|
|
2b6473 |
diff --git a/src/libpaps.c b/src/libpaps.c
|
|
|
2b6473 |
index b6363a7..1b80257 100644
|
|
|
2b6473 |
--- a/src/libpaps.c
|
|
|
2b6473 |
+++ b/src/libpaps.c
|
|
|
2b6473 |
@@ -55,6 +55,9 @@ typedef struct {
|
|
|
2b6473 |
double last_pos_x;
|
|
|
2b6473 |
double scale_x;
|
|
|
2b6473 |
double scale_y;
|
|
|
2b6473 |
+ double width;
|
|
|
2b6473 |
+ double height;
|
|
|
2b6473 |
+ double cpi;
|
|
|
2b6473 |
} paps_private_t;
|
|
|
2b6473 |
|
|
|
2b6473 |
|
|
|
2b6473 |
@@ -88,6 +91,26 @@ paps_t *paps_new()
|
|
|
2b6473 |
}
|
|
|
2b6473 |
|
|
|
2b6473 |
void
|
|
|
2b6473 |
+paps_set_paper_size(paps_t *paps_,
|
|
|
2b6473 |
+ gdouble width,
|
|
|
2b6473 |
+ gdouble height)
|
|
|
2b6473 |
+{
|
|
|
2b6473 |
+ paps_private_t *paps = (paps_private_t *)paps_;
|
|
|
2b6473 |
+
|
|
|
2b6473 |
+ paps->width = width;
|
|
|
2b6473 |
+ paps->height = height;
|
|
|
2b6473 |
+}
|
|
|
2b6473 |
+
|
|
|
2b6473 |
+void
|
|
|
2b6473 |
+paps_set_cpi(paps_t *paps_,
|
|
|
2b6473 |
+ gdouble cpi)
|
|
|
2b6473 |
+{
|
|
|
2b6473 |
+ paps_private_t *paps = (paps_private_t *)paps_;
|
|
|
2b6473 |
+
|
|
|
2b6473 |
+ paps->cpi = cpi;
|
|
|
2b6473 |
+}
|
|
|
2b6473 |
+
|
|
|
2b6473 |
+void
|
|
|
2b6473 |
paps_set_scale(paps_t *paps_,
|
|
|
2b6473 |
gdouble scale_x,
|
|
|
2b6473 |
gdouble scale_y)
|
|
|
2b6473 |
@@ -401,7 +424,7 @@ static void draw_contour(paps_private_t *paps,
|
|
|
2b6473 |
FT_Face ft_face = pango_ft2_font_get_face(font);
|
|
|
2b6473 |
int num_glyphs = glyphs->num_glyphs;
|
|
|
2b6473 |
int glyph_idx;
|
|
|
2b6473 |
-
|
|
|
2b6473 |
+
|
|
|
2b6473 |
for (glyph_idx=0; glyph_idx
|
|
|
2b6473 |
{
|
|
|
2b6473 |
PangoGlyphGeometry geometry = glyphs->glyphs[glyph_idx].geometry;
|
|
|
2b6473 |
@@ -410,7 +433,11 @@ static void draw_contour(paps_private_t *paps,
|
|
|
2b6473 |
glyph_pos_x = x_pos + 1.0*geometry.x_offset * scale;
|
|
|
2b6473 |
glyph_pos_y = line_start_pos_y - 1.0*geometry.y_offset * scale;
|
|
|
2b6473 |
|
|
|
2b6473 |
- x_pos += geometry.width * scale * paps->scale_x;
|
|
|
2b6473 |
+ if (paps->cpi > 0.0L) {
|
|
|
2b6473 |
+ x_pos += (1 / paps->cpi * 72.0);
|
|
|
2b6473 |
+ } else {
|
|
|
2b6473 |
+ x_pos += geometry.width * scale * paps->scale_x;
|
|
|
2b6473 |
+ }
|
|
|
2b6473 |
|
|
|
2b6473 |
if (glyphs->glyphs[glyph_idx].glyph == PANGO_GLYPH_EMPTY)
|
|
|
2b6473 |
continue;
|
|
|
2b6473 |
diff --git a/src/libpaps.h b/src/libpaps.h
|
|
|
2b6473 |
index 0b74321..cbb4042 100644
|
|
|
2b6473 |
--- a/src/libpaps.h
|
|
|
2b6473 |
+++ b/src/libpaps.h
|
|
|
2b6473 |
@@ -53,10 +53,16 @@ void paps_free(paps_t *paps);
|
|
|
2b6473 |
* @param scale_y y-coordinate scale
|
|
|
2b6473 |
*
|
|
|
2b6473 |
*/
|
|
|
2b6473 |
-void
