/****************************************************************************
- * RRDtool 1.1.x Copyright Tobias Oetiker, 1997 - 2002
+ * RRDtool 1.2.9 Copyright by Tobi Oetiker, 1997-2005
****************************************************************************
* rrd_gfx.c graphics wrapper for rrdtool
**************************************************************************/
/* #define DEBUG */
#ifdef DEBUG
-# define DPRINT(x) (void)(printf x, printf("\n"))
+# define DPRINTF(x,...) fprintf(stderr, x, ## __VA_ARGS__);
#else
-# define DPRINT(x)
+# define DPRINTF(x,...)
#endif
#include "rrd_tool.h"
#include <png.h>
#include <ft2build.h>
#include FT_FREETYPE_H
+#include FT_GLYPH_H
#include "rrd_gfx.h"
#include "rrd_afm.h"
+#include "unused.h"
/* lines are better drawn on the pixle than between pixles */
#define LINEOFFSET 0.5
+#define USE_PDF_FAKE_ALPHA 1
+#define USE_EPS_FAKE_ALPHA 1
+
+typedef struct gfx_char_s *gfx_char;
+struct gfx_char_s {
+ FT_UInt index; /* glyph index */
+ FT_Vector pos; /* location from baseline in 26.6 */
+ FT_Glyph image; /* glyph bitmap */
+};
+
+typedef struct gfx_string_s *gfx_string;
+struct gfx_string_s {
+ unsigned int width;
+ unsigned int height;
+ int count; /* number of characters */
+ gfx_char glyphs;
+ size_t num_glyphs;
+ FT_BBox bbox;
+ FT_Matrix transform;
+};
+
+/* compute string bbox */
+static void compute_string_bbox(gfx_string string);
+
+/* create a freetype glyph string */
+gfx_string gfx_string_create ( gfx_canvas_t *canvas, FT_Face face,
+ const char *text, int rotation, double tabwidth, double size);
+
+/* create a freetype glyph string */
+static void gfx_string_destroy ( gfx_string string );
+
static
gfx_node_t *gfx_new_node( gfx_canvas_t *canvas,enum gfx_en type){
gfx_node_t *node = art_new(gfx_node_t,1);
node->points = 0;
node->points_max =0;
node->closed_path = 0;
- node->svp = NULL; /* svp */
node->filename = NULL; /* font or image filename */
node->text = NULL;
node->x = 0.0;
canvas->imgformat = IF_PNG; /* we default to PNG output */
canvas->interlaced = 0;
canvas->zoom = 1.0;
- return canvas;
+ canvas->font_aa_threshold = -1.0;
+ canvas->aa_type = AA_NORMAL;
+ return canvas;
}
/* create a new line */
if (vec == NULL) return NULL;
vec[0].code = ART_MOVETO_OPEN; vec[0].x=X0+LINEOFFSET; vec[0].y=Y0+LINEOFFSET;
vec[1].code = ART_LINETO; vec[1].x=X1+LINEOFFSET; vec[1].y=Y1+LINEOFFSET;
- vec[2].code = ART_END;
+ vec[2].code = ART_END; vec[2].x=0;vec[2].y=0;
node->points = 3;
node->points_max = 3;
vec[1].code = ART_LINETO; vec[1].x=X1; vec[1].y=Y1;
vec[2].code = ART_LINETO; vec[2].x=X2; vec[2].y=Y2;
vec[3].code = ART_LINETO; vec[3].x=X0; vec[3].y=Y0;
- vec[4].code = ART_END;
+ vec[4].code = ART_END; vec[4].x=0; vec[4].y=0;
node->points = 5;
node->points_max = 5;
void gfx_close_path (gfx_node_t *node) {
node->closed_path = 1;
+ if (node->path[0].code == ART_MOVETO_OPEN)
+ node->path[0].code = ART_MOVETO;
}
/* create a text node */
enum gfx_v_align_en v_align,
char* text){
gfx_node_t *node = gfx_new_node(canvas,GFX_TEXT);
- if (angle != 0.0){
- /* currently we only support 0 and 270 */
- angle = 270.0;
- }
node->text = strdup(text);
node->size = size;
node->halign = h_align;
node->valign = v_align;
#if 0
- /* debugging: show text anchor */
- gfx_new_line(canvas, x - 3, y + 0, x, y, 0.2, 0x00FF0000);
- gfx_new_line(canvas, x - 0, y + 3, x, y, 0.2, 0x00FF0000);
+ /* debugging: show text anchor
+ green is along x-axis, red is downward y-axis */
+ if (1) {
+ double a = 2 * M_PI * -node->angle / 360.0;
+ double cos_a = cos(a);
+ double sin_a = sin(a);
+ double len = 3;
+ gfx_new_line(canvas,
+ x, y,
+ x + len * cos_a, y - len * sin_a,
+ 0.2, 0x00FF0000);
+ gfx_new_line(canvas,
+ x, y,
+ x + len * sin_a, y + len * cos_a,
+ 0.2, 0xFF000000);
+ }
#endif
return node;
}
return gfx_render_svg (canvas, width, height, background, fp);
case IF_EPS:
return gfx_render_eps (canvas, width, height, background, fp);
+ case IF_PDF:
+ return gfx_render_pdf (canvas, width, height, background, fp);
default:
return -1;
}
}
+static void gfx_string_destroy ( gfx_string string ) {
+ unsigned int n;
+ if (string->glyphs) {
+ for (n=0; n<string->num_glyphs; ++n)
+ FT_Done_Glyph (string->glyphs[n].image);
+ free (string->glyphs);
+ }
+ free (string);
+}
+
+
double gfx_get_text_width ( gfx_canvas_t *canvas,
double start, char* font, double size,
- double tabwidth, char* text){
+ double tabwidth, char* text, int rotation){
switch (canvas->imgformat) {
case IF_PNG:
- return gfx_get_text_width_libart (canvas, start, font, size, tabwidth, text);
+ return gfx_get_text_width_libart (canvas, start, font, size, tabwidth, text, rotation);
case IF_SVG: /* fall through */
case IF_EPS:
+ case IF_PDF:
return afm_get_text_width(start, font, size, tabwidth, text);
default:
return size * strlen(text);
}
}
-double gfx_get_text_width_libart ( gfx_canvas_t *canvas,
- double start, char* font, double size,
- double tabwidth, char* text){
+double gfx_get_text_width_libart (
+ gfx_canvas_t *canvas, double UNUSED(start), char* font, double size,
