/* * (c) Copyright 1991 Sun Microsystems, Inc. All rights reserved. * See LEGAL_NOTICE file for terms and restrictions. */ #ifndef lint #ifdef sccs static char sccsid[] = "@(#)drawtext.c 1.26 91/05/06"; #endif #endif /* issues: * should this decrement/increment reference count on fonts * when creating/destroying? The first problem is that you can't * say the object being created is the owner in the xv_find() call * which means that reference count should be maintained. */ #include #include #include #include #include #include #include #include #include "do_impl.h" #include "r_impl.h" #include Pkg_private int drawtext_init(); Pkg_private Xv_opaque drawtext_set_avlist(); Pkg_private Xv_opaque drawtext_get_attr(); Pkg_private int drawtext_destroy(); void drawtext_paint_proc(); int drawtext_event_proc(); /*ARGSUSED*/ Pkg_private int drawtext_init(parent, drawtext, avlist) Xv_opaque parent; Drawtext drawtext; Attr_avlist avlist; { Drawtext_info *dinfo; Rectobj_info *rinfo = RECTOBJ_PRIVATE(drawtext); Drawtext_struct *drawtext_object; dinfo = xv_alloc(Drawtext_info); dinfo->public_self = drawtext; drawtext_object = (Drawtext_struct*) drawtext; drawtext_object->private_data = (Xv_opaque) dinfo; /* * this shouldn't be done here... but in the set proc * at least then we can use the right handle for owner */ dinfo->font = xv_find(XV_NULL, FONT, NULL); dinfo->font_info = (XFontStruct*)xv_get(dinfo->font, FONT_INFO); rinfo->event_proc = drawtext_event_proc; rinfo->paint_proc = drawtext_paint_proc; rinfo->selectable = TRUE; return(XV_OK); } Pkg_private Xv_opaque drawtext_set_avlist(drawtext, avlist) Drawtext drawtext; register Attr_avlist avlist; { register Drawobj_attr attr; register Drawtext_info *dinfo = DRAWTEXT_PRIVATE(drawtext); Rectobj_info *rinfo = RECTOBJ_PRIVATE(drawtext); Shared_info *sh_info = rinfo->shared_info; int rect_changed = FALSE; int font_changed = FALSE; if(*avlist != XV_END_CREATE) { Xv_opaque set_result; set_result = xv_super_set_avlist(drawtext, &drawtext_pkg, avlist); if(set_result != XV_OK) { rectobj_reset_set_info(drawtext); return(set_result); } } while (attr = (Drawobj_attr) * avlist++) switch (attr) { case DRAWTEXT_STRING: if(dinfo->string) free(dinfo->string); /* what if *avlist is NULL? */ dinfo->string = strdup((char*)*avlist++); rect_changed = TRUE; /* change the rect and repaint */ break; case DRAWTEXT_FONT: dinfo->font = (Xv_font)*avlist++; dinfo->font_info = (XFontStruct*)xv_get(dinfo->font, FONT_INFO); rect_changed = TRUE; font_changed = TRUE; break; case XV_END_CREATE: font_changed = TRUE; rect_changed = TRUE; /* force calculation of the rect */ break; default: avlist = attr_skip(attr, avlist); } if(font_changed || (sh_info != rinfo->shared_info)) { if(dinfo->gc && sh_info) { XFreeGC(sh_info->dpy, dinfo->gc); dinfo->gc = 0; } if(rinfo->shared_info) { dinfo->gc = XCreateGC(rinfo->shared_info->dpy, xv_get(rinfo->shared_info->canvas_shell, XV_XID), 0, 0); XSetFont(rinfo->shared_info->dpy, dinfo->gc, (Font)xv_get(dinfo->font, XV_XID)); XSetForeground(rinfo->shared_info->dpy, dinfo->gc, rinfo->shared_info->pixels[rinfo->fg_color]); } } if(rect_changed) { rinfo->repaint = TRUE; if(dinfo->string) { /* only for width and height change */ rinfo->rect.r_width = XTextWidth(dinfo->font_info, dinfo->string, strlen(dinfo->string)); rinfo->rect.r_height= dinfo->font_info->ascent + dinfo->font_info->descent; } else { rinfo->rect.r_width = rinfo->rect.r_height = 0; } } rectobj_finish_set(drawtext); return(XV_SET_DONE); } /*ARGSUSED*/ Pkg_private Xv_opaque drawtext_get_attr(drawtext, status, which_attr, avlist) Drawtext drawtext; int *status; register Attr_attribute which_attr; Attr_avlist avlist; { Drawtext_info *dinfo = DRAWTEXT_PRIVATE(drawtext); switch (which_attr) { case DRAWTEXT_STRING: return (Xv_opaque) dinfo->string; case DRAWTEXT_FONT: return (Xv_opaque) dinfo->font; default: *status = XV_ERROR; return (Xv_opaque) 0; } } /*ARGSUSED*/ Pkg_private int drawtext_destroy(drawtext, status) Drawtext drawtext; Destroy_status status; { Drawtext_info *dinfo = DRAWTEXT_PRIVATE(drawtext); Rectobj_info *rinfo = RECTOBJ_PRIVATE(drawtext); if ((status == DESTROY_CHECKING) || (status == DESTROY_SAVE_YOURSELF)) return XV_OK; free(dinfo->string); free(dinfo); return XV_OK; } /*ARGSUSED*/ Pkg_private void drawtext_paint_proc(drawtext, dpy, win, xrects) Drawtext drawtext; Display *dpy; Window win; Xv_xrectlist *xrects; { Drawtext_info *dinfo = DRAWTEXT_PRIVATE(drawtext); Rectobj_info *rinfo = RECTOBJ_PRIVATE(drawtext); /* hack, the gc should always be created when it gets this far. */ if(!dinfo->gc) return; if(xrects && xrects->count) XSetClipRectangles(dpy, dinfo->gc, 0, 0, xrects->rect_array, xrects->count, Unsorted); if(rinfo->selected) { XSetForeground(dpy, dinfo->gc, rinfo->shared_info->pixels[rinfo->fg_color]); XFillRectangle(dpy, win, dinfo->gc, rinfo->rect.r_left, rinfo->rect.r_top, rinfo->rect.r_width, rinfo->rect.r_height); XSetForeground(dpy, dinfo->gc, rinfo->shared_info->pixels[rinfo->bg_color]); } else { XSetForeground(dpy, dinfo->gc, rinfo->shared_info->pixels[rinfo->bg_color]); XFillRectangle(dpy, win, dinfo->gc, rinfo->rect.r_left, rinfo->rect.r_top, rinfo->rect.r_width, rinfo->rect.r_height); XSetForeground(dpy, dinfo->gc, rinfo->shared_info->pixels[rinfo->fg_color]); } if(dinfo->string) XDrawString(dpy, win, dinfo->gc, rinfo->rect.r_left, rinfo->rect.r_top + dinfo->font_info->ascent, dinfo->string, strlen(dinfo->string)); if(rinfo->children) rectobj_paint_children(drawtext, dpy, win, xrects); } int drawtext_event_proc(paint_window, event, canvas, drawtext) Xv_window paint_window; Event *event; Canvas canvas; Drawtext drawtext; { Drawtext_info *dinfo = DRAWTEXT_PRIVATE(drawtext); extern void start_dbl_click(); start_dbl_click(paint_window, event, canvas, drawtext); return TRUE; }