|
|
|
2b6473 |
-paps_set_scale(paps_t *paps,
|
|
|
2b6473 |
- gdouble scale_x,
|
|
|
2b6473 |
- gdouble scale_y);
|
|
|
2b6473 |
+void paps_set_scale(paps_t *paps,
|
|
|
2b6473 |
+ gdouble scale_x,
|
|
|
2b6473 |
+ gdouble scale_y);
|
|
|
2b6473 |
+
|
|
|
2b6473 |
+void paps_set_paper_size(paps_t *paps_,
|
|
|
2b6473 |
+ gdouble width,
|
|
|
2b6473 |
+ gdouble height);
|
|
|
2b6473 |
+
|
|
|
2b6473 |
+void paps_set_cpi(paps_t *paps_,
|
|
|
2b6473 |
+ gdouble cpi);
|
|
|
2b6473 |
|
|
|
2b6473 |
/**
|
|
|
2b6473 |
* libpaps may currently be used only with a PangoContext that it
|
|
|
2b6473 |
diff --git a/src/paps.c b/src/paps.c
|
|
|
2b6473 |
index 334d547..72dbaad 100644
|
|
|
2b6473 |
--- a/src/paps.c
|
|
|
2b6473 |
+++ b/src/paps.c
|
|
|
2b6473 |
@@ -33,6 +33,8 @@
|
|
|
2b6473 |
#include <locale.h>
|
|
|
2b6473 |
#include <cups/cups.h>
|
|
|
2b6473 |
#include <cups/ppd.h>
|
|
|
2b6473 |
+#include <math.h>
|
|
|
2b6473 |
+#include <wchar.h>
|
|
|
2b6473 |
|
|
|
2b6473 |
#define BUFSIZE 1024
|
|
|
2b6473 |
#define DEFAULT_FONT_FAMILY "Monospace"
|
|
|
2b6473 |
@@ -594,6 +596,8 @@ int main(int argc, char *argv[])
|
|
|
2b6473 |
page_layout.owner = page_owner;
|
|
|
2b6473 |
page_layout.cups_mode = cups_mode;
|
|
|
2b6473 |
|
|
|
2b6473 |
+ paps_set_paper_size(paps, page_width, page_height);
|
|
|
2b6473 |
+
|
|
|
2b6473 |
/* calculate x-coordinate scale */
|
|
|
2b6473 |
if (page_layout.cpi > 0.0L)
|
|
|
2b6473 |
{
|
|
|
2b6473 |
@@ -606,7 +610,7 @@ int main(int argc, char *argv[])
|
|
|
2b6473 |
w = pango_font_metrics_get_approximate_digit_width (metrics);
|
|
|
2b6473 |
if (w > max_width)
|
|
|
2b6473 |
max_width = w;
|
|
|
2b6473 |
- page_layout.scale_x = 1 / page_layout.cpi * 72.0 * PANGO_SCALE / max_width;
|
|
|
2b6473 |
+ page_layout.scale_x = 1 / page_layout.cpi * 72.0 * (gdouble)PANGO_SCALE / (gdouble)max_width;
|
|
|
2b6473 |
pango_font_metrics_unref (metrics);
|
|
|
2b6473 |
g_object_unref (G_OBJECT (fontmap));
|
|
|
2b6473 |
|
|
|
2b6473 |
@@ -614,6 +618,8 @@ int main(int argc, char *argv[])
|
|
|
2b6473 |
// update the font size to that width
|
|
|
2b6473 |
pango_font_description_set_size (font_description, font_size * page_layout.scale_x);
|
|
|
2b6473 |
pango_context_set_font_description (pango_context, font_description);
|
|
|
2b6473 |
+
|
|
|
2b6473 |
+ paps_set_cpi(paps, page_layout.cpi);
|
|
|
2b6473 |
}
|
|
|
2b6473 |
|
|
|
2b6473 |
page_layout.scale_x = page_layout.scale_y = 1.0;
|
|
|
2b6473 |
@@ -727,119 +733,6 @@ read_file (FILE *file,
|
|
|
2b6473 |
return text;
|
|
|
2b6473 |
}
|
|
|
2b6473 |
|
|
|
2b6473 |
-#if 0
|
|
|
2b6473 |
-/* Take a UTF8 string and break it into paragraphs on \n characters.
