Added layout menu to FLUID. The menu contains

many items th align and resize groups of selected
widgets.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@2164 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 324 insertions, 0 deletions

diff --git a/fluid/align_widget.cxx b/fluid/align_widget.cxx
new file mode 100644
index 000000000..f0777479c
--- /dev/null
+++ b/fluid/align_widget.cxx
@@ -0,0 +1,324 @@
+//
+//
+//
+// alignment code for the Fast Light Tool Kit (FLTK).
+//
+// Copyright 1998-2002 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@fltk.org".
+//
+
+#include <FL/Fl.H>
+#include "Fl_Widget_Type.h"
+
+/**
+ * the first behaviour always uses the first selected widget as a reference
+ * the second behaviour uses the larges widget (most extreme positions) as a reference
+ */
+#define BREAK_ON_FIRST break
+//#define BREAK_ON_FIRST
+
+void align_widget_cb(Fl_Widget*, long how) 
+{
+  const int max = 32768, min = -32768;
+  int left, right, top, bot, wdt, hgt, n;
+  Fl_Type *o;
+  switch ( how )
+  {
+  //---- align
+  case 10: // align left
+    left = max;
+    for (o = Fl_Type::first; o; o = o->next)
+      if (o->selected && o->is_widget())
+      {
+	Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	if (w->x()<left)
+	  left = w->x();
+	BREAK_ON_FIRST;
+      }
+    if (left!=max)
+      for (Fl_Type *o = Fl_Type::first; o; o = o->next)
+	if (o->selected && o->is_widget())
+	{
+	  Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	  w->resize(left, w->y(), w->w(), w->h());
+	  w->redraw();
+	  w->window()->redraw();
+	}
+    break;
+  case 11: // align h.center
+    left = max; right = min;
+    for (o = Fl_Type::first; o; o = o->next)
+      if (o->selected && o->is_widget())
+      {
+	Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	if (w->x()<left)
+	  left = w->x();
+	if (w->x()+w->w()>right)
+	  right = w->x()+w->w();
+	BREAK_ON_FIRST;
+      }
+    if (left!=max)
+    {
+      int center2 = left+right;
+      for (Fl_Type *o = Fl_Type::first; o; o = o->next)
+	if (o->selected && o->is_widget())
+	{
+	  Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	  w->resize((center2-w->w())/2, w->y(), w->w(), w->h());
+	  w->redraw();
+	  w->window()->redraw();
+	}
+    }
+    break;
+  case 12: // align right
+    right = min;
+    for (o = Fl_Type::first; o; o = o->next)
+      if (o->selected && o->is_widget())
+      {
+	Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	if (w->x()+w->w()>right)
+	  right = w->x()+w->w();
+	BREAK_ON_FIRST;
+      }
+    if (right!=min)
+      for (Fl_Type *o = Fl_Type::first; o; o = o->next)
+	if (o->selected && o->is_widget())
+	{
+	  Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	  w->resize(right-w->w(), w->y(), w->w(), w->h());
+	  w->redraw();
+	  w->window()->redraw();
+	}
+    break;
+  case 13: // align top
+    top = max;
+    for (o = Fl_Type::first; o; o = o->next)
+      if (o->selected && o->is_widget())
+      {
+	Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	if (w->y()<top)
+	  top = w->y();
+	BREAK_ON_FIRST;
+      }
+    if (top!=max)
+      for (Fl_Type *o = Fl_Type::first; o; o = o->next)
+	if (o->selected && o->is_widget())
+	{
+	  Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	  w->resize(w->x(), top, w->w(), w->h());
+	  w->redraw();
+	  w->window()->redraw();
+	}
+    break;
+  case 14: // align v.center
+    top = max; bot = min;
+    for (o = Fl_Type::first; o; o = o->next)
+      if (o->selected && o->is_widget())
+      {
+	Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	if (w->y()<top)
+	  top = w->y();
+	if (w->y()+w->h()>bot)
+	  bot = w->y()+w->h();
+	BREAK_ON_FIRST;
+      }
+    if (top!=max)
+    {
+      int center2 = top+bot;
+      for (Fl_Type *o = Fl_Type::first; o; o = o->next)
+	if (o->selected && o->is_widget())
+	{
+	  Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	  w->resize(w->x(), (center2-w->h())/2, w->w(), w->h());
+	  w->redraw();
+	  w->window()->redraw();
+	}
+    }
+    break;
+  case 15: // align bottom
+    bot = min;
+    for (o = Fl_Type::first; o; o = o->next)
+      if (o->selected && o->is_widget())
+      {
+	Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	if (w->y()+w->h()>bot)
+	  bot = w->y()+w->h();
+	BREAK_ON_FIRST;
+      }
