non/FL/Fl_Value_SliderX.C

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2012-03-03 03:02:23 +01:00
/*******************************************************************************/
/* Copyright (C) 2012 Jonathan Moore Liles */
/* */
/* This program is free software; you can redistribute it and/or modify it */
/* under the terms of the GNU General Public License as published by the */
/* Free Software Foundation; either version 2 of the License, or (at your */
/* option) any later version. */
/* */
/* This program 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 General Public License for */
/* more details. */
/* */
/* You should have received a copy of the GNU General Public License along */
/* with This program; see the file COPYING. If not,write to the Free Software */
/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/*******************************************************************************/
#include "Fl_Value_SliderX.H"
#include <FL/Fl.H>
#include <FL/fl_draw.H>
#include <math.h>
void Fl_Value_SliderX::input_cb(Fl_Widget*, void* v) {
Fl_Value_SliderX& t = *(Fl_Value_SliderX*)v;
double nv;
if ((t.step() - floor(t.step()))>0.0 || t.step() == 0.0)
nv = strtod(t.input.value(), 0);
else
nv = strtol(t.input.value(), 0, 0);
if (nv != t.value() || t.when() & FL_WHEN_NOT_CHANGED) {
if ( ! t.soft())
nv = t.clamp(nv);
t.set_value(nv);
t.set_changed();
if (t.when())
{
t.value_damage();
t.do_callback();
}
}
}
void Fl_Value_SliderX::value_damage() {
char buf[128];
format(buf);
input.value(buf);
input.mark(input.position()); // turn off selection highlight
redraw();
}
Fl_Value_SliderX::~Fl_Value_SliderX ( void )
{
if (input.parent() == (Fl_Group *)this)
input.parent(0); // *revert* ctor kludge!
}
/**
Creates a new Fl_Value_SliderX widget using the given
position, size, and label string. The default boxtype is FL_DOWN_BOX.
*/
Fl_Value_SliderX::Fl_Value_SliderX(int X, int Y, int W, int H, const char*l)
: Fl_SliderX(X,Y,W,H,l),input(X, Y, W, H, 0) {
step(1,100);
soft_ = 0;
if (input.parent()) // defeat automatic-add
input.parent()->remove(input);
input.parent((Fl_Group *)this); // kludge!
input.callback(input_cb, this);
input.when(FL_WHEN_ENTER_KEY);
align(FL_ALIGN_LEFT);
value_damage();
textsize(9);
set_flag(SHORTCUT_LABEL);
}
void Fl_Value_SliderX::draw() {
int sxx = x(), syy = y(), sww = w(), shh = h();
int bxx = x(), byy = y(), bww = w(), bhh = h();
if (horizontal()) {
input.resize(x(), y(), 35, h());
bww = 35; sxx += 35; sww -= 35;
} else {
input.resize(x(), y(), w(), 25 );
syy += 25; bhh = 25; shh -= 25;
}
if (damage()&FL_DAMAGE_ALL) draw_box(box(),sxx,syy,sww,shh,color());
Fl_SliderX::draw(sxx+Fl::box_dx(box()),
syy+Fl::box_dy(box()),
sww-Fl::box_dw(box()),
shh-Fl::box_dh(box()));
draw_box(box(),bxx,byy,bww,bhh,color());
if (damage()&~FL_DAMAGE_CHILD) input.clear_damage(FL_DAMAGE_ALL);
input.box(box());
input.color(color(), selection_color());
Fl_Widget *i = &input; i->draw(); // calls protected input.draw()
input.clear_damage();
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}
int Fl_Value_SliderX::handle(int event) {
if (event == FL_PUSH && Fl::visible_focus()) {
Fl::focus(this);
redraw();
}
int sxx = x(), syy = y(), sww = w(), shh = h();
if (horizontal()) {
sxx += 35; sww -= 35;
} else {
syy += 25; shh -= 25;
}
double v;
int delta;
int mx = Fl::event_x_root();
static int ix, drag;
// input.when(when());
switch (event) {
case FL_ENTER:
return 1;
case FL_LEAVE:
if ( ! drag )
fl_cursor( FL_CURSOR_DEFAULT );
return 1;
case FL_MOVE:
if ( drag || Fl::event_inside( &input ) )
fl_cursor( FL_CURSOR_WE );
else
fl_cursor( FL_CURSOR_DEFAULT );
return 1;
case FL_PUSH:
// if (!step()) goto DEFAULT;
if ( Fl::event_inside(&input) )
{
input.handle(event);
ix = mx;
drag = Fl::event_button();
handle_push();
return 1;
}
goto DEFAULT;
break;
case FL_DRAG:
{
if ( ! drag )
goto DEFAULT;
fl_cursor( FL_CURSOR_WE );
// if (!step()) goto DEFAULT;
delta = mx-ix;
if (!horizontal())
delta = -delta;
if (delta > 5) delta -= 5;
else if (delta < -5) delta += 5;
else delta = 0;
float S = fabs( maximum() - minimum() );
switch (drag) {
case 3: v = previous_value() + ( S * delta * 0.0100f); break;
case 2: v = previous_value() + ( S * delta * 0.0010f); break;
default:v = previous_value() + ( S * delta * 0.0005f); break;
}
v = round(v);
v = soft()?softclamp(v):clamp(v);
handle_drag(v);
value_damage();
return 1;
}
case FL_RELEASE:
if ( ! drag )
goto DEFAULT;
// if (!step()) goto DEFAULT;
if (value() != previous_value() || !Fl::event_is_click())
handle_release();
drag = 0;
fl_cursor( FL_CURSOR_DEFAULT );
/* else { */
/* Fl_Widget_Tracker wp(&input); */
/* input.handle(FL_PUSH); */
/* if (wp.exists()) */
/* input.handle(FL_RELEASE); */
/* } */
return 1;
case FL_FOCUS:
return input.take_focus();
case FL_UNFOCUS:
{
input_cb(&input,this);
return 1;
}
case FL_PASTE:
return 0;
case FL_SHORTCUT:
return input.handle(event);
}
DEFAULT:
int r = Fl_SliderX::handle(event,
sxx+Fl::box_dx(box()),
syy+Fl::box_dy(box()),
sww-Fl::box_dw(box()),
shh-Fl::box_dh(box()));
if ( r )
{
return r;
}
else
{
input.type(((step() - floor(step()))>0.0 || step() == 0.0) ? FL_FLOAT_INPUT : FL_INT_INPUT);
return input.handle(event);
}
}