+ double tabwidth, char* text, int rotation ){
- FT_GlyphSlot slot;
- FT_UInt previous=0;
- FT_UInt glyph_index=0;
- FT_Bool use_kerning;
int error;
+ double text_width=0;
FT_Face face;
FT_Library library=NULL;
- double text_width=0;
+ gfx_string string;
+
FT_Init_FreeType( &library );
error = FT_New_Face( library, font, 0, &face );
if ( error ) return -1;
error = FT_Set_Char_Size(face, size*64,size*64, 100,100);
if ( error ) return -1;
+ string = gfx_string_create( canvas, face, text, rotation, tabwidth, size );
+ text_width = string->width;
+ gfx_string_destroy(string);
+ FT_Done_FreeType(library);
+ return text_width/64;
+}
+
+static void gfx_libart_close_path(gfx_node_t *node, ArtVpath **vec)
+{
+ /* libart must have end==start for closed paths,
+ even if using ART_MOVETO and not ART_MOVETO_OPEN
+ so add extra point which is the same as the starting point */
+ int points_max = node->points; /* scaled array has exact size */
+ int points = node->points - 1;
+ art_vpath_add_point (vec, &points, &points_max, ART_LINETO,
+ (**vec).x, (**vec).y);
+ art_vpath_add_point (vec, &points, &points_max, ART_END, 0, 0);
+}
+
+
+/* find bbox of a string */
+static void compute_string_bbox(gfx_string string) {
+ unsigned int n;
+ FT_BBox bbox;
+
+ bbox.xMin = bbox.yMin = 32000;
+ bbox.xMax = bbox.yMax = -32000;
+ for ( n = 0; n < string->num_glyphs; n++ ) {
+ FT_BBox glyph_bbox;
+ FT_Glyph_Get_CBox( string->glyphs[n].image, ft_glyph_bbox_gridfit,
+ &glyph_bbox );
+ if (glyph_bbox.xMin < bbox.xMin) {
+ bbox.xMin = glyph_bbox.xMin;
+ }
+ if (glyph_bbox.yMin < bbox.yMin) {
+ bbox.yMin = glyph_bbox.yMin;
+ }
+ if (glyph_bbox.xMax > bbox.xMax) {
+ bbox.xMax = glyph_bbox.xMax;
+ }
+ if (glyph_bbox.yMax > bbox.yMax) {
+ bbox.yMax = glyph_bbox.yMax;
+ }
+ }
+ if ( bbox.xMin > bbox.xMax ) {
+ bbox.xMin = 0;
+ bbox.yMin = 0;
+ bbox.xMax = 0;
+ bbox.yMax = 0;
+ }
+ string->bbox.xMin = bbox.xMin;
+ string->bbox.xMax = bbox.xMax;
+ string->bbox.yMin = bbox.yMin;
+ string->bbox.yMax = bbox.yMax;
+}
+
+/* create a free type glyph string */
+gfx_string gfx_string_create(gfx_canvas_t *canvas, FT_Face face,const char *text,
+ int rotation, double tabwidth, double size )
+{
+
+ FT_GlyphSlot slot = face->glyph; /* a small shortcut */
+ FT_Bool use_kerning;
+ FT_UInt previous;
+ FT_Vector ft_pen;
+
+ gfx_string string = (gfx_string) malloc (sizeof(struct gfx_string_s));
+
+ gfx_char glyph; /* current glyph in table */
+ int n;
+ int error;
+ int gottab = 0;
+
+#ifdef HAVE_MBSTOWCS
+ wchar_t *cstr;
+ size_t clen = strlen(text)+1;
+ cstr = malloc(sizeof(wchar_t) * clen); /* yes we are allocating probably too much here, I know */
+ string->count=mbstowcs(cstr,text,clen);
+ if ( string->count == -1){
+ string->count=mbstowcs(cstr,"Enc-Err",6);
+ }
+#else
+ char *cstr = strdup(text);
+ string->count = strlen (text);
+#endif
+
+ ft_pen.x = 0; /* start at (0,0) !! */
+ ft_pen.y = 0;
+
+
+ string->width = 0;
+ string->height = 0;
+ string->glyphs = (gfx_char) calloc (string->count,sizeof(struct gfx_char_s));
+ string->num_glyphs = 0;
+ string->transform.xx = (FT_Fixed)( cos(M_PI*(rotation)/180.0)*0x10000);
+ string->transform.xy = (FT_Fixed)(-sin(M_PI*(rotation)/180.0)*0x10000);
+ string->transform.yx = (FT_Fixed)( sin(M_PI*(rotation)/180.0)*0x10000);
+ string->transform.yy = (FT_Fixed)( cos(M_PI*(rotation)/180.0)*0x10000);
+
use_kerning = FT_HAS_KERNING(face);
- slot = face->glyph;
- for(;*text;text++) {
- previous = glyph_index;
- glyph_index = FT_Get_Char_Index( face, *text);
-
- if (use_kerning && previous && glyph_index){
- FT_Vector delta;
- FT_Get_Kerning( face, previous, glyph_index,
- 0, &delta );
- text_width += (double)delta.x / 64.0;
-
+ previous = 0;
+ glyph = string->glyphs;
+ for (n=0; n<string->count;glyph++,n++) {
+ FT_Vector vec;
+ /* handle the tabs ...
+ have a witespace glyph inserted, but set its width such that the distance
+ of the new right edge is x times tabwidth from 0,0 where x is an integer. */
+ unsigned int letter = cstr[n];
+
+ gottab = 0;
+ if (letter == '\\' && n+1 < string->count && cstr[n+1] == 't'){
+ /* we have a tab here so skip the backslash and
+ set t to ' ' so that we get a white space */
+ gottab = 1;
+ n++;
+ letter = ' ';
+ }
+ if (letter == '\t'){
+ letter = ' ';
+ gottab = 1 ;
+ }
+ /* initialize each struct gfx_char_s */
+ glyph->index = 0;
+ glyph->pos.x = 0;
+ glyph->pos.y = 0;
+ glyph->image = NULL;
+ glyph->index = FT_Get_Char_Index( face, letter );
+
+ /* compute glyph origin */
+ if ( use_kerning && previous && glyph->index ) {
+ FT_Vector kerning;
+ FT_Get_Kerning (face, previous, glyph->index,
+ ft_kerning_default, &kerning);
+ ft_pen.x += kerning.x;
+ ft_pen.y += kerning.y;
}
- error = FT_Load_Glyph( face, glyph_index, 0 );
- if ( error ) {
- FT_Done_FreeType(library);
- return -1;
+
+ /* load the glyph image (in its native format) */
+ /* for now, we take a monochrome glyph bitmap */
+ error = FT_Load_Glyph (face, glyph->index, size > canvas->font_aa_threshold ?
