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[libami] add button, textbox and textinput from requestchoice/executecmd

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Marcus had written up workbench style widgets inside the two external
helper programs requestchoice and executecmd.  This ports the code over
to libami.

Note that there isn't a generic gadget or collection of gadgets yet -
this is purely a refactor of the code, and the upcoming commit that
migrates requestchoice/executecmd over to use them just handles them
directly via xlib like they have always done.
This commit is contained in:
Adrian Chadd
2022-04-09 17:33:21 -07:00
parent 161a78e648
commit 0e5c81f6e3
7 changed files with 726 additions and 2 deletions
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136
libami/gadget_button.c Normal file
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#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <X11/keysym.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#include <errno.h>
#ifdef USE_FONTSETS
#include <locale.h>
#include <wchar.h>
#endif
#include "drawinfo.h"
#include "gadget_button.h"
#ifdef AMIGAOS
#include <pragmas/xlib_pragmas.h>
extern struct Library *XLibBase;
#endif
/*
* This is the button code from the executecmd.c tool.
*/
struct gadget_button *
gadget_button_init(Display *dpy, struct DrawInfo *dri, GC gc, Window mainwin,
int x, int y, int butw, int buth)
{
struct gadget_button *b;
b = calloc(1, sizeof(*b));
if (b == NULL) {
return (NULL);
}
b->dpy = dpy;
b->dri = dri;
b->x = x;
b->y = y;
b->butw = butw;
b->buth = buth;
b->txt = strdup("");
b->gc = gc;
b->w = XCreateSimpleWindow(dpy, mainwin,
x, y,
butw, /* width */
buth, /* height */
0, /* depth */
dri->dri_Pens[SHADOWPEN],
dri->dri_Pens[BACKGROUNDPEN]);
XSelectInput(dpy, b->w, ExposureMask | ButtonPressMask
| ButtonReleaseMask | EnterWindowMask | LeaveWindowMask);
return (b);
}
void
gadget_button_set_text(struct gadget_button *b, const char *txt)
{
if (b->txt != NULL)
free(b->txt);
b->txt = strdup(txt);
}
void
gadget_button_refresh(struct gadget_button *b)
{
int fh = b->dri->dri_Ascent + b->dri->dri_Descent;
int h = fh + (2 * BUT_VSPACE);
int l=strlen(b->txt);
#ifdef USE_FONTSETS
int tw = XmbTextEscapement(b->dri->dri_FontSet, b->txt, l);
#else
int tw = XTextWidth(b->dri->dri_Font, b->txt, l);
#endif
XSetForeground(b->dpy, b->gc, b->dri->dri_Pens[TEXTPEN]);
#ifdef USE_FONTSETS
XmbDrawString(b->dpy, b->w, b->dri->dri_FontSet, b->gc,
(b->butw-tw)>>1, b->dri->dri_Ascent+BUT_VSPACE, b->txt, l);
#else
XDrawString(b->dpy, b->w, b->gc, (b->butw-tw)>>1,
b->dri->dri_Ascent+BUT_VSPACE, b->txt, l);
#endif
XSetForeground(b->dpy, b->gc,
b->dri->dri_Pens[b->depressed ? SHADOWPEN:SHINEPEN]);
XDrawLine(b->dpy, b->w, b->gc, 0, 0, b->butw-2, 0);
XDrawLine(b->dpy, b->w, b->gc, 0, 0, 0, h-2);
XSetForeground(b->dpy, b->gc,
b->dri->dri_Pens[b->depressed ? SHINEPEN:SHADOWPEN]);
XDrawLine(b->dpy, b->w, b->gc, 1, h-1, b->butw-1, h-1);
XDrawLine(b->dpy, b->w, b->gc, b->butw-1, 1, b->butw-1, h-1);
XSetForeground(b->dpy, b->gc, b->dri->dri_Pens[BACKGROUNDPEN]);
XDrawPoint(b->dpy, b->w, b->gc, b->butw-1, 0);
XDrawPoint(b->dpy, b->w, b->gc, 0, h-1);
}
void
gadget_button_set_depressed(struct gadget_button *b, int depressed)
{
b->depressed = depressed;
}
void
gadget_button_toggle(struct gadget_button *b)
{
int pen;
pen = (b->depressed) ? FILLPEN : BACKGROUNDPEN;
XSetWindowBackground(b->dpy, b->w, b->dri->dri_Pens[pen]);
XClearWindow(b->dpy, b->w);
gadget_button_refresh(b);
}
void
gadget_button_free(struct gadget_button *b)
{
XDestroyWindow(b->dpy, b->w);
free(b->txt);
free(b);
}