mirror of
https://git.code.sf.net/p/zint/code
synced 2025-05-30 23:05:23 -04:00
Add bold text option for PNG
Fixes #26 Code patch by Christoph Scharenberg
This commit is contained in:
Robin Stuart
parent
d2774af120
commit
e0240c8e2e
3 changed files with 137 additions and 45 deletions
176
backend/png.c
176
backend/png.c
|
|
@ -549,19 +549,24 @@ void draw_hexagon(char *pixelbuf, int image_width, int xposn, int yposn) {
|
|||
}
|
||||
}
|
||||
|
||||
void draw_letter(char *pixelbuf, unsigned char letter, int xposn, int yposn, int smalltext, int image_width, int image_height) {
|
||||
void draw_letter(char *pixelbuf, unsigned char letter, int xposn, int yposn, int textflags, int image_width, int image_height) {
|
||||
/* Put a letter into a position */
|
||||
int skip, x, y, glyph_no;
|
||||
int skip, x, y, glyph_no, max_x, max_y;
|
||||
|
||||
skip = 0;
|
||||
|
||||
if (letter < 33) {
|
||||
skip = 1;
|
||||
}
|
||||
|
||||
if ((letter > 127) && (letter < 161)) {
|
||||
skip = 1;
|
||||
}
|
||||
|
||||
if (xposn < 0 || yposn < 0) {
|
||||
skip = 1;
|
||||
}
|
||||
|
||||
if (skip == 0) {
|
||||
if (letter > 128) {
|
||||
glyph_no = letter - 66;
|
||||
|
|
@ -570,38 +575,116 @@ void draw_letter(char *pixelbuf, unsigned char letter, int xposn, int yposn, int
|
|||
}
|
||||
|
||||
|
||||
if (smalltext) {
|
||||
for (y = 0; y < 9; y++) {
|
||||
for (x = 0; x < 5; x++) {
|
||||
if (small_font[(glyph_no * 9) + y] & (0x10 >> x)) {
|
||||
*(pixelbuf + (y * image_width) + (yposn * image_width) + xposn + x) = '1';
|
||||
}
|
||||
}
|
||||
}
|
||||
} else {
|
||||
for (y = 0; y < 14; y++) {
|
||||
for (x = 0; x < 7; x++) {
|
||||
if (ascii_font[(glyph_no * 14) + y] & (0x40 >> x)) {
|
||||
*(pixelbuf + (y * image_width) + (yposn * image_width) + xposn + x) = '1';
|
||||
}
|
||||
}
|
||||
}
|
||||
switch (textflags) {
|
||||
case 1: // small font 5x9
|
||||
max_x = 5;
|
||||
max_y = 9;
|
||||
|
||||
if (xposn + max_x >= image_width) {
|
||||
max_x = image_width - xposn - 1;
|
||||
}
|
||||
|
||||
if (yposn + max_y >= image_height) {
|
||||
max_y = image_height - yposn - 1;
|
||||
}
|
||||
|
||||
for (y = 0; y < max_y; y++) {
|
||||
for (x = 0; x < max_x; x++) {
|
||||
if (small_font[(glyph_no * 9) + y] & (0x10 >> x)) {
|
||||
*(pixelbuf + (y * image_width) + (yposn * image_width) + xposn + x) = '1';
|
||||
}
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case 2: // bold font -> twice the regular font
|
||||
{
|
||||
max_x = 7;
|
||||
max_y = 14;
|
||||
|
||||
if (xposn + max_x + 1 >= image_width) {
|
||||
max_x = image_width - xposn - 2;
|
||||
}
|
||||
|
||||
if (yposn + max_y >= image_height) {
|
||||
max_y = image_height - yposn - 1;
|
||||
}
|
||||
|
||||
char * linePtr = pixelbuf + (yposn * image_width) + xposn + 1;
|
||||
for (y = 0; y < max_y; y++) {
|
||||
char * pixelPtr = linePtr;
|
||||
int extra_dot = 0;
|
||||
for (x = 0; x < 7; x++) {
|
||||
if (ascii_font[(glyph_no * 14) + y] & (0x40 >> x)) {
|
||||
*pixelPtr = '1';
|
||||
extra_dot = 1;
|
||||
} else {
|
||||
if (extra_dot) {
|
||||
*pixelPtr = '1';
|
||||
}
|
||||
|
||||
extra_dot = 0;
|
||||
}
|
||||
|
||||
++pixelPtr;
|
||||
}
|
||||
|
||||
if (extra_dot) {
|
||||
*pixelPtr = '1';
|
||||
}
|
||||
|
||||
linePtr += image_width;
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
default: // regular font 7x15
|
||||
max_x = 7;
|
||||
max_y = 14;
|
||||
|
||||
if (xposn + max_x >= image_width) {
|
||||
max_x = image_width - xposn - 1;
|
||||
}
|
||||
|
||||
if (yposn + max_y >= image_height) {
|
||||
max_y = image_height - yposn - 1;
|
||||
}
|
||||
|
||||
for (y = 0; y < max_y; y++) {
|
||||
for (x = 0; x < 7; x++) {
