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Diffstat (limited to 'FL/Fl_Spinner.H')
| -rw-r--r-- | FL/Fl_Spinner.H | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/FL/Fl_Spinner.H b/FL/Fl_Spinner.H new file mode 100644 index 000000000..a3ce031f8 --- /dev/null +++ b/FL/Fl_Spinner.H @@ -0,0 +1,170 @@ +// +// "$Id$" +// +// Spinner widget for the Fast Light Tool Kit (FLTK). +// +// Copyright 1998-2005 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/Fl_Group.H> +# include <FL/Fl_Input.H> +# include <FL/Fl_Repeat_Button.H> +# include <stdlib.h> + + +// +// Fl_Spinner widget class... +// + +class Fl_Spinner : public Fl_Group +{ + int value_; // Current value + int minimum_; // Minimum value + int maximum_; // Maximum value + int 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) { + int v; // New value + + if (w == &(sb->input_)) { + // Something changed in the input field... + v = atoi(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 + + 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, "@-22<"), + down_button_(X + W - H / 2 - 2, Y + H - H / 2, + H / 2 + 2, H / 2, "@-22>") { + end(); + + value_ = 1; + minimum_ = 1; + maximum_ = 100; + step_ = 1; + format_ = "%d"; + + align(FL_ALIGN_LEFT); + + input_.value("1"); + input_.type(FL_INT_INPUT); + input_.when(FL_WHEN_CHANGED); + 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 maxinum() const { return (maximum_); } + void maximum(int m) { maximum_ = m; } + int mininum() const { return (minimum_); } + void minimum(int m) { minimum_ = m; } + void range(int a, int 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); + } + int step() const { return (step_); } + void step(int s) { step_ = s; } + 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); + } + int value() const { return (value_); } + void value(int v) { value_ = v; update(); } +}; + +#endif // !Fl_Spinner_H + +// +// End of "$Id$". +// |