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"""
@package gui_core.infobar
@brief Wrapper around wx.InfoBar
Classes:
- gui_core::InfoBar
(C) 2020 by the GRASS Development Team
This program is free software under the GNU General Public License
(>=v2). Read the file COPYING that comes with GRASS for details.
@author Linda Kladivova
@author Anna Petrasova <kratochanna gmail.com>
@author Vaclav Petras <wenzeslaus gmail.com>
"""
import sys
import wx
import wx.aui
try:
import wx.lib.agw.infobar as IB
except ImportError:
import wx.lib.infobar as IB
def GetCloseButtonBitmap(win, size, colBg, flags=0):
"""Workaround for missing DrawTitleBarBitmap method
of wx.RendererNative in certain wx versions.
See https://github.com/wxWidgets/Phoenix/issues/1425."""
renderer = wx.RendererNative.Get()
if hasattr(renderer, "DrawTitleBarBitmap"):
bmp = wx.Bitmap(*size)
dc = wx.MemoryDC()
dc.SelectObject(bmp)
dc.SetBackground(wx.Brush(colBg))
dc.Clear()
wx.RendererNative.Get().DrawTitleBarBitmap(
win, dc, wx.Rect(size), wx.TITLEBAR_BUTTON_CLOSE, flags
)
dc.SelectObject(wx.NullBitmap)
else:
bmp = wx.ArtProvider.GetBitmap(wx.ART_CLOSE, wx.ART_BUTTON)
return bmp
IB.GetCloseButtonBitmap = GetCloseButtonBitmap
class InfoBar(IB.InfoBar):
"""A customized and specialized info bar to used by default"""
def __init__(self, parent):
IB.InfoBar.__init__(self, parent)
self.button_ids = []
# color according to OS
if sys.platform == "win32":
bgcolor = wx.SYS_COLOUR_INFOBK
fgcolor = wx.SYS_COLOUR_INFOTEXT
else:
bgcolor = wx.SYS_COLOUR_HIGHLIGHT
fgcolor = wx.SYS_COLOUR_HIGHLIGHTTEXT
# set background and foreground color and remove alpha
self._background_color = wx.SystemSettings.GetColour(bgcolor).Get(False)
self._foreground_color = wx.SystemSettings.GetColour(fgcolor).Get(False)
self.SetBackgroundColour(self._background_color)
self.SetForegroundColour(self._foreground_color)
self._text.SetBackgroundColour(self._background_color)
self._text.SetForegroundColour(self._foreground_color)
self._button.SetBackgroundColour(self._background_color)
# layout
self._unInitLayout()
sizer = wx.BoxSizer(wx.VERTICAL)
subSizerText = wx.BoxSizer(wx.HORIZONTAL)
self.subSizerButtons = wx.BoxSizer(wx.HORIZONTAL)
subSizerText.Add(self._icon, wx.SizerFlags().Centre().Border())
subSizerText.Add(self._text, 1, wx.ALIGN_CENTER_VERTICAL)
self.subSizerButtons.AddStretchSpacer()
self.subSizerButtons.Add(self._button, wx.SizerFlags().Centre().Border())
sizer.Add(subSizerText, wx.SizerFlags().Expand())
sizer.Add(self.subSizerButtons, wx.SizerFlags().Expand())
self.SetSizer(sizer)
def _unInitLayout(self):
sizer = self.GetSizer()
children = sizer.GetChildren()
for i in reversed(range(len(children))):
if children[i].IsSpacer():
sizer.Remove(i)
else:
sizer.Detach(i)
def ShowMessage(self, message, icon, buttons=None):
"""Show message with buttons (optional).
Buttons are list of tuples (label, handler)"""
self.Hide()
self.RemoveButtons()
if buttons:
self.SetButtons(buttons)
super().ShowMessage(message, icon)
def AddButton(self, btnid, label):
"""
Adds a button to be shown in the info bar.
"""
sizer = self.GetSizer()
assert sizer is not None, "Sizer must be created first"
# user-added buttons replace the standard close button so remove it if we
# hadn't done it yet
if sizer.Detach(self._button):
self._button.Hide()
button = wx.Button(self, btnid, label)
button.SetBackgroundColour(self._background_color)
button.SetForegroundColour(self._foreground_color)
if wx.Platform == "__WXMAC__":
# smaller buttons look better in the(narrow)info bar under OS X
button.SetWindowVariant(wx.WINDOW_VARIANT_SMALL)
num_items = self.subSizerButtons.GetItemCount()
if num_items == 1:
self.subSizerButtons.Add(button, wx.SizerFlags().Centre().Border())
self.subSizerButtons.Add(self._button, wx.SizerFlags().Centre().Border())
self._button.Show()
else:
self.subSizerButtons.Insert(
num_items - 1, button, wx.SizerFlags().Centre().Border()
)
if self.IsShown():
self.UpdateParent()
def SetButtons(self, buttons):
"""
Sets buttons for notification.
Parameter *buttons* is a list of tuples (button_name, event)
"""
for button_name, evt_handler in buttons:
button_id = wx.NewId()
self.button_ids.append(button_id)
self.AddButton(button_id, button_name)
self.Bind(wx.EVT_BUTTON, evt_handler, id=button_id)
def RemoveButtons(self):
"""
Removes buttons from info bar.
"""
items = self.subSizerButtons.GetChildren()
for item in reversed(items):
if not item.IsSpacer():
window = item.GetWindow()
if window.GetId() in self.button_ids:
self.subSizerButtons.Detach(window)
window.Destroy()
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