| 1 | import wx |
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| 2 | from wx import StatusBar as wxStatusB |
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| 3 | from wx.lib import newevent |
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| 4 | (MessageEvent, EVT_MESSAGE) = newevent.NewEvent() |
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| 5 | #numner of fields of the status bar |
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| 6 | NB_FIELDS = 4 |
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| 7 | #position of the status bar's fields |
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| 8 | ICON_POSITION = 0 |
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| 9 | MSG_POSITION = 1 |
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| 10 | GAUGE_POSITION = 2 |
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| 11 | CONSOLE_POSITION = 3 |
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| 12 | BUTTON_SIZE = 40 |
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| 13 | |
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| 14 | CONSOLE_WIDTH = 340 |
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| 15 | CONSOLE_HEIGHT = 240 |
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| 16 | |
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| 17 | class ConsolePanel(wx.Panel): |
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| 18 | """ |
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| 19 | """ |
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| 20 | def __init__(self, parent, *args, **kwargs): |
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| 21 | """ |
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| 22 | """ |
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| 23 | wx.Panel.__init__(self, parent=parent, *args, **kwargs) |
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| 24 | self.parent = parent |
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| 25 | self.sizer = wx.BoxSizer(wx.VERTICAL) |
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| 26 | self.msg_txt = wx.TextCtrl(self, size=(CONSOLE_WIDTH-40, |
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| 27 | CONSOLE_HEIGHT-60), |
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| 28 | style=wx.TE_MULTILINE) |
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| 29 | self.msg_txt.SetEditable(False) |
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| 30 | self.msg_txt.SetValue('No message available') |
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| 31 | self.sizer.Add(self.msg_txt, 1, wx.EXPAND|wx.ALL, 10) |
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| 32 | self.SetSizer(self.sizer) |
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| 33 | |
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| 34 | def set_message(self, status=""): |
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| 35 | """ |
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| 36 | """ |
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| 37 | msg = status + "\n" |
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| 38 | self.msg_txt.AppendText(str(msg)) |
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| 39 | |
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| 40 | class Console(wx.Frame): |
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| 41 | """ |
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| 42 | """ |
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| 43 | def __init__(self, parent=None, status="", *args, **kwds): |
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| 44 | kwds["size"] = (CONSOLE_WIDTH, CONSOLE_HEIGHT) |
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| 45 | kwds["title"] = "Console" |
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| 46 | wx.Frame.__init__(self, parent=parent, *args, **kwds) |
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| 47 | self.panel = ConsolePanel(self) |
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| 48 | self.panel.set_message(status=status) |
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| 49 | self.Bind(EVT_MESSAGE, self.set_message) |
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| 50 | self.Show(True) |
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| 51 | |
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| 52 | def set_multiple_messages(self, messages=[]): |
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| 53 | """ |
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| 54 | """ |
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| 55 | if messages: |
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| 56 | for status in messages: |
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| 57 | self.panel.set_message(status) |
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| 58 | |
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| 59 | def set_message(self, event): |
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| 60 | """ |
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| 61 | """ |
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| 62 | self.panel.set_message(event.status) |
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| 63 | |
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| 64 | class StatusBar(wxStatusB): |
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| 65 | """ |
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| 66 | """ |
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| 67 | def __init__(self, parent, *args, **kargs): |
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| 68 | wxStatusB.__init__(self, parent, *args, **kargs) |
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| 69 | """ |
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| 70 | Implement statusbar functionalities |
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| 71 | """ |
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| 72 | self.parent = parent |
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| 73 | self.parent.SetStatusBarPane(MSG_POSITION) |
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| 74 | #Layout of status bar |
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| 75 | self.SetFieldsCount(NB_FIELDS) |
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| 76 | self.SetStatusWidths([BUTTON_SIZE, -2, -1, BUTTON_SIZE]) |
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| 77 | #display default message |
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| 78 | self.msg_position = MSG_POSITION |
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| 79 | #save the position of the gauge |
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| 80 | width, height = self.GetSize() |
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| 81 | self.gauge = wx.Gauge(self, size=(width/10, height-3), |
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| 82 | style=wx.GA_HORIZONTAL) |
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| 83 | self.gauge.Hide() |
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| 84 | #status bar icon |
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| 85 | self.bitmap_bt_warning = wx.BitmapButton(self, -1, |
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| 86 | size=(BUTTON_SIZE,-1), |
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| 87 | style=wx.NO_BORDER) |
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| 88 | console_bmp = wx.ArtProvider.GetBitmap(wx.ART_TIP, wx.ART_TOOLBAR) |
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| 89 | self.bitmap_bt_console = wx.BitmapButton(self, -1, |
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| 90 | size=(BUTTON_SIZE-5, height-4)) |
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| 91 | self.bitmap_bt_console.SetBitmapLabel(console_bmp) |
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| 92 | console_hint = "History of status bar messages" |
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| 93 | self.bitmap_bt_console.SetToolTipString(console_hint) |
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| 94 | self.bitmap_bt_console.Bind(wx.EVT_BUTTON, self._onMonitor, |
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| 95 | id=self.bitmap_bt_console.GetId()) |
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| 96 | self.reposition() |
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| 97 | ## Current progress value of the bar |
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| 98 | self.nb_start = 0 |
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| 99 | self.nb_progress = 0 |
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| 100 | self.nb_stop = 0 |
