--- /dev/null
+/*
+ +----------------------------------------------------------------------+
+ | PHP version 4.0 |
+ +----------------------------------------------------------------------+
+ | Copyright (c) 1997, 1998, 1999 The PHP Group |
+ +----------------------------------------------------------------------+
+ | This source file is subject to version 2.0 of the PHP license, |
+ | that is bundled with this package in the file LICENSE, and is |
+ | available at through the world-wide-web at |
+ | http://www.php.net/license/2_0.txt. |
+ | If you did not receive a copy of the PHP license and are unable to |
+ | obtain it through the world-wide-web, please send a note to |
+ | license@php.net so we can mail you a copy immediately. |
+ +----------------------------------------------------------------------+
+ | Authors: Jouni Ahto <jah@mork.net> |
+ | |
+ +----------------------------------------------------------------------+
+ */
+
+/* $Id$ */
+
+void _php3_free_ps_font(gd_ps_font *f_ind)
+{
+ T1_DeleteFont(f_ind->font_id);
+ efree(f_ind);
+}
+
+void _php3_free_ps_enc(char **enc)
+{
+ T1_DeleteEncoding(enc);
+}
+
+/* {{{ proto int imagepsloadfont(string pathname)
+Load a new font from specified file */
+void php3_imagepsloadfont(INTERNAL_FUNCTION_PARAMETERS) {
+ pval *file;
+ int l_ind;
+ gd_ps_font *f_ind;
+
+ if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &file) == FAILURE) {
+ WRONG_PARAM_COUNT;
+ }
+
+ convert_to_string(file);
+
+ f_ind = emalloc(sizeof(gd_ps_font));
+ f_ind->font_id = T1_AddFont(file->value.str.val);
+
+ if (f_ind->font_id < 0) {
+ l_ind = f_ind->font_id;
+ efree(f_ind);
+ switch (l_ind) {
+ case -1:
+ php3_error(E_WARNING, "Couldn't find the font file");
+ RETURN_FALSE;
+ break;
+ case -2:
+ case -3:
+ php3_error(E_WARNING, "Memory allocation fault in t1lib");
+ RETURN_FALSE;
+ break;
+ default:
+ php3_error(E_WARNING, "An unknown error occurred in t1lib");
+ RETURN_FALSE;
+ break;
+ }
+ }
+
+ T1_LoadFont(f_ind->font_id);
+ f_ind->extend = 1;
+ l_ind = php3_list_insert(f_ind, GD_GLOBAL(le_ps_font));
+ RETURN_LONG(l_ind);
+}
+/* }}} */
+
+/* {{{ The function in t1lib which this function uses seem to be buggy...
+proto int imagepscopyfont(int font_index)
+Make a copy of a font for purposes like extending or reenconding */
+/*
+void php3_imagepscopyfont(INTERNAL_FUNCTION_PARAMETERS) {
+ pval *fnt;
+ int l_ind, type;
+ gd_ps_font *nf_ind, *of_ind;
+
+ if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &fnt) == FAILURE) {
+ WRONG_PARAM_COUNT;
+ }
+
+ convert_to_long(fnt);
+
+ of_ind = php3_list_find(fnt->value.lval, &type);
+
+ if (type != GD_GLOBAL(le_ps_font)) {
+ php3_error(E_WARNING, "%d is not a Type 1 font index", fnt->value.lval);
+ RETURN_FALSE;
+ }
+
+ nf_ind = emalloc(sizeof(gd_ps_font));
+ nf_ind->font_id = T1_CopyFont(of_ind->font_id);
+
+ if (nf_ind->font_id < 0) {
+ l_ind = nf_ind->font_id;
+ efree(nf_ind);
+ switch (l_ind) {
+ case -1:
+ php3_error(E_WARNING, "FontID %d is not loaded in memory", l_ind);
+ RETURN_FALSE;
+ break;
+ case -2:
+ php3_error(E_WARNING, "Tried to copy a logical font");
