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wxWidgets/wxPython/wx/lib/foldpanelbar.py
Robin Dunn 9f4cc34f37 some docstring fixes 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39667 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2006-06-11 00:13:05 +00:00

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# --------------------------------------------------------------------------- #
# FOLDPANELBAR wxPython IMPLEMENTATION
# Ported From Jorgen Bodde & Julian Smart (Extended Demo) C++ Code By:
#
# Andrea Gavana, @ 23 Mar 2005
# Latest Revision: 05 Nov 2005, 23.30 CET
#
#
# TODO List
#
# All The C++ TODOs Are Still Alive. I Am Not Able to Read Jorges's Mind
# So I Don't Really Know What Will Be The New Features/Additions He Will
# Make On His Code. At The Moment They Are:
#
# 1. OnPaint Function In CaptionBar Class:
# TODO: Maybe First A Memory Dc Should Draw All, And Then Paint It On The
# Caption. This Way A Flickering Arrow During Resize Is Not Visible.
#
# 2. OnChar Function In CaptionBar Class:
# TODO: This Is Easy To Do But I Don't Have Any Useful Idea On Which Kind
# Of Features To Add. Does Anyone Have An Intelligent Idea?
#
# 3. AddFoldPanelWindow Function In FoldPanelBar Class:
# TODO: Take Old And New Heights, And If Difference, Reposition All The
# Lower Panels. This Is Because The User Can Add New wxWindow Controls
# Somewhere In Between When Other Panels Are Already Present.
# Don't Know What It Means. Probably Is My Poor English...
#
# 4. OnSizePanel Function In FoldPanelBar Class:
# TODO: A Smart Way To Check Wether The Old - New Width Of The
# Panel Changed, If So No Need To Resize The Fold Panel Items
#
#
# DONE List:
#
# 1. Implemented Styles Like FPB_SINGLE_FOLD and FPB_EXCLUSIVE_FOLD
# Thanks To E. A. Tacao For His Nice Suggestions.
#
# 2. Added Some Maquillage To FoldPanelBar: When The Mouse Enters The Icon
# Region, It Is Changed To wx.CURSOR_HAND.
#
#
# For The Original TODO List From Jorgen, Please Refer To:
# http://www.solidsteel.nl/jorg/components/foldpanel/wxFoldPanelBar.php#todo_list
#
#
#
# For All Kind Of Problems, Requests Of Enhancements And Bug Reports, Please
# Write To Me At:
#
# andrea.gavana@agip.it
# andrea_gavan@tin.it
#
# Or, Obviously, To The wxPython Mailing List!!!
#
#
# End Of Comments
# --------------------------------------------------------------------------- #
"""
The `FoldPanelBar` is a control that contains multiple panels (of type
`FoldPanelItem`) that can be expanded or collapsed. The captionbar of
the FoldPanel can be customized by setting it to a horizontal gradient
style, vertical gradient style, a single color, a rectangle or filled
rectangle. The FoldPanel items can be collapsed in place or to the
bottom of the control. `wx.Window` derived controls can be added
dynamically, and separated by separator lines. FoldPanelBar is
freeware and distributed under the wxPython license.
How does it work
----------------
The internals of the FoldPanelBar is a list of FoldPanelItem objects. Through
the reference of FoldPanel these panels can be controlled by adding new controls
to a FoldPanel or adding new FoldPanels to the FoldPanelBar.
The CaptionBar fires events to the parent (container of all panel items) when a
sub-panel needs resizing (either folding or expanding). The fold or expand process
is simply a resize of the panel so it looks like all controls on it are gone. All
controls are still child of the FoldPanel they are located on. If they don't
handle the event (and they won't) then the owner of the FoldPanelBar gets the
events. This is what you need to handle the controls. There isn't much to it just
a lot of calculations to see what panel belongs where. There are no sizers
involved in the panels, everything is purely x-y positioning.
What can it do and what not?
----------------------------
a) What it can do:
* Run-time addition of panels (no deletion just yet)
* Run time addition of controls to the panel (it will be resized accordingly)
* Creating panels in collapsed mode or expanded mode
* Various modes of caption behaviour and filling to make it more appealing
* Panels can be folded and collapsed (or all of them) to allow more space
b) What it cannot do:
* Selection of a panel like in a list ctrl
* Dragging and dropping the panels
* Re-ordering the panels (not yet)
Supported platforms
-------------------
FoldPanelBar is supported on the following platforms:
* Windows (Verified on Windows XP, 2000)
* Linux/Unix (GTK2) (Thanks To Toni Brkic And Robin Dunn)
* Mac OSX (Thanks To Robin Dunn For The CaptionBar Size Patch)
FoldPanelBar is based upon Jorgen Bodde's C++ implementation.
Latest Revision: Andrea Gavana @ 05 Nov 2005, 23.30 CET
"""
import wx
#----------------------------------------------------------------------
# Collapsed And Expanded Bitmap Images
# Created With img2py.py
#----------------------------------------------------------------------
def GetCollapsedIconData():
return \
'\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x10\x00\x00\x00\x10\x08\x06\
\x00\x00\x00\x1f\xf3\xffa\x00\x00\x00\x04sBIT\x08\x08\x08\x08|\x08d\x88\x00\
\x00\x007IDAT8\x8dcddbf\xa0\x040Q\xa4{\xf0\x1b\xf0\xff\xdf\xdf\xff\x03\xe7\
\x02\x98\xed\x84\\A\x1b\x17\xa0\xdb\x8a\xcf\x15\xd4w\x01.\xdbp\x89S\xec\x02\
\xc6\xd1\xbc\xc0\x00\x00\x9a\xf5\x1b\xfa\xf9m$?\x00\x00\x00\x00IEND\xaeB`\
\x82'
def GetCollapsedIconBitmap():
return wx.BitmapFromImage(GetCollapsedIconImage())
def GetCollapsedIconImage():
import cStringIO
stream = cStringIO.StringIO(GetCollapsedIconData())
return wx.ImageFromStream(stream)
#----------------------------------------------------------------------
def GetExpandedIconData():
return \
'\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x10\x00\x00\x00\x10\x08\x06\
\x00\x00\x00\x1f\xf3\xffa\x00\x00\x00\x04sBIT\x08\x08\x08\x08|\x08d\x88\x00\
\x00\x00BIDAT8\x8dcddbf\xa0\x040Q\xa4{P\x18\xc0\x82.\xf0\xff\xdf\xdf\xff\xb8\
\x143213R\xdd\x05\x18\x06`\xb3\x05\x9f8m\x02\x11\xdd6\\\xb6\xd3\xce\x05\xc8\
\xb6\xe2\xb3\x9d*.`\x1c\xcd\x0b\x0c\x00\x9e\xbc\x04W\x19\xcfa\xb5\x00\x00\
\x00\x00IEND\xaeB`\x82'
def GetExpandedIconBitmap():
return wx.BitmapFromImage(GetExpandedIconImage())
def GetExpandedIconImage():
import cStringIO
stream = cStringIO.StringIO(GetExpandedIconData())
return wx.ImageFromStream(stream)
#----------------------------------------------------------------------
#----------------------------------------------------------------------
# FOLDPANELBAR Starts Here
#----------------------------------------------------------------------
# CAPTIONBAR STYLES
#
#- CAPTIONBAR_GRADIENT_V: Draws a vertical gradient from top to bottom
#- CAPTIONBAR_GRADIENT_H: Draws a horizontal gradient from left to right
#- CAPTIONBAR_SINGLE: Draws a single filled rectangle to draw the caption
#- CAPTIONBAR_RECTANGLE: Draws a single colour with a rectangle around the caption
