480 lines
15 KiB
C++
480 lines
15 KiB
C++
//
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// Alignment code for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2023 by Bill Spitzak and others.
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//
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// This library is free software. Distribution and use rights are outlined in
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// the file "COPYING" which should have been included with this file. If this
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// file is missing or damaged, see the license at:
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//
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// https://www.fltk.org/COPYING.php
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//
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// Please see the following page on how to report bugs and issues:
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//
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// https://www.fltk.org/bugs.php
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//
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#include "align_widget.h"
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#include "fluid.h"
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#include "Fl_Group_Type.h"
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#include "undo.h"
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#include <FL/Fl.H>
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#include <FL/Fl_Window.H>
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/**
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the first behavior always uses the first selected widget as a reference
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the second behavior uses the largest widget (most extreme positions) as
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a reference.
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*/
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#define BREAK_ON_FIRST break
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//#define BREAK_ON_FIRST
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void align_widget_cb(Fl_Widget*, long how)
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{
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const int max = 32768, min = -32768;
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int left, right, top, bot, wdt, hgt, n;
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Fl_Type *o;
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int changed = 0;
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switch ( how )
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{
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//---- align
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case 10: // align left
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left = max;
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for (o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (w->x()<left)
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left = w->x();
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BREAK_ON_FIRST;
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}
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if (left!=max)
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for (Fl_Type *o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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if (!changed) {
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changed = 1;
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undo_checkpoint();
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}
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (o->next && o->next->level > o->level && !o->next->selected &&
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!o->is_a(ID_Menu_Manager_)) {
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// When resizing a group, make sure we also move the children...
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((igroup *)w)->full_resize(left, w->y(), w->w(), w->h());
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} else {
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// Otherwise, just do the widget...
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w->resize(left, w->y(), w->w(), w->h());
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}
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w->redraw();
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if (w->window()) w->window()->redraw();
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}
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break;
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case 11: // align h.center
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left = max; right = min;
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for (o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (w->x()<left)
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left = w->x();
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if (w->x()+w->w()>right)
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right = w->x()+w->w();
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BREAK_ON_FIRST;
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}
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if (left!=max)
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{
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int center2 = left+right;
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for (Fl_Type *o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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if (!changed) {
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changed = 1;
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undo_checkpoint();
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}
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (o->next && o->next->level > o->level && !o->next->selected &&
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!o->is_a(ID_Menu_Manager_)) {
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// When resizing a group, make sure we also move the children...
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((igroup *)w)->full_resize((center2-w->w())/2, w->y(), w->w(), w->h());
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} else {
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// Otherwise, just do the widget...
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w->resize((center2-w->w())/2, w->y(), w->w(), w->h());
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}
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w->redraw();
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if (w->window()) w->window()->redraw();
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}
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}
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break;
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case 12: // align right
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right = min;
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for (o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (w->x()+w->w()>right)
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right = w->x()+w->w();
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BREAK_ON_FIRST;
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}
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if (right!=min)
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for (Fl_Type *o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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if (!changed) {
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changed = 1;
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undo_checkpoint();
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}
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (o->next && o->next->level > o->level && !o->next->selected &&
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!o->is_a(ID_Menu_Manager_)) {
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// When resizing a group, make sure we also move the children...
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((igroup *)w)->full_resize(right-w->w(), w->y(), w->w(), w->h());
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} else {
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// Otherwise, just do the widget...
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w->resize(right-w->w(), w->y(), w->w(), w->h());
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}
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w->redraw();
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if (w->window()) w->window()->redraw();
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}
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break;
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case 13: // align top
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top = max;
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for (o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (w->y()<top)
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top = w->y();
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BREAK_ON_FIRST;
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}
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if (top!=max)
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for (Fl_Type *o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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if (!changed) {
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changed = 1;
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undo_checkpoint();
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}
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (o->next && o->next->level > o->level && !o->next->selected &&
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!o->is_a(ID_Menu_Manager_)) {
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// When resizing a group, make sure we also move the children...
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((igroup *)w)->full_resize(w->x(), top, w->w(), w->h());
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} else {
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// Otherwise, just do the widget...
