394 lines
11 KiB
C
394 lines
11 KiB
C
/*
|
|
* textbox.c - text box widget
|
|
*
|
|
* Copyright © 2007-2008 Julien Danjou <julien@danjou.info>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
*/
|
|
|
|
#include "widget.h"
|
|
#include "common/tokenize.h"
|
|
|
|
/** The textbox private data structure */
|
|
typedef struct
|
|
{
|
|
draw_text_context_t data;
|
|
/** Textbox width */
|
|
int width;
|
|
/** Extents */
|
|
area_t extents;
|
|
PangoEllipsizeMode ellip;
|
|
PangoWrapMode wrap;
|
|
/** Border */
|
|
struct
|
|
{
|
|
int width;
|
|
xcolor_t color;
|
|
} border;
|
|
/** Text alignment */
|
|
alignment_t align;
|
|
/** Margin */
|
|
padding_t margin;
|
|
/** Background color */
|
|
xcolor_t bg;
|
|
/** Background image */
|
|
image_t *bg_image;
|
|
/** Background resize to wibox height. */
|
|
bool bg_resize;
|
|
/** Background alignment */
|
|
alignment_t bg_align;
|
|
} textbox_data_t;
|
|
|
|
static area_t
|
|
textbox_geometry(widget_t *widget, int screen, int height, int width)
|
|
{
|
|
area_t geometry;
|
|
textbox_data_t *d = widget->data;
|
|
|
|
geometry.height = height;
|
|
|
|
if(d->width)
|
|
geometry.width = d->width;
|
|
else if(widget->align == AlignFlex)
|
|
geometry.width = width;
|
|
else if(d->bg_image)
|
|
{
|
|
double ratio = d->bg_resize ? (double) geometry.height / d->bg_image->height : 1;
|
|
geometry.width = MIN(width, MAX(d->extents.width + d->margin.left + d->margin.right, MAX(d->width, d->bg_image->width * ratio)));
|
|
}
|
|
else
|
|
geometry.width = MIN(d->extents.width + d->margin.left + d->margin.right, width);
|
|
|
|
return geometry;
|
|
}
|
|
|
|
/** Draw a textbox widget.
|
|
* \param widget The widget.
|
|
* \param ctx The draw context.
|
|
* \param screen The screen.
|
|
* \param p A pointer to the object we're draw onto.
|
|
*/
|
|
static void
|
|
textbox_draw(widget_t *widget, draw_context_t *ctx, area_t geometry,
|
|
int screen, wibox_t *p)
|
|
{
|
|
textbox_data_t *d = widget->data;
|
|
|
|
if(d->bg.initialized)
|
|
draw_rectangle(ctx, geometry, 1.0, true, &d->bg);
|
|
|
|
if(d->border.width > 0)
|
|
draw_rectangle(ctx, geometry, d->border.width, false, &d->border.color);
|
|
|
|
if(d->bg_image)
|
|
{
|
|
double ratio = d->bg_resize ? (double) geometry.height / d->bg_image->height : 1;
|
|
/* check there is enough space to draw the image */
|
|
if(ratio * d->bg_image->width <= geometry.width)
|
|
{
|
|
int x = geometry.x;
|
|
int y = geometry.y;
|
|
switch(d->bg_align)
|
|
{
|
|
case AlignCenter:
|
|
x += (geometry.width - d->bg_image->width * ratio) / 2;
|
|
break;
|
|
case AlignRight:
|
|
x += geometry.width - d->bg_image->width * ratio;
|
|
break;
|
|
case AlignBottom:
|
|
y += geometry.height - d->bg_image->height * ratio;
|
|
break;
|
|
case AlignMiddle:
|
|
y += (geometry.height - d->bg_image->height * ratio) / 2;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
draw_image(ctx, x, y, ratio, d->bg_image);
|
|
}
|
|
}
|
|
|
|
draw_text(ctx, &d->data, d->ellip, d->wrap, d->align, &d->margin, geometry, &d->extents);
|
|
}
|
|
|
|
/** Delete a textbox widget.
|
|
* \param w The widget to destroy.
|
|
*/
|
|
static void
|
|
textbox_destructor(widget_t *w)
|
|
{
|
|
textbox_data_t *d = w->data;
|
|
draw_text_context_wipe(&d->data);
|
|
p_delete(&d);
|
|
}
|
|
|
|
static int
|
|
luaA_textbox_margin(lua_State *L)
|
|
{
|
|
widget_t **widget = luaA_checkudata(L, 1, "widget");
|
|
textbox_data_t *d = (*widget)->data;
|
|
|
|
if(lua_gettop(L) == 2)
|
|
{
|
|
d->margin = luaA_getopt_padding(L, 3, &d->margin);
|
|
widget_invalidate_bywidget(*widget);
|
|
}
|
|
|
|
return luaA_pushpadding(L, &d->margin);
|
|
}
|
|
|
|
/** Textbox widget.