#- CAPTIONBAR_FILLED_RECTANGLE: Draws a filled rectangle and a border around it
CAPTIONBAR_NOSTYLE = 0
CAPTIONBAR_GRADIENT_V = 1
CAPTIONBAR_GRADIENT_H = 2
CAPTIONBAR_SINGLE = 3
CAPTIONBAR_RECTANGLE = 4
CAPTIONBAR_FILLED_RECTANGLE = 5
FPB_EXTRA_X = 10
FPB_EXTRA_Y = 4
# pixels of the bmp to be aligned from the right filled with space
FPB_BMP_RIGHTSPACE = 2
# Now supported! Single fold forces
# other panels to close when they are open, and only opens the current panel.
# This will allow the open panel to gain the full size left in the client area
FPB_SINGLE_FOLD = 0x0001
# All panels are stacked to the bottom. When they are expanded again they
# show up at the top
FPB_COLLAPSE_TO_BOTTOM = 0x0002
# Now supported! Single fold plus panels
# will be stacked at the bottom
FPB_EXCLUSIVE_FOLD = 0x0004
# Orientation Flag
FPB_HORIZONTAL = wx.HORIZONTAL
FPB_VERTICAL = wx.VERTICAL
# Default Extrastyle of the FoldPanelBar
FPB_DEFAULT_EXTRASTYLE = 0
# Default style of the FoldPanelBar
FPB_DEFAULT_STYLE = wx.TAB_TRAVERSAL | wx.NO_BORDER
# FoldPanelItem default settings
FPB_ALIGN_LEFT = 0
FPB_ALIGN_WIDTH = 1
FPB_DEFAULT_LEFTSPACING = 5
FPB_DEFAULT_RIGHTSPACING = 10
FPB_DEFAULT_SPACING = 8
FPB_DEFAULT_LEFTLINESPACING = 2
FPB_DEFAULT_RIGHTLINESPACING = 2
# ------------------------------------------------------------------------------ #
# class CaptionBarStyle
# ------------------------------------------------------------------------------ #
class CaptionBarStyle:
"""
This class encapsulates the styles you wish to set for the
`CaptionBar` (this is the part of the FoldPanel where the caption
is displayed). It can either be applied at creation time be
reapplied when styles need to be changed.
At construction time, all styles are set to their default
transparency. This means none of the styles will be applied to
the `CaptionBar` in question, meaning it will be created using the
default internals. When setting i.e the color, font or panel
style, these styles become active to be used.
"""
def __init__(self):
""" Default constructor for this class."""
self.ResetDefaults()
def ResetDefaults(self):
""" Resets default CaptionBarStyle."""
self._firstColourUsed = False
self._secondColourUsed = False
self._textColourUsed = False
self._captionFontUsed = False
self._captionStyleUsed = False
self._captionStyle = CAPTIONBAR_GRADIENT_V
# ------- CaptionBar Font -------
def SetCaptionFont(self, font):
"""
Sets font for the caption bar.
If this is not set, the font property is undefined and will
not be used. Use `CaptionFontUsed` to check if this style is
used.
"""
self._captionFont = font
self._captionFontUsed = True
def CaptionFontUsed(self):
""" Checks if the caption bar font is set. """
return self._captionFontUsed
def GetCaptionFont(self):
"""
Returns the font for the caption bar.
Please be warned this will result in an assertion failure when
this property is not previously set.
:see: `SetCaptionFont`, `CaptionFontUsed`
"""
return self._captionFont
# ------- First Colour -------
def SetFirstColour(self, colour):
"""
Sets first colour for the caption bar.
If this is not set, the colour property is undefined and will
not be used. Use `FirstColourUsed` to check if this style is
used.
"""
self._firstColour = colour
self._firstColourUsed = True
def FirstColourUsed(self):
""" Checks if the first colour of the caption bar is set."""
return self._firstColourUsed
def GetFirstColour(self):
"""
Returns the first colour for the caption bar.
Please be warned this will result in an assertion failure when
this property is not previously set.
:see: `SetFirstColour`, `FirstColourUsed`
"""
return self._firstColour
# ------- Second Colour -------
def SetSecondColour(self, colour):
"""
Sets second colour for the caption bar.
If this is not set, the colour property is undefined and will
not be used. Use `SecondColourUsed` to check if this style is
used.
"""
self._secondColour = colour
self._secondColourUsed = True
def SecondColourUsed(self):
""" Checks if the second colour of the caption bar is set."""
return self._secondColourUsed
def GetSecondColour(self):
"""
Returns the second colour for the caption bar.
Please be warned this will result in an assertion failure when
this property is not previously set.
:see: `SetSecondColour`, `SecondColourUsed`
"""
return self._secondColour
# ------- Caption Text Colour -------
def SetCaptionColour(self, colour):
"""
Sets caption colour for the caption bar.
If this is not set, the colour property is undefined and will
not be used. Use `CaptionColourUsed` to check if this style is
used.
"""
self._textColour = colour
self._textColourUsed = True
def CaptionColourUsed(self):
""" Checks if the caption colour of the caption bar is set."""
return self._textColourUsed
def GetCaptionColour(self):
"""
Returns the caption colour for the caption bar.
Please be warned this will result in an assertion failure
when this property is not previously set.
See also SetCaptionColour(), CaptionColourUsed()
"""
return self._textColour
# ------- CaptionStyle -------
def SetCaptionStyle(self, style):
"""
Sets caption style for the caption bar.
If this is not set, the property is undefined and will not be
used. Use CaptionStyleUsed() to check if this style is used.
The following styles can be applied:
* CAPTIONBAR_GRADIENT_V: Draws a vertical gradient from top to bottom
* CAPTIONBAR_GRADIENT_H: Draws a horizontal gradient from
left to right
* CAPTIONBAR_SINGLE: Draws a single filled rectangle to
draw the caption
* CAPTIONBAR_RECTANGLE: Draws a single colour with a
rectangle around the caption
* CAPTIONBAR_FILLED_RECTANGLE: Draws a filled rectangle
and a border around it
"""
self._captionStyle = style
self._captionStyleUsed = True
def CaptionStyleUsed(self):
""" Checks if the caption style of the caption bar is set."""
return self._captionStyleUsed
def GetCaptionStyle(self):
"""
Returns the caption style for the caption bar.
Please be warned this will result in an assertion failure
when this property is not previously set.
:see: `SetCaptionStyle`, `CaptionStyleUsed`
"""
return self._captionStyle
#-----------------------------------#
# CaptionBarEvent
#-----------------------------------#
wxEVT_CAPTIONBAR = wx.NewEventType()
EVT_CAPTIONBAR = wx.PyEventBinder(wxEVT_CAPTIONBAR, 0)
# ---------------------------------------------------------------------------- #
# class CaptionBarEvent
# ---------------------------------------------------------------------------- #
class CaptionBarEvent(wx.PyCommandEvent):
"""
This event will be sent when a EVT_CAPTIONBAR is mapped in the parent.