+ canvas->aa_type == AA_NORMAL ? FT_LOAD_TARGET_NORMAL :
+ canvas->aa_type == AA_LIGHT ? FT_LOAD_TARGET_LIGHT :
+ FT_LOAD_TARGET_MONO : FT_LOAD_TARGET_MONO);
+ if (error) {
+ DPRINTF("couldn't load glyph: %c\n", letter)
+ continue;
+ }
+ error = FT_Get_Glyph (slot, &glyph->image);
+ if (error) {
+ DPRINTF("couldn't get glyph %c from slot %d\n", letter, (int)slot)
+ continue;
}
- if (! previous) {
- text_width -= (double)slot->metrics.horiBearingX / 64.0; /* add just char width */
+ /* if we are in tabbing mode, we replace the tab with a space and shift the position
+ of the space so that its left edge is where the tab was supposed to land us */
+ if (gottab){
+ /* we are in gridfitting mode so the calculations happen in 1/64 pixles */
+ ft_pen.x = tabwidth*64.0 * (float)(1 + (long)(ft_pen.x / (tabwidth * 64.0))) - slot->advance.x;
}
- text_width += (double)slot->metrics.horiAdvance / 64.0;
+ /* store current pen position */
+ glyph->pos.x = ft_pen.x;
+ glyph->pos.y = ft_pen.y;
+
+
+ ft_pen.x += slot->advance.x;
+ ft_pen.y += slot->advance.y;
+
+ /* rotate glyph */
+ vec = glyph->pos;
+ FT_Vector_Transform (&vec, &string->transform);
+ error = FT_Glyph_Transform (glyph->image, &string->transform, &vec);
+ if (error) {
+ DPRINTF("couldn't transform glyph id %d\n", letter)
+ continue;
+ }
+
+ /* convert to a bitmap - destroy native image */
+ error = FT_Glyph_To_Bitmap (&glyph->image, size > canvas->font_aa_threshold ?
+ canvas->aa_type == AA_NORMAL ? FT_RENDER_MODE_NORMAL :
+ canvas->aa_type == AA_LIGHT ? FT_RENDER_MODE_LIGHT :
+ FT_RENDER_MODE_MONO : FT_RENDER_MODE_MONO, 0, 1);
+ if (error) {
+ DPRINTF("couldn't convert glyph id %d to bitmap\n", letter)
+ continue;
+ }
+
+ /* increment number of glyphs */
+ previous = glyph->index;
+ string->num_glyphs++;
}
- text_width -= (double)slot->metrics.horiAdvance / 64.0; /* remove last step */
- text_width += (double)slot->metrics.width / 64.0; /* add just char width */
- text_width += (double)slot->metrics.horiBearingX / 64.0; /* add just char width */
- FT_Done_FreeType(library);
- return text_width;
+ free(cstr);
+/* printf ("number of glyphs = %d\n", string->num_glyphs);*/
+ compute_string_bbox( string );
+ /* the last character was a tab */
+ /* if (gottab) { */
+ string->width = ft_pen.x;
+ /* } else {
+ string->width = string->bbox.xMax - string->bbox.xMin;
+ } */
+ string->height = string->bbox.yMax - string->bbox.yMin;
+ return string;
}
-
+
+
static int gfx_save_png (art_u8 *buffer, FILE *fp,
long width, long height, long bytes_per_pixel);
/* render grafics into png image */
+
int gfx_render_png (gfx_canvas_t *canvas,
art_u32 width, art_u32 height,
gfx_color_t background, FILE *fp){
FT_Library library;
gfx_node_t *node = canvas->firstnode;
+ /*
art_u8 red = background >> 24, green = (background >> 16) & 0xff;
art_u8 blue = (background >> 8) & 0xff, alpha = ( background & 0xff );
+ */
unsigned long pys_width = width * canvas->zoom;
unsigned long pys_height = height * canvas->zoom;
- const int bytes_per_pixel = 3;
+ const int bytes_per_pixel = 4;
unsigned long rowstride = pys_width*bytes_per_pixel; /* bytes per pixel */
- art_u8 *buffer = art_new (art_u8, rowstride*pys_height);
- art_rgb_run_alpha (buffer, red, green, blue, alpha, pys_width*pys_height);
+
+ /* fill that buffer with out background color */
+ gfx_color_t *buffp = art_new (gfx_color_t, pys_width*pys_height);
+ art_u8 *buffer = (art_u8 *)buffp;
+ unsigned long i;
+ for (i=0;i<pys_width*pys_height;
+ i++){
+ *(buffp++)=background;
+ }
FT_Init_FreeType( &library );
while(node){
switch (node->type) {
ArtVpath *vec;
double dst[6];
ArtSVP *svp;
- if (node->closed_path) {
- /* libart uses end==start for closed as indicator of closed path */
- gfx_add_point(node, node->path[0].x, node->path[0].y);
- node->closed_path = 0;
- }
art_affine_scale(dst,canvas->zoom,canvas->zoom);
