ref: 73b99b6d78ee97781af3734d96bb7a24c9e85d8e
dir: /DoConfig/fltk/src/Fl_Value_Output.cxx/
// // "$Id$" // // Value output widget 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: // // http://www.fltk.org/COPYING.php // // Please report all bugs and problems on the following page: // // http://www.fltk.org/str.php // // Fltk widget for drag-adjusting a floating point value. // This is much lighter than Fl_Value_Input because it has no text editor // If step() is zero then it can be used to display a floating-point value #include <FL/Fl.H> #include <FL/Fl_Value_Output.H> #include <FL/fl_draw.H> void Fl_Value_Output::draw() { Fl_Boxtype b = box() ? box() : FL_DOWN_BOX; int X = x()+Fl::box_dx(b); int Y = y()+Fl::box_dy(b); int W = w()-Fl::box_dw(b); int H = h()-Fl::box_dh(b); if (damage()&~FL_DAMAGE_CHILD) draw_box(b, color()); else { fl_color(color()); fl_rectf(X, Y, W, H); } char buf[128]; format(buf); fl_color(active_r() ? textcolor() : fl_inactive(textcolor())); fl_font(textfont(), textsize()); fl_draw(buf,X,Y,W,H,FL_ALIGN_LEFT); } int Fl_Value_Output::handle(int event) { if (!step()) return 0; double v; int delta; int mx = Fl::event_x(); static int ix, drag; switch (event) { case FL_PUSH: ix = mx; drag = Fl::event_button(); handle_push(); return 1; case FL_DRAG: delta = Fl::event_x()-ix; if (delta > 5) delta -= 5; else if (delta < -5) delta += 5; else delta = 0; switch (drag) { case 3: v = increment(previous_value(),delta*100); break; case 2: v = increment(previous_value(),delta*10); break; default:v = increment(previous_value(),delta); break; } v = round(v); handle_drag(soft()?softclamp(v):clamp(v));; return 1; case FL_RELEASE: handle_release(); return 1; case FL_ENTER : case FL_LEAVE : return 1; default: return 0; } } /** Creates a new Fl_Value_Output widget using the given position, size, and label string. The default boxtype is FL_NO_BOX. <P> Inherited destructor destroys the Valuator. */ Fl_Value_Output::Fl_Value_Output(int X, int Y, int W, int H,const char *l) : Fl_Valuator(X,Y,W,H,l) { box(FL_NO_BOX); align(FL_ALIGN_LEFT); textfont_ = FL_HELVETICA; textsize_ = FL_NORMAL_SIZE; textcolor_ = FL_FOREGROUND_COLOR; soft_ = 0; } // // End of "$Id$". //