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