c++ - GTK y-axis padded label doesn't vertically ALIGN_BOTTOM? -

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i'm trying align label there space on top , not on bottom. want 30 between label1 , label2 not between label2 , label3. set label2 y padding 30 , on label2 y gtk::align_bottom, doesn't seem work. instead end looks in screenshot 30 on top , 30 on bottom of label2. know there ways around want know wrong code? can't figure out. tried changing pack options didn't work.

here screenshot , here sample code:

int main( int argc, char *argv[] ) {     gtk::main kit( argc, argv );      gtk::window window;     window.set_default_size( 400, 400 );      gtk::label label1( "this first label." );     gtk::label label2( "this second label." );     gtk::label label3( "this third label." );      label2.set_padding( 0, 30 );     label2.set_alignment( gtk::align_right, gtk::align_bottom );      gtk::vbox vbox;     vbox.pack_start( label1, false, false, 0 );     vbox.pack_start( label2, false, false, 0 );     vbox.pack_start( label3, false, false, 0 );      window.add( vbox );     window.show_all_children();      gtk::main::run( window );      return 0; }

thanks

you'll need (untested):

gtk::alignment alignment( 0.0, 1.0, 0.0, 0.0 ); alignment.set_padding( 30, 0, 0, 0 ); alignment.add( label2 );

the problem label.set_alignment() doesn't align within padding, within leftover space allocated widget.


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