fltk/fluid/Shortcut_Button.h

100 lines
2.9 KiB
C++

//
// Shortcut header file for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2010 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
// https://www.fltk.org/bugs.php
//
#ifndef _FLUID_SHORTCUT_BUTTON_H
#define _FLUID_SHORTCUT_BUTTON_H
#include <FL/Fl_Button.H>
#include <FL/Fl_Input.H>
// Button will catch and display keyboard shortcuts when activated.
class Shortcut_Button : public Fl_Button {
public:
int svalue;
int handle(int) FL_OVERRIDE;
void draw() FL_OVERRIDE;
Shortcut_Button(int X,int Y,int W,int H, const char* l = 0) :
Fl_Button(X,Y,W,H,l) {svalue = 0;}
};
// Adding drag and drop for dragging widgets into windows.
class Widget_Bin_Button : public Fl_Button {
public:
int handle(int) FL_OVERRIDE;
Widget_Bin_Button(int X,int Y,int W,int H, const char* l = 0) :
Fl_Button(X,Y,W,H,l) { }
};
// Adding drag and drop functionality to drag window prototypes onto the desktop.
class Widget_Bin_Window_Button : public Fl_Button {
public:
int handle(int) FL_OVERRIDE;
Widget_Bin_Window_Button(int X,int Y,int W,int H, const char* l = 0) :
Fl_Button(X,Y,W,H,l) { }
};
// Callback signature for function returning the value of a variable.
typedef int (Fluid_Coord_Callback)(class Fluid_Coord_Input const *, void*);
// Entry for a list of variables available to an input field.
// Fluid_Coord_Input::variables() expects an array of Fluid_Coord_Input_Vars
// with the last entry's name_ set to NULL.
typedef struct Fluid_Coord_Input_Vars {
const char *name_;
Fluid_Coord_Callback *callback_;
} Fluid_Coord_Input_Vars;
// A text input widget that understands simple math.
class Fluid_Coord_Input : public Fl_Input
{
Fl_Callback *user_callback_;
Fluid_Coord_Input_Vars *vars_;
void *vars_user_data_;
static void callback_handler_cb(Fluid_Coord_Input *This, void *v);
void callback_handler(void *v);
int eval_var(uchar *&s) const;
int eval(uchar *&s, int prio) const;
int eval(const char *s) const;
public:
Fluid_Coord_Input(int x, int y, int w, int h, const char *l=0L);
/** Return the text in the widget text field. */
const char *text() const { return Fl_Input::value(); }
/** Set the text in the text field */
void text(const char *v) { Fl_Input::value(v); }
int value() const;
void value(int v);
/** Set the general callback for this widget. */
void callback(Fl_Callback *cb) {
user_callback_ = cb;
}
/** Set the list of the available variables
\param vars array of variables, last entry `has name_` set to `NULL`
\param user_data is forwarded to the Variable callback */
void variables(Fluid_Coord_Input_Vars *vars, void *user_data) {
vars_ = vars;
vars_user_data_ = user_data;
}
};
#endif