It is to notify the parent that the bar is now in collapsed or expanded
state. The parent should re-arrange the associated windows accordingly
"""
def __init__(self, evtType):
""" Default Constructor For This Class."""
wx.PyCommandEvent.__init__(self, evtType)
def GetFoldStatus(self):
"""
Returns whether the bar is expanded or collapsed. True means
expanded.
"""
return not self._bar.IsCollapsed()
def GetBar(self):
""" Returns The CaptionBar Selected."""
return self._bar
def SetTag(self, tag):
""" Assign A Tag To The Selected CaptionBar."""
self._tag = tag
def GetTag(self):
""" Returns The Tag Assigned To The Selected CaptionBar."""
return self._tag
def SetBar(self, bar):
"""
Sets the bar associated with this event.
Should not used by any other then the originator of the event.
"""
self._bar = bar
# -------------------------------------------------------------------------------- #
# class CaptionBar
# -------------------------------------------------------------------------------- #
class CaptionBar(wx.Window):
"""
This class is a graphical caption component that consists of a
caption and a clickable arrow.
The CaptionBar fires an event EVT_CAPTIONBAR which is a
`CaptionBarEvent`. This event can be caught and the parent window
can act upon the collapsed or expanded state of the bar (which is
actually just the icon which changed). The parent panel can
reduce size or expand again.
"""
# Define Empty CaptionBar Style
EmptyCaptionBarStyle = CaptionBarStyle()
def __init__(self, parent, id, pos, size, caption="",
foldIcons=None, cbstyle=EmptyCaptionBarStyle,
rightIndent=FPB_BMP_RIGHTSPACE,
iconWidth=16, iconHeight=16, collapsed=False):
""" Default Class Constructor."""
wx.Window.__init__(self, parent, wx.ID_ANY, pos=pos,
size=(20,20), style=wx.NO_BORDER)
self._controlCreated = False
self._collapsed = collapsed
self.ApplyCaptionStyle(cbstyle, True)
if foldIcons is None:
foldIcons = wx.ImageList(16, 16)
bmp = GetExpandedIconBitmap()
foldIcons.Add(bmp)
bmp = GetCollapsedIconBitmap()
foldIcons.Add(bmp)
# set initial size
if foldIcons:
assert foldIcons.GetImageCount() > 1
iconWidth, iconHeight = foldIcons.GetSize(0)
self._caption = caption
self._foldIcons = foldIcons
self._style = cbstyle
self._rightIndent = rightIndent
self._iconWidth = iconWidth
self._iconHeight = iconHeight
self._oldSize = wx.Size(20,20)
self._controlCreated = True
self.Bind(wx.EVT_PAINT, self.OnPaint)
self.Bind(wx.EVT_SIZE, self.OnSize)
self.Bind(wx.EVT_MOUSE_EVENTS, self.OnMouseEvent)
self.Bind(wx.EVT_CHAR, self.OnChar)
def ApplyCaptionStyle(self, cbstyle=EmptyCaptionBarStyle, applyDefault=True):
""" Applies the style defined in cbstyle to the CaptionBar."""
newstyle = cbstyle
if applyDefault:
# get first colour from style or make it default
if not newstyle.FirstColourUsed():
newstyle.SetFirstColour(wx.WHITE)
# get second colour from style or make it default
if not newstyle.SecondColourUsed():
# make the second colour slightly darker then the background
color = self.GetParent().GetBackgroundColour()
r, g, b = int(color.Red()), int(color.Green()), int(color.Blue())
color = ((r >> 1) + 20, (g >> 1) + 20, (b >> 1) + 20)
newstyle.SetSecondColour(wx.Colour(color[0], color[1], color[2]))
# get text colour
if not newstyle.CaptionColourUsed():
newstyle.SetCaptionColour(wx.BLACK)
# get font colour
if not newstyle.CaptionFontUsed():
newstyle.SetCaptionFont(self.GetParent().GetFont())
# apply caption style
if not newstyle.CaptionStyleUsed():
newstyle.SetCaptionStyle(CAPTIONBAR_GRADIENT_V)
self._style = newstyle
def SetCaptionStyle(self, cbstyle=EmptyCaptionBarStyle, applyDefault=True):
"""
Sets CaptionBar styles with CapionBarStyle class.
All styles that are actually set, are applied. If you set
applyDefault to True, all other (not defined) styles will be
set to default. If it is False, the styles which are not set
in the CaptionBarStyle will be ignored.
"""
self.ApplyCaptionStyle(cbstyle, applyDefault)
self.Refresh()
def GetCaptionStyle(self):
"""
Returns the current style of the captionbar in a
`CaptionBarStyle` class.
This can be used to change and set back the changes.
"""
return self._style
def IsCollapsed(self):
"""
Returns wether the status of the bar is expanded or collapsed.
"""
return self._collapsed
def SetRightIndent(self, pixels):
"""
Sets the amount of pixels on the right from which the bitmap
is trailing.
If this is 0, it will be drawn all the way to the right,
default is equal to FPB_BMP_RIGHTSPACE. Assign this before
assigning an image list to prevent a redraw.
"""
assert pixels >= 0
self._rightIndent = pixels
if self._foldIcons:
self.Refresh()
def Collapse(self):
"""
This sets the internal state / representation to collapsed.
This does not trigger a `CaptionBarEvent` to be sent to the
parent.
"""
self._collapsed = True
self.RedrawIconBitmap()
def Expand(self):
"""
This sets the internal state / representation to expanded.
This does not trigger a `CaptionBarEvent` to be sent to the
parent.
"""
self._collapsed = False
self.RedrawIconBitmap()
def SetBoldFont(self):
""" Sets the CaptionBarFont weight to BOLD."""
self.GetFont().SetWeight(wx.BOLD)
def SetNormalFont(self):
""" Sets the CaptionBarFont weight to NORMAL."""
self.GetFont().SetWeight(wx.NORMAL)
def IsVertical(self):
"""
Returns wether the CaptionBar Has Default Orientation Or Not.
Default is vertical.
"""
fld = self.GetParent().GetGrandParent()
if isinstance(fld, FoldPanelBar):
return self.GetParent().GetGrandParent().IsVertical()
else:
raise "ERROR: Wrong Parent " + repr(fld)
def OnPaint(self, event):
""" The paint event for flat or gradient fill. """
if not self._controlCreated:
event.Skip()
return
dc = wx.PaintDC(self)
wndRect = self.GetRect()
vertical = self.IsVertical()
# TODO: Maybe first a memory DC should draw all, and then paint it on
# the caption. This way a flickering arrow during resize is not visible
self.FillCaptionBackground(dc)
dc.SetFont(self._style.GetCaptionFont())
dc.SetTextForeground(self._style.GetCaptionColour())
if vertical:
dc.DrawText(self._caption, 4, FPB_EXTRA_Y/2)
else:
dc.DrawRotatedText(self._caption, FPB_EXTRA_Y/2,
wndRect.GetBottom() - 4, 90)
# draw small icon, either collapsed or expanded
# based on the state of the bar. If we have any bmp's
if self._foldIcons:
index = self._collapsed
if vertical:
drw = wndRect.GetRight() - self._iconWidth - self._rightIndent
self._foldIcons.Draw(index, dc, drw,
(wndRect.GetHeight() - self._iconHeight)/2,
wx.IMAGELIST_DRAW_TRANSPARENT)
else:
self._foldIcons.Draw(index, dc,
(wndRect.GetWidth() - self._iconWidth)/2,
self._rightIndent, wx.IMAGELIST_DRAW_TRANSPARENT)
## event.Skip()
def FillCaptionBackground(self, dc):
"""
Fills the background of the caption with either a gradient or
a solid color.
