Hi,
I tried this one over on the main wx-users list as well, but thought I would
try it here since I am using wxRuby:
I am using wxWidgets 2.8.7 on a linux box using the GTK build.
I have pared down my issue to the simplest case: I am trying to use a
horizontal BoxSizer to split a frame into two sections: a left and right
side. I want the left side to stretch proportionally and I want the right
side to be of a fixed width. Moreover, I want to enclose the right side in
a wxStaticBox.
I happen to be using wxRuby, but the code should be understandable to C++
programmers. This is in the constructor of my frame subclass:
lr_sizer = BoxSizer.new( HORIZONTAL )
txt = StaticText.new (self, -1, "Text Left")
lr_sizer.add(txt, 1, EXPAND | ALL, 4)
static_box = StaticBox.new(self, -1, "Static Box")
right_sizer = StaticBoxSizer.new( static_box, VERTICAL )
lr_sizer.add(right_sizer, 0, EXPAND | ALL, 4)
set_sizer(lr_sizer)
layout()
This code runs and gives almost what I want. The text appears on the left
and the static box on the right. However, the static box is a tiny sliver.
What I want is to fix the width of the static box. So I try adding a size
argument to the static box constructor:
static_box = StaticBox.new(self, -1, "Static Box", :size =>
[100, 40] )
But now I get something very unexpected to me. The static box is indeed
wider, but it has the same left hand screen coordinate as it did when it was
a sliver, so that the static box is mostly out of the frame. I only see a
tiny slice of it. Resizing the frame moves the whole box, so it is always
mostly out of the frame. It is as if the static box were positioned
according to the minimum size, and then grown to the right, to respect the
requested box size. But this is clearly not what I want. I want the box to
be sized as requested, and then fit using the spacers.
How do I do that? Note that I tried using a panel inside my frame and
adding everything to the panel, but I got the exact same result.
Thanks for any help.
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http://rubyforge.org/mailman/listinfo/wxruby-users
Hello Robert,>From reading what you have described here, it sounds as though you wouldneed to change the right_sizer addition to the lr_sizer. What I would suggest, is trying this: lr_sizer.add(right_sizer,1,EXPAND|ALL,4) In order, the parameters are: Sizer/Window, Proportion, Flags, Border Everything else is pretty self explanitory, except for the Proportion. This is often not well known, or understood. Proprotion gives the sizer/control being added to the sizer, and propotional view of how it should resize itself when layout() is called. Specifically, 0 means that it will use what it can, and nothing else. 1 means that if you have 2 controls in the sizer, it will use 1/2 of the sizer''s dimensions when re-sizing / layout(). The main thing to note here, is that if you want to get more specifics of how to design the layout, will allow you to expand the sizes of items included, by proportional values. Check that out, you may need to do some twinking here and there between the controls you add, to get the spacing you want. TTFN, Mario Steele On 12/28/07, Robert Anderson <rwa000 at gmail.com> wrote:> > > Hi, > > I tried this one over on the main wx-users list as well, but thought I > would try it here since I am using wxRuby: > > I am using wxWidgets 2.8.7 on a linux box using the GTK build. > > I have pared down my issue to the simplest case: I am trying to use a > horizontal BoxSizer to split a frame into two sections: a left and right > side. I want the left side to stretch proportionally and I want the right > side to be of a fixed width. Moreover, I want to enclose the right side in > a wxStaticBox. > > I happen to be using wxRuby, but the code should be understandable to C++ > programmers. This is in the constructor of my frame subclass: > > lr_sizer = BoxSizer.new( HORIZONTAL ) > > txt = StaticText.new (self, -1, "Text Left") > lr_sizer.add(txt, 1, EXPAND | ALL, 4) > > static_box = StaticBox.new(self, -1, "Static Box") > right_sizer = StaticBoxSizer.new( static_box, VERTICAL ) > > lr_sizer.add(right_sizer, 0, EXPAND | ALL, 4) > set_sizer(lr_sizer) > layout() > > > This code runs and gives almost what I want. The text appears on the left > and the static box on the right. However, the static box is a tiny sliver. > What I want is to fix the width of the static box. So I try adding a size > argument to the static box constructor: > > static_box = StaticBox.new(self, -1, "Static Box", :size => [100, 40] ) > > But now I get something very unexpected to me. The static box is indeed > wider, but it has the same left hand screen coordinate as it did when it was > a sliver, so that the static box is mostly out of the frame. I only see a > tiny slice of it. Resizing the frame moves the whole box, so it is always > mostly out of the frame. It is as if the static box were positioned > according to the minimum size, and then grown to the right, to respect the > requested box size. But this is clearly not what I want. I want the box to > be sized as requested, and then fit using the spacers. > > How do I do that? Note that I tried using a panel inside my frame and > adding everything to the panel, but I got the exact same result. > > Thanks for any help. > > > _______________________________________________ > wxruby-users mailing list > wxruby-users at rubyforge.org > http://rubyforge.org/mailman/listinfo/wxruby-users >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://rubyforge.org/pipermail/wxruby-users/attachments/20071228/6094e8ef/attachment-0001.html
