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/* Copyright (C) 2007-2008 Geoff Richards
* Copyright (C) 2010-2011 Uli Schlachter
*
* 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.
*/
static int
scaled_font_create (lua_State *L) {
cairo_scaled_font_t **font;
cairo_matrix_t font_mat, ctm;
cairo_font_options_t *options = 0;
int options_needs_freeing = 0;
cairo_font_face_t **face = luaL_checkudata(L, 1, OOCAIRO_MT_NAME_FONTFACE);
from_lua_matrix(L, &font_mat, 2);
from_lua_matrix(L, &ctm, 3);
if (!lua_isnoneornil(L, 4))
options = *(cairo_font_options_t **)
luaL_checkudata(L, 4, OOCAIRO_MT_NAME_FONTOPT);
else {
/* This default font options object is needed because of a bug which
* prevents Cairo from accepting NULL to indicate default options, as
* it's documented to do. */
options = cairo_font_options_create();
options_needs_freeing = 1;
}
font = create_scaledfont_userdata(L);
assert(*face);
*font = cairo_scaled_font_create(*face, &font_mat, &ctm, options);
assert(cairo_scaled_font_status(*font) == CAIRO_STATUS_SUCCESS);
if (options_needs_freeing)
cairo_font_options_destroy(options);
return 1;
}
static int
scaledfont_eq (lua_State *L) {
cairo_scaled_font_t **obj1 = luaL_checkudata(L, 1, OOCAIRO_MT_NAME_SCALEDFONT);
cairo_scaled_font_t **obj2 = luaL_checkudata(L, 2, OOCAIRO_MT_NAME_SCALEDFONT);
lua_pushboolean(L, *obj1 == *obj2);
return 1;
}
static int
scaledfont_gc (lua_State *L) {
cairo_scaled_font_t **obj = luaL_checkudata(L, 1, OOCAIRO_MT_NAME_SCALEDFONT);
cairo_scaled_font_destroy(*obj);
*obj = 0;
return 0;
}
static int
scaledfont_extents (lua_State *L) {
cairo_scaled_font_t **obj = luaL_checkudata(L, 1, OOCAIRO_MT_NAME_SCALEDFONT);
cairo_font_extents_t extents;
cairo_scaled_font_extents(*obj, &extents);
create_lua_font_extents(L, &extents);
return 1;
}
static int
scaledfont_get_ctm (lua_State *L) {
cairo_scaled_font_t **obj = luaL_checkudata(L, 1, OOCAIRO_MT_NAME_SCALEDFONT);
cairo_matrix_t mat;
cairo_scaled_font_get_ctm(*obj, &mat);
create_lua_matrix(L, &mat);
return 1;
}
static int
scaledfont_get_font_face (lua_State *L) {
cairo_scaled_font_t **obj = luaL_checkudata(L, 1, OOCAIRO_MT_NAME_SCALEDFONT);
cairo_font_face_t **face = create_fontface_userdata(L);
*face = cairo_scaled_font_get_font_face(*obj);
cairo_font_face_reference(*face);
return 1;
}
static int
scaledfont_get_font_matrix (lua_State *L) {
cairo_scaled_font_t **obj = luaL_checkudata(L, 1, OOCAIRO_MT_NAME_SCALEDFONT);
cairo_matrix_t mat;
cairo_scaled_font_get_font_matrix(*obj, &mat);
create_lua_matrix(L, &mat);
return 1;
}
static int
scaledfont_get_font_options (lua_State *L) {
cairo_scaled_font_t **obj = luaL_checkudata(L, 1, OOCAIRO_MT_NAME_SCALEDFONT);
cairo_font_options_t **opt = create_fontopt_userdata(L);
*opt = cairo_font_options_create();
cairo_scaled_font_get_font_options(*obj, *opt);
return 1;
}
#if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 8, 0)
static int
scaledfont_get_scale_matrix (lua_State *L) {
