113 lines
2.9 KiB
C++
113 lines
2.9 KiB
C++
#include <FL/Fl.H>
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#include <FL/Fl_Double_Window.H>
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#include <FL/Fl_Scroll.H>
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#include <FL/Fl_Toggle_Button.H>
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#include <FL/Fl_Choice.H>
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#include <FL/Fl_Box.H>
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#include <string.h>
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#include <stdio.h>
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#include <FL/fl_draw.H>
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#include <FL/math.h>
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class Drawing : public Fl_Widget {
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void draw();
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public:
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Drawing(int X,int Y,int W,int H,const char* L) : Fl_Widget(X,Y,W,H,L) {
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align(FL_ALIGN_TOP);
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box(FL_FLAT_BOX);
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color(FL_WHITE);
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}
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};
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void Drawing::draw() {
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draw_box();
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fl_push_matrix();
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fl_translate(x()+w()/2, y()+h()/2);
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fl_scale(w()/2, h()/2);
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fl_color(FL_BLACK);
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for (int i = 0; i < 20; i++) {
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for (int j = i+1; j < 20; j++) {
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fl_begin_line();
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fl_vertex(cos(M_PI*i/10+.1), sin(M_PI*i/10+.1));
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fl_vertex(cos(M_PI*j/10+.1), sin(M_PI*j/10+.1));
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fl_end_line();
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}
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}
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fl_pop_matrix();
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}
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Fl_Scroll* thescroll;
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void box_cb(Fl_Widget* o, void*) {
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thescroll->box(((Fl_Button*)o)->value() ? FL_DOWN_FRAME : FL_NO_BOX);
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thescroll->redraw();
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}
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void type_cb(Fl_Widget*, void* v) {
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thescroll->type(int(v));
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thescroll->redraw();
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}
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Fl_Menu_Item choices[] = {
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{"0", 0, type_cb, (void*)0},
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{"HORIZONTAL", 0, type_cb, (void*)Fl_Scroll::HORIZONTAL},
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{"VERTICAL", 0, type_cb, (void*)Fl_Scroll::VERTICAL},
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{"BOTH", 0, type_cb, (void*)Fl_Scroll::BOTH},
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{"HORIZONTAL_ALWAYS", 0, type_cb, (void*)Fl_Scroll::HORIZONTAL_ALWAYS},
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{"VERTICAL_ALWAYS", 0, type_cb, (void*)Fl_Scroll::VERTICAL_ALWAYS},
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{"BOTH_ALWAYS", 0, type_cb, (void*)Fl_Scroll::BOTH_ALWAYS},
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{0}
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};
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void align_cb(Fl_Widget*, void* v) {
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thescroll->scrollbar.align(int(v));
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thescroll->redraw();
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}
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Fl_Menu_Item align_choices[] = {
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{"left+top", 0, align_cb, (void*)(FL_ALIGN_LEFT+FL_ALIGN_TOP)},
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{"left+bottom", 0, align_cb, (void*)(FL_ALIGN_LEFT+FL_ALIGN_BOTTOM)},
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{"right+top", 0, align_cb, (void*)(FL_ALIGN_RIGHT+FL_ALIGN_TOP)},
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{"right+bottom", 0, align_cb, (void*)(FL_ALIGN_RIGHT+FL_ALIGN_BOTTOM)},
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{0}
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};
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int main(int argc, char** argv) {
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Fl_Window window(5*75,400);
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window.box(FL_NO_BOX);
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Fl_Scroll scroll(0,0,5*75,300);
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int n = 0;
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for (int y=0; y<16; y++) for (int x=0; x<5; x++) {
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char buf[20]; sprintf(buf,"%d",n++);
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Fl_Button* b = new Fl_Button(x*75,y*25+(y>=8?5*75:0),75,25,strdup(buf));
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b->color(n);
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b->labelcolor(FL_WHITE);
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}
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Drawing drawing(0,8*25,5*75,5*75,0);
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scroll.end();
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window.resizable(scroll);
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Fl_Box box(0,300,5*75,window.h()-300); // gray area below the scroll
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box.box(FL_FLAT_BOX);
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Fl_Toggle_Button but1(150, 310, 200, 25, "box");
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but1.callback(box_cb);
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Fl_Choice choice(150, 335, 200, 25, "type():");
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choice.menu(choices);
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choice.value(3);
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Fl_Choice achoice(150, 360, 200, 25, "scrollbar.align():");
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achoice.menu(align_choices);
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achoice.value(3);
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thescroll = &scroll;
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//scroll.box(FL_DOWN_BOX);
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//scroll.type(Fl_Scroll::VERTICAL);
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window.end();
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window.show(argc,argv);
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return Fl::run();
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}
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