+ RETURN_FALSE;
+ break;
+ case -3:
+ php3_error(E_WARNING, "Memory allocation fault in t1lib");
+ RETURN_FALSE;
+ break;
+ default:
+ php3_error(E_WARNING, "An unknown error occurred in t1lib");
+ RETURN_FALSE;
+ break;
+ }
+ }
+
+ nf_ind->extend = 1;
+ l_ind = php3_list_insert(nf_ind, GD_GLOBAL(le_ps_font));
+ RETURN_LONG(l_ind);
+}
+*/
+/* }}} */
+
+/* {{{ proto bool imagepsfreefont(int font_index)
+Free memory used by a font */
+void php3_imagepsfreefont(INTERNAL_FUNCTION_PARAMETERS) {
+ pval *fnt;
+ int type;
+
+ if (ARG_COUNT(ht) != 1 || getParameters(ht, 1, &fnt) == FAILURE) {
+ WRONG_PARAM_COUNT;
+ }
+
+ convert_to_long(fnt);
+
+ php3_list_find(fnt->value.lval, &type);
+
+ if (type != GD_GLOBAL(le_ps_font)) {
+ php3_error(E_WARNING, "%d is not a Type 1 font index", fnt->value.lval);
+ RETURN_FALSE;
+ }
+
+ php3_list_delete(fnt->value.lval);
+ RETURN_TRUE;
+}
+/* }}} */
+
+/* {{{ proto bool imagepsencodefont(int font_index, string filename)
+To change a fonts character encoding vector */
+void php3_imagepsencodefont(INTERNAL_FUNCTION_PARAMETERS) {
+ pval *fnt, *enc;
+ char **enc_vector;
+ int type;
+ gd_ps_font *f_ind;
+
+ if (ARG_COUNT(ht) != 2 || getParameters(ht, 2, &fnt, &enc) == FAILURE) {
+ WRONG_PARAM_COUNT;
+ }
+
+ convert_to_long(fnt);
+ convert_to_string(enc);
+
+ f_ind = php3_list_find(fnt->value.lval, &type);
+
+ if (type != GD_GLOBAL(le_ps_font)) {
+ php3_error(E_WARNING, "%d is not a Type 1 font index", fnt->value.lval);
+ RETURN_FALSE;
+ }
+
+ if ((enc_vector = T1_LoadEncoding(enc->value.str.val)) == NULL) {
+ php3_error(E_WARNING, "Couldn't load encoding vector from %s", enc->value.str.val);
+ RETURN_FALSE;
+ }
+
+ T1_DeleteAllSizes(f_ind->font_id);
+ if (T1_ReencodeFont(f_ind->font_id, enc_vector)) {
+ T1_DeleteEncoding(enc_vector);
+ php3_error(E_WARNING, "Couldn't reencode font");
+ RETURN_FALSE;
+ }
+ php3_list_insert(enc_vector, GD_GLOBAL(le_ps_enc));
+ RETURN_TRUE;
+}
+/* }}} */
+
+/* {{{ proto bool imagepsextendfont(int font_index, double extend)
+Extend or or condense (if extend < 1) a font */
+void php3_imagepsextendfont(INTERNAL_FUNCTION_PARAMETERS) {
+ pval *fnt, *ext;
+ int type;
+ gd_ps_font *f_ind;
+
+ if (ARG_COUNT(ht) != 2 || getParameters(ht, 2, &fnt, &ext) == FAILURE) {
+ WRONG_PARAM_COUNT;
+ }
+
+ convert_to_long(fnt);
+ convert_to_double(ext);
+
+ f_ind = php3_list_find(fnt->value.lval, &type);
+
+ if (type != GD_GLOBAL(le_ps_font)) {
+ php3_error(E_WARNING, "%d is not a Type 1 font index", fnt->value.lval);
+ RETURN_FALSE;
+ }
+
+ if (T1_ExtendFont(f_ind->font_id, ext->value.dval) != 0) RETURN_FALSE;
+ f_ind->extend = ext->value.dval;
+ RETURN_TRUE;
+}
+/* }}} */
+
+/* {{{ proto bool imagepsslantfont(int font_index, double slant)
+Slant a font */
+void php3_imagepsslantfont(INTERNAL_FUNCTION_PARAMETERS) {
+ pval *fnt, *slt;
+ int type;
+ gd_ps_font*f_ind;
+
+ if (ARG_COUNT(ht) != 2 || getParameters(ht, 2, &fnt, &slt) == FAILURE) {
+ WRONG_PARAM_COUNT;
+ }
+
+ convert_to_long(fnt);
+ convert_to_double(slt);
+
+ f_ind = php3_list_find(fnt->value.lval, &type);
+
+ if (type != GD_GLOBAL(le_ps_font)) {
+ php3_error(E_WARNING, "%d is not a Type 1 font index", fnt->value.lval);
+ RETURN_FALSE;
+ }
+
+ if (T1_SlantFont(f_ind->font_id, slt->value.dval) != 0) RETURN_FALSE;
+ RETURN_TRUE;
+}
+/* }}} */
+
+/* {{{ proto array imagepstext(int image, string text, int font, int size, int xcoord, int ycoord [, int space, int tightness, double angle, int antialias])
+Rasterize a string over an image */
+void php3_imagepstext(INTERNAL_FUNCTION_PARAMETERS) {
+ pval *img, *str, *fnt, *sz, *fg, *bg, *sp, *px, *py, *aas, *wd, *ang;
+ int i, j, x, y;
+ int space, type;
+ gd_ps_font *f_ind;
+ int h_lines, v_lines, c_ind;
+ int rd, gr, bl, fg_rd, fg_gr, fg_bl, bg_rd, bg_gr, bg_bl;
+ int aa[16], aa_steps;
+ int width, amount_kern, add_width;
+ double angle;
+ unsigned long aa_greys[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
+ gdImagePtr bg_img;
+ GLYPH *str_img;
+#ifdef HAVE_LIBT1_OUTLINE
+ T1_OUTLINE *char_path, *str_path;
+ T1_TMATRIX *transform = NULL;
+#endif
+
+ switch(ARG_COUNT(ht)) {
+ case 8:
+ if (getParameters(ht, 8, &img, &str, &fnt, &sz, &fg, &bg, &px, &py) == FAILURE) {
+ RETURN_FALSE;
+ }
+ convert_to_string(str);
+ convert_to_long(fnt);
+ convert_to_long(sz);
+ convert_to_long(fg);
+ convert_to_long(bg);
+ convert_to_long(px);
+ convert_to_long(py);
+ x = px->value.lval;
+ y = py->value.lval;
+ space = 0;
+ aa_steps = 4;
+ width = 0;
+ angle = 0;
+ break;
+ case 12:
+ if (getParameters(ht, 12, &img, &str, &fnt, &sz, &fg, &bg, &px, &py, &sp, &wd, &ang, &aas) == FAILURE) {
+ RETURN_FALSE;
+ }
+ convert_to_string(str);
+ convert_to_long(fnt);
+ convert_to_long(sz);
+ convert_to_long(sp);
+ convert_to_long(fg);
+ convert_to_long(bg);
+ convert_to_long(px);
+ convert_to_long(py);
+ x = px->value.lval;
+ y = py->value.lval;
+ convert_to_long(sp);
+ space = sp->value.lval;
+ convert_to_long(aas);
+ aa_steps = aas->value.lval;
+ convert_to_long(wd);
+ width = wd->value.lval;
+ convert_to_double(ang);
+ angle = ang->value.dval;
+ break;
+ default:
+ WRONG_PARAM_COUNT;
+ }
+
+ bg_img = php3_list_find(img->value.lval, &type);
+
+ if (!bg_img || type != GD_GLOBAL(le_gd)) {
+ php3_error(E_WARNING, "Unable to find image pointer");
+ RETURN_FALSE;
+ }
+
+ f_ind = php3_list_find(fnt->value.lval, &type);
+
+ if (!f_ind || type != GD_GLOBAL(le_ps_font)) {
+ php3_error(E_WARNING, "%d is not a Type 1 font index", fnt->value.lval);
+ RETURN_FALSE;
+ }
+
+ fg_rd = gdImageRed(bg_img, fg->value.lval);
+ fg_gr = gdImageGreen(bg_img, fg->value.lval);
+ fg_bl = gdImageBlue(bg_img, fg->value.lval);
+ bg_rd = gdImageRed(bg_img, bg->value.lval);
+ bg_gr = gdImageGreen(bg_img, bg->value.lval);
+ bg_bl = gdImageBlue(bg_img, bg->value.lval);
+
+ for (i = 0; i < aa_steps; i++) {
+ rd = bg_rd+(double)(fg_rd-bg_rd)/aa_steps*(i+1);
+ gr = bg_gr+(double)(fg_gr-bg_gr)/aa_steps*(i+1);
+ bl = bg_bl+(double)(fg_bl-bg_bl)/aa_steps*(i+1);
+ aa[i] = gdImageColorResolve(bg_img, rd, gr, bl);
+ }
+
+ T1_AASetBitsPerPixel(8);
+
+ switch (aa_steps) {
+ case 4:
+ T1_AASetGrayValues(0, 1, 2, 3, 4);
+ T1_AASetLevel(T1_AA_LOW);
+ break;
+ case 16:
+ T1_AAHSetGrayValues(aa_greys);
+ T1_AASetLevel(T1_AA_HIGH);