vec = art_vpath_affine_transform(node->path,dst);
+ if (node->closed_path)
+ gfx_libart_close_path(node, &vec);
+ /* gfx_round_scaled_coordinates(vec); */
+ /* pvec = art_vpath_perturb(vec);
+ art_free(vec); */
if(node->type == GFX_LINE){
svp = art_svp_vpath_stroke ( vec, ART_PATH_STROKE_JOIN_ROUND,
ART_PATH_STROKE_CAP_ROUND,
- node->size*canvas->zoom,1,1);
+ node->size*canvas->zoom,4,0.25);
} else {
- svp = art_svp_from_vpath ( vec );
+ svp = art_svp_from_vpath ( vec );
+ /* this takes time and is unnecessary since we make
+ sure elsewhere that the areas are going clock-whise */
+ /* svpt = art_svp_uncross( svp );
+ art_svp_free(svp);
+ svp = art_svp_rewind_uncrossed(svpt,ART_WIND_RULE_NONZERO);
+ art_svp_free(svpt);
+ */
}
art_free(vec);
- art_rgb_svp_alpha (svp ,0,0, pys_width, pys_height,
- node->color, buffer, rowstride, NULL);
- art_free(svp);
+ /* this is from gnome since libart does not have this yet */
+ gnome_print_art_rgba_svp_alpha (svp ,0,0, pys_width, pys_height,
+ node->color, buffer, rowstride, NULL);
+ art_svp_free(svp);
break;
}
case GFX_TEXT: {
+ unsigned int n;
int error;
- float text_width=0.0, text_height = 0.0;
- unsigned char *text;
- art_u8 fcolor[3],falpha;
+ art_u8 fcolor[4],falpha;
FT_Face face;
- FT_GlyphSlot slot;
- FT_UInt previous=0;
- FT_UInt glyph_index=0;
- FT_Bool use_kerning;
+ gfx_char glyph;
+ gfx_string string;
+ FT_Vector vec; /* 26.6 */
float pen_x = 0.0 , pen_y = 0.0;
/* double x,y; */
- long ix,iy,iz;
+ long ix,iy;
fcolor[0] = node->color >> 24;
fcolor[1] = (node->color >> 16) & 0xff;
(char *)node->filename,
0,
&face );
- if ( error ) break;
- use_kerning = FT_HAS_KERNING(face);
-
+ if ( error ) {
+ rrd_set_error("failed to load %s",node->filename);
+ break;
+ }
error = FT_Set_Char_Size(face, /* handle to face object */
(long)(node->size*64),
(long)(node->size*64),
if ( error ) break;
pen_x = node->x * canvas->zoom;
pen_y = node->y * canvas->zoom;
- slot = face->glyph;
-
- for(text=(unsigned char *)node->text;*text;text++) {
- previous = glyph_index;
- glyph_index = FT_Get_Char_Index( face, *text);
-
- if (use_kerning && previous && glyph_index){
- FT_Vector delta;
- FT_Get_Kerning( face, previous, glyph_index,
- 0, &delta );
- text_width += (double)delta.x / 64.0;
-
- }
- error = FT_Load_Glyph( face, glyph_index, 0 );
- if ( error ) break;
- if (previous == 0){
- pen_x -= (double)slot->metrics.horiBearingX / 64.0; /* adjust pos for first char */
- text_width -= (double)slot->metrics.horiBearingX / 64.0; /* add just char width */
- }
- if ( text_height < (double)slot->metrics.horiBearingY / 64.0 ) {
- text_height = (double)slot->metrics.horiBearingY / 64.0;
- }
- text_width += (double)slot->metrics.horiAdvance / 64.0;
- }
- text_width -= (double)slot->metrics.horiAdvance / 64.0; /* remove last step */
- text_width += (double)slot->metrics.width / 64.0; /* add just char width */
- text_width += (double)slot->metrics.horiBearingX / 64.0; /* add just char width */
-
+
+ string = gfx_string_create (canvas, face, node->text, node->angle, node->tabwidth, node->size);
switch(node->halign){
- case GFX_H_RIGHT: pen_x -= text_width; break;
- case GFX_H_CENTER: pen_x -= text_width / 2.0; break;
- case GFX_H_LEFT: break;
- case GFX_H_NULL: break;
+ case GFX_H_RIGHT: vec.x = -string->bbox.xMax;
+ break;
+ case GFX_H_CENTER: vec.x = abs(string->bbox.xMax) >= abs(string->bbox.xMin) ?
+ -string->bbox.xMax/2:-string->bbox.xMin/2;
+ break;
+ case GFX_H_LEFT: vec.x = -string->bbox.xMin;
+ break;
+ case GFX_H_NULL: vec.x = 0;
+ break;
}
switch(node->valign){
- case GFX_V_TOP: pen_y += text_height; break;
- case GFX_V_CENTER: pen_y += text_height / 2.0; break;
- case GFX_V_BOTTOM: break;
- case GFX_V_NULL: break;
+ case GFX_V_TOP: vec.y = string->bbox.yMax;
+ break;
+ case GFX_V_CENTER: vec.y = abs(string->bbox.yMax) >= abs(string->bbox.yMin) ?
