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// win-demo.c :
// demonstration of some basic classes and functionality of grafix
#include "window.h"
// derived class of window
class my_window : public window {
public: my_window(window & parent, int w, int h, int x, int y) :
window(parent,w,h,x,y) {}
virtual void redraw() { // virtual fn replaces window::redraw
int y;
for (y=0; y < height ; y+= 3) line(0, y, width, y);
}
};
// window shows a variable string which is selected from radio_menu
// deft is the starting value
class displ : public window {
public:
char * val;
displ(window & parent, char * deft, int w, int h, int x, int y) :
window (parent,w,h,x,y) { val = deft; }
virtual void redraw() { clear(); PlaceText(val); }
virtual void action(char* /* menu */, char * value) {
val = value;
redraw();
}
};
// test of keyboard-Events : output of state and key
class key_test : public button {
char info[200];
public:
key_test(window & parent, int w, int h, int x, int y) :
button (parent,"keyboard test",w,h,x,y) {
selection_mask |= KeyPressMask;
add_help("Press any key","to show its","State, Code, Keysym",0);
}
virtual void KeyPress_CB(XKeyEvent ev) {
// only Shift state (0x1) is recongnized in XLookupKeysym
KeySym keysym = XLookupKeysym(&ev,ev.state & 1);
sprintf(info,"state = 0x%x code = 0x%x keysym = 0x%lx -> '%s'",
ev.state,ev.keycode,keysym,XKeysymToString(keysym));
printf("%s\n",info);
Name = info; clear(); // draw info for Name
redraw();
}
};
// quit as a callback function
void cb_fn() { printf(" cb \n"); }
void quit() { exit(0); }
void funct(int n, char * s1, char * s2) {
printf("funct called with int %d, char * %s, char * %s\n",n,s1,s2);
}
scrollbar * scbr;
main_window *mainw;
void sbinf() { printf(" %g",scbr->value); fflush(stdout); };
// lists all children recursively
void child_tree(window *pp) {
static int nest = 0;
win_list * cc = pp->children;
nest++;
while (cc) {
window * cw = cc->child;
int i; for (i=0; i < nest; i++) printf(" "); // recursion depth
printf("Win %lx (%dx%d) at %d,%d\n",cw->Win,cw->width,cw->height,
cc->x,cc->y);
child_tree(cw);
cc = cc->next; }
nest--;
}
void child_print(window *pp) {
printf("window tree of Win %lx (%dx%d)\n",pp->Win,pp->width,pp->height);
child_tree(pp);
}
static Bool toggle = False; // state of sb-button : toggle it
void disable(button *sb) { if (toggle) sb->disable(); else sb->enable(); }
int main(int /* argc */, char *argv[]) {
main_window *mainw = new main_window(argv[0], 300, 300); // Main Window
// 1. child : a quit button
window* qb = new quit_button(*mainw,100,20, 0, 0);
qb->add_help("this is","dynamic help","for quit",0);
qb->CB_info = TRUE; // debug inform about all event
// 2. child : simple window
window *child = new window(*mainw, 80, 100, 0, 100);
new button(*child, "button", 50, 20, 10, 10);
// a button with callback-function
button *sb = new callback_button(*child, "cb-info", cb_fn, 50,20,10, 40);
sb->CB_info = TRUE; // debug inform about all events
// toggle state of sb :
new switch_button(*child, "disable", "enable", &toggle, (VVP) &disable, sb, 50,20,10, 70);
// a popup window connected with a popup-button
main_window *popup = new main_window("popup", 200, 100);
popup->CB_info = True;
new button(*popup, "hello", 100, 20, 0, 0);
new unmap_button(*popup, "delete",100, 20, 100, 0);
new popup_button(*mainw, popup, "popup", 100, 20, 0, 30);
// help button
char * text[] = {"this is help text for help button", "here the 2. line", 0};
new help_button(*mainw, 20, 60, text);
new my_window(*mainw, 60, 60, 110, 0); // user-defined window
// a simple pulldown window connected with pulldown_button
// and two childs
pulldown_window * pulldown;
int w = 80, h = 20, x = 210, y = 0;
pulldown = new pulldown_window (w, 200, 0, 0);
new button (*pulldown,"pp",w, 20, 0, 30);
new pulldown_button(*mainw, pulldown, "pulldown-1", w, h, x, y);
y+= 30;
struct but_cb pd_list[] = { {"button1", cb_fn}, {"quit", quit}};
make_pulldown_menu(*mainw, "pulldown-2", 2, pd_list, w, h, x, y); y+= 30;
// xwd_button : calls "xwd -id wid | xwud &" (produces copy on screen)
xwd_button xwd(*mainw,"dump"," | xwud &", mainw, w, h, x, y);
y+= 30;
// new template_button <void*>(*mainw,"children",
// &child_print, (void*) mainw, w, h, x, y);
y+= 30;
// radio button menu with display of toggled value
window *radio = new window(*mainw,100,70,100,100);
displ *dsp = new displ(*radio,"display",80,20,10,10);
char *blist[] = { "val-1", "***b2***", "val-2" , "xxxxxx", 0 };
char *help[] = {"this Help Text ","appears", "upon enter", "as popup",0};
make_radio_menu (*radio, "radio", blist, help, dsp, 80, 20, 10, 30);
new key_test(*mainw,300,20,0,200);
scbr = new scrollbar (*mainw,&sbinf,200,30,0,240,0,1000,500,"x = %.0f");
// a menu bar with autoplace buttons
menu_bar *mb = new menu_bar(*mainw,300,25,0,270);
int value = 1; // a toggle value for toggle_button below
new button(*mb,"buttons"); new button(*mb, "with");
new button(*mb,"autosizing");
// Demo for function_button -> calls 'funct'
new function_button(*mb,"funct",(CB) funct,1,"2.arg","3.");
new toggle_button(*mb, "toggle", &value);
new quit_button(*mb);
mainw->main_loop();
// delete mainw; -> is done automatically !
}
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