Mario, I think I have a pretty reasonable understanding of the proportional flag. I do not want the right_sizer to be proportional at all. I want it to be of fixed size. Therefore proportional_flag should be 0, correct? If I change it to 1, it changes size when the frame changes size. This is not what I want. I was able to work around this apparent bug (in wxWidgets) by adding a dummy spacer of height 0 to the StaticBoxSizer that is of the fixed width that I want. I don''t see any reason why that should work whereas setting the size of the StaticBoxSizer does not. Thanks, Bob On Dec 28, 2007 5:12 PM, Mario Steele <mario at ruby-im.net> wrote:> Hello Robert, > > From reading what you have described here, it sounds as though you would > need to change the right_sizer addition to the lr_sizer. > > What I would suggest, is trying this: > > lr_sizer.add(right_sizer,1,EXPAND|ALL,4) > > In order, the parameters are: Sizer/Window, Proportion, Flags, Border > > Everything else is pretty self explanitory, except for the Proportion. > This is often not well known, or understood. Proprotion gives the > sizer/control being added to the sizer, and propotional view of how it > should resize itself when layout() is called. Specifically, 0 means that it > will use what it can, and nothing else. 1 means that if you have 2 controls > in the sizer, it will use 1/2 of the sizer''s dimensions when re-sizing / > layout(). The main thing to note here, is that if you want to get more > specifics of how to design the layout, will allow you to expand the sizes of > items included, by proportional values. > > Check that out, you may need to do some twinking here and there between > the controls you add, to get the spacing you want. > > TTFN, > > Mario Steele > > > On 12/28/07, Robert Anderson <rwa000 at gmail.com> wrote: > > > > > Hi, > > > > I tried this one over on the main wx-users list as well, but thought I > > would try it here since I am using wxRuby: > > > > I am using wxWidgets 2.8.7 on a linux box using the GTK build. > > > > I have pared down my issue to the simplest case: I am trying to use a > > horizontal BoxSizer to split a frame into two sections: a left and right > > side. I want the left side to stretch proportionally and I want the right > > side to be of a fixed width. Moreover, I want to enclose the right side in > > a wxStaticBox. > > > > I happen to be using wxRuby, but the code should be understandable to > > C++ programmers. This is in the constructor of my frame subclass: > > > > lr_sizer = BoxSizer.new( HORIZONTAL ) > > > > txt = StaticText.new (self, -1, "Text Left") > > lr_sizer.add(txt, 1, EXPAND | ALL, 4) > > > > static_box = StaticBox.new(self, -1, "Static Box") > > right_sizer = StaticBoxSizer.new( static_box, VERTICAL ) > > > > lr_sizer.add(right_sizer, 0, EXPAND | ALL, 4) > > set_sizer(lr_sizer) > > layout() > > > > > > This code runs and gives almost what I want. The text appears on the > > left and the static box on the right. However, the static box is a tiny > > sliver. What I want is to fix the width of the static box. So I try adding > > a size argument to the static box constructor: > > > > static_box = StaticBox.new(self, -1, "Static Box", :size => [100, 40] > > ) > > > > But now I get something very unexpected to me. The static box is indeed > > wider, but it has the same left hand screen coordinate as it did when it was > > a sliver, so that the static box is mostly out of the frame. I only see a > > tiny slice of it. Resizing the frame moves the whole box, so it is always > > mostly out of the frame. It is as if the static box were positioned > > according to the minimum size, and then grown to the right, to respect the > > requested box size. But this is clearly not what I want. I want the box to > > be sized as requested, and then fit using the spacers. > > > > How do I do that? Note that I tried using a panel inside my frame and > > adding everything to the panel, but I got the exact same result. > > > > Thanks for any help. > > > > > > _______________________________________________ > > wxruby-users mailing list > > wxruby-users at rubyforge.org > > http://rubyforge.org/mailman/listinfo/wxruby-users > > > > > _______________________________________________ > wxruby-users mailing list > wxruby-users at rubyforge.org > http://rubyforge.org/mailman/listinfo/wxruby-users >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://rubyforge.org/pipermail/wxruby-users/attachments/20071228/64dab86a/attachment.html
Robert Anderson wrote:> I am trying to use a horizontal BoxSizer to split a frame into two > sections: a left and right side. I want the left side to stretch > proportionally and I want the right side to be of a fixed width. > Moreover, I want to enclose the right side in a wxStaticBox. >Perhaps it would help if you add some actual widgets to the right hand panel and see then if it sizes as you want. I think that Wx::StaticBox itself doesn''t have a minimum notional size - it''s a grouping for other widgets. I tried adding a Panel to the right hand size like: something = Wx::Panel.new(self, :size => [100, 100]) right_sizer.add(something) And then it gives the effect you desire: a fixed size on one size, a variable on the other. You might also have a look at splitter window or sash layouts, to see if that''s what you''re looking for. alex
On Dec 28, 2007 7:09 PM, Alex Fenton <alex at pressure.to> wrote:> Robert Anderson wrote: > > I am trying to use a horizontal BoxSizer to split a frame into two > > sections: a left and right side. I want the left side to stretch > > proportionally and I want the right side to be of a fixed width. > > Moreover, I want to enclose the right side in a wxStaticBox. > > > Perhaps it would help if you add some actual widgets to the right hand > panel and see then if it sizes as you want. I think that Wx::StaticBox > itself doesn''t have a minimum notional size - it''s a grouping for other > widgets.Yeah, that''s what I ended up doing and it does work. But this is a bug IMO. My wxStaticBox houses a dynamic number of widgets with zero being the minimum number. But I always have to make sure there''s an invisible dummy widget in there to get the behavior right, which is awkward at best. Thanks, Bob -------------- next part -------------- An HTML attachment was scrubbed... URL: http://rubyforge.org/pipermail/wxruby-users/attachments/20071228/c229c51f/attachment.html