Author: yuri Date: 2009-04-24 02:32:18 -0700 (Fri, 24 Apr 2009) New Revision: 6780 Log: add rotated text example
Added: branches/branch-1.3/test/rotated_text.cxx Added: branches/branch-1.3/test/rotated_text.cxx =================================================================== --- branches/branch-1.3/test/rotated_text.cxx (rev 0) +++ branches/branch-1.3/test/rotated_text.cxx 2009-04-24 09:32:18 UTC (rev 6780) @@ -0,0 +1,228 @@ +// +// "$Id: label.cxx 6626 2009-01-12 14:52:45Z fabien $" +// +// Label test program for the Fast Light Tool Kit (FLTK). +// +// Copyright 1998-2009 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 +// + +#include <FL/Fl.H> +#include <FL/Fl_Double_Window.H> +#include <FL/Fl_Box.H> +#include <FL/Fl_Hor_Value_Slider.H> +#include <FL/Fl_Toggle_Button.H> +#include <FL/Fl_Input.H> +#include <FL/Fl_Choice.H> +#include <FL/fl_draw.H> + +#include <math.h> +#ifndef M_PI +#define M_PI 3.141592654 +#endif + +Fl_Toggle_Button *leftb,*rightb,*clipb; +//Fl_Box *text; +Fl_Input *input; +Fl_Hor_Value_Slider *fonts; +Fl_Hor_Value_Slider *sizes; +Fl_Hor_Value_Slider *angles; +Fl_Double_Window *window; + +//code taken from fl_engraved_label.cxx +class Rotated_Label_Box : public Fl_Widget{ + protected: + void draw(){ + draw_box(); + fl_font(labelfont(), labelsize()); + fl_color(labelcolor()); + int dx(0),dy(0); + + if(rt_align&FL_ALIGN_CLIP)fl_push_clip(x(),y(),w(),h()); + else fl_push_no_clip(); + fl_measure(rt_text,dx,dy); + if(rt_align&FL_ALIGN_LEFT){ + dx=dy=0; + }else if(rt_align&FL_ALIGN_RIGHT){ + dy=-sin(M_PI*(double)(rt_angle+180)/180.)*(double)dx; + dx=cos(M_PI*(double)(rt_angle+180)/180.)*(double)dx; + }else{ + dy=sin(M_PI*(double)rt_angle/180.)*(double)dx; + dx=-cos(M_PI*(double)rt_angle/180.)*(double)dx; + dx/=2;dy/=2; + } + if(labeltype()==FL_SHADOW_LABEL)shadow_label(x()+w()/2+dx,y()+h()/2+dy); + else if(labeltype()==FL_ENGRAVED_LABEL)engraved_label(x()+w()/2+dx,y()+h()/2+dy); + else if(labeltype()==FL_EMBOSSED_LABEL)embossed_label(x()+w()/2+dx,y()+h()/2+dy); + else{ + fl_draw(rt_angle,rt_text,x()+w()/2+dx,y()+h()/2+dy); + } + fl_pop_clip(); + draw_label(); + } + void innards(int X, int Y, int data[][3], int n){ + for (int i = 0; i < n; i++) { + fl_color((Fl_Color)(i < n-1 ? data[i][2] : labelcolor())); + fl_draw(rt_angle,rt_text, X+data[i][0], Y+data[i][1]); + } + } + + void shadow_label(int X, int Y){ + static int data[2][3] = {{2,2,FL_DARK3},{0,0,0}}; + innards(X, Y, data, 2); + } + + void engraved_label(int X, int Y){ + static int data[7][3] = { + {1,0,FL_LIGHT3},{1,1,FL_LIGHT3},{0,1,FL_LIGHT3}, + {-1,0,FL_DARK3},{-1,-1,FL_DARK3},{0,-1,FL_DARK3}, + {0,0,0}}; + innards(X, Y, data, 7); + } + + void embossed_label(int X, int Y){ + static int data[7][3] = { + {-1,0,FL_LIGHT3},{-1,-1,FL_LIGHT3},{0,-1,FL_LIGHT3}, + {1,0,FL_DARK3},{1,1,FL_DARK3},{0,1,FL_DARK3}, + {0,0,0}}; + innards(X, Y, data, 7); + } + + public: + Rotated_Label_Box(int X, int Y, int W, int H, const