/* Local function prototypes */
/*===========================================*/
static glBarcode *render_zint (struct zint_symbol *symbol, gboolean text_flag);
-gint module_is_set(struct zint_symbol *symbol, gint y_coord, gint x_coord);
symbol = ZBarcode_Create();
- /* Auto set to default size */
- if ( (w == 0) && (h == 0) )
- {
- w = DEFAULT_W;
- h = DEFAULT_H;
- }
+ /* Auto set to default size */
+ if ( (w == 0) && (h == 0) )
+ {
+ w = DEFAULT_W;
+ h = DEFAULT_H;
+ }
/* Assign type flag. Pre-filter by length for subtypes. */
if (g_ascii_strcasecmp (id, "GS1-128") == 0) {
/* Scale calculated after height, always maintain aspect ratio */
symbol->scale = (w / symbol->width);
- symbol->height = h / symbol->scale; /* height always in standard size */
+ symbol->height = h / symbol->scale; // height always in standard size
+
+ /*
+ * With the size and scale set, send a request to Zint renderer
+ */
+ if (!ZBarcode_Render(symbol, (unsigned int) text_flag)) {
+ ZBarcode_Delete(symbol);
+ g_message("Zint Rendering Error: %s", symbol->errtxt);
+ return NULL;
+ }
/* Convert Sums provided by zint encode */
gbc = render_zint(symbol, text_flag);
/*--------------------------------------------------------------------------
- * PRIVATE. Render to glBarcode the provided Zint symbol.
+ * PRIVATE. Render to glBarcode the provided Zint Rendered Plot
*
- * Based on the SVG output from Zint library, handles lots of otherwise
- * internal Zint code to convert directly to glBarcode representation.
+ * Takes the special zint_render structure and converts to glBarcode.
*
*--------------------------------------------------------------------------*/
static glBarcode *render_zint(struct zint_symbol *symbol, gboolean text_flag) {
- glBarcode *gbc;
- glBarcodeShapeLine *line;
- glBarcodeShapeAlpha *bchar;
-
- gint i, r, block_width, latch, this_row;
- gfloat textpos, large_bar_height, preset_height, row_height, row_posn = 0.0;
- gint error_number = 0;
- gint textoffset, textheight, xoffset, yoffset, textdone, main_width;
- gchar textpart[10], addon[6];
- gint large_bar_count, comp_offset;
- gfloat addon_text_posn;
- gfloat default_text_posn;
- gfloat scaler = symbol->scale;
- gchar *p;
-
- gbc = g_new0(glBarcode, 1);
-
- row_height = 0;
- textdone = 0;
- main_width = symbol->width;
- strcpy(addon, "");
- comp_offset = 0;
- addon_text_posn = 0.0;
+ glBarcode *gbc;
+ glBarcodeLine *line;
+ glBarcodeChar *bchar;
- if (symbol->height < 15) {
- symbol->height = 15;
- }
+ zint_render *render;
+ zint_render_line *zline;
+ zint_render_char *zchar;
- if(text_flag && strlen(symbol->text) != 0) {
- textheight = 9.0;
- textoffset = 2.0;
- } else {
- textheight = textoffset = 0.0;
- }
- /* Update height for texts */
- symbol->height -= textheight + textoffset;
-
- large_bar_count = 0;
- preset_height = 0.0;
- for(i = 0; i < symbol->rows; i++) {
- preset_height += symbol->row_height[i];
- if(symbol->row_height[i] == 0) {
- large_bar_count++;
- }
- }
- large_bar_height = (symbol->height - preset_height) / large_bar_count;
-
- if (large_bar_count == 0) {
- symbol->height = preset_height;
- }
-
- while(!(module_is_set(symbol, symbol->rows - 1, comp_offset))) {
- comp_offset++;
- }
+ render = symbol->rendered;
+ gbc = g_new0(glBarcode, 1);
- xoffset = symbol->border_width + symbol->whitespace_width;
- yoffset = symbol->border_width;
-
- gbc->width = (gdouble) (symbol->width + xoffset + xoffset) * scaler;
- gbc->height = (gdouble) (symbol->height + textheight + textoffset + yoffset + yoffset) * scaler;
-
- default_text_posn = (symbol->height + textoffset + symbol->border_width) * scaler;
