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port changes from goomwwm

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This commit is contained in:
seanpringle 2012-08-24 11:28:39 +10:00
parent 34b4a12083
commit 3c3d6305fc
2 changed files with 486 additions and 168 deletions
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284
simpleswitcher.c
View file

@ -52,6 +52,9 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#define OVERLAP(a,b,c,d) (((a)==(c) && (b)==(d)) || MIN((a)+(b), (c)+(d)) - MAX((a), (c)) > 0)
#define INTERSECT(x,y,w,h,x1,y1,w1,h1) (OVERLAP((x),(w),(x1),(w1)) && OVERLAP((y),(h),(y1),(h1)))
typedef unsigned char bool;
typedef unsigned long long bitmap;
void* allocate(unsigned long bytes)
{
void *ptr = malloc(bytes);
@ -160,6 +163,7 @@ Atom netatoms[NETATOMS];
#define REMOVE 0
#define TOGGLE 2
// X error handler
int oops(Display *d, XErrorEvent *ee)
{
@ -507,198 +511,142 @@ client* window_client(Window win)
return c;
}
// built-in filterable popup menu list
struct localmenu {
Window window;
GC gc;
Pixmap canvas;
XftFont *font;
XftColor *color;
XftDraw *draw;
XftColor fg, bg, hlfg, hlbg, bgalt;
unsigned long xbg;
char **lines, **filtered;
int done, max_lines, num_lines, input_size, line_height;
int current, width, height, horz_pad, vert_pad, offset;
char *input, *selected, *manual;
XIM xim;
XIC xic;
};
#include "textbox.c"
// redraw the popup menu window
void menu_draw(struct localmenu *my)
void menu_draw(textbox *text, textbox **boxes, int max_lines, int selected, char **filtered)
{
int i, n;
// draw text input bar
char bar[100]; int len = snprintf(bar, 100, ">.%s", my->input), cursor = MAX(2, my->line_height/10);
XGlyphInfo extents; XftTextExtentsUtf8(display, my->font, (unsigned char*)bar, len, &extents);
bar[1] = ' '; // XftTextExtentsUtf8 trims trailing space. replace the leading period we used to ensure cursor offset
XftDrawRect(my->draw, &my->bg, 0, 0, my->width, my->height);
XftDrawStringUtf8(my->draw, &my->fg, my->font, my->horz_pad, my->vert_pad+my->line_height-my->font->descent, (unsigned char*)bar, len);
XftDrawRect(my->draw, &my->fg, extents.width + my->horz_pad + cursor, my->vert_pad+2, cursor, my->line_height-4);
// filter lines by current input text
memset(my->filtered, 0, sizeof(char*) * (my->num_lines+1));
for (i = 0, n = 0; my->lines[i]; i++)
if (!my->offset || strcasestr(my->lines[i], my->input))
my->filtered[n++] = my->lines[i];
// vertical bounds of highlight bar
my->current = MAX(0, MIN(my->current, n-1));
for (i = 0; my->filtered[i]; i++)
int i;
textbox_draw(text);
for (i = 0; i < max_lines; i++)
{
XftColor fg = my->fg;
// vertical position of *top* of current line
int y = my->vert_pad+(my->line_height*(i+1));
// http://en.wikipedia.org/wiki/Typeface#Font_metrics
int font_baseline = y + my->line_height - my->font->descent -2;
// are we highlighting this line?