+ string->bbox.yMax/2:string->bbox.yMin/2;
+ break;
+ case GFX_V_BOTTOM: vec.y = 0;
+ break;
+ case GFX_V_NULL: vec.y = 0;
+ break;
}
+ pen_x += vec.x/64;
+ pen_y += vec.y/64;
+ glyph = string->glyphs;
+ for(n=0; n<string->num_glyphs; n++, glyph++) {
+ int gr;
+ FT_Glyph image;
+ FT_BitmapGlyph bit;
+ /* long buf_x,comp_n; */
+ /* make copy to transform */
+ if (! glyph->image) {
+ DPRINTF("no image\n")
+ continue;
+ }
+ error = FT_Glyph_Copy (glyph->image, &image);
+ if (error) {
+ DPRINTF("couldn't copy image\n")
+ continue;
+ }
- glyph_index=0;
- for(text=(unsigned char *)node->text;*text;text++) {
- int gr;
- previous = glyph_index;
- glyph_index = FT_Get_Char_Index( face, *text);
-
- if (use_kerning && previous && glyph_index){
- FT_Vector delta;
- FT_Get_Kerning( face, previous, glyph_index,
- 0, &delta );
- pen_x += (double)delta.x / 64.0;
-
+ /* transform it */
+ vec = glyph->pos;
+ FT_Vector_Transform (&vec, &string->transform);
+
+ bit = (FT_BitmapGlyph) image;
+ gr = bit->bitmap.num_grays -1;
+/*
+ buf_x = (pen_x + 0.5) + (double)bit->left;
+ comp_n = buf_x + bit->bitmap.width > pys_width ? pys_width - buf_x : bit->bitmap.width;
+ if (buf_x < 0 || buf_x >= (long)pys_width) continue;
+ buf_x *= bytes_per_pixel ;
+ for (iy=0; iy < bit->bitmap.rows; iy++){
+ long buf_y = iy+(pen_y+0.5)-(double)bit->top;
+ if (buf_y < 0 || buf_y >= (long)pys_height) continue;
+ buf_y *= rowstride;
+ for (ix=0;ix < bit->bitmap.width;ix++){
+ *(letter + (ix*bytes_per_pixel+3)) = *(bit->bitmap.buffer + iy * bit->bitmap.width + ix);
+ }
+ art_rgba_rgba_composite(buffer + buf_y + buf_x ,letter,comp_n);
+ }
+ art_free(letter);
+*/
+ switch ( bit->bitmap.pixel_mode ) {
+ case FT_PIXEL_MODE_GRAY:
+ for (iy=0; iy < bit->bitmap.rows; iy++){
+ long buf_y = iy+(pen_y+0.5)-bit->top;
+ if (buf_y < 0 || buf_y >= (long)pys_height) continue;
+ buf_y *= rowstride;
+ for (ix=0;ix < bit->bitmap.width;ix++){
+ long buf_x = ix + (pen_x + 0.5) + (double)bit->left ;
+ art_u8 font_alpha;
+
+ if (buf_x < 0 || buf_x >= (long)pys_width) continue;
+ buf_x *= bytes_per_pixel ;
+ font_alpha = *(bit->bitmap.buffer + iy * bit->bitmap.pitch + ix);
+ if (font_alpha > 0){
+ fcolor[3] = (art_u8)((double)font_alpha / gr * falpha);
+ art_rgba_rgba_composite(buffer + buf_y + buf_x ,fcolor,1);
+ }
+ }
+ }
+ break;
+
+ case FT_PIXEL_MODE_MONO:
+ for (iy=0; iy < bit->bitmap.rows; iy++){
+ long buf_y = iy+(pen_y+0.5)-bit->top;
+ if (buf_y < 0 || buf_y >= (long)pys_height) continue;
+ buf_y *= rowstride;
+ for (ix=0;ix < bit->bitmap.width;ix++){
+ long buf_x = ix + (pen_x + 0.5) + (double)bit->left ;
+
+ if (buf_x < 0 || buf_x >= (long)pys_width) continue;
+ buf_x *= bytes_per_pixel ;
+ if ( (fcolor[3] = falpha * ((*(bit->bitmap.buffer + iy * bit->bitmap.pitch + ix/8) >> (7 - (ix % 8))) & 1)) > 0 )
+ art_rgba_rgba_composite(buffer + buf_y + buf_x ,fcolor,1);
+ }
+ }
+ break;
+
+ default:
+ rrd_set_error("unknown freetype pixel mode: %d", bit->bitmap.pixel_mode);
+ break;
}
- error = FT_Load_Glyph( face, glyph_index, FT_LOAD_RENDER );
- if ( error ) break;
- gr = slot->bitmap.num_grays -1;
- for (iy=0; iy < slot->bitmap.rows; iy++){
- long buf_y = iy+(pen_y+0.5)-slot->bitmap_top;
- if (buf_y < 0 || buf_y >= pys_height) continue;
+
+/*
+ for (iy=0; iy < bit->bitmap.rows; iy++){
+ long buf_y = iy+(pen_y+0.5)-bit->top;
+ if (buf_y < 0 || buf_y >= (long)pys_height) continue;
buf_y *= rowstride;
- for (ix=0;ix < slot->bitmap.width;ix++){
- long buf_x = ix + (pen_x + 0.5) + (double)slot->bitmap_left ;
+ for (ix=0;ix < bit->bitmap.width;ix++){
+ long buf_x = ix + (pen_x + 0.5) + (double)bit->left ;
art_u8 font_alpha;
- if (buf_x < 0 || buf_x >= pys_width) continue;
+ if (buf_x < 0 || buf_x >= (long)pys_width) continue;
buf_x *= bytes_per_pixel ;
- font_alpha = *(slot->bitmap.buffer + iy * slot->bitmap.width + ix);
+ font_alpha = *(bit->bitmap.buffer + iy * bit->bitmap.width + ix);
font_alpha = (art_u8)((double)font_alpha / gr * falpha);
for (iz = 0; iz < 3; iz++){
art_u8 *orig = buffer + buf_y + buf_x + iz;
}
}
}
- pen_x += (double)slot->metrics.horiAdvance / 64.0;
+*/
+ FT_Done_Glyph (image);
}
+ gfx_string_destroy(string);
}
}
node = node->next;
while(node){
next = node->next;
art_free(node->path);
- art_free(node->svp);
free(node->text);
free(node->filename);
art_free(node);
node = next;
}
+ art_free(canvas);
return 0;
}
if (info_ptr == NULL)
{
+ png_free(png_ptr,row_pointers);
png_destroy_write_struct(&png_ptr, (png_infopp)NULL);
return (1);
}
png_init_io(png_ptr, fp);
png_set_IHDR (png_ptr, info_ptr,width, height,
- 8, PNG_COLOR_TYPE_RGB,
+ 8, PNG_COLOR_TYPE_RGB_ALPHA,
PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT,
PNG_FILTER_TYPE_DEFAULT);
text[0].compression = PNG_TEXT_COMPRESSION_NONE;
png_set_text (png_ptr, info_ptr, text, 1);
+ /* lets make this fast while ending up with some increass in image size */
+ png_set_filter(png_ptr,0,PNG_FILTER_NONE);
+ /* png_set_filter(png_ptr,0,PNG_FILTER_SUB); */
+ png_set_compression_level(png_ptr,1);
+ /* png_set_compression_strategy(png_ptr,Z_HUFFMAN_ONLY); */
+ /*
+ png_set_filter(png_ptr,PNG_FILTER_TYPE_BASE,PNG_FILTER_SUB);
+ png_set_compression_strategy(png_ptr,Z_HUFFMAN_ONLY);
+ png_set_compression_level(png_ptr,Z_BEST_SPEED); */
+
/* Write header data */
png_write_info (png_ptr, info_ptr);
-
for (i = 0; i < height; i++)
row_pointers[i] = (png_bytep) (buffer + i*rowstride);
-
+
png_write_image(png_ptr, row_pointers);
png_write_end(png_ptr, info_ptr);
+ png_free(png_ptr,row_pointers);
png_destroy_write_struct(&png_ptr, &info_ptr);
return 1;
}
+/* ----- COMMON ROUTINES for pdf, svg and eps */
+#define min3(a, b, c) (a < b ? (a < c ? a : c) : (b < c ? b : c))
+#define max3(a, b, c) (a > b ? (a > c ? a : c) : (b > c ? b : c))
+
+#define PDF_CALC_DEBUG 0
+
+typedef struct pdf_point
+{
+ double x, y;
+} pdf_point;
+
+typedef struct
+{
+ double ascender, descender, baselineY;
+ pdf_point sizep, minp, maxp;
+ double x, y, tdx, tdy;
+ double r, cos_r, sin_r;
+ double ma, mb, mc, md, mx, my; /* pdf coord matrix */
+ double tmx, tmy; /* last 2 coords of text coord matrix */
+#if PDF_CALC_DEBUG
+ int debug;
+#endif
+} pdf_coords;
+
+#if PDF_CALC_DEBUG
+static void pdf_dump_calc(gfx_node_t *node, pdf_coords *g)
+{
+ fprintf(stderr, "PDF CALC =============================\n");
+ fprintf(stderr, " '%s' at %f pt\n", node->text, node->size);
+ fprintf(stderr, " align h = %s, v = %s, sizep = %f, %f\n",
+ (node->halign == GFX_H_RIGHT ? "r" :
+ (node->halign == GFX_H_CENTER ? "c" :
+ (node->halign == GFX_H_LEFT ? "l" : "N"))),
+ (node->valign == GFX_V_TOP ? "t" :
+ (node->valign == GFX_V_CENTER ? "c" :
+ (node->valign == GFX_V_BOTTOM ? "b" : "N"))),
+ g->sizep.x, g->sizep.y);
+ fprintf(stderr, " r = %f = %f, cos = %f, sin = %f\n",
+ g->r, node->angle, g->cos_r, g->sin_r);
+ fprintf(stderr, " ascender = %f, descender = %f, baselineY = %f\n",
+ g->ascender, g->descender, g->baselineY);
+ fprintf(stderr, " sizep: %f, %f\n", g->sizep.x, g->sizep.y);
+ fprintf(stderr, " minp: %f, %f maxp = %f, %f\n",
+ g->minp.x, g->minp.y, g->maxp.x, g->maxp.y);
+ fprintf(stderr, " x = %f, y = %f\n", g->x, g->y);
+ fprintf(stderr, " tdx = %f, tdy = %f\n", g->tdx, g->tdy);
+ fprintf(stderr, " GM = %f, %f, %f, %f, %f, %f\n",
+ g->ma, g->mb, g->mc, g->md, g->mx, g->my);
+ fprintf(stderr, " TM = %f, %f, %f, %f, %f, %f\n",
+ g->ma, g->mb, g->mc, g->md, g->tmx, g->tmy);
+}
+#endif
+
+#if PDF_CALC_DEBUG
+#define PDF_DD(x) if (g->debug) x;
+#else
+#define PDF_DD(x)
+#endif
+
+static void pdf_rotate(pdf_coords *g, pdf_point *p)
+{
+ double x2 = g->cos_r * p->x - g->sin_r * p->y;
+ double y2 = g->sin_r * p->x + g->cos_r * p->y;
+ PDF_DD( fprintf(stderr, " rotate(%f, %f) -> %f, %f\n", p->x, p->y, x2, y2))
+ p->x = x2;
+ p->y = y2;
+}
+
+
+static void pdf_calc(int page_height, gfx_node_t *node, pdf_coords *g)
+{
+ pdf_point a, b, c;
+#if PDF_CALC_DEBUG
+ /* g->debug = !!strstr(node->text, "RevProxy-1") || !!strstr(node->text, "08:00"); */
+ g->debug = !!strstr(node->text, "sekunder") || !!strstr(node->text, "Web");
+#endif
+ g->x = node->x;
+ g->y = page_height - node->y;
+ if (node->angle) {
+ g->r = 2 * M_PI * node->angle / 360.0;
+ g->cos_r = cos(g->r);
+ g->sin_r = sin(g->r);
+ } else {
+ g->r = 0;
+ g->cos_r = 1;
+ g->sin_r = 0;
+ }
+ g->ascender = afm_get_ascender(node->filename, node->size);
+ g->descender = afm_get_descender(node->filename, node->size);
+ g->sizep.x = afm_get_text_width(0, node->filename, node->size, node->tabwidth, node->text);
+ /* seems like libart ignores the descender when doing vertial-align = bottom,
+ so we do that too, to get labels v-aligning properly */
+ g->sizep.y = -g->ascender; /* + afm_get_descender(font->ps_font, node->size); */
+ g->baselineY = -g->ascender - g->sizep.y / 2;
+ a.x = g->sizep.x; a.y = g->sizep.y;
+ b.x = g->sizep.x; b.y = 0;
+ c.x = 0; c.y = g->sizep.y;
+ if (node->angle) {
+ pdf_rotate(g, &a);
+ pdf_rotate(g, &b);
+ pdf_rotate(g, &c);
+ }
+ g->minp.x = min3(a.x, b.x, c.x);
+ g->minp.y = min3(a.y, b.y, c.y);
+ g->maxp.x = max3(a.x, b.x, c.x);
+ g->maxp.y = max3(a.y, b.y, c.y);
+ /* The alignment parameters in node->valign and node->halign
+ specifies the alignment in the non-rotated coordinate system
+ (very unlike pdf/postscript), which complicates matters.