|
||||
if (ascii_font[(glyph_no * 14) + y] & (0x40 >> x)) {
|
||||
*(pixelbuf + (y * image_width) + (yposn * image_width) + xposn + x) = '1';
|
||||
}
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Plot a string into the pixel buffer */
|
||||
void draw_string(char *pixbuf, char input_string[], int xposn, int yposn, int smalltext, int image_width, int image_height) {
|
||||
void draw_string(char *pixbuf, char input_string[], int xposn, int yposn, int textflags, int image_width, int image_height) {
|
||||
int i, string_length, string_left_hand, letter_width = 7;
|
||||
|
||||
if (smalltext != 0) {
|
||||
letter_width = 5;
|
||||
switch (textflags) {
|
||||
case 1: // small font 5x9
|
||||
letter_width = 5;
|
||||
break;
|
||||
|
||||
case 2: // bold font -> width of the regular font + 1 extra dot + 1 extra space
|
||||
letter_width = 9;
|
||||
break;
|
||||
|
||||
default: // regular font 7x15
|
||||
letter_width = 7;
|
||||
break;
|
||||
}
|
||||
|
||||
string_length = strlen(input_string);
|
||||
string_left_hand = xposn - ((letter_width * string_length) / 2);
|
||||
|
||||
for (i = 0; i < string_length; i++) {
|
||||
draw_letter(pixbuf, input_string[i], string_left_hand + (i * letter_width), yposn, smalltext, image_width, image_height);
|
||||
draw_letter(pixbuf, input_string[i], string_left_hand + (i * letter_width), yposn, textflags, image_width, image_height);
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -708,7 +791,7 @@ int png_plot(struct zint_symbol *symbol, int rotate_angle, int data_type) {
|
|||
float addon_text_posn, preset_height, large_bar_height;
|
||||
int i, r, textoffset, yoffset, xoffset, latch, image_width, image_height;
|
||||
char *pixelbuf;
|
||||
int addon_latch = 0, smalltext = 0;
|
||||
int addon_latch = 0, textflags = 0;
|
||||
int this_row, block_width, plot_height, plot_yposn, textpos;
|
||||
float row_height, row_posn;
|
||||
int error_number;
|
||||
|
|
@ -758,7 +841,10 @@ int png_plot(struct zint_symbol *symbol, int rotate_angle, int data_type) {
|
|||
addon_text_posn = 0.0;
|
||||
row_height = 0;
|
||||
if (symbol->output_options & SMALL_TEXT) {
|
||||
smalltext = 1;
|
||||
textflags = 1;
|
||||
}
|
||||
else if (symbol->output_options & BOLD_TEXT) {
|
||||
textflags = 2;
|
||||
}
|
||||
|
||||
if (symbol->height == 0) {
|
||||
|
|
@ -926,22 +1012,22 @@ int png_plot(struct zint_symbol *symbol, int rotate_angle, int data_type) {
|
|||
textpart[4] = '\0';
|
||||
textpos = 2 * (17 + xoffset);
|
||||
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
|
||||
for (i = 0; i < 4; i++) {
|
||||
textpart[i] = local_text[i + 4];
|
||||
}
|
||||
textpart[4] = '\0';
|
||||
textpos = 2 * (50 + xoffset);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
|
||||
textdone = 1;
|
||||
switch (strlen(addon)) {
|
||||
case 2:
|
||||
textpos = 2 * (xoffset + 86);
|
||||
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, textflags, image_width, image_height);
|
||||
break;
|
||||
case 5:
|
||||
textpos = 2 * (xoffset + 100);
|
||||
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, textflags, image_width, image_height);
|
||||
break;
|
||||
}
|
||||
|
||||
|
|
@ -959,28 +1045,28 @@ int png_plot(struct zint_symbol *symbol, int rotate_angle, int data_type) {
|
|||
textpart[0] = local_text[0];
|
||||
textpart[1] = '\0';
|
||||
textpos = 2 * (-7 + xoffset);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
|
||||
for (i = 0; i < 6; i++) {
|
||||
textpart[i] = local_text[i + 1];
|
||||
}
|
||||
textpart[6] = '\0';
|
||||
textpos = 2 * (24 + xoffset);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
|
||||