if (i == my->current)
{
fg = my->hlfg;
XftDrawRect(my->draw, &my->hlbg, my->horz_pad, y, my->width-(my->horz_pad*2), my->line_height);
} else
if (!(i%2))
{
// shade alternate lines for better readability
XftDrawRect(my->draw, &my->bgalt, my->horz_pad, y, my->width-(my->horz_pad*2), my->line_height);
}
XftDrawStringUtf8(my->draw, &fg, my->font, my->horz_pad, font_baseline, (unsigned char*)my->filtered[i], strlen(my->filtered[i]));
textbox_font(boxes[i], config_menu_font,
i == selected ? config_menu_hlfg: config_menu_fg,
i == selected ? config_menu_hlbg: config_menu_bg);
textbox_text(boxes[i], filtered[i] ? filtered[i]: "");
textbox_draw(boxes[i]);
}
// double buffering
XCopyArea(display, my->canvas, my->window, my->gc, 0, 0, my->width, my->height, 0, 0);
}
// select currently highlighted line and exit
void menu_select_current(struct localmenu *my)
int menu(char **lines, char **input, char *prompt, int selected)
{
if (my->filtered[my->current])
my->selected = my->filtered[my->current];
else
if (my->manual)
strcpy(my->manual, my->input);
my->done = 1;
}
// handle popup menu text input for filtering
void menu_key(struct localmenu *my, XEvent *ev)
{
char pad[32]; KeySym key; Status stat;
int len = XmbLookupString(my->xic, &ev->xkey, pad, sizeof(pad), &key, &stat);
if (stat == XBufferOverflow) return;
pad[len] = 0;
key = XkbKeycodeToKeysym(display, ev->xkey.keycode, 0, 0);
if (key == XK_Escape)
my->done = 1;
else
if (key == XK_BackSpace && my->offset > 0)
my->input[--(my->offset)] = 0;
else
if (key == XK_Up || key == XK_KP_Up || key == XK_KP_Subtract)
my->current = (my->current == 0 ? my->max_lines-1: my->current-1);
else
if (key == XK_Down || key == XK_Tab || key == XK_KP_Add)
my->current = (my->current == my->max_lines-1 ? 0: my->current+1);
else
if (key == XK_Return || key == XK_KP_Enter)
menu_select_current(my);
else
if (!iscntrl(*pad) && my->offset < my->input_size-1)
{
my->input[my->offset++] = *pad;
my->input[my->offset] = 0;
}
menu_draw(my);
}
// menu
int menu(char **lines, char *manual, int firstsel)
{
int i, l;
struct localmenu _my, *my = &_my;
int line = -1, i, j, chosen = 0;
workarea mon; monitor_active(&mon);
// this never fails, afaics. we get some sort of font, no matter what
my->font = XftFontOpenName(display, screen_id, config_menu_font);
XftColorAllocName(display, DefaultVisual(display, screen_id), DefaultColormap(display, screen_id), config_menu_fg, &my->fg);
XftColorAllocName(display, DefaultVisual(display, screen_id), DefaultColormap(display, screen_id), config_menu_bg, &my->bg);
XftColorAllocName(display, DefaultVisual(display, screen_id), DefaultColormap(display, screen_id), config_menu_bgalt, &my->bgalt);
XftColorAllocName(display, DefaultVisual(display, screen_id), DefaultColormap(display, screen_id), config_menu_hlfg, &my->hlfg);
XftColorAllocName(display, DefaultVisual(display, screen_id), DefaultColormap(display, screen_id), config_menu_hlbg, &my->hlbg);
my->line_height = my->font->ascent + my->font->descent +4; // +2 pixel extra line spacing
int num_lines = 0; for (; lines[num_lines]; num_lines++);
int max_lines = MIN(config_menu_lines, num_lines);
selected = MAX(MIN(num_lines-1, selected), 0);
for (l = 0, i = 0; lines[i]; i++) l = MAX(l, strlen(lines[i]));
int w = config_menu_width < 101 ? (mon.w/100)*config_menu_width: config_menu_width;
