d168950719
the spinner. Set the input field to floating point mode for non-integer steps. Use %g as the default format. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@5555 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
225 lines
6.1 KiB
C++
225 lines
6.1 KiB
C++
//
|
|
// "$Id$"
|
|
//
|
|
// Spinner widget for the Fast Light Tool Kit (FLTK).
|
|
//
|
|
// Copyright 1998-2006 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 on the following page:
|
|
//
|
|
// http://www.fltk.org/str.php
|
|
//
|
|
|
|
#ifndef Fl_Spinner_H
|
|
# define Fl_Spinner_H
|
|
|
|
//
|
|
// Include necessary headers...
|
|
//
|
|
|
|
# include <FL/Enumerations.H>
|
|
# include <FL/Fl_Group.H>
|
|
# include <FL/Fl_Input.H>
|
|
# include <FL/Fl_Repeat_Button.H>
|
|
# include <stdio.h>
|
|
# include <stdlib.h>
|
|
|
|
|
|
//
|
|
// Fl_Spinner widget class...
|
|
//
|
|
|
|
class Fl_Spinner : public Fl_Group
|
|
{
|
|
double value_; // Current value
|
|
double minimum_; // Minimum value
|
|
double maximum_; // Maximum value
|
|
double step_; // Amount to add/subtract for up/down
|
|
const char *format_; // Format string
|
|
|
|
Fl_Input input_; // Input field for the value
|
|
Fl_Repeat_Button
|
|
up_button_, // Up button
|
|
down_button_; // Down button
|
|
|
|
|
|
static void sb_cb(Fl_Widget *w, Fl_Spinner *sb) {
|
|
double v; // New value
|
|
|
|
if (w == &(sb->input_)) {
|
|
// Something changed in the input field...
|
|
v = atof(sb->input_.value());
|
|
|
|
if (v < sb->minimum_) {
|
|
sb->value_ = sb->minimum_;
|
|
sb->update();
|
|
} else if (v > sb->maximum_) {
|
|
sb->value_ = sb->maximum_;
|
|
sb->update();
|
|
} else sb->value_ = v;
|
|
} else if (w == &(sb->up_button_)) {
|
|
// Up button pressed...
|
|
v = sb->value_ + sb->step_;
|
|
|
|
if (v > sb->maximum_) sb->value_ = sb->minimum_;
|
|
else sb->value_ = v;
|
|
|
|
sb->update();
|
|
} else if (w == &(sb->down_button_)) {
|
|
// Down button pressed...
|
|
v = sb->value_ - sb->step_;
|
|
|
|
if (v < sb->minimum_) sb->value_ = sb->maximum_;
|
|
else sb->value_ = v;
|
|
|
|
sb->update();
|
|
}
|
|
|
|
sb->do_callback();
|
|
}
|
|
void update() {
|
|
char s[255]; // Value string
|
|
|
|
if (format_[0]=='%'&&format_[1]=='.'&&format_[2]=='*') { // precision argument
|
|
// this code block is a simplified version of
|
|
// Fl_Valuator::format() and works well (but looks ugly)
|
|
int c = 0;
|
|
char temp[64], *sp = temp;
|
|
sprintf(temp, "%.12f", step_);
|
|
while (*sp) sp++;
|
|
sp--;
|
|
while (sp>temp && *sp=='0') sp--;
|
|
while (sp>temp && (*sp>='0' && *sp<='9')) { sp--; c++; }
|
|
sprintf(s, format_, c, value_);
|
|
} else {
|
|
sprintf(s, format_, value_);
|
|
}
|
|
input_.value(s);
|
|
}
|
|
|
|
public:
|
|
|
|
Fl_Spinner(int X, int Y, int W, int H, const char *L = 0)
|
|
: Fl_Group(X, Y, W, H, L),