cairo_scaled_font_t **obj = luaL_checkudata(L, 1, OOCAIRO_MT_NAME_SCALEDFONT);
cairo_matrix_t mat;
cairo_scaled_font_get_scale_matrix(*obj, &mat);
create_lua_matrix(L, &mat);
return 1;
}
#endif
static int
scaledfont_get_type (lua_State *L) {
cairo_scaled_font_t **obj = luaL_checkudata(L, 1, OOCAIRO_MT_NAME_SCALEDFONT);
return font_type_to_lua(L, cairo_scaled_font_get_type(*obj));
}
static int
scaledfont_glyph_extents (lua_State *L) {
cairo_scaled_font_t **obj = luaL_checkudata(L, 1, OOCAIRO_MT_NAME_SCALEDFONT);
cairo_glyph_t *glyphs;
int num_glyphs;
cairo_text_extents_t extents;
from_lua_glyph_array(L, &glyphs, &num_glyphs, 2);
cairo_scaled_font_glyph_extents(*obj, glyphs, num_glyphs, &extents);
if (glyphs)
GLYPHS_FREE(glyphs);
create_lua_text_extents(L, &extents);
return 1;
}
static int
scaledfont_text_extents (lua_State *L) {
cairo_scaled_font_t **obj = luaL_checkudata(L, 1, OOCAIRO_MT_NAME_SCALEDFONT);
cairo_text_extents_t extents;
cairo_scaled_font_text_extents(*obj, luaL_checkstring(L, 2), &extents);
create_lua_text_extents(L, &extents);
return 1;
}
#if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 8, 0)
static int
scaledfont_text_to_glyphs (lua_State *L) {
cairo_scaled_font_t **obj = luaL_checkudata(L, 1, OOCAIRO_MT_NAME_SCALEDFONT);
double x = luaL_checknumber(L, 2), y = luaL_checknumber(L, 3);
size_t text_len;
const char *text = luaL_checklstring(L, 4, &text_len);
cairo_glyph_t *glyphs = 0;
cairo_text_cluster_t *clusters = 0;
cairo_text_cluster_flags_t cluster_flags = 0;
int num_glyphs = 0, num_clusters = 0;
if (cairo_scaled_font_text_to_glyphs(
*obj, x, y, text, text_len,
&glyphs, &num_glyphs,
&clusters, &num_clusters, &cluster_flags) != CAIRO_STATUS_SUCCESS)
return luaL_error(L, "error converting text to glyphs");
create_lua_glyph_array(L, glyphs, num_glyphs);
GLYPHS_FREE(glyphs);
create_lua_text_cluster_table(L, clusters, num_clusters, cluster_flags);
cairo_text_cluster_free(clusters);
return 2;
}
#endif
static int
scaledfont_status (lua_State *L) {
cairo_scaled_font_t **obj = luaL_checkudata(L, 1, OOCAIRO_MT_NAME_SCALEDFONT);
return push_cairo_status(L, cairo_scaled_font_status(*obj));
}
static const luaL_Reg
scaledfont_methods[] = {
{ "__eq", scaledfont_eq },
{ "__gc", scaledfont_gc },
{ "extents", scaledfont_extents },
{ "get_ctm", scaledfont_get_ctm },
{ "get_font_face", scaledfont_get_font_face },
{ "get_font_matrix", scaledfont_get_font_matrix },
{ "get_font_options", scaledfont_get_font_options },
#if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 8, 0)
{ "get_scale_matrix", scaledfont_get_scale_matrix },
#endif
{ "get_type", scaledfont_get_type },
{ "glyph_extents", scaledfont_glyph_extents },
{ "text_extents", scaledfont_text_extents },
#if CAIRO_VERSION >= CAIRO_VERSION_ENCODE(1, 8, 0)
{ "text_to_glyphs", scaledfont_text_to_glyphs },
#endif
{ "status", scaledfont_status },
{ 0, 0 }
};
/* vi:set ts=4 sw=4 expandtab: */
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