f09e17c3c5
- remove obsolete svn '$Id$' tags from all source files - update .fl files and generated files accordingly - replace 'http://www.fltk.org' URL's with 'https://...' - replace bug report URL 'str.php' with 'bugs.php' - remove trailing whitespace - fix other whitespace errors flagged by Git - add and/or fix missing or wrong standard headers - convert tabs to spaces in all source files The only relevant code changes are in the fluid/ folder where some .fl files and other source files were used to generate the '$Id' headers and footers.
135 lines
3.7 KiB
C++
135 lines
3.7 KiB
C++
//
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// Value input widget for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2010 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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// FLTK widget for drag-adjusting a floating point value.
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// Warning: this works by making a child Fl_Input object, even
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// though this object is *not* an Fl_Group. May be a kludge?
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#include <FL/Fl.H>
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#include <FL/Fl_Value_Input.H>
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#include <FL/Fl_Group.H>
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#include <stdlib.h>
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#include <FL/math.h>
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void Fl_Value_Input::input_cb(Fl_Widget*, void* v) {
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Fl_Value_Input& t = *(Fl_Value_Input*)v;
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double nv;
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if ((t.step() - floor(t.step()))>0.0 || t.step() == 0.0) nv = strtod(t.input.value(), 0);
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else nv = strtol(t.input.value(), 0, 0);
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if (nv != t.value() || t.when() & FL_WHEN_NOT_CHANGED) {
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t.set_value(nv);
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t.set_changed();
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if (t.when()) t.do_callback();
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}
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}
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void Fl_Value_Input::draw() {
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if (damage()&~FL_DAMAGE_CHILD) input.clear_damage(FL_DAMAGE_ALL);
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input.box(box());
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input.color(color(), selection_color());
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Fl_Widget *i = &input; i->draw(); // calls protected input.draw()
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input.clear_damage();
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}
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void Fl_Value_Input::resize(int X, int Y, int W, int H) {
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Fl_Valuator::resize(X, Y, W, H);
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input.resize(X, Y, W, H);
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}
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void Fl_Value_Input::value_damage() {
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char buf[128];
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format(buf);
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input.value(buf);
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input.mark(input.position()); // turn off selection highlight
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}
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int Fl_Value_Input::handle(int event) {
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double v;
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int delta;
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int mx = Fl::event_x_root();
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static int ix, drag;
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input.when(when());
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switch (event) {
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case FL_PUSH:
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if (!step()) goto DEFAULT;
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ix = mx;
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drag = Fl::event_button();
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handle_push();
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return 1;
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case FL_DRAG:
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if (!step()) goto DEFAULT;
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delta = mx-ix;
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if (delta > 5) delta -= 5;
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else if (delta < -5) delta += 5;
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else delta = 0;
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switch (drag) {
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case 3: v = increment(previous_value(), delta*100); break;
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case 2: v = increment(previous_value(), delta*10); break;
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default:v = increment(previous_value(), delta); break;
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}
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v = round(v);
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handle_drag(soft()?softclamp(v):clamp(v));;
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return 1;
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case FL_RELEASE:
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if (!step()) goto DEFAULT;
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if (value() != previous_value() || !Fl::event_is_click())
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handle_release();
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else {
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Fl_Widget_Tracker wp(&input);
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input.handle(FL_PUSH);
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if (wp.exists())
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input.handle(FL_RELEASE);
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}
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return 1;
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case FL_FOCUS:
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return input.take_focus();
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case FL_SHORTCUT:
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return input.handle(event);
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default:
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DEFAULT:
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input.type(((step() - floor(step()))>0.0 || step() == 0.0) ? FL_FLOAT_INPUT : FL_INT_INPUT);
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return input.handle(event);
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}
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}
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/**
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Creates a new Fl_Value_Input widget using the given
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position, size, and label string. The default boxtype is
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FL_DOWN_BOX.
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*/
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Fl_Value_Input::Fl_Value_Input(int X, int Y, int W, int H, const char* l)
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: Fl_Valuator(X, Y, W, H, l), input(X, Y, W, H, 0) {
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soft_ = 0;
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if (input.parent()) // defeat automatic-add
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input.parent()->remove(input);
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input.parent((Fl_Group *)this); // kludge!
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input.callback(input_cb, this);
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input.when(FL_WHEN_CHANGED);
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box(input.box());
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color(input.color());
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selection_color(input.selection_color());
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align(FL_ALIGN_LEFT);
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value_damage();
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set_flag(SHORTCUT_LABEL);
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}
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Fl_Value_Input::~Fl_Value_Input() {
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if (input.parent() == (Fl_Group *)this)
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input.parent(0); // *revert* ctor kludge!
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}
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