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w->resize(w->x(), top, w->w(), w->h());
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}
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w->redraw();
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if (w->window()) w->window()->redraw();
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}
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break;
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case 14: // align v.center
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top = max; bot = min;
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for (o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (w->y()<top)
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top = w->y();
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if (w->y()+w->h()>bot)
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bot = w->y()+w->h();
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BREAK_ON_FIRST;
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}
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if (top!=max)
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{
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int center2 = top+bot;
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for (Fl_Type *o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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if (!changed) {
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changed = 1;
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undo_checkpoint();
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}
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (o->next && o->next->level > o->level && !o->next->selected &&
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!o->is_a(ID_Menu_Manager_)) {
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// When resizing a group, make sure we also move the children...
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((igroup *)w)->full_resize(w->x(), (center2-w->h())/2, w->w(), w->h());
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} else {
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// Otherwise, just do the widget...
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w->resize(w->x(), (center2-w->h())/2, w->w(), w->h());
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}
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w->redraw();
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if (w->window()) w->window()->redraw();
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}
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}
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break;
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case 15: // align bottom
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bot = min;
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for (o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (w->y()+w->h()>bot)
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bot = w->y()+w->h();
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BREAK_ON_FIRST;
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}
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if (bot!=min)
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for (Fl_Type *o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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if (!changed) {
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changed = 1;
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undo_checkpoint();
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}
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (o->next && o->next->level > o->level && !o->next->selected &&
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!o->is_a(ID_Menu_Manager_)) {
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// When resizing a group, make sure we also move the children...
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((igroup *)w)->full_resize( w->x(), bot-w->h(), w->w(), w->h());
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} else {
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// Otherwise, just do the widget...
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w->resize( w->x(), bot-w->h(), w->w(), w->h());
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}
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w->redraw();
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if (w->window()) w->window()->redraw();
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}
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break;
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//---- space evenly
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case 20: // space evenly across
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left = max; right = min; wdt = 0, n = 0;
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for (o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (w->x()<left)
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left = w->x();
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if (w->x()+w->w()>right)
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right = w->x()+w->w();
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wdt += w->w();
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n++;
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}
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wdt = (right-left)-wdt;
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n--;
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if (n>0)
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{
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wdt = wdt/n*n; // make sure that all gaps are the same, possibly moving the rightmost widget
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int cnt = 0, wsum = 0;
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for (Fl_Type *o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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if (!changed) {
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changed = 1;
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undo_checkpoint();
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}
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (o->next && o->next->level > o->level && !o->next->selected &&
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!o->is_a(ID_Menu_Manager_)) {
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// When resizing a group, make sure we also move the children...
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((igroup *)w)->full_resize(left+wsum+wdt*cnt/n, w->y(), w->w(), w->h());
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} else {
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// Otherwise, just do the widget...
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w->resize(left+wsum+wdt*cnt/n, w->y(), w->w(), w->h());
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}
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w->redraw();
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if (w->window()) w->window()->redraw();
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cnt++;
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wsum += w->w();
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}
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}
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break;
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case 21: // space evenly down
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top = max; bot = min; hgt = 0, n = 0;
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for (o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (w->y()<top)
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top = w->y();
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if (w->y()+w->h()>bot)
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bot = w->y()+w->h();
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hgt += w->h();
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n++;
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}
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hgt = (bot-top)-hgt;
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n--;
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if (n>0)
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{
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hgt = hgt/n*n; // make sure that all gaps are the same, possibly moving the rightmost widget
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int cnt = 0, hsum = 0;
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for (Fl_Type *o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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if (!changed) {
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changed = 1;
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undo_checkpoint();
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}
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (o->next && o->next->level > o->level && !o->next->selected &&
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!o->is_a(ID_Menu_Manager_)) {
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// When resizing a group, make sure we also move the children...
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((igroup *)w)->full_resize(w->x(), top+hsum+hgt*cnt/n, w->w(), w->h());
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} else {
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// Otherwise, just do the widget...