for (i = 0; i < 6; i++) {
|
||||
textpart[i] = local_text[i + 7];
|
||||
}
|
||||
textpart[6] = '\0';
|
||||
textpos = 2 * (71 + xoffset);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
|
||||
textdone = 1;
|
||||
switch (strlen(addon)) {
|
||||
case 2:
|
||||
textpos = 2 * (xoffset + 114);
|
||||
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, textflags, image_width, image_height);
|
||||
break;
|
||||
case 5:
|
||||
textpos = 2 * (xoffset + 128);
|
||||
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, textflags, image_width, image_height);
|
||||
break;
|
||||
}
|
||||
break;
|
||||
|
|
@ -1030,32 +1116,32 @@ int png_plot(struct zint_symbol *symbol, int rotate_angle, int data_type) {
|
|||
textpart[0] = local_text[0];
|
||||
textpart[1] = '\0';
|
||||
textpos = 2 * (-5 + xoffset);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
|
||||
for (i = 0; i < 5; i++) {
|
||||
textpart[i] = local_text[i + 1];
|
||||
}
|
||||
textpart[5] = '\0';
|
||||
textpos = 2 * (27 + xoffset);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
|
||||
for (i = 0; i < 5; i++) {
|
||||
textpart[i] = local_text[i + 6];
|
||||
}
|
||||
textpart[6] = '\0';
|
||||
textpos = 2 * (68 + xoffset);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
|
||||
textpart[0] = local_text[11];
|
||||
textpart[1] = '\0';
|
||||
textpos = 2 * (100 + xoffset);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
|
||||
textdone = 1;
|
||||
switch (strlen(addon)) {
|
||||
case 2:
|
||||
textpos = 2 * (xoffset + 116);
|
||||
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, textflags, image_width, image_height);
|
||||
break;
|
||||
case 5:
|
||||
textpos = 2 * (xoffset + 130);
|
||||
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, textflags, image_width, image_height);
|
||||
break;
|
||||
}
|
||||
|
||||
|
|
@ -1072,26 +1158,26 @@ int png_plot(struct zint_symbol *symbol, int rotate_angle, int data_type) {
|
|||
textpart[0] = local_text[0];
|
||||
textpart[1] = '\0';
|
||||
textpos = 2 * (-5 + xoffset);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
|
||||
for (i = 0; i < 6; i++) {
|
||||
textpart[i] = local_text[i + 1];
|
||||
}
|
||||
textpart[6] = '\0';
|
||||
textpos = 2 * (24 + xoffset);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
|
||||
textpart[0] = local_text[7];
|
||||
textpart[1] = '\0';
|
||||
textpos = 2 * (55 + xoffset);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, textpart, textpos, default_text_posn, textflags, image_width, image_height);
|
||||
textdone = 1;
|
||||
switch (strlen(addon)) {
|
||||
case 2:
|
||||
textpos = 2 * (xoffset + 70);
|
||||
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, textflags, image_width, image_height);
|
||||
break;
|
||||
case 5:
|
||||
textpos = 2 * (xoffset + 84);
|
||||
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, addon, textpos, image_height - (addon_text_posn * 2) - 13, textflags, image_width, image_height);
|
||||
break;
|
||||
}
|
||||
|
||||
|
|
@ -1123,7 +1209,7 @@ int png_plot(struct zint_symbol *symbol, int rotate_angle, int data_type) {
|
|||
/* Put the human readable text at the bottom */
|
||||
if ((textdone == 0) && (ustrlen(local_text) != 0)) {
|
||||
textpos = (image_width / 2);
|
||||
draw_string(pixelbuf, (char*) local_text, textpos, default_text_posn, smalltext, image_width, image_height);
|
||||
draw_string(pixelbuf, (char*) local_text, textpos, default_text_posn, textflags, image_width, image_height);
|
||||
}
|
||||
|
||||
error_number = png_to_file(symbol, image_height, image_width, pixelbuf, rotate_angle, data_type);
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue