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- //
- // "$Id: Fl_Pack.cxx,v 1.6 1999/01/07 19:17:24 mike Exp $"
- //
- // Packing widget for the Fast Light Tool Kit (FLTK).
- //
- // Copyright 1998-1999 by Bill Spitzak and others.
- //
- // This library is free software; you can redistribute it and/or
- // modify it under the terms of the GNU Library General Public
- // License as published by the Free Software Foundation; either
- // version 2 of the License, or (at your option) any later version.
- //
- // This library is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- // Library General Public License for more details.
- //
- // You should have received a copy of the GNU Library General Public
- // License along with this library; if not, write to the Free Software
- // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- // USA.
- //
- // Please report all bugs and problems to "fltk-bugs@easysw.com".
- //
-
- // Based on code by Curtis Edwards
- // Group that compresses all it's children together and resizes to surround
- // them on each redraw (only if box() is zero)
- // Bugs: ?
-
- #include <FL/Fl.H>
- #include <FL/Fl_Pack.H>
- #include <FL/fl_draw.H>
-
- Fl_Pack::Fl_Pack(int x,int y,int w ,int h,const char *l)
- : Fl_Group(x, y, w, h, l) {
- resizable(0);
- spacing_ = 0;
- // type(VERTICAL); // already set like this
- }
-
- void Fl_Pack::draw() {
- int tx = x()+Fl::box_dx(box());
- int ty = y()+Fl::box_dy(box());
- int tw = w()-Fl::box_dw(box());
- int th = h()-Fl::box_dh(box());
- int current_position = horizontal() ? tx : ty;
- int maximum_position = current_position;
- uchar d = damage();
- Fl_Widget*const* a = array();
- for (int i = children(); i--;) {
- Fl_Widget* o = *a++;
- if (o->visible()) {
- int X,Y,W,H;
- if (horizontal()) {
- X = current_position;
- W = o->w();
- Y = ty;
- H = th;
- } else {
- X = tx;
- W = tw;
- Y = current_position;
- H = o->h();
- }
- if (spacing_ && current_position>maximum_position &&
- (X != o->x() || Y != o->y() || d&FL_DAMAGE_ALL)) {
- fl_color(color());
- if (horizontal())
- fl_rectf(maximum_position, ty, spacing_, th);
- else
- fl_rectf(tx, maximum_position, tw, spacing_);
- }
- if (X != o->x() || Y != o->y() || W != o->w() || H != o->h()) {
- o->resize(X,Y,W,H);
- o->clear_damage(FL_DAMAGE_ALL);
- }
- if (d&FL_DAMAGE_ALL) draw_child(*o); else update_child(*o);
- // child's draw() can change it's size, so use new size:
- current_position += (horizontal() ? o->w() : o->h());
- if (current_position > maximum_position)
- maximum_position = current_position;
- current_position += spacing_;
- }
- }
-
- if (horizontal()) {
- if (maximum_position < tx+tw) {
- fl_color(color());
- fl_rectf(maximum_position, ty, tx+tw-maximum_position, th);
- }
- tw = maximum_position-tx;
- } else {
- if (maximum_position < ty+th) {
- fl_color(color());
- fl_rectf(tx, maximum_position, tw, ty+th-maximum_position);
- }
- th = maximum_position-ty;
- }
-
- tw += Fl::box_dw(box()); if (tw <= 0) tw = 1;
- th += Fl::box_dh(box()); if (th <= 0) th = 1;
- if (tw != w() || th != h()) {Fl_Widget::resize(x(),y(),tw,th); d = FL_DAMAGE_ALL;}
- if (d&FL_DAMAGE_ALL) draw_box();
- }
-
- //
- // End of "$Id: Fl_Pack.cxx,v 1.6 1999/01/07 19:17:24 mike Exp $".
- //
-