|
|
|
2b6473 |
- *
|
|
|
2b6473 |
- * Sorry. I couldn't figure out what this version was supposed to do
|
|
|
2b6473 |
- *
|
|
|
2b6473 |
- */
|
|
|
2b6473 |
-static GList *
|
|
|
2b6473 |
-split_text_into_paragraphs (PangoContext *pango_context,
|
|
|
2b6473 |
- page_layout_t *page_layout,
|
|
|
2b6473 |
- int paint_width, /* In pixels */
|
|
|
2b6473 |
- char *text)
|
|
|
2b6473 |
-{
|
|
|
2b6473 |
- char *p = text;
|
|
|
2b6473 |
- char *next;
|
|
|
2b6473 |
- gunichar wc;
|
|
|
2b6473 |
- GList *result = NULL;
|
|
|
2b6473 |
- char *last_para = text;
|
|
|
2b6473 |
-
|
|
|
2b6473 |
- while (p != NULL && *p)
|
|
|
2b6473 |
- {
|
|
|
2b6473 |
- wc = g_utf8_get_char (p);
|
|
|
2b6473 |
- next = g_utf8_next_char (p);
|
|
|
2b6473 |
- if (wc == (gunichar)-1)
|
|
|
2b6473 |
- {
|
|
|
2b6473 |
- fprintf (stderr, "%s: Invalid character in input\n", g_get_prgname ());
|
|
|
2b6473 |
- wc = 0;
|
|
|
2b6473 |
- }
|
|
|
2b6473 |
- if (!*p || !wc || wc == '\n' || wc == '\f')
|
|
|
2b6473 |
- {
|
|
|
2b6473 |
- Paragraph *para = g_new (Paragraph, 1);
|
|
|
2b6473 |
- para->text = last_para;
|
|
|
2b6473 |
- para->length = p - last_para;
|
|
|
2b6473 |
- para->layout = pango_layout_new (pango_context);
|
|
|
2b6473 |
-
|
|
|
2b6473 |
- if (cpi > 0.0L && page_layout->do_wordwrap)
|
|
|
2b6473 |
- {
|
|
|
2b6473 |
- PangoRectangle ink_rect, logical_rect;
|
|
|
2b6473 |
- wchar_t *wtext, *wnewtext;
|
|
|
2b6473 |
- gchar *newtext;
|
|
|
2b6473 |
- size_t i, len, wwidth = 0, n;
|
|
|
2b6473 |
-
|
|
|
2b6473 |
- wtext = g_utf8_to_ucs4 (para->text, para->length, NULL, NULL, NULL);
|
|
|
2b6473 |
- if (wtext == NULL)
|
|
|
2b6473 |
- {
|
|
|
2b6473 |
- fprintf (stderr, "Failed to convert UTF-8 to UCS-4.\n");
|
|
|
2b6473 |
- exit(1);
|
|
|
2b6473 |
- }
|
|
|
2b6473 |
-
|
|
|
2b6473 |
- len = g_utf8_strlen (para->text, para->length);
|
|
|
2b6473 |
- /* the amount of characters to be able to put on the line against CPI */
|
|
|
2b6473 |
- n = page_layout->column_width / 72.0 * cpi;
|
|
|
2b6473 |
- if (len > n)
|
|
|
2b6473 |
- {
|
|
|
2b6473 |
- wnewtext = g_new (wchar_t, wcslen (wtext) + 1);
|
|
|
2b6473 |
- if (wnewtext == NULL)
|
|
|
2b6473 |
- {
|
|
|
2b6473 |
- fprintf (stderr, "Failed to allocate a memory.\n");
|
|
|
2b6473 |
- g_free (wtext);
|
|
|
2b6473 |