+ break;
+ default:
+ php3_error(E_WARNING, "Invalid value %d as number of steps for antialiasing", aa_steps);
+ RETURN_FALSE;
+ }
+
+ if (angle) {
+ transform = T1_RotateMatrix(NULL, angle);
+ }
+
+ if (width) {
+#ifdef HAVE_LIBT1_OUTLINE
+ str_path = T1_GetCharOutline(f_ind->font_id, str->value.str.val[0], sz->value.lval, transform);
+
+ for (i = 1; i < str->value.str.len; i++) {
+ amount_kern = (int) T1_GetKerning(f_ind->font_id, str->value.str.val[i-1], str->value.str.val[i]);
+ amount_kern += str->value.str.val[i-1] == ' ' ? space : 0;
+ add_width = (int) (amount_kern+width)/f_ind->extend;
+
+ char_path = T1_GetMoveOutline(f_ind->font_id, add_width, 0, 0, sz->value.lval, transform);
+ str_path = T1_ConcatOutlines(str_path, char_path);
+
+ char_path = T1_GetCharOutline(f_ind->font_id, str->value.str.val[i], sz->value.lval, transform);
+ str_path = T1_ConcatOutlines(str_path, char_path);
+ }
+ str_img = T1_AAFillOutline(str_path, 0);
+#else
+ php3_error(E_WARNING, "Setting space between characters in function ImagePSText is supported only with t1lib version 0.9 or above");
+ RETURN_FALSE;
+#endif
+ } else {
+ str_img = T1_AASetString(f_ind->font_id, str->value.str.val, str->value.str.len,
+ space, T1_KERNING, sz->value.lval, transform);
+ }
+
+ if (T1_errno) RETURN_FALSE;
+
+ h_lines = str_img->metrics.ascent - str_img->metrics.descent;
+ v_lines = str_img->metrics.rightSideBearing - str_img->metrics.leftSideBearing;
+
+ for (i = 0; i < v_lines; i++) {
+ for (j = 0; j < h_lines; j++) {
+ switch (str_img->bits[j*v_lines+i]) {
+ case 0:
+ break;
+ default:
+ c_ind = aa[str_img->bits[j*v_lines+i]-1];
+ gdImageSetPixel(bg_img, x+str_img->metrics.leftSideBearing+i, y-str_img->metrics.ascent+j, c_ind);
+ }
+ }
+ }
+
+ if (array_init(return_value) == FAILURE) {
+ RETURN_FALSE;
+ }
+
+ add_next_index_long(return_value, str_img->metrics.leftSideBearing);
+ add_next_index_long(return_value, str_img->metrics.descent);
+ add_next_index_long(return_value, str_img->metrics.rightSideBearing);
+ add_next_index_long(return_value, str_img->metrics.ascent);
+
+}
+/* }}} */
+
+/* {{{ proto array imagepsbbox(string text, int font, int size[, int space, int tightness, int angle])
+Return the bounding box needed by a string if rasterized */
+void php3_imagepsbbox(INTERNAL_FUNCTION_PARAMETERS) {
+ pval *str, *fnt, *sz, *sp, *wd, *ang;
+ int i, space, add_width, char_width, amount_kern, type;
+ int cur_x, cur_y, dx, dy;
+ int x1, y1, x2, y2, x3, y3, x4, y4;
+ gd_ps_font *f_ind;
+ int per_char = 0;
+ double angle, sin_a, cos_a;
+ BBox char_bbox, str_bbox = {0, 0, 0, 0};
+
+ switch(ARG_COUNT(ht)) {
+ case 3:
+ if (getParameters(ht, 3, &str, &fnt, &sz) == FAILURE) {
+ RETURN_FALSE;
+ }
+ convert_to_string(str);
+ convert_to_long(fnt);
+ convert_to_long(sz);
+ space = 0;
+ break;
+ case 6:
+ if (getParameters(ht, 6, &str, &fnt, &sz, &sp, &wd, &ang) == FAILURE) {
+ RETURN_FALSE;
+ }
+ convert_to_string(str);
+ convert_to_long(fnt);
+ convert_to_long(sz);
+ convert_to_long(sp);
+ space = sp->value.lval;
+ convert_to_long(wd);
+ add_width = wd->value.lval;
+ convert_to_double(ang);