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w->resize(w->x(), top+hsum+hgt*cnt/n, w->w(), w->h());
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}
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w->redraw();
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if (w->window()) w->window()->redraw();
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cnt++;
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hsum += w->h();
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}
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}
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break;
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//---- make same size
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case 30: // same width
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wdt = min;
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for (o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (w->w()>wdt)
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wdt = w->w();
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BREAK_ON_FIRST;
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}
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if (wdt!=min)
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for (Fl_Type *o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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if (!changed) {
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changed = 1;
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undo_checkpoint();
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}
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (o->next && o->next->level > o->level && !o->next->selected &&
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!o->is_a(ID_Menu_Manager_)) {
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// When resizing a group, make sure we also move the children...
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((igroup *)w)->full_resize(w->x(), w->y(), wdt, w->h());
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} else {
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// Otherwise, just do the widget...
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w->resize(w->x(), w->y(), wdt, w->h());
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}
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w->redraw();
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if (w->window()) w->window()->redraw();
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}
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break;
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case 31: // same height
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hgt = min;
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for (o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (w->h()>hgt)
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hgt = w->h();
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BREAK_ON_FIRST;
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}
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if (hgt!=min)
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for (Fl_Type *o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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if (!changed) {
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changed = 1;
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undo_checkpoint();
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}
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (o->next && o->next->level > o->level && !o->next->selected &&
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!o->is_a(ID_Menu_Manager_)) {
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// When resizing a group, make sure we also move the children...
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((igroup *)w)->full_resize( w->x(), w->y(), w->w(), hgt);
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} else {
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// Otherwise, just do the widget...
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w->resize( w->x(), w->y(), w->w(), hgt);
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}
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w->redraw();
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if (w->window()) w->window()->redraw();
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}
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break;
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case 32: // same size
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hgt = min; wdt = min;
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for (o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (w->w()>wdt)
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wdt = w->w();
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if (w->h()>hgt)
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hgt = w->h();
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BREAK_ON_FIRST;
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}
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if (hgt!=min)
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for (Fl_Type *o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget())
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{
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if (!changed) {
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changed = 1;
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undo_checkpoint();
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}
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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if (o->next && o->next->level > o->level && !o->next->selected &&
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!o->is_a(ID_Menu_Manager_)) {
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// When resizing a group, make sure we also move the children...
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((igroup *)w)->full_resize( w->x(), w->y(), wdt, hgt);
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} else {
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// Otherwise, just do the widget...
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w->resize( w->x(), w->y(), wdt, hgt);
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}
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w->redraw();
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if (w->window()) w->window()->redraw();
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}
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break;
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//---- center in group
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case 40: // center hor
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for (o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget() && o->parent)
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{
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if (!changed) {
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changed = 1;
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undo_checkpoint();
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}
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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Fl_Widget *p = ((Fl_Widget_Type *)o->parent)->o;
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int center2;
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if (w->window() == p) center2 = p->w();
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else center2 = 2*p->x()+p->w();
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if (o->next && o->next->level > o->level && !o->next->selected &&
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!o->is_a(ID_Menu_Manager_)) {
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// When resizing a group, make sure we also move the children...
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((igroup *)w)->full_resize((center2-w->w())/2, w->y(), w->w(), w->h());
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} else {
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// Otherwise, just do the widget...
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w->resize((center2-w->w())/2, w->y(), w->w(), w->h());
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}
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w->redraw();
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if (w->window()) w->window()->redraw();
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}
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break;
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case 41: // center vert
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for (o = Fl_Type::first; o; o = o->next)
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if (o->selected && o->is_widget() && o->parent)
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{
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if (!changed) {
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changed = 1;
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undo_checkpoint();
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}
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Fl_Widget *w = ((Fl_Widget_Type *)o)->o;
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Fl_Widget *p = ((Fl_Widget_Type *)o->parent)->o;
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int center2;
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if (w->window() == p) center2 = p->h();
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else center2 = 2*p->y()+p->h();
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if (o->next && o->next->level > o->level && !o->next->selected &&
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!o->is_a(ID_Menu_Manager_)) {
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// When resizing a group, make sure we also move the children...
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((igroup *)w)->full_resize(w->x(), (center2-w->h())/2, w->w(), w->h());
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} else {
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// Otherwise, just do the widget...
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w->resize(w->x(), (center2-w->h())/2, w->w(), w->h());
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}
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set_modflag(1);
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w->redraw();
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if (w->window()) w->window()->redraw();
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}
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break;
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}
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|
if (changed)
|
|
set_modflag(1);
|
|
}
|