"""
style = self._style.GetCaptionStyle()
if style == CAPTIONBAR_GRADIENT_V:
if self.IsVertical():
self.DrawVerticalGradient(dc, self.GetRect())
else:
self.DrawHorizontalGradient(dc, self.GetRect())
elif style == CAPTIONBAR_GRADIENT_H:
if self.IsVertical():
self.DrawHorizontalGradient(dc, self.GetRect())
else:
self.DrawVerticalGradient(dc, self.GetRect())
elif style == CAPTIONBAR_SINGLE:
self.DrawSingleColour(dc, self.GetRect())
elif style == CAPTIONBAR_RECTANGLE or style == CAPTIONBAR_FILLED_RECTANGLE:
self.DrawSingleRectangle(dc, self.GetRect())
else:
raise "STYLE Error: Undefined Style Selected: " + repr(style)
def OnMouseEvent(self, event):
"""
Catches the mouse click-double click.
If clicked on the arrow (single) or double on the caption we change state
and an event must be fired to let this panel collapse or expand.
"""
send_event = False
vertical = self.IsVertical()
if event.LeftDown() and self._foldIcons:
pt = event.GetPosition()
rect = self.GetRect()
drw = (rect.GetWidth() - self._iconWidth - self._rightIndent)
if vertical and pt.x > drw or not vertical and \
pt.y < (self._iconHeight + self._rightIndent):
send_event = True
elif event.LeftDClick():
self.SetCursor(wx.StockCursor(wx.CURSOR_ARROW))
send_event = True
elif event.Entering() and self._foldIcons:
pt = event.GetPosition()
rect = self.GetRect()
drw = (rect.GetWidth() - self._iconWidth - self._rightIndent)
if vertical and pt.x > drw or not vertical and \
pt.y < (self._iconHeight + self._rightIndent):
self.SetCursor(wx.StockCursor(wx.CURSOR_HAND))
else:
self.SetCursor(wx.StockCursor(wx.CURSOR_ARROW))
elif event.Leaving():
self.SetCursor(wx.StockCursor(wx.CURSOR_ARROW))
elif event.Moving():
pt = event.GetPosition()
rect = self.GetRect()
drw = (rect.GetWidth() - self._iconWidth - self._rightIndent)
if vertical and pt.x > drw or not vertical and \
pt.y < (self._iconHeight + self._rightIndent):
self.SetCursor(wx.StockCursor(wx.CURSOR_HAND))
else:
self.SetCursor(wx.StockCursor(wx.CURSOR_ARROW))
# send the collapse, expand event to the parent
if send_event:
event = CaptionBarEvent(wxEVT_CAPTIONBAR)
event.SetId(self.GetId())
event.SetEventObject(self)
event.SetBar(self)
self.GetEventHandler().ProcessEvent(event)
def OnChar(self, event):
""" Unused Methods. Any Ideas?!?"""
# TODO: Anything here?
event.Skip()
def DoGetBestSize(self):
"""
Returns the best size for this panel, based upon the font
assigned to this window, and the caption string
"""
if self.IsVertical():
x, y = self.GetTextExtent(self._caption)
else:
y, x = self.GetTextExtent(self._caption)
if x < self._iconWidth:
x = self._iconWidth
if y < self._iconHeight:
y = self._iconHeight
# TODO: The extra FPB_EXTRA_X constants should be adjustable as well
return wx.Size(x + FPB_EXTRA_X, y + FPB_EXTRA_Y)
def DrawVerticalGradient(self, dc, rect):
""" Gradient fill from colour 1 to colour 2 with top to bottom. """
if rect.height < 1 or rect.width < 1:
return
dc.SetPen(wx.TRANSPARENT_PEN)
# calculate gradient coefficients
col2 = self._style.GetSecondColour()
col1 = self._style.GetFirstColour()
r1, g1, b1 = int(col1.Red()), int(col1.Green()), int(col1.Blue())
r2, g2, b2 = int(col2.Red()), int(col2.Green()), int(col2.Blue())
flrect = float(rect.height)
rstep = float((r2 - r1)) / flrect
gstep = float((g2 - g1)) / flrect
bstep = float((b2 - b1)) / flrect
rf, gf, bf = 0, 0, 0
for y in range(rect.y, rect.y + rect.height):
currCol = (r1 + rf, g1 + gf, b1 + bf)
dc.SetBrush(wx.Brush(currCol, wx.SOLID))
dc.DrawRectangle(rect.x, rect.y + (y - rect.y), rect.width, rect.height)
rf = rf + rstep
gf = gf + gstep
bf = bf + bstep
def DrawHorizontalGradient(self, dc, rect):
""" Gradient fill from colour 1 to colour 2 with left to right. """
if rect.height < 1 or rect.width < 1:
return
dc.SetPen(wx.TRANSPARENT_PEN)
# calculate gradient coefficients
col2 = self._style.GetSecondColour()
col1 = self._style.GetFirstColour()
r1, g1, b1 = int(col1.Red()), int(col1.Green()), int(col1.Blue())
r2, g2, b2 = int(col2.Red()), int(col2.Green()), int(col2.Blue())
flrect = float(rect.width)
rstep = float((r2 - r1)) / flrect
gstep = float((g2 - g1)) / flrect
bstep = float((b2 - b1)) / flrect
rf, gf, bf = 0, 0, 0
for x in range(rect.x, rect.x + rect.width):
currCol = (r1 + rf, g1 + gf, b1 + bf)
dc.SetBrush(wx.Brush(currCol, wx.SOLID))
dc.DrawRectangle(rect.x + (x - rect.x), rect.y, 1, rect.height)
rf = rf + rstep
gf = gf + gstep
bf = bf + bstep
def DrawSingleColour(self, dc, rect):
""" Single colour fill. This is the most easy one to find. """
if rect.height < 1 or rect.width < 1:
return
dc.SetPen(wx.TRANSPARENT_PEN)
# draw simple rectangle
dc.SetBrush(wx.Brush(self._style.GetFirstColour(), wx.SOLID))
dc.DrawRectangle(rect.x, rect.y, rect.width, rect.height)
def DrawSingleRectangle(self, dc, rect):
""" Single rectangle. This is the most easy one to find. """
if rect.height < 2 or rect.width < 1:
return
# single frame, set up internal fill colour
if self._style.GetCaptionStyle() == CAPTIONBAR_RECTANGLE:
color = self.GetParent().GetBackgroundColour()
br = wx.Brush(color, wx.SOLID)
else:
color = self._style.GetFirstColour()
br = wx.Brush(color, wx.SOLID)
# setup the pen frame
pen = wx.Pen(self._style.GetSecondColour())
dc.SetPen(pen)
dc.SetBrush(br)
dc.DrawRectangle(rect.x, rect.y, rect.width, rect.height - 1)
bgpen = wx.Pen(self.GetParent().GetBackgroundColour())
dc.SetPen(bgpen)
dc.DrawLine(rect.x, rect.y + rect.height - 1, rect.x + rect.width,
rect.y + rect.height - 1)
def OnSize(self, event):
""" Handles the size events for the CaptionBar."""