|
|
input_(X, Y, W - H / 2 - 2, H),
|
|
up_button_(X + W - H / 2 - 2, Y, H / 2 + 2, H / 2, "@-42<"),
|
|
down_button_(X + W - H / 2 - 2, Y + H - H / 2,
|
|
H / 2 + 2, H / 2, "@-42>") {
|
|
end();
|
|
|
|
value_ = 1.0;
|
|
minimum_ = 1.0;
|
|
maximum_ = 100.0;
|
|
step_ = 1.0;
|
|
format_ = "%g";
|
|
|
|
align(FL_ALIGN_LEFT);
|
|
|
|
input_.value("1");
|
|
input_.type(FL_INT_INPUT);
|
|
input_.when(FL_WHEN_ENTER_KEY | FL_WHEN_RELEASE);
|
|
input_.callback((Fl_Callback *)sb_cb, this);
|
|
|
|
up_button_.callback((Fl_Callback *)sb_cb, this);
|
|
|
|
down_button_.callback((Fl_Callback *)sb_cb, this);
|
|
}
|
|
|
|
const char *format() { return (format_); }
|
|
void format(const char *f) { format_ = f; update(); }
|
|
|
|
int handle(int event) {
|
|
switch (event) {
|
|
case FL_KEYDOWN :
|
|
case FL_SHORTCUT :
|
|
if (Fl::event_key() == FL_Up) {
|
|
up_button_.do_callback();
|
|
return 1;
|
|
} else if (Fl::event_key() == FL_Down) {
|
|
down_button_.do_callback();
|
|
return 1;
|
|
} else return 0;
|
|
|
|
case FL_FOCUS :
|
|
if (input_.take_focus()) return 1;
|
|
else return 0;
|
|
}
|
|
|
|
return Fl_Group::handle(event);
|
|
}
|
|
|
|
// Speling mistaks retained for source compatibility...
|
|
double maxinum() const { return (maximum_); }
|
|
double maximum() const { return (maximum_); }
|
|
void maximum(double m) { maximum_ = m; }
|
|
double mininum() const { return (minimum_); }
|
|
double minimum() const { return (minimum_); }
|
|
void minimum(double m) { minimum_ = m; }
|
|
void range(double a, double b) { minimum_ = a; maximum_ = b; }
|
|
void resize(int X, int Y, int W, int H) {
|
|
Fl_Group::resize(X,Y,W,H);
|
|
|
|
input_.resize(X, Y, W - H / 2 - 2, H);
|
|
up_button_.resize(X + W - H / 2 - 2, Y, H / 2 + 2, H / 2);
|
|
down_button_.resize(X + W - H / 2 - 2, Y + H - H / 2,
|
|
H / 2 + 2, H / 2);
|
|
}
|
|
double step() const { return (step_); }
|
|
void step(double s) {
|
|
step_ = s;
|
|
if (step_ != (int)step_) input_.type(FL_FLOAT_INPUT);
|
|
else input_.type(FL_INT_INPUT);
|
|
update();
|
|
}
|
|
Fl_Color textcolor() const {
|
|
return (input_.textcolor());
|
|
}
|
|
void textcolor(Fl_Color c) {
|
|
input_.textcolor(c);
|
|
}
|
|
uchar textfont() const {
|
|
return (input_.textfont());
|
|
}
|
|
void textfont(uchar f) {
|
|
input_.textfont(f);
|
|
}
|
|
uchar textsize() const {
|
|
return (input_.textsize());
|
|
}
|
|
void textsize(uchar s) {
|
|
input_.textsize(s);
|
|
}
|
|
uchar type() const { return (input_.type()); }
|
|
void type(uchar v) {
|
|
if (v==FL_FLOAT_INPUT) {
|
|
format("%.*f");
|
|
} else {
|
|
format("%.0f");
|
|
}
|
|
input_.type(v);
|
|
}
|
|
double value() const { return (value_); }
|
|
void value(double v) { value_ = v; update(); }
|
|
};
|
|
|
|
#endif // !Fl_Spinner_H
|
|
|
|
//
|
|
// End of "$Id$".
|
|
//
|