int x = mon.x + (mon.w - w)/2;
my->lines = lines;
my->num_lines = i;
my->max_lines = MIN(config_menu_lines, my->num_lines);
my->input_size = MAX(l, 100);
my->filtered = allocate_clear(sizeof(char*) * (my->num_lines+1));
my->input = allocate_clear((my->input_size+1)*3); // utf8 in copied line
my->current = firstsel; // index of currently highlighted line
my->offset = 0; // length of text in input buffer
my->done = 0; // bailout flag
my->horz_pad = 5; // horizontal padding
my->vert_pad = 5; // vertical padding
my->width = config_menu_width < 101 ? (mon.w/100)*config_menu_width: config_menu_width;
my->height = ((my->line_height) * (my->max_lines+1)) + (my->vert_pad*2);
my->xbg = color_get(config_menu_bg);
my->selected = NULL;
my->manual = manual;
Window box = XCreateSimpleWindow(display, root, x, 0, w, 300, 1, color_get(config_menu_bc), color_get(config_menu_bg));
XSelectInput(display, box, ExposureMask);
int x = mon.x + ((mon.w - my->width)/2);
int y = mon.y + (mon.h/2) - (my->height/2);
int b = 1;
my->window = XCreateSimpleWindow(display, root, x-b, y-b, my->width, my->height, b, color_get(config_menu_bc), my->xbg);
// make it an unmanaged window
window_set_atom_prop(my->window, netatoms[_NET_WM_STATE], &netatoms[_NET_WM_STATE_ABOVE], 1);
window_set_atom_prop(my->window, netatoms[_NET_WM_WINDOW_TYPE], &netatoms[_NET_WM_WINDOW_TYPE_DOCK], 1);
XSelectInput(display, my->window, ExposureMask|KeyPressMask);
window_set_atom_prop(box, netatoms[_NET_WM_STATE], &netatoms[_NET_WM_STATE_ABOVE], 1);
//window_set_atom_prop(box, netatoms[_NET_WM_WINDOW_TYPE], &netatoms[_NET_WM_WINDOW_TYPE_DOCK], 1);
XSetWindowAttributes attr; attr.override_redirect = True;
XChangeWindowAttributes(display, box, CWOverrideRedirect, &attr);
// drawing environment
my->gc = XCreateGC(display, my->window, 0, 0);
my->canvas = XCreatePixmap(display, root, my->width, my->height, DefaultDepth(display, screen_id));
my->draw = XftDrawCreate(display, my->canvas, DefaultVisual(display, screen_id), DefaultColormap(display, screen_id));
// search text input
textbox *text = textbox_create(box, TB_AUTOHEIGHT|TB_EDITABLE, 5, 5, w-10, 1,
config_menu_font, config_menu_fg, config_menu_bg, "", prompt);
textbox_show(text);
// input keymap->charmap handling
my->xim = XOpenIM(display, NULL, NULL, NULL);
my->xic = XCreateIC(my->xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing, XNClientWindow, my->window, XNFocusWindow, my->window, NULL);
int line_height = text->font->ascent + text->font->descent;
line_height += line_height/10;
menu_draw(my);
XMapRaised(display, my->window);
if (!take_keyboard(my->window))
// filtered list display
textbox **boxes = allocate_clear(sizeof(textbox*) * max_lines);
for (i = 0; i < max_lines; i++)
{
fprintf(stderr, "cannot grab keyboard!\n");
return my->max_lines;
boxes[i] = textbox_create(box, TB_AUTOHEIGHT, 5, (i+1) * line_height + 5, w-10, 1,
config_menu_font, config_menu_fg, config_menu_bg, lines[i], NULL);
textbox_show(boxes[i]);
}
menu_draw(my);
// main event loop
for(;!my->done;)
// filtered list
char **filtered = allocate_clear(sizeof(char*) * max_lines);
int filtered_lines = max_lines;
for (i = 0; i < max_lines; i++)
filtered[i] = lines[i];
// resize window vertically to suit
int h = line_height * (max_lines+1) + 8;
int y = mon.y + (mon.h - h)/2;
XMoveResizeWindow(display, box, x, y, w, h);