if not self._controlCreated:
event.Skip()
return
size = event.GetSize()
if self._foldIcons:
# What I am doing here is simply invalidating the part of the window
# exposed. So when I make a rect with as width the newly exposed part,
# and the x,y of the old window size origin, I don't need a bitmap
# calculation in it, or do I ? The bitmap needs redrawing anyway.
# Leave it like this until I figured it out.
# set rect to redraw as old bitmap area which is entitled to redraw
rect = wx.Rect(size.GetWidth() - self._iconWidth - self._rightIndent, 0,
self._iconWidth + self._rightIndent,
self._iconWidth + self._rightIndent)
# adjust rectangle when more is slided so we need to redraw all
# the old stuff but not all (ugly flickering)
diffX = size.GetWidth() - self._oldSize.GetWidth()
if diffX > 1:
# adjust the rect with all the crap to redraw
rect.SetWidth(rect.GetWidth() + diffX + 10)
rect.SetX(rect.GetX() - diffX - 10)
self.RefreshRect(rect)
else:
rect = self.GetRect()
self.RefreshRect(rect)
self._oldSize = size
def RedrawIconBitmap(self):
""" Redraws the icons (if they exists). """
if self._foldIcons:
# invalidate the bitmap area and force a redraw
rect = self.GetRect()
rect.SetX(rect.GetWidth() - self._iconWidth - self._rightIndent)
rect.SetWidth(self._iconWidth + self._rightIndent)
self.RefreshRect(rect)
# ---------------------------------------------------------------------------------- #
# class FoldPanelBar
# ---------------------------------------------------------------------------------- #
class FoldPanelBar(wx.Panel):
"""
The FoldPanelBar is a class which can maintain a list of
collapsable panels. Once a panel is collapsed, only it's caption
bar is visible to the user. This will provide more space for the
other panels, or allow the user to close panels which are not used
often to get the most out of the work area.
This control is easy to use. Simply create it as a child for a
panel or sash window, and populate panels with
`AddFoldPanel`. Then use the `AddFoldPanelWindow` to add
`wx.Window` derived controls to the current fold panel. Use
`AddFoldPanelSeparator` to put separators between the groups of
controls that need a visual separator to group them
together. After all is constructed, the user can fold the panels
by doubleclicking on the bar or single click on the arrow, which
will indicate the collapsed or expanded state.
"""
# Define Empty CaptionBar Style
EmptyCaptionBarStyle = CaptionBarStyle()
def __init__(self, parent, id=-1, pos=wx.DefaultPosition, size=wx.DefaultSize,
style=FPB_DEFAULT_STYLE, extraStyle=FPB_DEFAULT_EXTRASTYLE):
""" Default Class Constructor. """
self._controlCreated = False
self._extraStyle = extraStyle
# make sure there is any orientation
if style & FPB_HORIZONTAL != FPB_HORIZONTAL:
style = style | FPB_VERTICAL
if style & FPB_HORIZONTAL == 4:
self._isVertical = False
else:
self._isVertical = True
# create the panel (duh!). This causes a size event, which we are going
# to skip when we are not initialised
wx.Panel.__init__(self, parent, id, pos, size, style)
# the fold panel area
self._foldPanel = wx.Panel(self, wx.ID_ANY, pos, size,
wx.NO_BORDER | wx.TAB_TRAVERSAL)
self._controlCreated = True
self._panels = []
self.Bind(EVT_CAPTIONBAR, self.OnPressCaption)
self.Bind(wx.EVT_SIZE, self.OnSizePanel)
def AddFoldPanel(self, caption="", collapsed=False, foldIcons=None,
cbstyle=EmptyCaptionBarStyle):
"""
Adds a fold panel to the list of panels.
If the flag collapsed is set to True, the panel is collapsed
initially. The FoldPanel item which is returned, can be used
as a reference to perform actions upon the fold panel like
collapsing it, expanding it, or deleting it from the list.
Use this foldpanel to add windows to it. Please consult
`AddFoldPanelWindow` and `AddFoldPanelSeparator` to know how
to add items derived from `wx.Window` to the panels.
"""
# create a fold panel item, which is first only the caption.
# the user can now add a panel area which will be folded in
# when pressed.
if foldIcons is None:
foldIcons = wx.ImageList(16, 16)
bmp = GetExpandedIconBitmap()
foldIcons.Add(bmp)
bmp = GetCollapsedIconBitmap()
foldIcons.Add(bmp)
item = FoldPanelItem(self._foldPanel, -1, caption=caption,
foldIcons=foldIcons,
collapsed=collapsed, cbstyle=cbstyle)
pos = 0
if len(self._panels) > 0:
pos = self._panels[-1].GetItemPos() + self._panels[-1].GetPanelLength()
item.Reposition(pos)
self._panels.append(item)
return item
def AddFoldPanelWindow(self, panel, window, flags=FPB_ALIGN_WIDTH,
Spacing=FPB_DEFAULT_SPACING,
leftSpacing=FPB_DEFAULT_LEFTLINESPACING,
rightSpacing=FPB_DEFAULT_RIGHTLINESPACING):
"""
Adds a `wx.Window` derived instance to the referenced
FoldPanel.
IMPORTANT: Make the window be a child of the FoldPanel. See
example that follows. The flags to be used are:
* FPB_ALIGN_WIDTH: Which means the wxWindow to be added
will be aligned to fit the width of the FoldPanel when
it is resized. Very handy for sizer items, buttons and
text boxes.
* FPB_ALIGN_LEFT: Aligns left instead of fitting the
width of the child window to be added. Use either this
one or FPB_ALIGN_WIDTH.
The wx.Window to be added can be slightly indented from left
and right so it is more visibly placed in the FoldPanel. Use
Spacing > 0 to give the control an y offset from the previous
wx.Window added, use leftSpacing to give it a slight indent
from the left, and rightSpacing also reserves a little space
on the right so the wxWindow can be properly placed in the
FoldPanel.
The following example adds a FoldPanel to the FoldPanelBar and
adds two wx.Window derived controls to the FoldPanel::
# create the FoldPanelBar
>>> m_pnl = FoldPanelBar(self, wx.ID_ANY, wx.DefaultPosition,
wx.DefaultSize, FPB_DEFAULT_STYLE,
FPB_COLLAPSE_TO_BOTTOM)
# add a foldpanel to the control. "Test me" is the caption and it is
# initially not collapsed.
>>> item = m_pnl.AddFoldPanel("Test me", False)
# now add a button to the fold panel. Mind that the button should be
# made child of the FoldPanel and not of the main form.
>>> m_pnl.AddFoldPanelWindow(item, wx.Button(item, ID_COLLAPSEME,
"Collapse Me"))
# add a separator between the two controls. This is purely a visual
# line that can have a certain color and also the indents and width
# aligning like a control.
>>> m_pnl.AddFoldPanelSeparator(item)
# now add a text ctrl. Also very easy. Align this on width so that
# when the control gets wider the text control also sizes along.
>>> m_pnl.AddFoldPanelWindow(item, wx.TextCtrl(item, wx.ID_ANY, "Comment"),
FPB_ALIGN_WIDTH, FPB_DEFAULT_SPACING, 20)
"""
try:
item = self._panels.index(panel)
except:
raise "ERROR: Invalid Panel Passed To AddFoldPanelWindow: " + repr(panel)
panel.AddWindow(window, flags, Spacing, leftSpacing, rightSpacing)
# TODO: Take old and new height, and if difference, reposition all the lower
# panels this is because the user can add new wxWindow controls somewhere in
# between when other panels are already present.
return 0
def AddFoldPanelSeparator(self, panel, colour=wx.BLACK,
Spacing=FPB_DEFAULT_SPACING,
leftSpacing=FPB_DEFAULT_LEFTLINESPACING,
rightSpacing=FPB_DEFAULT_RIGHTLINESPACING):
"""
Adds a separator line to the current FoldPanel.