+ */
+ switch (node->halign) {
+ case GFX_H_RIGHT: g->tdx = -g->maxp.x; break;
+ case GFX_H_CENTER: g->tdx = -(g->maxp.x + g->minp.x) / 2; break;
+ case GFX_H_LEFT: g->tdx = -g->minp.x; break;
+ case GFX_H_NULL: g->tdx = 0; break;
+ }
+ switch(node->valign){
+ case GFX_V_TOP: g->tdy = -g->maxp.y; break;
+ case GFX_V_CENTER: g->tdy = -(g->maxp.y + g->minp.y) / 2; break;
+ case GFX_V_BOTTOM: g->tdy = -g->minp.y; break;
+ case GFX_V_NULL: g->tdy = 0; break;
+ }
+ g->ma = g->cos_r;
+ g->mb = g->sin_r;
+ g->mc = -g->sin_r;
+ g->md = g->cos_r;
+ g->mx = g->x + g->tdx;
+ g->my = g->y + g->tdy;
+ g->tmx = g->mx - g->ascender * g->mc;
+ g->tmy = g->my - g->ascender * g->md;
+ PDF_DD(pdf_dump_calc(node, g))
+}
+
/* ------- SVG -------
SVG reference:
http://www.w3.org/TR/SVG/
*/
static int svg_indent = 0;
static int svg_single_line = 0;
-static const char *svg_default_font = "Helvetica";
+static const char *svg_default_font = "-dummy-";
+typedef struct svg_dash
+{
+ int dash_enable;
+ double dash_adjust, dash_len, dash_offset;
+ double adjusted_on, adjusted_off;
+} svg_dash;
+
static void svg_print_indent(FILE *fp)
{
}
}
-static void svg_write_number(FILE *fp, double d)
+static void svg_format_number(char *buf, int bufsize, double d)
{
/* omit decimals if integer to reduce filesize */
- char buf[60], *p;
- snprintf(buf, sizeof(buf), "%.2f", d);
+ char *p;
+ snprintf(buf, bufsize, "%.2f", d);
p = buf; /* doesn't trust snprintf return value */
while (*p)
p++;
*p = '\0'; /* zap trailing dot */
break;
}
- fputs(buf, fp);
}
+static void svg_write_number(FILE *fp, double d)
+{
+ char buf[60];
+ svg_format_number(buf, sizeof(buf), d);
+ fputs(buf, fp);
+}
+
static int svg_color_is_black(int c)
{
/* gfx_color_t is RRGGBBAA */
}
fputs("\"", fp);
if (opacity != 0xFF) {
- fprintf(fp, " stroke-opacity=\"");
+ fprintf(fp, " opacity=\"");
svg_write_number(fp, opacity / 255.0);
fputs("\"", fp);
}
}
+static void svg_get_dash(gfx_node_t *node, svg_dash *d)
+{
+ double offset;
+ int mult;
+ if (node->dash_on <= 0 || node->dash_off <= 0) {
+ d->dash_enable = 0;
+ return;
+ }
+ d->dash_enable = 1;
+ d->dash_len = node->dash_on + node->dash_off;
+ /* dash on/off adjustment due to round caps */
+ d->dash_adjust = 0.8 * node->size;
+ d->adjusted_on = node->dash_on - d->dash_adjust;
+ if (d->adjusted_on < 0.01)
+ d->adjusted_on = 0.01;
+ d->adjusted_off = d->dash_len - d->adjusted_on;
+ /* dash offset calc */
+ if (node->path[0].x == node->path[1].x) /* only good for horz/vert lines */
+ offset = node->path[0].y;
+ else
+ offset = node->path[0].x;
+ mult = (int)fabs(offset / d->dash_len);
+ d->dash_offset = offset - mult * d->dash_len;
+ if (node->path[0].x < node->path[1].x || node->path[0].y < node->path[1].y)
+ d->dash_offset = d->dash_len - d->dash_offset;
+}
+
+static int svg_dash_equal(svg_dash *a, svg_dash *b)
+{
+ if (a->dash_enable != b->dash_enable)
+ return 0;
+ if (a->adjusted_on != b->adjusted_on)
+ return 0;
+ if (a->adjusted_off != b->adjusted_off)
+ return 0;
+ /* rest of properties will be the same when on+off are */
+ return 1;
+}
+
static void svg_common_path_attributes(FILE *fp, gfx_node_t *node)
{
+ svg_dash dash_info;
+ svg_get_dash(node, &dash_info);
fputs(" stroke-width=\"", fp);
svg_write_number(fp, node->size);
fputs("\"", fp);
svg_write_color(fp, node->color, "stroke");
fputs(" fill=\"none\"", fp);
- if (node->dash_on > 0 && node->dash_off > 0) {
+ if (dash_info.dash_enable) {
+ if (dash_info.dash_offset != 0) {
+ fputs(" stroke-dashoffset=\"", fp);
+ svg_write_number(fp, dash_info.dash_offset);
+ fputs("\"", fp);
+ }
fputs(" stroke-dasharray=\"", fp);
- svg_write_number(fp, node->dash_on);
+ svg_write_number(fp, dash_info.adjusted_on);
fputs(",", fp);
- svg_write_number(fp, node->dash_off);
+ svg_write_number(fp, dash_info.adjusted_off);
fputs("\"", fp);
}
}
static void svg_text(FILE *fp, gfx_node_t *node)
{
- double x = node->x - LINEOFFSET;
- double y = node->y - LINEOFFSET;
+ pdf_coords g;
+ const char *fontname;
+ /* as svg has 0,0 in top-left corner (like most screens) instead of
+ bottom-left corner like pdf and eps, we have to fake the coords
+ using offset and inverse sin(r) value */
+ int page_height = 1000;
+ pdf_calc(page_height, node, &g);
if (node->angle != 0) {
svg_start_tag(fp, "g");
- fputs(" transform=\"translate(", fp);
- svg_write_number(fp, x);
- fputs(",", fp);
- svg_write_number(fp, y);
- fputs(") rotate(", fp);
- svg_write_number(fp, node->angle);
- fputs(")\"", fp);
- x = y = 0;
+ /* can't use svg_write_number as 2 decimals is far from enough to avoid
+ skewed text */
+ fprintf(fp, " transform=\"matrix(%f,%f,%f,%f,%f,%f)\"",
+ g.ma, -g.mb, -g.mc, g.md, g.tmx, page_height - g.tmy);
svg_close_tag(fp);
}
- switch (node->valign) {
- case GFX_V_TOP: y += node->size; break;