-
- if(symbol->symbology != BARCODE_MAXICODE) {
- /* everything else uses rectangles (or squares) */
- /* Works from the bottom of the symbol up */
- int addon_latch = 0;
-
- for(r = 0; r < symbol->rows; r++) {
- this_row = r;
- if(symbol->row_height[this_row] == 0) {
- row_height = large_bar_height;
- } else {
- row_height = symbol->row_height[this_row];
- }
- row_posn = 0;
- for(i = 0; i < r; i++) {
- if(symbol->row_height[i] == 0) {
- row_posn += large_bar_height;
- } else {
- row_posn += symbol->row_height[i];
- }
- }
- row_posn += yoffset;
-
- i = 0;
- if(module_is_set(symbol, this_row, 0)) {
- latch = 1;
- } else {
- latch = 0;
- }
-
- do {
- block_width = 0;
- do {
- block_width++;
- } while (module_is_set(symbol, this_row, i + block_width) == module_is_set(symbol, this_row, i));
- if((addon_latch == 0) && (r == (symbol->rows - 1)) && (i > main_width)) {
- addon_text_posn = (row_posn + 8.0) * scaler;
- addon_latch = 1;
- }
- if(latch == 1) {
- /* a bar */
- line = gl_barcode_shape_line_new ();
-
- line->width = block_width * scaler;
- /* glBarcodeLine centers based on width, counter-act!!! */
- line->x = ((i + xoffset) + (block_width / 2.0)) * scaler;
-
- if(addon_latch == 0) {
- line->y = row_posn * scaler;
- line->length = row_height * scaler;
- } else {
- line->y = (row_posn + 10.0) * scaler;
- line->length = (row_height - 5.0) * scaler;
- }
- latch = 0;
- gl_barcode_add_shape (gbc, (glBarcodeShape *)line);
- } else {
- /* a space */
- latch = 1;
- }
- i += block_width;
-
- } while (i < symbol->width);
- }
+ /*
+ * Go through each line, alter the x position for centering, and add.
+ * Zint already applies the scaling factor.
+ */
+ zline = render->lines;
+ while (zline) {
+ line = g_new0 (glBarcodeLine, 1);
+
+ line->width = (double) zline->width;
+ line->length = (double) zline->length;
+ /* glBarcodeLine centers based on width, counter-act!!! */
+ line->x = (double) (zline->x + (zline->width / 2.0));
+ line->y = (double) zline->y;
+
+ gbc->lines = g_list_append (gbc->lines, line);
}
- /* That's done the actual data area, everything else is human-friendly */
-
-
- /* Add the text */
- xoffset -= comp_offset;
+ /*
+ * Repeat loop for characters
+ */
+ zchar = render->chars;
if (text_flag) {
- /* caculate start xoffset to center text */
- xoffset = symbol->width / 2.0;
- xoffset -= (strlen(symbol->text) / 2) * 5.0;
-
- for (p = symbol->text; *p != 0; p++) {
- if (p != (gchar *)symbol->text && *p == '(') xoffset += 3.0;
- bchar = gl_barcode_shape_alpha_new ();
- bchar->x = (textpos + xoffset) * scaler;
- bchar->y = default_text_posn;
- bchar->fsize = 8.0 * scaler;
- bchar->c = (gchar) *p;
- gl_barcode_add_shape (gbc, (glBarcodeShape *)bchar);
- /* Poor mans kerning */
- if (*p == '(') {
- xoffset += 3.0;
- } else if (*p == ')') {
- xoffset += 3.0;
- } else {
- xoffset += 5.0;
- }
+ while (zchar) {
+ bchar = g_new0 (glBarcodeChar, 1);
+ bchar->x = (double) zchar->x;
+ bchar->y = (double) zchar->y;
+ bchar->fsize = (double) zchar->fsize;
+ bchar->c = (gchar) zchar->c;
+ gbc->chars = g_list_append (gbc->chars, bchar);
+ zchar = zchar->next;
}
}
- return gbc;
-}
+ /*
+ * Finally add complete sizes
+ */
+ gbc->width = (gdouble) render->width;
+ gbc->height = (gdouble) render->height;
-/*
- * Stolen from Zint common.c
- */
-gint module_is_set(struct zint_symbol *symbol, gint y_coord, gint x_coord)
-{
- return (symbol->encoded_data[y_coord][x_coord / 7] & (1 << (x_coord % 7))) ? 1 : 0;
+
+ return gbc;
}
#endif /* HAVE_LIBZINT */
projects / glabels / commitdiff