XMapRaised(display, box);
take_keyboard(box);
for (;;)
{
XEvent ev;
XNextEvent(display, &ev);
if (ev.type == Expose)
menu_draw(my);
{
while (XCheckTypedEvent(display, Expose, &ev));
menu_draw(text, boxes, max_lines, selected, filtered);
}
else
if (ev.type == KeyPress)
menu_key(my, &ev);
}
free(my->filtered);
XftDrawDestroy(my->draw);
XFreeGC(display, my->gc);
XftFontClose(display, my->font);
XDestroyWindow(display, my->window);
release_keyboard();
free(my->input);
{
while (XCheckTypedEvent(display, KeyPress, &ev));
if (my->selected)
for (i = 0; my->lines[i]; i++)
if (my->lines[i] == my->selected)
return i;
return -1;
int rc = textbox_keypress(text, &ev);
if (rc < 0)
{
chosen = 1;
break;
}
else
if (rc)
{
// input changed
for (i = 0, j = 0; i < num_lines && j < max_lines; i++)
if (strcasestr(lines[i], text->text))
filtered[j++] = lines[i];
filtered_lines = j;
selected = MAX(0, MIN(selected, j-1));
for (; j < max_lines; j++)
filtered[j] = NULL;
}
else
{
// unhandled key
KeySym key = XkbKeycodeToKeysym(display, ev.xkey.keycode, 0, 0);
if (key == XK_Escape)
break;
if (key == XK_Up)
selected = selected ? MAX(0, selected-1): MAX(0, filtered_lines-1);
if (key == XK_Down)
selected = selected < filtered_lines-1 ? MIN(filtered_lines-1, selected+1): 0;
}
menu_draw(text, boxes, max_lines, selected, filtered);
}
}
release_keyboard();
if (chosen && filtered[selected])
for (i = 0; line < 0 && i < num_lines; i++)
if (!strcmp(lines[i], filtered[selected]))
line = i;
if (line < 0 && input)
*input = strdup(text->text);
textbox_free(text);
for (i = 0; i < max_lines; i++)
textbox_free(boxes[i]);
XDestroyWindow(display, box);
free(filtered);
return line;
}
#define ALLWINDOWS 1
@ -780,7 +728,7 @@ void run_switcher(int mode, int fmode)
// strangeness...
display = XOpenDisplay(0);
XSync(display, True);
int n = menu(list, NULL, 1);
int n = menu(list, NULL, "> ", 1);
if (n >= 0 && list[n])
{
if (mode == ALLWINDOWS)

370
textbox.c Normal file
View file

@ -0,0 +1,370 @@
/* GoomwWM, Get out of my way, Window Manager!
MIT/X11 License
Copyright (c) 2012 Sean Pringle <sean.pringle@gmail.com>
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#define TB_AUTOHEIGHT 1<<0
#define TB_AUTOWIDTH 1<<1
#define TB_LEFT 1<<16
#define TB_RIGHT 1<<17
#define TB_CENTER 1<<18
#define TB_EDITABLE 1<<19
typedef struct {
bitmap flags;
Window window, parent;
short x, y, w, h;
short cursor;
XftFont *font;
XftColor color_fg, color_bg;
char *text, *prompt;
XIM xim;
XIC xic;
XGlyphInfo extents;
} textbox;
void textbox_font(textbox *tb, char *font, char *fg, char *bg);
void textbox_text(textbox *tb, char *text);
void textbox_moveresize(textbox *tb, int x, int y, int w, int h);
// Xft text box, optionally editable
textbox* textbox_create(Window parent, bitmap flags, short x, short y, short w, short h, char *font, char *fg, char *bg, char *text, char *prompt)
{
textbox *tb = allocate_clear(sizeof(textbox));
tb->flags = flags;
tb->parent = parent;
tb->x = x; tb->y = y; tb->w = MAX(1, w); tb->h = MAX(1, h);
tb->window = XCreateSimpleWindow(display, tb->parent, tb->x, tb->y, tb->w, tb->h, 0, None, color_get(bg));
// need to preload the font to calc line height
textbox_font(tb, font, fg, bg);
tb->prompt = strdup(prompt ? prompt: "");
textbox_text(tb, text ? text: "");
// auto height/width modes get handled here