The seperator is a simple line which is drawn and is no real
component. It can be used to separate groups of controls
which belong to each other. The colour is adjustable, and it
takes the same Spacing, leftSpacing and rightSpacing as
`AddFoldPanelWindow`.
"""
try:
item = self._panels.index(panel)
except:
raise "ERROR: Invalid Panel Passed To AddFoldPanelSeparator: " + repr(panel)
panel.AddSeparator(colour, Spacing, leftSpacing, rightSpacing)
return 0
def OnSizePanel(self, event):
""" Handles the EVT_SIZE event for the FoldPanelBar. """
# skip all stuff when we are not initialised yet
if not self._controlCreated:
event.Skip()
return
foldrect = self.GetRect()
# fold panel itself. If too little space,
# don't show it
foldrect.SetX(0)
foldrect.SetY(0)
self._foldPanel.SetSize(foldrect[2:])
if self._extraStyle & FPB_COLLAPSE_TO_BOTTOM or self._extraStyle & FPB_EXCLUSIVE_FOLD:
rect = self.RepositionCollapsedToBottom()
vertical = self.IsVertical()
if vertical and rect.GetHeight() > 0 or not vertical and rect.GetWidth() > 0:
self.RefreshRect(rect)
# TODO: A smart way to check wether the old - new width of the
# panel changed, if so no need to resize the fold panel items
self.RedisplayFoldPanelItems()
def OnPressCaption(self, event):
""" Handles the EVT_CAPTIONBAR event in the FoldPanelBar. """
# act upon the folding or expanding status of the bar
# to expand or collapse the panel(s)
if event.GetFoldStatus():
self.Collapse(event.GetTag())
else:
self.Expand(event.GetTag())
event.Skip()
def RefreshPanelsFrom(self, item):
""" Refreshes all the panels from given index down to last one. """
try:
i = self._panels.index(item)
except:
raise "ERROR: Invalid Panel Passed To RefreshPanelsFrom: " + repr(item)
self.Freeze()
# if collapse to bottom is on, the panels that are not expanded
# should be drawn at the bottom. All panels that are expanded
# are drawn on top. The last expanded panel gets all the extra space
if self._extraStyle & FPB_COLLAPSE_TO_BOTTOM or self._extraStyle & FPB_EXCLUSIVE_FOLD:
offset = 0
for panels in self._panels:
if panels.IsExpanded():
offset = offset + panels.Reposition(offset)
# put all non collapsed panels at the bottom where there is space,
# else put them right behind the expanded ones
self.RepositionCollapsedToBottom()
else:
pos = self._panels[i].GetItemPos() + self._panels[i].GetPanelLength()
for j in range(i+1, len(self._panels)):
pos = pos + self._panels[j].Reposition(pos)
self.Thaw()
def RedisplayFoldPanelItems(self):
""" Resizes the fold panels so they match the width. """
# resize them all. No need to reposition
for panels in self._panels:
panels.ResizePanel()
panels.Refresh()
def RepositionCollapsedToBottom(self):
"""
Repositions all the collapsed panels to the bottom.
When it is not possible to align them to the bottom, stick
them behind the visible panels. The Rect holds the slack area
left between last repositioned panel and the bottom
panels. This needs to get a refresh.
"""
value = wx.Rect(0,0,0,0)
vertical = self.IsVertical()
# determine wether the number of panels left
# times the size of their captions is enough
# to be placed in the left over space
expanded = 0
collapsed = 0
collapsed, expanded, values = self.GetPanelsLength(collapsed, expanded)
# if no room stick them behind the normal ones, else
# at the bottom
if (vertical and [self.GetSize().GetHeight()] or \
[self.GetSize().GetWidth()])[0] - expanded - collapsed < 0:
offset = expanded
else:
# value is the region which is left unpainted
# I will send it back as 'slack' so it does not need to
# be recalculated.
value.SetHeight(self.GetSize().GetHeight())
value.SetWidth(self.GetSize().GetWidth())
if vertical:
value.SetY(expanded)
value.SetHeight(value.GetHeight() - expanded)
else:
value.SetX(expanded)
value.SetWidth(value.GetWidth() - expanded)
offset = (vertical and [self.GetSize().GetHeight()] or \
[self.GetSize().GetWidth()])[0] - collapsed
# go reposition
for panels in self._panels:
if not panels.IsExpanded():
offset = offset + panels.Reposition(offset)
return value
def GetPanelsLength(self, collapsed, expanded):
"""
Returns the length of the panels that are expanded and
collapsed.
This is useful to determine quickly what size is used to
display, and what is left at the bottom (right) to align the
collapsed panels.
"""
value = 0
# assumed here that all the panels that are expanded
# are positioned after each other from 0,0 to end.
for j in range(0, len(self._panels)):
offset = self._panels[j].GetPanelLength()
value = value + offset
if self._panels[j].IsExpanded():
expanded = expanded + offset
else:
collapsed = collapsed + offset
return collapsed, expanded, value
def Collapse(self, foldpanel):
"""
Collapses the given FoldPanel reference, and updates the
foldpanel bar.
In the FPB_COLLAPSE_TO_BOTTOM style, all collapsed captions
are put at the bottom of the control. In the normal mode, they
stay where they are.
"""
try:
item = self._panels.index(foldpanel)
except:
raise "ERROR: Invalid Panel Passed To Collapse: " + repr(foldpanel)
foldpanel.Collapse()
self.RefreshPanelsFrom(foldpanel)
def Expand(self, foldpanel):
"""
Expands the given FoldPanel reference, and updates the
foldpanel bar.
In the FPB_COLLAPSE_TO_BOTTOM style, they will be removed from
the bottom and the order where the panel originally was placed
is restored.
"""
fpbextrastyle = 0
if self._extraStyle & FPB_SINGLE_FOLD or self._extraStyle & FPB_EXCLUSIVE_FOLD:
fpbextrastyle = 1
for panel in self._panels:
panel.Collapse()
foldpanel.Expand()
if fpbextrastyle:
if self._extraStyle & FPB_EXCLUSIVE_FOLD:
self.RepositionCollapsedToBottom()
self.RefreshPanelsFrom(self._panels[0])
else:
self.RefreshPanelsFrom(foldpanel)
def ApplyCaptionStyle(self, foldpanel, cbstyle):
"""
Sets the style of the caption bar (`CaptionBar`) of the
FoldPanel.
The changes are applied immediately. All styles not set in the
CaptionBarStyle class are not applied. Use the CaptionBar
reference to indicate what captionbar you want to apply the
style to. To apply one style to all CaptionBar items, use
`ApplyCaptionStyleAll`
"""
foldpanel.ApplyCaptionStyle(cbstyle)
def ApplyCaptionStyleAll(self, cbstyle):
"""
Sets the style of all the caption bars of the FoldPanel.