|
|
* \param L The Lua VM state.
|
|
* \param token The key token.
|
|
* \return The number of elements pushed on stack.
|
|
* \luastack
|
|
* \lfield text The text to display.
|
|
* \lfield width The width of the textbox. Set to 0 for auto.
|
|
* \lfield wrap The wrap mode: word, char, word_char.
|
|
* \lfield ellipsize The ellipsize mode: start, middle or end.
|
|
* \lfield border_width The border width to draw around.
|
|
* \lfield border_color The border color.
|
|
* \lfield align Text alignment, left, center or right.
|
|
* \lfield margin Method to pass text margin: a table with top, left, right and bottom keys.
|
|
* \lfield bg Background color.
|
|
* \lfield bg_image Background image.
|
|
* \lfield bg_align Background image alignment, left, center, right, bottom, top or middle
|
|
* \lfield bg_resize Background resize.
|
|
*/
|
|
static int
|
|
luaA_textbox_index(lua_State *L, awesome_token_t token)
|
|
{
|
|
widget_t **widget = luaA_checkudata(L, 1, "widget");
|
|
textbox_data_t *d = (*widget)->data;
|
|
|
|
switch(token)
|
|
{
|
|
case A_TK_BG_RESIZE:
|
|
lua_pushboolean(L, d->bg_resize);
|
|
return 1;
|
|
case A_TK_BG_ALIGN:
|
|
lua_pushstring(L, draw_align_tostr(d->bg_align));
|
|
return 1;
|
|
case A_TK_BG_IMAGE:
|
|
if(d->bg_image)
|
|
return luaA_image_userdata_new(L, d->bg_image);
|
|
else
|
|
return 0;
|
|
case A_TK_BG:
|
|
return luaA_pushcolor(L, &d->bg);
|
|
case A_TK_MARGIN:
|
|
lua_pushcfunction(L, luaA_textbox_margin);
|
|
return 1;
|
|
case A_TK_ALIGN:
|
|
lua_pushstring(L, draw_align_tostr(d->align));
|
|
return 1;
|
|
case A_TK_BORDER_WIDTH:
|
|
lua_pushnumber(L, d->border.width);
|
|
return 1;
|
|
case A_TK_BORDER_COLOR:
|
|
luaA_pushcolor(L, &d->border.color);
|
|
return 1;
|
|
case A_TK_TEXT:
|
|
if(d->data.len > 0)
|
|
{
|
|
lua_pushlstring(L, d->data.text, d->data.len);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
case A_TK_WIDTH:
|
|
lua_pushnumber(L, d->width);
|
|
return 1;
|
|
case A_TK_WRAP:
|
|
switch(d->wrap)
|
|
{
|
|
default:
|
|
lua_pushliteral(L, "word");
|
|
break;
|
|
case A_TK_CHAR:
|
|
lua_pushliteral(L, "char");
|
|
break;
|
|
case A_TK_WORD_CHAR:
|
|
lua_pushliteral(L, "word_char");
|
|
break;
|
|
}
|
|
return 1;
|
|
case A_TK_ELLIPSIZE:
|
|
switch(d->ellip)
|
|
{
|
|
case A_TK_START:
|
|
lua_pushliteral(L, "start");
|
|
break;
|
|
case A_TK_MIDDLE:
|
|
lua_pushliteral(L, "middle");
|
|
break;
|
|
default:
|
|
lua_pushliteral(L, "end");
|
|
break;
|
|
}
|
|
return 1;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/** The __newindex method for a textbox object.
|
|
* \param L The Lua VM state.
|
|
* \param token The key token.
|
|
* \return The number of elements pushed on stack.
