Fix "warning: operation on 'y' may be undefined".

[wxWidgets.git] / wxPython / demo / HtmlWindow.py

import  os
import  sys

import  wx
import  wx.html as  html
import  wx.lib.wxpTag

from Main import opj

#----------------------------------------------------------------------

# This shows how to catch the OnLinkClicked non-event.  (It's a virtual
# method in the C++ code...)
class MyHtmlWindow(html.HtmlWindow):
    def __init__(self, parent, id, log):
        html.HtmlWindow.__init__(self, parent, id, style=wx.NO_FULL_REPAINT_ON_RESIZE)
        self.log = log
        self.Bind(wx.EVT_SCROLLWIN, self.OnScroll )
        if "gtk2" in wx.PlatformInfo:
            self.SetStandardFonts()

    def OnScroll( self, event ):
        #print 'event.GetOrientation()',event.GetOrientation()
        #print 'event.GetPosition()',event.GetPosition()
        event.Skip()

    def OnLinkClicked(self, linkinfo):
        self.log.WriteText('OnLinkClicked: %s\n' % linkinfo.GetHref())

        # Virtuals in the base class have been renamed with base_ on the front.
        self.base_OnLinkClicked(linkinfo)


    def OnSetTitle(self, title):
        self.log.WriteText('OnSetTitle: %s\n' % title)
        self.base_OnSetTitle(title)

    def OnCellMouseHover(self, cell, x, y):
        self.log.WriteText('OnCellMouseHover: %s, (%d %d)\n' % (cell, x, y))
        self.base_OnCellMouseHover(cell, x, y)

    def OnCellClicked(self, cell, x, y, evt):
        self.log.WriteText('OnCellClicked: %s, (%d %d)\n' % (cell, x, y))
        self.base_OnCellClicked(cell, x, y, evt)


# This filter doesn't really do anything but show how to use filters
class MyHtmlFilter(html.HtmlFilter):
    def __init__(self, log):
        html.HtmlFilter.__init__(self)
        self.log = log

    # This method decides if this filter is able to read the file
    def CanRead(self, fsfile):
        self.log.write("CanRead: %s\n" % fsfile.GetMimeType())
        return False

    # If CanRead returns True then this method is called to actually
    # read the file and return the contents.
    def ReadFile(self, fsfile):
        return ""


class TestHtmlPanel(wx.Panel):
    def __init__(self, parent, frame, log):
        wx.Panel.__init__(self, parent, -1, style=wx.NO_FULL_REPAINT_ON_RESIZE)
        self.log = log
        self.frame = frame
        self.cwd = os.path.split(sys.argv[0])[0]

        if not self.cwd:
            self.cwd = os.getcwd()
        if frame:
            self.titleBase = frame.GetTitle()

        html.HtmlWindow_AddFilter(MyHtmlFilter(log))

        self.html = MyHtmlWindow(self, -1, log)
        self.html.SetRelatedFrame(frame, self.titleBase + " -- %s")
        self.html.SetRelatedStatusBar(0)

        self.printer = html.HtmlEasyPrinting()

        self.box = wx.BoxSizer(wx.VERTICAL)
        self.box.Add(self.html, 1, wx.GROW)

        subbox = wx.BoxSizer(wx.HORIZONTAL)

        btn = wx.Button(self, -1, "Load File")
        self.Bind(wx.EVT_BUTTON, self.OnLoadFile, btn)
        subbox.Add(btn, 1, wx.GROW | wx.ALL, 2)

        btn = wx.Button(self, -1, "Load URL")
        self.Bind(wx.EVT_BUTTON, self.OnLoadURL, btn)
        subbox.Add(btn, 1, wx.GROW | wx.ALL, 2)

        btn = wx.Button(self, -1, "With Widgets")
        self.Bind(wx.EVT_BUTTON, self.OnWithWidgets, btn)
        subbox.Add(btn, 1, wx.GROW | wx.ALL, 2)

        btn = wx.Button(self, -1, "Back")
        self.Bind(wx.EVT_BUTTON, self.OnBack, btn)
        subbox.Add(btn, 1, wx.GROW | wx.ALL, 2)

        btn = wx.Button(self, -1, "Forward")
        self.Bind(wx.EVT_BUTTON, self.OnForward, btn)
        subbox.Add(btn, 1, wx.GROW | wx.ALL, 2)

        btn = wx.Button(self, -1, "Print")
        self.Bind(wx.EVT_BUTTON, self.OnPrint, btn)
        subbox.Add(btn, 1, wx.GROW | wx.ALL, 2)

        btn = wx.Button(self, -1, "View Source")
        self.Bind(wx.EVT_BUTTON, self.OnViewSource, btn)
        subbox.Add(btn, 1, wx.GROW | wx.ALL, 2)

        self.box.Add(subbox, 0, wx.GROW)
        self.SetSizer(self.box)
        self.SetAutoLayout(True)

        # A button with this ID is created on the widget test page.
        self.Bind(wx.EVT_BUTTON, self.OnOk, id=wx.ID_OK)

        self.OnShowDefault(None)


    def ShutdownDemo(self):
        # put the frame title back
        if self.frame:
            self.frame.SetTitle(self.titleBase)


    def OnShowDefault(self, event):
        name = os.path.join(self.cwd, opj('data/test.htm'))
        self.html.LoadPage(name)


    def OnLoadFile(self, event):
        dlg = wx.FileDialog(self, wildcard = '*.htm*', style=wx.OPEN)

        if dlg.ShowModal():
            path = dlg.GetPath()
            self.html.LoadPage(path)

        dlg.Destroy()


    def OnLoadURL(self, event):
        dlg = wx.TextEntryDialog(self, "Enter a URL")

        if dlg.ShowModal():
            url = dlg.GetValue()
            self.html.LoadPage(url)

        dlg.Destroy()


    def OnWithWidgets(self, event):
        os.chdir(self.cwd)
        name = os.path.join(self.cwd, opj('data/widgetTest.htm'))
        self.html.LoadPage(name)


    def OnOk(self, event):
        self.log.WriteText("It works!\n")

    def OnBack(self, event):
        if not self.html.HistoryBack():
            wx.MessageBox("No more items in history!")


    def OnForward(self, event):
        if not self.html.HistoryForward():
            wx.MessageBox("No more items in history!")


    def OnViewSource(self, event):
        import  wx.lib.dialogs

        source = self.html.GetParser().GetSource()

        dlg = wx.lib.dialogs.ScrolledMessageDialog(self, source, 'HTML Source')
        dlg.ShowModal()
        dlg.Destroy()


    def OnPrint(self, event):
        self.printer.GetPrintData().SetPaperId(wx.PAPER_LETTER)
        self.printer.PrintFile(self.html.GetOpenedPage())

#----------------------------------------------------------------------

def runTest(frame, nb, log):
    win = TestHtmlPanel(nb, frame, log)
    return win


#----------------------------------------------------------------------


overview = """<html><body>
<h2>wx.HtmlWindow</h2>

<p>wx.HtmlWindow is capable of parsing and rendering most
simple HTML tags.

<p>It is not intended to be a high-end HTML browser.  If you're
looking for something like that see the IEHtmlWin class, which
wraps the core MSIE HTML viewer.

</body></html>
"""



if __name__ == '__main__':
    import sys,os
    import run
    run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])