?? fl_value_output.cxx
字號:
//// "$Id: Fl_Value_Output.cxx,v 1.1.1.1 2003/08/07 21:18:40 jasonk Exp $"//// Value output widget for the Fast Light Tool Kit (FLTK).//// Copyright 1998-1999 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 to "fltk-bugs@easysw.com".//// 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() : inactive(textcolor())); fl_font(textfont(), textsize()); fl_draw(buf,X+3,Y,W-6,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; default: return 0; }}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_BLACK; soft_ = 0;}//// End of "$Id: Fl_Value_Output.cxx,v 1.1.1.1 2003/08/07 21:18:40 jasonk Exp $".//
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -