(self, operation, preview, context, parent):
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"""Implement custom print preview functionality.
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We provide a dummy holder here, because on_preview crashes if no
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default application is set with gir 3.3.2 (typically evince not installed)!
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"""
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dlg = Gtk.MessageDialog(parent,
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flags=Gtk.DialogFlags.MODAL,
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type=Gtk.MessageType.WARNING,
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buttons=Gtk.ButtonsType.CLOSE,
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message_format=_('No preview available'))
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self.preview = dlg
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self.previewopr = operation
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#dlg.format_secondary_markup(msg2)
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dlg.set_title("Fan Chart Preview - Gramps")
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dlg.connect('response', self.previewdestroy)
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# give a dummy cairo context to Gtk.PrintContext,
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try:
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width = int(round(context.get_width()))
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except ValueError:
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width = 0
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try:
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height = int(round(context.get_height()))
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except ValueError:
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height = 0
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surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, width, height)
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cr = cairo.Context(surface)
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context.set_cairo_context(cr, 72.0, 72.0)
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return True
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def previewdestroy(self, dlg, res):
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self.preview.destroy()
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self.previewopr.end_preview()
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