- exit(1);
|
|
|
2b6473 |
- }
|
|
|
2b6473 |
- for (i = 0; i < len; i++)
|
|
|
2b6473 |
- {
|
|
|
2b6473 |
- wwidth += wcwidth (wtext[i]);
|
|
|
2b6473 |
- if (wwidth > n)
|
|
|
2b6473 |
- break;
|
|
|
2b6473 |
- wnewtext[i] = wtext[i];
|
|
|
2b6473 |
- }
|
|
|
2b6473 |
- wnewtext[i] = 0L;
|
|
|
2b6473 |
-
|
|
|
2b6473 |
- newtext = g_ucs4_to_utf8 ((const gunichar *)wnewtext, i, NULL, NULL, NULL);
|
|
|
2b6473 |
- if (newtext == NULL)
|
|
|
2b6473 |
- {
|
|
|
2b6473 |
- fprintf (stderr, "Failed to convert UCS-4 to UTF-8.\n");
|
|
|
2b6473 |
- exit(1);
|
|
|
2b6473 |
- }
|
|
|
2b6473 |
-
|
|
|
2b6473 |
- pango_layout_set_text (para->layout, newtext, -1);
|
|
|
2b6473 |
- pango_layout_get_extents (para->layout, &ink_rect, &logical_rect);
|
|
|
2b6473 |
- /* update paint_width to wrap_against CPI */
|
|
|
2b6473 |
- paint_width = logical_rect.width / PANGO_SCALE;
|
|
|
2b6473 |
- g_free (newtext);
|
|
|
2b6473 |
- g_free (wnewtext);
|
|
|
2b6473 |
- }
|
|
|
2b6473 |
- g_free (wtext);
|
|
|
2b6473 |
- }
|
|
|
2b6473 |
- pango_layout_set_text (para->layout, para->text, para->length);
|
|
|
2b6473 |
- pango_layout_set_justify (para->layout, page_layout->do_justify);
|
|
|
2b6473 |
- pango_layout_set_alignment (para->layout,
|
|
|
2b6473 |
- page_layout->pango_dir == PANGO_DIRECTION_LTR
|
|
|
2b6473 |
- ? PANGO_ALIGN_LEFT : PANGO_ALIGN_RIGHT);
|
|
|
2b6473 |
- pango_layout_set_width (para->layout, paint_width * PANGO_SCALE);
|
|
|
2b6473 |
- if (page_layout->do_wordwrap)
|
|
|
2b6473 |
- pango_layout_set_wrap (para->layout, PANGO_WRAP_WORD_CHAR);
|
|
|
2b6473 |
- para->height = 0;
|
|
|
2b6473 |
-
|
|
|
2b6473 |
- if (wc == '\f')
|
|
|
2b6473 |
- para->formfeed = 1;
|
|
|
2b6473 |
- else
|
|
|
2b6473 |
- para->formfeed = 0;
|
|
|
2b6473 |
-
|
|
|
2b6473 |
- last_para = next;
|
|
|
2b6473 |
-
|
|
|
2b6473 |
- result = g_list_prepend (result, para);
|
|
|
2b6473 |
- }
|
|
|
2b6473 |
- if (!wc) /* incomplete character at end */
|
|
|
2b6473 |
- break;
|
|
|
2b6473 |
- p = next;
|
|
|
2b6473 |
- }
|
|
|
2b6473 |
-
|
|
|
2b6473 |
- return g_list_reverse (result);
|
|
|
2b6473 |
-}
|
|
|
2b6473 |
-#endif
|
|
|
2b6473 |
-
|
|
|
2b6473 |
/* Take a UTF8 string and break it into paragraphs on \n characters
|
|
|
2b6473 |
*/
|
|
|
2b6473 |
static GList *
|
|
|
2b6473 |
@@ -905,18 +798,85 @@ split_text_into_paragraphs (PangoContext *pango_context,
|
|
|
2b6473 |
para->text = last_para;
|
|
|
2b6473 |
para->length = p - last_para;
|
|
|
2b6473 |
para->layout = pango_layout_new (pango_context);
|
|
|
2b6473 |
- // pango_layout_set_font_description (para->layout, font_description);
|
|
|
2b6473 |
- pango_layout_set_text (para->layout, para->text, para->length);
|
|
|
2b6473 |
+
|
|
|
2b6473 |
+ if (page_layout->cpi > 0.0L && page_layout->do_wordwrap) {
|
|
|
2b6473 |
+ /* figuring out the correct width from the pango_font_metrics_get_approximate_width()
|
|
|
2b6473 |
+ * is really hard and pango_layout_set_wrap() doesn't work properly then.
|
|
|
2b6473 |
+ * Those are not reliable to render the characters exactly according to the given CPI.
|
|
|
2b6473 |
+ * So Re-calculate the width to wrap up to be comfortable with CPI.
|
|
|
2b6473 |
+ */
|
|
|
2b6473 |
+ wchar_t *wtext = NULL, *wnewtext = NULL;
|
|
|
2b6473 |
+ gchar *newtext = NULL;
|
|
|
2b6473 |
+ gsize len, col, i, wwidth = 0;
|
|
|
2b6473 |
+ PangoRectangle ink_rect, logical_rect;
|
|
|
2b6473 |
+
|
|
|
2b6473 |
+ wtext = (wchar_t *)g_utf8_to_ucs4(para->text, para->length, NULL, NULL, NULL);
|
|
|
2b6473 |
+ if (wtext == NULL) {
|
|
|
2b6473 |
+ fprintf(stderr, "%s: Unable to convert UTF-8 to UCS-4.\n", g_get_prgname());
|
|
|
2b6473 |
+ fail:
|
|
|
2b6473 |
+ g_free(wtext);
|
|
|
2b6473 |
+ g_free(wnewtext);
|
|
|
2b6473 |
+ g_free(newtext);
|
|
|
2b6473 |
+ if (page_layout->cups_mode) {
|
|
|
2b6473 |
+ /* try to continue parsing text */
|
|
|
2b6473 |
+ p = next;
|
|
|
2b6473 |
+ continue;
|
|
|
2b6473 |
+ } else {
|
|
|
2b6473 |
+ exit(1);
|
|
|
2b6473 |
+ }
|
|
|
2b6473 |
+ }
|
|
|
2b6473 |
+ len = g_utf8_strlen(para->text, para->length);
|
|
|
2b6473 |
+ /* the amount of characters that can be put on the line against CPI */
|
|
|
2b6473 |
+ col = page_layout->column_width / 72.0 * page_layout->cpi;
|
|
|
2b6473 |
+ if (len > col) {
|
|
|
2b6473 |
+ /* need to wrap up them */
|
|
|
2b6473 |
+ wnewtext = g_new(wchar_t, wcslen(wtext) + 1);
|
|
|
2b6473 |
+ if (wnewtext == NULL) {
|
|
|
2b6473 |
+ fprintf(stderr, "%s: Unable to allocate the memory.\n", g_get_prgname());
|
|
|
2b6473 |
+ goto fail;
|
|
|
2b6473 |
+ }
|
|
|
2b6473 |