The changes are applied immediately.
"""
for panels in self._panels:
self.ApplyCaptionStyle(panels, cbstyle)
def GetCaptionStyle(self, foldpanel):
"""
Returns the currently used caption style for the FoldPanel.
It is returned as a CaptionBarStyle class. After modifying it,
it can be set again.
"""
return foldpanel.GetCaptionStyle()
def IsVertical(self):
"""
Returns whether the CaptionBar has default orientation or not.
Default is vertical.
"""
return self._isVertical
def GetFoldPanel(self, item):
"""
Returns the panel associated with the index "item".
See the example at the bottom of the module, especially the events
for the "Collapse Me" and "Expand Me" buttons.
"""
try:
ind = self._panels[item]
return self._panels[item]
except:
raise "ERROR: List Index Out Of Range Or Bad Item Passed: " + repr(item) + \
". Item Should Be An Integer Between " + repr(0) + " And " + \
repr(len(self._panels))
def GetCount(self):
""" Returns the number of panels in the FoldPanelBar. """
try:
return len(self._panels)
except:
raise "ERROR: No Panels Have Been Added To FoldPanelBar"
# --------------------------------------------------------------------------------- #
# class FoldPanelItem
# --------------------------------------------------------------------------------- #
class FoldPanelItem(wx.Panel):
"""
This class is a child sibling of the `FoldPanelBar` class. It will
contain a `CaptionBar` class for receiving of events, and a the
rest of the area can be populated by a `wx.Panel` derived class.
"""
# Define Empty CaptionBar Style
EmptyCaptionBarStyle = CaptionBarStyle()
def __init__(self, parent, id=wx.ID_ANY, caption="", foldIcons=None,
collapsed=False, cbstyle=EmptyCaptionBarStyle):
""" Default Class Constructor. """
wx.Panel.__init__(self, parent, id, wx.Point(0,0), style=wx.CLIP_CHILDREN)
self._controlCreated = False
self._UserSize = 0
self._PanelSize = 0
self._LastInsertPos = 0
self._itemPos = 0
self._userSized = False
if foldIcons is None:
foldIcons = wx.ImageList(16, 16)
bmp = GetExpandedIconBitmap()
foldIcons.Add(bmp)
bmp = GetCollapsedIconBitmap()
foldIcons.Add(bmp)
self._foldIcons = foldIcons
# create the caption bar, in collapsed or expanded state
self._captionBar = CaptionBar(self, wx.ID_ANY, wx.Point(0,0),
size=wx.DefaultSize, caption=caption,
foldIcons=foldIcons, cbstyle=cbstyle)
if collapsed:
self._captionBar.Collapse()
self._controlCreated = True
# make initial size for component, if collapsed, the
# size is determined on the panel height and won't change
size = self._captionBar.GetSize()
self._PanelSize = (self.IsVertical() and [size.GetHeight()] or \
[size.GetWidth()])[0]
self._LastInsertPos = self._PanelSize
self._items = []
self.Bind(EVT_CAPTIONBAR, self.OnPressCaption)
self.Bind(wx.EVT_PAINT, self.OnPaint)
def AddWindow(self, window, flags=FPB_ALIGN_WIDTH, Spacing=FPB_DEFAULT_SPACING,
leftSpacing=FPB_DEFAULT_LEFTLINESPACING,
rightSpacing=FPB_DEFAULT_RIGHTLINESPACING):
"""
Adds a window item to the list of items on this panel.
The flags are FPB_ALIGN_LEFT for a non sizing window element,
and FPB_ALIGN_WIDTH for a width aligned item. The Spacing
parameter reserves a number of pixels before the window
element, and leftSpacing is an indent. rightSpacing is only
relevant when the style FPB_ALIGN_WIDTH is chosen.
"""
wi = FoldWindowItem(self, window, Type="WINDOW", flags=flags, Spacing=Spacing,
leftSpacing=leftSpacing, rightSpacing=rightSpacing)
self._items.append(wi)
vertical = self.IsVertical()
self._Spacing = Spacing
self._leftSpacing = leftSpacing
self._rightSpacing = rightSpacing
xpos = (vertical and [leftSpacing] or [self._LastInsertPos + Spacing])[0]
ypos = (vertical and [self._LastInsertPos + Spacing] or [leftSpacing])[0]
window.SetDimensions(xpos, ypos, -1, -1, wx.SIZE_USE_EXISTING)
self._LastInsertPos = self._LastInsertPos + wi.GetWindowLength(vertical)
self.ResizePanel()
def AddSeparator(self, colour=wx.BLACK, Spacing=FPB_DEFAULT_SPACING,
leftSpacing=FPB_DEFAULT_LEFTSPACING,
rightSpacing=FPB_DEFAULT_RIGHTSPACING):
"""
Adds a separator item to the list of items on this panel. """
wi = FoldWindowItem(self, window=None, Type="SEPARATOR",
flags=FPB_ALIGN_WIDTH, y=self._LastInsertPos,
colour=colour, Spacing=Spacing, leftSpacing=leftSpacing,
rightSpacing=rightSpacing)
self._items.append(wi)
self._LastInsertPos = self._LastInsertPos + \
wi.GetWindowLength(self.IsVertical())
self.ResizePanel()
def Reposition(self, pos):
"""
Repositions this FoldPanelBar and reports the length occupied
for the next FoldPanelBar in the list.
"""
# NOTE: Call Resize before Reposition when an item is added, because the new
# size needed will be calculated by Resize. Of course the relative position
# of the controls have to be correct in respect to the caption bar
self.Freeze()
vertical = self.IsVertical()
xpos = (vertical and [-1] or [pos])[0]
ypos = (vertical and [pos] or [-1])[0]
self.SetDimensions(xpos, ypos, -1, -1, wx.SIZE_USE_EXISTING)
self._itemPos = pos
self.Thaw()
return self.GetPanelLength()
def OnPressCaption(self, event):
""" Handles the EVT_CAPTIONBAR event in the FoldPanelItem. """
# tell the upper container we are responsible
# for this event, so it can fold the panel item
# and do a refresh
event.SetTag(self)
event.Skip()
def ResizePanel(self):
""" Resizes the panel. """
# prevent unnecessary updates by blocking repaints for a sec
self.Freeze()
vertical = self.IsVertical()
# force this panel to take the width of the parent panel and the y of the
# user or calculated width (which will be recalculated by the contents here)
if self._captionBar.IsCollapsed():
size = self._captionBar.GetSize()
self._PanelSize = (vertical and [size.GetHeight()] or [size.GetWidth()])[0]
else:
size = self.GetBestSize()
self._PanelSize = (vertical and [size.GetHeight()] or [size.GetWidth()])[0]
if self._UserSize:
if vertical:
size.SetHeight(self._UserSize)
else:
size.SetWidth(self._UserSize)
pnlsize = self.GetParent().GetSize()
if vertical:
size.SetWidth(pnlsize.GetWidth())
else:
size.SetHeight(pnlsize.GetHeight())
# resize caption bar
xsize = (vertical and [size.GetWidth()] or [-1])[0]
ysize = (vertical and [-1] or [size.GetHeight()])[0]
self._captionBar.SetSize((xsize, ysize))
# resize the panel
self.SetSize(size)
# go by all the controls and call Layout
for items in self._items:
items.ResizeItem((vertical and [size.GetWidth()] or \
[size.GetHeight()])[0], vertical)
self.Thaw()
def OnPaint(self, event):
""" Handles the EVT_PAINT event in the FoldPanelItem. """
# draw all the items that are lines
dc = wx.PaintDC(self)
vertical = self.IsVertical()
for item in self._items:
if item.GetType() == "SEPARATOR":
pen = wx.Pen(item.GetLineColour(), 1, wx.SOLID)
dc.SetPen(pen)
a = item.GetLeftSpacing()
b = item.GetLineY() + item.GetSpacing()
c = item.GetLineLength()
d = a + c
if vertical:
dc.DrawLine(a, b, d, b)
else:
dc.DrawLine(b, a, b, d)
event.Skip()
def IsVertical(self):
"""
Returns wether the CaptionBar Has Default Orientation Or Not.
