On 08/22/11 18:31, Greg Ercolano wrote:
> On 08/22/11 14:49, Jeff Paranich wrote:
>> Hi All,
>>
>> I've read "Article 415: How Does Resizing Work?" and have been battling with trying to get one of my windows to behave how I'd like.  I have done a mock sketch of my interface... it can be viewed here:
>>
>> http://i56.tinypic.com/2i94b4z.png
>>
>> The behavior I'm seeking may not be possible in FLTK, but I was hoping that in the picture where Fl_Hold_Browser is located, that the right-face of the widget (highlighted in yellow) would be clickable and could be resized horizontally, and in doing so Fl_Box, Fl_Table_Row, and Fl_Text_Display would be compressed.  And with this functionality, Fl_Window should still be resizable however when resized Fl_Hold_Browser would remain horizontally fixed but can stretch vertically, and all other widgets resize both horizontally and vertically.
>>
>> Hope this makes sense.  Is this or something very similar achievable?
> 
> 	Sounds like you should use Fl_Tile to manage the resizable aspect
> 	in this case.
> 
> 	I'd suggest putting all that stuff to the right of the yellow bar
> 	in a group, and make an Fl_Tile that contains the hold browser (left of yellow bar)
> 	and the aforementioned group (to the right of the yellow bar), and have
> 	the edges common so that when you glide over the border between the two,
> 	Fl_Tile will let you interactively resize them.


    Here's the above implemented as code.

    To get Fl_Tile to act as a "resizer", it's important that the tile's
    two children (the "hold" browser and the "group") have their common edges
    /touching/ each other. This causes Fl_Tile to make this boundary mouse
    sensitive to interactive resizing.

    I was lazy and left out the two widgets at the lower-right, cause
    their behavior will just be an extension of the others.

#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/Fl_Group.H>
#include <FL/Fl_Tile.H>
#include <FL/Fl_Menu_Bar.H>
#include <FL/Fl_Box.H>
#include <FL/Fl_Table_Row.H>
#include <FL/Fl_Text_Display.H>
#include <FL/Fl_Hold_Browser.H>

int main() {
    Fl_Window *win = new Fl_Window(400,500);

    Fl_Menu_Bar *menu = new Fl_Menu_Bar(0,0,400,25);
    menu->add("File/Foo");
    menu->add("Edit/Bar");

    Fl_Tile *tile = new Fl_Tile(10,menu->y()+menu->h()+10,
                                400-20, 500-(menu->y()+menu->h()+10)-10);
    tile->box(FL_FLAT_BOX);
    tile->color(9);
    tile->begin();

        Fl_Hold_Browser *hold = new Fl_Hold_Browser(10,40,150-10,500-40-10);
        hold->add("One");
        hold->add("Two");
        hold->add("Three");

        Fl_Group *group = new Fl_Group(150,40,400-150-10, 500-40-10);
        group->box(FL_FLAT_BOX);
        group->color(FL_BLUE+8);
        group->begin();

            Fl_Box *box = new Fl_Box(group->x()+10,40,400-(group->x()+10)-10,25,"Fl_Box");
            box->align(FL_ALIGN_INSIDE|FL_ALIGN_CENTER);
            box->box(FL_FLAT_BOX);
            box->color(FL_GREEN+8);

            Fl_Table_Row *table = new Fl_Table_Row(box->x(), box->y()+box->h()+10,
                                                   box->w(), group->h()-(box->h()+10));
        group->end();
        group->resizable(table);
    tile->end();

    win->resizable(tile);
    win->show();
    return(Fl::run());
}