textbox_moveresize(tb, tb->x, tb->y, tb->w, tb->h);
// edit mode controls
if (tb->flags & TB_EDITABLE)
{
tb->xim = XOpenIM(display, NULL, NULL, NULL);
tb->xic = XCreateIC(tb->xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing, XNClientWindow, tb->window, XNFocusWindow, tb->window, NULL);
}
return tb;
}
// set an Xft font by name
void textbox_font(textbox *tb, char *font, char *fg, char *bg)
{
if (tb->font) XftFontClose(display, tb->font);
tb->font = XftFontOpenName(display, screen_id, font);
XftColorAllocName(display, DefaultVisual(display, screen_id), DefaultColormap(display, screen_id), fg, &tb->color_fg);
XftColorAllocName(display, DefaultVisual(display, screen_id), DefaultColormap(display, screen_id), bg, &tb->color_bg);
}
// outer code may need line height, width, etc
void textbox_extents(textbox *tb)
{
int length = strlen(tb->text) + strlen(tb->prompt);
char *line = alloca(length + 1);
sprintf(line, "%s%s", tb->prompt, tb->text);
XftTextExtents8(display, tb->font, (unsigned char*)line, length, &tb->extents);
}
// set the default text to display
void textbox_text(textbox *tb, char *text)
{
if (tb->text) free(tb->text);
tb->text = strdup(text);
tb->cursor = MAX(0, MIN(strlen(text), tb->cursor));
textbox_extents(tb);
}
// set an input prompt for edit mode
void textbox_prompt(textbox *tb, char *text)
{
if (tb->prompt) free(tb->prompt);
tb->prompt = strdup(text);
textbox_extents(tb);
}
// within the parent. handled auto width/height modes
void textbox_moveresize(textbox *tb, int x, int y, int w, int h)
{
if (tb->flags & TB_AUTOHEIGHT)
h = tb->font->ascent + tb->font->descent;
if (tb->flags & TB_AUTOWIDTH)
w = tb->extents.width;
if (x != tb->x || y != tb->y || w != tb->w || h != tb->h)
{
tb->x = x; tb->y = y; tb->w = MAX(1, w); tb->h = MAX(1, h);
XMoveResizeWindow(display, tb->window, tb->x, tb->y, tb->w, tb->h);
}
}
void textbox_show(textbox *tb)
{
XMapWindow(display, tb->window);
}
void textbox_hide(textbox *tb)
{
XUnmapWindow(display, tb->window);
}
// will also unmap the window if still displayed
void textbox_free(textbox *tb)
{
if (tb->flags & TB_EDITABLE)
{
XDestroyIC(tb->xic);
XCloseIM(tb->xim);
}
if (tb->text) free(tb->text);
if (tb->prompt) free(tb->prompt);
if (tb->font) XftFontClose(display, tb->font);
XDestroyWindow(display, tb->window);
free(tb);
}
void textbox_draw(textbox *tb)
{
int i;
XGlyphInfo extents;
GC context = XCreateGC(display, tb->window, 0, 0);
Pixmap canvas = XCreatePixmap(display, tb->window, tb->w, tb->h, DefaultDepth(display, screen_id));
XftDraw *draw = XftDrawCreate(display, canvas, DefaultVisual(display, screen_id), DefaultColormap(display, screen_id));
// clear canvas
XftDrawRect(draw, &tb->color_bg, 0, 0, tb->w, tb->h);
char *line = tb->text,
*text = tb->text ? tb->text: "",
*prompt = tb->prompt ? tb->prompt: "";
int text_len = strlen(text);
int length = text_len;
int line_height = tb->font->ascent + tb->font->descent;
int line_width = 0;
int cursor_x = 0;
int cursor_offset = 0;
int cursor_width = MAX(2, line_height/10);
if (tb->flags & TB_EDITABLE)
{
int prompt_len = strlen(prompt);
length = text_len + prompt_len;
cursor_offset = MIN(tb->cursor + prompt_len, length);
line = alloca(length + 10);
sprintf(line, "%s%s", prompt, text);
// replace spaces so XftTextExtents8 includes their width
for (i = 0; i < length; i++) if (isspace(line[i])) line[i] = '_';