+    if (bot!=min)
+      for (Fl_Type *o = Fl_Type::first; o; o = o->next)
+	if (o->selected && o->is_widget())
+	{
+	  Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	  w->resize( w->x(), bot-w->h(), w->w(), w->h());
+	  w->redraw();
+	  w->window()->redraw();
+	}
+    break;
+  //---- space evently
+  case 20: // space evenly across
+    left = max; right = min; wdt = 0, n = 0;
+    for (o = Fl_Type::first; o; o = o->next)
+      if (o->selected && o->is_widget())
+      {
+	Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	if (w->x()<left)
+	  left = w->x();
+	if (w->x()+w->w()>right)
+	  right = w->x()+w->w();
+	wdt += w->w();
+	n++;
+      }
+    wdt = (right-left)-wdt;
+    n--;
+    if (n>0)
+    {
+      int cnt = 0, wsum = 0;
+      for (Fl_Type *o = Fl_Type::first; o; o = o->next)
+	if (o->selected && o->is_widget())
+	{
+	  Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	  w->resize(left+wsum+wdt*cnt/n, w->y(), w->w(), w->h());
+	  w->redraw();
+	  w->window()->redraw();
+	  cnt++;
+	  wsum += w->w();
+	}
+    }
+    break;
+  case 21: // space evenly down
+    top = max; bot = min; hgt = 0, n = 0;
+    for (o = Fl_Type::first; o; o = o->next)
+      if (o->selected && o->is_widget())
+      {
+	Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	if (w->y()<top)
+	  top = w->y();
+	if (w->y()+w->h()>bot)
+	  bot = w->y()+w->h();
+	hgt += w->h();
+	n++;
+      }
+    hgt = (bot-top)-hgt;
+    n--;
+    if (n>0)
+    {
+      int cnt = 0, hsum = 0;
+      for (Fl_Type *o = Fl_Type::first; o; o = o->next)
+	if (o->selected && o->is_widget())
+	{
+	  Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	  w->resize(w->x(), top+hsum+hgt*cnt/n, w->w(), w->h());
+	  w->redraw();
+	  w->window()->redraw();
+	  cnt++;
+	  hsum += w->h();
+	}
+    }
+    break;
+  //---- make same size
+  case 30: // same width
+    wdt = min;
+    for (o = Fl_Type::first; o; o = o->next)
+      if (o->selected && o->is_widget())
+      {
+	Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	if (w->w()>wdt)
+	  wdt = w->w();
+	BREAK_ON_FIRST;
+      }
+    if (wdt!=min)
+      for (Fl_Type *o = Fl_Type::first; o; o = o->next)
+	if (o->selected && o->is_widget())
+	{
+	  Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	  w->resize( w->x(), w->y(), wdt, w->h());
+	  w->redraw();
+	  w->window()->redraw();
+	}
+    break;
+  case 31: // same height
+    hgt = min;
+    for (o = Fl_Type::first; o; o = o->next)
+      if (o->selected && o->is_widget())
+      {
+	Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	if (w->h()>hgt)
+	  hgt = w->h();
+	BREAK_ON_FIRST;
+      }
+    if (hgt!=min)
+      for (Fl_Type *o = Fl_Type::first; o; o = o->next)
+	if (o->selected && o->is_widget())
+	{
+	  Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	  w->resize( w->x(), w->y(), w->w(), hgt);
+	  w->redraw();
+	  w->window()->redraw();
+	}
+    break;
+  case 32: // same size
+    hgt = min; wdt = min;
+    for (o = Fl_Type::first; o; o = o->next)
+      if (o->selected && o->is_widget())
+      {
+	Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	if (w->w()>wdt)
+	  wdt = w->w();
+	if (w->h()>hgt)
+	  hgt = w->h();
+	BREAK_ON_FIRST;
+      }
+    if (hgt!=min)
+      for (Fl_Type *o = Fl_Type::first; o; o = o->next)
+	if (o->selected && o->is_widget())
+	{
+	  Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	  w->resize( w->x(), w->y(), wdt, hgt);
+	  w->redraw();
+	  w->window()->redraw();
+	}
+    break;
+  //---- center in group
+  case 40: // center hor
+    for (o = Fl_Type::first; o; o = o->next)
+      if (o->selected && o->is_widget() && o->parent)
+      {
+	Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	Fl_Widget *p = ((Fl_Widget_Type *)o->parent)->o;
+	int center2 = 2*p->x()+p->w();
+	w->resize((center2-w->w())/2, w->y(), w->w(), w->h());
+	w->redraw();
+	w->window()->redraw();
+      }
+    break;
+  case 41: // center vert
+    for (o = Fl_Type::first; o; o = o->next)
+      if (o->selected && o->is_widget() && o->parent)
+      {
+	Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
+	Fl_Widget *p = ((Fl_Widget_Type *)o->parent)->o;
+	int center2 = 2*p->y()+p->h();
+	w->resize(w->x(), (center2-w->h())/2, w->w(), w->h());
+	w->redraw();
+	w->window()->redraw();
+      }
+    break;
+  }
+}