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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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123
libami/gadget_textbox.c Normal file
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#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "drawinfo.h"
#include "libami.h"
#ifdef AMIGAOS
#include <pragmas/xlib_pragmas.h>
extern struct Library *XLibBase;
#endif
#include "gadget_textbox.h"
#if 0
struct gadget_textbox_line {
struct line *next;
const char *text;
int l, w, h;
};
#endif
#if 0
struct gadget_textbox {
struct gadget_textbox_line *firstline, *lastline;
};
#endif
struct gadget_textbox *
gadget_textbox_create(Display *dpy, struct DrawInfo *dri, GC gc,
Window mainwin, int x, int y, int width, int height)
{
struct gadget_textbox *g;
g = calloc(1, sizeof(*g));
if (g == NULL) {
return (NULL);
}
g->dpy = dpy;
g->dri = dri;
g->gc = gc;
g->x = x;
g->y = y;
g->width = width;
g->height = height;
g->w = XCreateSimpleWindow(g->dpy, mainwin,
g->x, g->y,
g->width, g->height,
0,
g->dri->dri_Pens[SHADOWPEN],
g->dri->dri_Pens[BACKGROUNDPEN]);
XSelectInput(g->dpy, g->w, ExposureMask);
return (g);
}
void
gadget_textbox_free(struct gadget_textbox *g)
{
/* XXX TODO */
}
struct gadget_textbox_line *
gadget_textbox_addline(struct gadget_textbox *g, const char *text)
{
struct gadget_textbox_line *l;
l = calloc(1, sizeof(*l));
if (l == NULL) {
return (NULL);
}
if(g->lastline)
g->lastline->next = l;
else
g->firstline = l;
g->lastline = l;
l->text = strdup(text);
l->l = strlen(text);
#ifdef USE_FONTSETS
l->w = XmbTextEscapement(g->dri->dri_FontSet, l->text, l->l);
#else
l->w = XTextWidth(g->dri->dri_Font, l->text, l->l);
#endif
l->h = g->dri->dri_Ascent + g->dri->dri_Descent;
return (l);
}
void
gadget_textbox_refresh(struct gadget_textbox *g)
{
// This is OBVIOUSLY the wrong value for x here, but let's get it going
int x = TXT_HSPACE / 2;
int y = ((g->dri->dri_Ascent+g->dri->dri_Descent)>>1)+g->dri->dri_Ascent;
struct gadget_textbox_line *l;
/* Draw the bounding box */
XSetForeground(g->dpy, g->gc, g->dri->dri_Pens[SHADOWPEN]);
XDrawLine(g->dpy, g->w, g->gc, 0, 0, g->width-2, 0);
XDrawLine(g->dpy, g->w, g->gc, 0, 0, 0, g->height-2);
XSetForeground(g->dpy, g->gc, g->dri->dri_Pens[SHINEPEN]);
XDrawLine(g->dpy, g->w, g->gc, 0, g->height-1, g->width-1, g->height-1);
XDrawLine(g->dpy, g->w, g->gc, g->width-1, 0, g->width-1, g->height-1);
/* Draw text lines */
XSetForeground(g->dpy, g->gc, g->dri->dri_Pens[TEXTPEN]);
for(l = g->firstline; l; l=l->next) {
#ifdef USE_FONTSETS
XmbDrawString(g->dpy, g->w, g->dri->dri_FontSet, g->gc,
x, y, l->text, l->l);
#else
XDrawString(g->dpy, g->w, g->gc, x, y, l->text, l->l);
#endif
y+=g->dri->dri_Ascent + g->dri->dri_Descent;
}
}