+ angle = ang->value.dval * M_PI / 180;
+ sin_a = sin(angle);
+ cos_a = cos(angle);
+ per_char = add_width || angle ? 1 : 0;
+ break;
+ default:
+ WRONG_PARAM_COUNT;
+ }
+
+ f_ind = php3_list_find(fnt->value.lval, &type);
+
+ if (type != GD_GLOBAL(le_ps_font)) {
+ php3_error(E_WARNING, "%d is not a Type 1 font index", fnt->value.lval);
+ RETURN_FALSE;
+ }
+
+#define max(a, b) (a > b ? a : b)
+#define min(a, b) (a < b ? a : b)
+#define new_x(a, b) (int) ((a) * cos_a - (b) * sin_a)
+#define new_y(a, b) (int) ((a) * sin_a + (b) * cos_a)
+
+ if (per_char) {
+ space += T1_GetCharWidth(f_ind->font_id, ' ');
+ cur_x = cur_y = 0;
+
+ for (i = 0; i < str->value.str.len; i++) {
+ if (str->value.str.val[i] == ' ') {
+ char_bbox.llx = char_bbox.lly = char_bbox.ury = 0;
+ char_bbox.urx = char_width = space;
+ } else {
+ char_bbox = T1_GetCharBBox(f_ind->font_id, str->value.str.val[i]);
+ char_width = T1_GetCharWidth(f_ind->font_id, str->value.str.val[i]);
+ }
+ amount_kern = i ? T1_GetKerning(f_ind->font_id, str->value.str.val[i-1], str->value.str.val[i]) : 0;
+
+ /* Transfer character bounding box to right place */
+ x1 = new_x(char_bbox.llx, char_bbox.lly) + cur_x;
+ y1 = new_y(char_bbox.llx, char_bbox.lly) + cur_y;
+ x2 = new_x(char_bbox.llx, char_bbox.ury) + cur_x;
+ y2 = new_y(char_bbox.llx, char_bbox.ury) + cur_y;
+ x3 = new_x(char_bbox.urx, char_bbox.ury) + cur_x;
+ y3 = new_y(char_bbox.urx, char_bbox.ury) + cur_y;
+ x4 = new_x(char_bbox.urx, char_bbox.lly) + cur_x;
+ y4 = new_y(char_bbox.urx, char_bbox.lly) + cur_y;
+
+ /* Find min & max values and compare them with current bounding box */
+ str_bbox.llx = min(str_bbox.llx, min(x1, min(x2, min(x3, x4))));
+ str_bbox.lly = min(str_bbox.lly, min(y1, min(y2, min(y3, y4))));
+ str_bbox.urx = max(str_bbox.urx, max(x1, max(x2, max(x3, x4))));
+ str_bbox.ury = max(str_bbox.ury, max(y1, max(y2, max(y3, y4))));
+
+ /* Move to the next base point */
+ dx = new_x(char_width + add_width + amount_kern, 0);
+ dy = new_y(char_width + add_width + amount_kern, 0);
+ cur_x += dx;
+ cur_y += dy;
+ /*
+ printf("%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\n", x1, y1, x2, y2, x3, y3, x4, y4, char_bbox.llx, char_bbox.lly, char_bbox.urx, char_bbox.ury, char_width, amount_kern, cur_x, cur_y, dx, dy);
+ */
+ }
+
+ } else {
+ str_bbox = T1_GetStringBBox(f_ind->font_id, str->value.str.val, str->value.str.len, space, T1_KERNING);
+ }
+ if (T1_errno) RETURN_FALSE;
+
+ if (array_init(return_value) == FAILURE) {
+ RETURN_FALSE;
+ }
+ /*
+ printf("%d %d %d %d\n", str_bbox.llx, str_bbox.lly, str_bbox.urx, str_bbox.ury);
+ */
+ add_next_index_long(return_value, (int) ceil(((double) str_bbox.llx)*sz->value.lval/1000));
+ add_next_index_long(return_value, (int) ceil(((double) str_bbox.lly)*sz->value.lval/1000));
+ add_next_index_long(return_value, (int) ceil(((double) str_bbox.urx)*sz->value.lval/1000));
+ add_next_index_long(return_value, (int) ceil(((double) str_bbox.ury)*sz->value.lval/1000));
+}
+/* }}} */
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
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