Default is vertical.
"""
# grandparent of FoldPanelItem is FoldPanelBar
# default is vertical
if isinstance(self.GetGrandParent(), FoldPanelBar):
return self.GetGrandParent().IsVertical()
else:
raise "ERROR: Wrong Parent " + repr(self.GetGrandParent())
def IsExpanded(self):
"""
Returns expanded or collapsed status. If the panel is
expanded, True is returned.
"""
return not self._captionBar.IsCollapsed()
def GetItemPos(self):
""" Returns item's position. """
return self._itemPos
def Collapse(self):
# this should not be called by the user, because it doesn't trigger the
# parent to tell it that we are collapsed or expanded, it only changes
# visual state
self._captionBar.Collapse()
self.ResizePanel()
def Expand(self):
# this should not be called by the user, because it doesn't trigger the
# parent to tell it that we are collapsed or expanded, it only changes
# visual state
self._captionBar.Expand()
self.ResizePanel()
def GetPanelLength(self):
""" Returns size of panel. """
if self._captionBar.IsCollapsed():
return self.GetCaptionLength()
elif self._userSized:
return self._UserSize
return self._PanelSize
def GetCaptionLength(self):
"""
Returns height of caption only. This is for folding
calculation purposes.
"""
size = self._captionBar.GetSize()
return (self.IsVertical() and [size.GetHeight()] or [size.GetWidth()])[0]
def ApplyCaptionStyle(self, cbstyle):
""" Applies the style defined in cbstyle to the CaptionBar."""
self._captionBar.SetCaptionStyle(cbstyle)
def GetCaptionStyle(self):
"""
Returns the current style of the captionbar in a
CaptionBarStyle class.
This can be used to change and set back the changes.
"""
return self._captionBar.GetCaptionStyle()
# ----------------------------------------------------------------------------------- #
# class FoldWindowItem
# ----------------------------------------------------------------------------------- #
class FoldWindowItem:
"""
This class is a child sibling of the `FoldPanelItem` class. It
will contain wx.Window that can be either a separator (a colored
line simulated by a wx.Window) or a wxPython controls (such as a
wx.Button, a wx.ListCtrl etc...).
"""
def __init__(self, parent, window=None, **kw):
"""
Default Class Constructor
Initialize with::
Type = "WINDOW", flags = FPB_ALIGN_WIDTH,
Spacing = FPB_DEFAULT_SPACING,
leftSpacing = FPB_DEFAULT_LEFTSPACING,
rightSpacing = FPB_DEFAULT_RIGHTSPACING
or::
Type = "SEPARATOR"
y, lineColor = wx.BLACK,
flags = FPB_ALIGN_WIDTH,
Spacing = FPB_DEFAULT_SPACING,
leftSpacing = FPB_DEFAULT_LEFTLINESPACING,
rightSpacing = FPB_DEFAULT_RIGHTLINESPACING
"""
if not kw.has_key("Type"):
raise 'ERROR: Missing Window Type Information. This Should Be "WINDOW" Or "SEPARATOR"'
if kw.get("Type") == "WINDOW":
# Window constructor. This initialises the class as a wx.Window Type
if kw.has_key("flags"):
self._flags = kw.get("flags")
else:
self._flags = FPB_ALIGN_WIDTH
if kw.has_key("Spacing"):
self._Spacing = kw.get("Spacing")
else:
self._Spacing = FPB_DEFAULT_SPACING
if kw.has_key("leftSpacing"):
self._leftSpacing = kw.get("leftSpacing")
else:
self._leftSpacing = FPB_DEFAULT_LEFTSPACING
if kw.has_key("rightSpacing"):
self._rightSpacing = kw.get("rightSpacing")
else:
self._rightSpacing = FPB_DEFAULT_RIGHTSPACING
self._lineY = 0
self._sepLineColour = None
self._wnd = window
elif kw.get("Type") == "SEPARATOR":
# separator constructor. This initialises the class as a separator type
if kw.has_key("y"):
self._lineY = kw.get("y")
else:
raise "ERROR: Undefined Y Position For The Separator"
if kw.has_key("lineColour"):
self._sepLineColour = kw.get("lineColour")
else:
self._sepLineColour = wx.BLACK
if kw.has_key("flags"):
self._flags = kw.get("flags")
else:
self._flags = FPB_ALIGN_WIDTH
if kw.has_key("Spacing"):
self._Spacing = kw.get("Spacing")
else:
self._Spacing = FPB_DEFAULT_SPACING
if kw.has_key("leftSpacing"):
self._leftSpacing = kw.get("leftSpacing")
else:
self._leftSpacing = FPB_DEFAULT_LEFTSPACING
if kw.has_key("rightSpacing"):
self._rightSpacing = kw.get("rightSpacing")
else:
self._rightSpacing = FPB_DEFAULT_RIGHTSPACING
self._wnd = window
else:
raise "ERROR: Undefined Window Type Selected: " + repr(kw.get("Type"))
self._type = kw.get("Type")
self._lineLength = 0
def GetType(self):
return self._type
def GetLineY(self):
return self._lineY
def GetLineLength(self):
return self._lineLength
def GetLineColour(self):
return self._sepLineColour
def GetLeftSpacing(self):
return self._leftSpacing
def GetRightSpacing(self):
return self._rightSpacing
def GetSpacing(self):
return self._Spacing
def GetWindowLength(self, vertical=True):
"""
Returns space needed by the window if type is FoldWindowItem
"WINDOW" and returns the total size plus the extra spacing.
"""
value = 0
if self._type == "WINDOW":
size = self._wnd.GetSize()
value = (vertical and [size.GetHeight()] or [size.GetWidth()])[0] + \
self._Spacing
elif self._type == "SEPARATOR":
value = 1 + self._Spacing
return value
def ResizeItem(self, size, vertical=True):
"""
Resizes the element, whatever it is.
A separator or line will be always aligned by width or height
depending on orientation of the whole panel.
"""
if self._flags & FPB_ALIGN_WIDTH:
# align by taking full width
mySize = size - self._leftSpacing - self._rightSpacing
if mySize < 0:
mySize = 10 # can't have negative width
if self._type == "SEPARATOR":
self._lineLength = mySize
else:
xsize = (vertical and [mySize] or [-1])[0]
ysize = (vertical and [-1] or [mySize])[0]
self._wnd.SetSize((xsize, ysize))
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