char*L=0): + Fl_Widget(X,Y,W,H,L),rt_angle(0),rt_align((Fl_Align)0){ + rt_text=input->value(); + }; + int rt_angle; + const char* rt_text; + Fl_Align rt_align; +}*text; + + +void button_cb(Fl_Widget *,void *) { + int i = 0; + if (leftb->value()) i |= FL_ALIGN_LEFT; + if (rightb->value()) i |= FL_ALIGN_RIGHT; + if (clipb->value()) i |= FL_ALIGN_CLIP; + text->rt_align=(Fl_Align)i; + window->redraw(); +} + +void font_cb(Fl_Widget *,void *) { + text->labelfont(int(fonts->value())); + window->redraw(); +} + +void size_cb(Fl_Widget *,void *) { + text->labelsize(int(sizes->value())); + window->redraw(); +} +void angle_cb(Fl_Widget *,void *) { + text->rt_angle=angles->value(); + window->redraw(); +} + +void input_cb(Fl_Widget *,void *) { + text->rt_text=input->value(); + window->redraw(); +} + +void normal_cb(Fl_Widget *,void *) { + text->labeltype(FL_NORMAL_LABEL); + window->redraw(); +} + +void shadow_cb(Fl_Widget *,void *) { + text->labeltype(FL_SHADOW_LABEL); + window->redraw(); +} + +void embossed_cb(Fl_Widget *,void *) { + text->labeltype(FL_EMBOSSED_LABEL); + window->redraw(); +} + +void engraved_cb(Fl_Widget *,void *) { + text->labeltype(FL_ENGRAVED_LABEL); + window->redraw(); +} + +Fl_Menu_Item choices[] = { + {"FL_NORMAL_LABEL",0,normal_cb}, + {"FL_SHADOW_LABEL",0,shadow_cb}, + {"FL_ENGRAVED_LABEL",0,engraved_cb}, + {"FL_EMBOSSED_LABEL",0,embossed_cb}, + {0}}; + +int main(int argc, char **argv) { + window = new Fl_Double_Window(400,425); + + angles= new Fl_Hor_Value_Slider(50,400,350,25,"Angle:"); + angles->align(FL_ALIGN_LEFT); + angles->bounds(-360,360); + angles->step(1); + angles->value(0); + angles->callback(angle_cb); + + input = new Fl_Input(50,375,350,25); + input->static_value("Rotate Me!!!"); + input->when(FL_WHEN_CHANGED); + input->callback(input_cb); + + sizes= new Fl_Hor_Value_Slider(50,350,350,25,"Size:"); + sizes->align(FL_ALIGN_LEFT); + sizes->bounds(1,64); + sizes->step(1); + sizes->value(14); + sizes->callback(size_cb); + + fonts=new Fl_Hor_Value_Slider(50,325,350,25,"Font:"); + fonts->align(FL_ALIGN_LEFT); + fonts->bounds(0,15); + fonts->step(1); + fonts->value(0); + fonts->callback(font_cb); + + Fl_Group *g = new Fl_Group(50,300,350,25); + leftb = new Fl_Toggle_Button(50,300,50,25,"left"); + leftb->callback(button_cb); + rightb = new Fl_Toggle_Button(100,300,50,25,"right"); + rightb->callback(button_cb); + clipb = new Fl_Toggle_Button(350,300,50,25,"clip"); + clipb->callback(button_cb); + g->resizable(rightb); + g->end(); + + Fl_Choice *c = new Fl_Choice(50,275,200,25); + c->menu(choices); + + text= new Rotated_Label_Box(100,75,200,100,"Widget with rotated text"); + text->box(FL_FRAME_BOX); + text->align(FL_ALIGN_BOTTOM); + window->resizable(text); + window->end(); + window->show(argc,argv); + return Fl::run(); +} + +// +// End of "$Id: label.cxx 6626 2009-01-12 14:52:45Z fabien $". +// _______________________________________________ fltk-commit mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk-commit