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| 101 | self.frame = None |
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| 102 | self.list_msg = [] |
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| 103 | self.progress = 0 |
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| 104 | self.timer = wx.Timer(self, -1) |
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| 105 | self.timer_stop = wx.Timer(self, -1) |
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| 106 | self.thread = None |
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| 107 | self.Bind(wx.EVT_TIMER, self._on_time, self.timer) |
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| 108 | self.Bind(wx.EVT_TIMER, self._on_time_stop, self.timer_stop) |
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| 109 | self.Bind(wx.EVT_SIZE, self.OnSize) |
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| 110 | self.Bind(wx.EVT_IDLE, self.OnIdle) |
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| 111 | |
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| 112 | def reposition(self): |
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| 113 | """ |
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| 114 | """ |
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| 115 | rect = self.GetFieldRect(GAUGE_POSITION) |
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| 116 | self.gauge.SetPosition((rect.x + 5, rect.y - 2)) |
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| 117 | rect = self.GetFieldRect(ICON_POSITION) |
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| 118 | self.bitmap_bt_warning.SetPosition((rect.x + 5, rect.y - 2)) |
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| 119 | rect = self.GetFieldRect(CONSOLE_POSITION) |
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| 120 | self.bitmap_bt_console.SetPosition((rect.x - 5, rect.y - 2)) |
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| 121 | self.sizeChanged = False |
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| 122 | |
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| 123 | def OnIdle(self, event): |
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| 124 | """ |
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| 125 | """ |
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| 126 | if self.sizeChanged: |
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| 127 | self.reposition() |
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| 128 | |
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| 129 | def OnSize(self, evt): |
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| 130 | """ |
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| 131 | """ |
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| 132 | self.reposition() |
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| 133 | self.sizeChanged = True |
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| 134 | |
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| 135 | def get_msg_position(self): |
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| 136 | """ |
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| 137 | """ |
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| 138 | return self.msg_position |
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| 139 | |
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| 140 | def SetStatusText(self, text="", number=MSG_POSITION): |
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| 141 | """ |
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| 142 | """ |
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| 143 | wxStatusB.SetStatusText(self, text, number) |
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| 144 | self.list_msg.append(text) |
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| 145 | icon_bmp = wx.ArtProvider.GetBitmap(wx.ART_INFORMATION, wx.ART_TOOLBAR) |
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| 146 | self.bitmap_bt_warning.SetBitmapLabel(icon_bmp) |
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| 147 | try: |
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| 148 | if self.frame is not None and self.frame.IsShown(): |
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| 149 | event = MessageEvent() |
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| 150 | event.status = text |
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| 151 | wx.PostEvent(self.frame, event) |
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| 152 | except: |
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| 153 | return |
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| 154 | |
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| 155 | def PopStatusText(self, *args, **kwds): |
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| 156 | """ |
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| 157 | Override status bar |
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| 158 | """ |
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| 159 | wxStatusB.PopStatusText(self, field=MSG_POSITION) |
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| 160 | |
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| 161 | def PushStatusText(self, *args, **kwds): |
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| 162 | """ |
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| 163 | """ |
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| 164 | wxStatusB.PushStatusText(self, field=MSG_POSITION, string=string) |
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| 165 | |
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| 166 | def enable_clear_gauge(self): |
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| 167 | """ |
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| 168 | clear the progress bar |
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| 169 | """ |
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| 170 | flag = False |
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| 171 | if (self.nb_start <= self.nb_stop) or \ |
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| 172 | (self.nb_progress <= self.nb_stop): |
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| 173 | flag = True |
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| 174 | return flag |
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| 175 | |
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| 176 | def _on_time_stop(self, evt): |
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| 177 | """ |
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| 178 | Clear the progress bar |
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| 179 | |
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| 180 | :param evt: wx.EVT_TIMER |
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| 181 | |
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| 182 | """ |
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| 183 | count = 0 |
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| 184 | while(count <= 100): |
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| 185 | count += 1 |
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| 186 | self.timer_stop.Stop() |
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| 187 | self.clear_gauge(msg="") |
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| 188 | self.nb_progress = 0 |
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| 189 | self.nb_start = 0 |
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| 190 | self.nb_stop = 0 |
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| 191 | |
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| 192 | def _on_time(self, evt): |
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| 193 | """ |
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| 194 | Update the progress bar while the timer is running |
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| 195 | |
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| 196 | :param evt: wx.EVT_TIMER |
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| 197 | |
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| 198 | """ |
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| 199 | # Check stop flag that can be set from non main thread |
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| 200 | if self.timer.IsRunning(): |
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| 201 | self.gauge.Pulse() |
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| 202 | |
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| 203 | def clear_gauge(self, msg=""): |
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| 204 | """ |
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| 205 | Hide the gauge |
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| 206 | """ |
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| 207 | self.progress = 0 |
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| 208 | self.gauge.SetValue(0) |
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| 209 | self.gauge.Hide() |
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| 210 | |
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| 211 | def set_icon(self, event): |
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| 212 | """ |
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| 213 | display icons related to the type of message sent to the statusbar |
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| 214 | when available |
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| 215 | """ |
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| 216 | if not hasattr(event, "info"): |
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| 217 | return |
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| 218 | msg = event.info.lower() |
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| 219 | if msg == "warning": |
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| 220 | icon_bmp = wx.ArtProvider.GetBitmap(wx.ART_WARNING, wx.ART_TOOLBAR) |
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| 221 | self.bitmap_bt_warning.SetBitmapLabel(icon_bmp) |
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| 222 | if msg == "error": |
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| 223 | icon_bmp = wx.ArtProvider.GetBitmap(wx.ART_ERROR, wx.ART_TOOLBAR) |
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| 224 | self.bitmap_bt_warning.SetBitmapLabel(icon_bmp) |
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| 225 | if msg == "info": |
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| 226 | icon_bmp = wx.ArtProvider.GetBitmap(wx.ART_INFORMATION, |
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| 227 | wx.ART_TOOLBAR) |
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| 228 | self.bitmap_bt_warning.SetBitmapLabel(icon_bmp) |
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| 229 | |
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| 230 | def set_message(self, event): |
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| 231 | """ |
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| 232 | display received message on the statusbar |
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| 233 | """ |
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| 234 | if hasattr(event, "status"): |
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| 235 | self.SetStatusText(str(event.status)) |
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| 236 | |
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| 237 | def set_gauge(self, event): |
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| 238 | """ |
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| 239 | change the state of the gauge according the state of the current job |
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| 240 | """ |
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| 241 | if not hasattr(event, "type"): |
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| 242 | return |
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| 243 | type = event.type |
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| 244 | self.gauge.Show(True) |
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| 245 | if type.lower() == "start": |
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| 246 | self.nb_start += 1 |
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| 247 | #self.timer.Stop() |
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| 248 | self.progress += 10 |
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| 249 | self.gauge.SetValue(int(self.progress)) |
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| 250 | self.progress += 10 |
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| 251 | if self.progress < self.gauge.GetRange() - 20: |
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| 252 | self.gauge.SetValue(int(self.progress)) |
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| 253 | if type.lower() == "progress": |
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| 254 | self.nb_progress += 1 |
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| 255 | self.timer.Start(1) |
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| 256 | self.gauge.Pulse() |
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| 257 | if type.lower() == "update": |
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| 258 | self.progress += 10 |
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| 259 | if self.progress < self.gauge.GetRange()- 20: |
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| 260 | self.gauge.SetValue(int(self.progress)) |
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| 261 | if type.lower() == "stop": |
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| 262 | self.nb_stop += 1 |
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| 263 | self.gauge.Show(True) |
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| 264 | if self.enable_clear_gauge(): |
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| 265 | self.timer.Stop() |
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| 266 | self.progress = 0 |
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| 267 | self.gauge.SetValue(90) |
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| 268 | self.timer_stop.Start(3) |
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| 269 | |
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| 270 | def set_status(self, event): |
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| 271 | """ |
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| 272 | Update the status bar . |
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| 273 | |
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| 274 | :param type: type of message send. |
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| 275 | type must be in ["start","progress","update","stop"] |
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| 276 | :param msg: the message itself as string |
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| 277 | :param thread: if updatting using a thread status |
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| 278 | |
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| 279 | """ |
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| 280 | self.set_message(event=event) |
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| 281 | self.set_icon(event=event) |
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| 282 | self.set_gauge(event=event) |
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| 283 | |
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| 284 | def _onMonitor(self, event): |
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| 285 | """ |
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| 286 | Pop up a frame with messages sent to the status bar |
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| 287 | """ |
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| 288 | self.frame = Console(parent=self) |
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| 289 | self.frame.set_multiple_messages(self.list_msg) |
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| 290 | self.frame.Show(True) |
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| 291 | |
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| 292 | |
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| 293 | if __name__ == "__main__": |
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| 294 | app = wx.PySimpleApp() |
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| 295 | frame = wx.Frame(None, wx.ID_ANY, 'test frame') |
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| 296 | statusBar = StatusBar(frame, wx.ID_ANY) |
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| 297 | frame.SetStatusBar(statusBar) |
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| 298 | frame.Show(True) |
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| 299 | event = MessageEvent() |
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| 300 | event.type = "progress" |
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| 301 | event.status = "statusbar...." |
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| 302 | event.info = "error" |
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| 303 | statusBar.set_status(event=event) |
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| 304 | app.MainLoop() |
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| 305 | |
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