|
|
*/
|
|
static int
|
|
luaA_textbox_newindex(lua_State *L, awesome_token_t token)
|
|
{
|
|
size_t len = 0;
|
|
widget_t **widget = luaA_checkudata(L, 1, "widget");
|
|
const char *buf = NULL;
|
|
textbox_data_t *d = (*widget)->data;
|
|
image_t **image = NULL;
|
|
|
|
switch(token)
|
|
{
|
|
case A_TK_BG_ALIGN:
|
|
buf = luaL_checklstring(L, 3, &len);
|
|
d->bg_align = draw_align_fromstr(buf, len);
|
|
break;
|
|
case A_TK_BG_RESIZE:
|
|
d->bg_resize = luaA_checkboolean(L, 3);
|
|
break;
|
|
case A_TK_BG_IMAGE:
|
|
if(lua_isnil(L, 3)
|
|
|| (image = luaA_checkudata(L, 3, "image")))
|
|
{
|
|
/* unref image */
|
|
image_unref(&d->bg_image);
|
|
if(image)
|
|
d->bg_image = image_ref(image);
|
|
else
|
|
d->bg_image = NULL;
|
|
}
|
|
break;
|
|
case A_TK_BG:
|
|
if(lua_isnil(L, 3))
|
|
p_clear(&d->bg, 1);
|
|
else if((buf = luaL_checklstring(L, 3, &len)))
|
|
xcolor_init_reply(xcolor_init_unchecked(&d->bg, buf, len));
|
|
break;
|
|
case A_TK_ALIGN:
|
|
if((buf = luaL_checklstring(L, 3, &len)))
|
|
d->align = draw_align_fromstr(buf, len);
|
|
break;
|
|
case A_TK_BORDER_COLOR:
|
|
if((buf = luaL_checklstring(L, 3, &len)))
|
|
xcolor_init_reply(xcolor_init_unchecked(&d->border.color, buf, len));
|
|
break;
|
|
case A_TK_BORDER_WIDTH:
|
|
d->border.width = luaL_checknumber(L, 3);
|
|
break;
|
|
case A_TK_TEXT:
|
|
if(lua_isnil(L, 3)
|
|
|| (buf = luaL_checklstring(L, 3, &len)))
|
|
{
|
|
/* delete */
|
|
draw_text_context_wipe(&d->data);
|
|
p_clear(&d->data, 1);
|
|
|
|
if(buf)
|
|
{
|
|
char *text;
|
|
ssize_t tlen;
|
|
/* if text has been converted to UTF-8 */
|
|
if(draw_iso2utf8(buf, len, &text, &tlen))
|
|
{
|
|
draw_text_context_init(&d->data, text, tlen);
|
|
p_delete(&text);
|
|
}
|
|
else
|
|
draw_text_context_init(&d->data, buf, len);
|
|
|
|
d->extents = draw_text_extents(&d->data);
|
|
}
|
|
else
|
|
p_clear(&d->extents, 1);
|
|
}
|
|
break;
|
|
case A_TK_WIDTH:
|
|
d->width = luaL_checknumber(L, 3);
|
|
break;
|
|
case A_TK_WRAP:
|
|
if((buf = luaL_checklstring(L, 3, &len)))
|
|
switch(a_tokenize(buf, len))
|
|
{
|
|
case A_TK_WORD:
|
|
d->wrap = PANGO_WRAP_WORD;
|
|
break;
|
|
case A_TK_CHAR:
|
|
d->wrap = PANGO_WRAP_CHAR;
|
|
break;
|
|
case A_TK_WORD_CHAR:
|
|
d->wrap = PANGO_WRAP_WORD_CHAR;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case A_TK_ELLIPSIZE:
|
|
if((buf = luaL_checklstring(L, 3, &len)))
|
|
switch(a_tokenize(buf, len))
|
|
{
|
|
case A_TK_START:
|
|
d->ellip = PANGO_ELLIPSIZE_START;
|
|
break;
|
|
case A_TK_MIDDLE:
|
|
d->ellip = PANGO_ELLIPSIZE_MIDDLE;
|
|
break;
|
|
case A_TK_END:
|
|
d->ellip = PANGO_ELLIPSIZE_END;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
|
|
widget_invalidate_bywidget(*widget);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/** Create a new textbox widget.
|
|
* \param w The widget to initialize.
|
|
* \return A brand new widget.
|
|
*/
|
|
widget_t *
|
|
widget_textbox(widget_t *w)
|
|
{
|
|
w->align_supported |= AlignFlex;
|
|
w->draw = textbox_draw;
|
|
w->index = luaA_textbox_index;
|
|
w->newindex = luaA_textbox_newindex;
|
|
w->destructor = textbox_destructor;
|
|
w->geometry = textbox_geometry;
|
|
|
|
textbox_data_t *d = w->data = p_new(textbox_data_t, 1);
|
|
d->ellip = PANGO_ELLIPSIZE_END;
|
|
|
|
return w;
|
|
}
|
|
|
|
// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
|