// calc cursor position
XftTextExtents8(display, tb->font, (unsigned char*)line, cursor_offset, &extents);
cursor_x = extents.width;
// restore correct text string with spaces
sprintf(line, "%s%s", prompt, text);
}
// calc full input text width
XftTextExtents8(display, tb->font, (unsigned char*)line, length, &extents);
line_width = extents.width;
int x = 0, y = tb->font->ascent;
if (tb->flags & TB_RIGHT) x = tb->w - line_width;
if (tb->flags & TB_CENTER) x = (tb->w - line_width) / 2;
// draw the text, including any prompt in edit mode
XftDrawString8(draw, &tb->color_fg, tb->font, x, y, (unsigned char*)line, length);
// draw the cursor
if (tb->flags & TB_EDITABLE)
XftDrawRect(draw, &tb->color_fg, cursor_x, 2, cursor_width, line_height-4);
// flip canvas to window
XCopyArea(display, canvas, tb->window, context, 0, 0, tb->w, tb->h, 0, 0);
XFreeGC(display, context);
XftDrawDestroy(draw);
XFreePixmap(display, canvas);
}
// cursor handling for edit mode
void textbox_cursor(textbox *tb, int pos)
{
tb->cursor = MAX(0, MIN(strlen(tb->text), pos));
}
// move right
void textbox_cursor_inc(textbox *tb)
{
textbox_cursor(tb, tb->cursor+1);
}
// move left
void textbox_cursor_dec(textbox *tb)
{
textbox_cursor(tb, tb->cursor-1);
}
// beginning of line
void textbox_cursor_home(textbox *tb)
{
tb->cursor = 0;
}
// end of line
void textbox_cursor_end(textbox *tb)
{
tb->cursor = strlen(tb->text);
}
// insert text
void textbox_insert(textbox *tb, int pos, char *str)
{
int len = strlen(tb->text), slen = strlen(str);
pos = MAX(0, MIN(len, pos));
// expand buffer
tb->text = reallocate(tb->text, len + slen + 1);
// move everything after cursor upward
char *at = tb->text + pos;
memmove(at + slen, at, len - pos + 1);
// insert new str
memmove(at, str, slen);
textbox_extents(tb);
}
// remove text
void textbox_delete(textbox *tb, int pos, int dlen)
{
int len = strlen(tb->text);
pos = MAX(0, MIN(len, pos));
// move everything after pos+dlen down
char *at = tb->text + pos;
memmove(at, at + dlen, len - pos);
textbox_extents(tb);
}
// insert one character
void textbox_cursor_ins(textbox *tb, char c)
{
char tmp[2] = { c, 0 };
textbox_insert(tb, tb->cursor, tmp);
textbox_cursor_inc(tb);
}
// delete on character
void textbox_cursor_del(textbox *tb)
{
textbox_delete(tb, tb->cursor, 1);
}
// back up and delete one character
void textbox_cursor_bkspc(textbox *tb)
{
if (tb->cursor > 0)
{
textbox_cursor_dec(tb);
textbox_cursor_del(tb);
}
}
// handle a keypress in edit mode
// 0 = unhandled
// 1 = handled
// -1 = handled and return pressed (finished)
int textbox_keypress(textbox *tb, XEvent *ev)
{
KeySym key; Status stat;
char pad[32]; int len;
if (!(tb->flags & TB_EDITABLE)) return 0;
len = XmbLookupString(tb->xic, &ev->xkey, pad, sizeof(pad), &key, &stat);
pad[len] = 0;
if (key == XK_Left)
{
textbox_cursor_dec(tb);
return 1;
}
else
if (key == XK_Right)
{
textbox_cursor_inc(tb);
return 1;
}
else
if (key == XK_Home)
{
textbox_cursor_home(tb);
return 1;
}
else
if (key == XK_End)
{
textbox_cursor_end(tb);
return 1;
}
else
if (key == XK_Delete)
{
textbox_cursor_del(tb);
return 1;
}
else
if (key == XK_BackSpace)
{
textbox_cursor_bkspc(tb);
return 1;
}
else
if (key == XK_Return)
{
return -1;
}
else
if (!iscntrl(*pad))
{
textbox_insert(tb, tb->cursor, pad);
textbox_cursor_inc(tb);
return 1;
}
return 0;
}