+ for (i = 0; i < len; i++) {
|
|
|
2b6473 |
+ wwidth += wcwidth(wtext[i]);
|
|
|
2b6473 |
+ if (wwidth > col)
|
|
|
2b6473 |
+ break;
|
|
|
2b6473 |
+ wnewtext[i] = wtext[i];
|
|
|
2b6473 |
+ }
|
|
|
2b6473 |
+ wnewtext[i] = 0L;
|
|
|
2b6473 |
+
|
|
|
2b6473 |
+ newtext = g_ucs4_to_utf8((const gunichar *)wnewtext, i, NULL, NULL, NULL);
|
|
|
2b6473 |
+ if (newtext == NULL) {
|
|
|
2b6473 |
+ fprintf(stderr, "%s: Unable to convert UCS-4 to UTF-8.\n", g_get_prgname());
|
|
|
2b6473 |
+ goto fail;
|
|
|
2b6473 |
+ }
|
|
|
2b6473 |
+ pango_layout_set_text(para->layout, newtext, -1);
|
|
|
2b6473 |
+ pango_layout_get_extents(para->layout, &ink_rect, &logical_rect);
|
|
|
2b6473 |
+ paint_width = logical_rect.width / PANGO_SCALE;
|
|
|
2b6473 |
+ g_free(wnewtext);
|
|
|
2b6473 |
+ g_free(newtext);
|
|
|
2b6473 |
+
|
|
|
2b6473 |
+ para->length = i;
|
|
|
2b6473 |
+ next = g_utf8_offset_to_pointer(para->text, para->length);
|
|
|
2b6473 |
+ wc = g_utf8_prev_char(next);
|
|
|
2b6473 |
+ } else {
|
|
|
2b6473 |
+ pango_layout_set_text(para->layout, para->text, para->length);
|
|
|
2b6473 |
+ }
|
|
|
2b6473 |
+ g_free(wtext);
|
|
|
2b6473 |
+
|
|
|
2b6473 |
+ pango_layout_set_width(para->layout, -1);
|
|
|
2b6473 |
+ } else {
|
|
|
2b6473 |
+ pango_layout_set_text (para->layout, para->text, para->length);
|
|
|
2b6473 |
+ if (page_layout->do_wordwrap) {
|
|
|
2b6473 |
+ pango_layout_set_wrap (para->layout, PANGO_WRAP_WORD_CHAR);
|
|
|
2b6473 |
+ pango_layout_set_width (para->layout, paint_width * PANGO_SCALE);
|
|
|
2b6473 |
+ } else {
|
|
|
2b6473 |
+ pango_layout_set_width (para->layout, -1);
|
|
|
2b6473 |
+ }
|
|
|
2b6473 |
+ }
|
|
|
2b6473 |
+
|
|
|
2b6473 |
pango_layout_set_justify (para->layout, page_layout->do_justify);
|
|
|
2b6473 |
pango_layout_set_alignment (para->layout,
|
|
|
2b6473 |
page_layout->pango_dir == PANGO_DIRECTION_LTR
|
|
|
2b6473 |
? PANGO_ALIGN_LEFT : PANGO_ALIGN_RIGHT);
|
|
|
2b6473 |
- if (page_layout->do_wordwrap) {
|
|
|
2b6473 |
- pango_layout_set_wrap (para->layout, PANGO_WRAP_WORD_CHAR);
|
|
|
2b6473 |
- pango_layout_set_width (para->layout, paint_width * PANGO_SCALE);
|
|
|
2b6473 |
- } else {
|
|
|
2b6473 |
- pango_layout_set_width (para->layout, -1);
|
|
|
2b6473 |
- }
|
|
|
2b6473 |
|
|
|
2b6473 |
para->height = 0;
|
|
|
2b6473 |
|