- case GFX_V_CENTER: y += node->size / 2; break;
- case GFX_V_BOTTOM: break;
- case GFX_V_NULL: break;
- }
svg_start_tag(fp, "text");
- fputs(" x=\"", fp);
- svg_write_number(fp, x);
- fputs("\" y=\"", fp);
- svg_write_number(fp, y);
- if (strcmp(node->filename, svg_default_font))
- fprintf(fp, " font-family=\"%s\"", node->filename);
- fputs("\" font-size=\"", fp);
+ if (!node->angle) {
+ fputs(" x=\"", fp);
+ svg_write_number(fp, g.tmx);
+ fputs("\" y=\"", fp);
+ svg_write_number(fp, page_height - g.tmy);
+ fputs("\"", fp);
+ }
+ fontname = afm_get_font_name(node->filename);
+ if (strcmp(fontname, svg_default_font))
+ fprintf(fp, " font-family=\"%s\"", fontname);
+ fputs(" font-size=\"", fp);
svg_write_number(fp, node->size);
fputs("\"", fp);
if (!svg_color_is_black(node->color))
svg_write_color(fp, node->color, "fill");
- switch (node->halign) {
- case GFX_H_RIGHT: fputs(" text-anchor=\"end\"", fp); break;
- case GFX_H_CENTER: fputs(" text-anchor=\"middle\"", fp); break;
- case GFX_H_LEFT: break;
- case GFX_H_NULL: break;
- }
svg_close_tag_single_line(fp);
/* support for node->tabwidth missing */
svg_write_text(fp, node->text);
art_u32 width, art_u32 height,
gfx_color_t background, FILE *fp){
gfx_node_t *node = canvas->firstnode;
+ /* Find the first font used, and assume it is the mostly used
+ one. It reduces the number of font-familty attributes. */
+ while (node) {
+ if (node->type == GFX_TEXT && node->filename) {
+ svg_default_font = afm_get_font_name(node->filename);
+ break;
+ }
+ node = node->next;
+ }
fputs(
"<?xml version=\"1.0\" standalone=\"no\"?>\n"
"<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.0//EN\"\n"
" \"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd\">\n"
"<!--\n"
-" SVG file created by RRDtool,\n"
-" Tobias Oetiker <tobi@oetike.ch>, http://tobi.oetiker.ch\n"
+" SVG file created by\n"
+" RRDtool " PACKAGE_VERSION " Tobias Oetiker, http://tobi.oetiker.ch\n"
"\n"
" The width/height attributes in the outhermost svg node\n"
" are just default sizes for the browser which is used\n"
fprintf(fp, " x=\"0\" y=\"0\" width=\"%d\" height=\"%d\"", width, height);
svg_write_color(fp, background, "fill");
svg_close_tag_empty_node(fp);
+ node = canvas->firstnode;
while (node) {
switch (node->type) {
case GFX_LINE:
double font_size;
double line_width;
int linecap, linejoin;
+ int has_dash;
} eps_state;
static void eps_set_color(eps_state *state, gfx_color_t color)
{
+#if USE_EPS_FAKE_ALPHA
+ double a1, a2;
+#endif
+ /* gfx_color_t is RRGGBBAA */
+ if (state->color == color)
+ return;
+#if USE_EPS_FAKE_ALPHA
+ a1 = (color & 255) / 255.0;
+ a2 = 255 * (1 - a1);
+#define eps_color_calc(x) (int)( ((x) & 255) * a1 + a2)
+#else
+#define eps_color_calc(x) (int)( (x) & 255)
+#endif
/* gfx_color_t is RRGGBBAA */
if (state->color == color)
return;
fprintf(state->fp, "%d %d %d Rgb\n",
- (int)((color >> 24) & 255),
- (int)((color >> 16) & 255),
- (int)((color >> 8) & 255));
+ eps_color_calc(color >> 24),
+ eps_color_calc(color >> 16),
+ eps_color_calc(color >> 8));
state->color = color;
}
gfx_node_t *node;
fputs(
"%!PS-Adobe-3.0 EPSF-3.0\n"
- "%%Creator: RRDtool 1.1.x, Tobias Oetiker, http://tobi.oetiker.ch\n"
+ "%%Creator: RRDtool " PACKAGE_VERSION " Tobias Oetiker, http://tobi.oetiker.ch\n"
/* can't like weird chars here */
- "%%Title: (RRDTool output)\n"
+ "%%Title: (RRDtool output)\n"
"%%DocumentData: Clean7Bit\n"
"", state->fp);
fprintf(state->fp, "%%%%BoundingBox: 0 0 %d %d\n",
"/CP {closepath} bd\n"
"/WS {setlinewidth stroke} bd\n"
"/F {fill} bd\n"
- "/TaL { } bd\n"
- "/TaC {dup stringwidth pop neg 2 div 0 rmoveto } bd\n"
- "/TaR {dup stringwidth pop neg 0 rmoveto } bd\n"
- "/TL {moveto TaL show} bd\n"
- "/TC {moveto TaC show} bd\n"
- "/TR {moveto TaR show} bd\n"
+ "/T1 {gsave} bd\n"
+ "/T2 {concat 0 0 moveto show grestore} bd\n"
+ "/T {moveto show} bd\n"
"/Rgb { 255.0 div 3 1 roll\n"
" 255.0 div 3 1 roll \n"
" 255.0 div 3 1 roll setrgbcolor } bd\n"
return 0;
}
+static void eps_clear_dash(eps_state *state)
+{
+ if (!state->has_dash)
+ return;
+ state->has_dash = 0;
+ fputs("[1 0] 0 setdash\n", state->fp);
+}
+
static void eps_write_linearea(eps_state *state, gfx_node_t *node)
{
int i;
FILE *fp = state->fp;
int useOffset = 0;
+ int clearDashIfAny = 1;
eps_set_color(state, node->color);
if (node->type == GFX_LINE) {
+ svg_dash dash_info;
if (state->linecap != 1) {
fputs("1 setlinecap\n", fp);
state->linecap = 1;
fputs("1 setlinejoin\n", fp);
state->linejoin = 1;
}
+ svg_get_dash(node, &dash_info);
+ if (dash_info.dash_enable) {
+ clearDashIfAny = 0;
+ state->has_dash = 1;
+ fputs("[", fp);
+ svg_write_number(fp, dash_info.adjusted_on);
+ fputs(" ", fp);
+ svg_write_number(fp, dash_info.adjusted_off);
+ fputs("] ", fp);
+ svg_write_number(fp, dash_info.dash_offset);
+ fputs(" setdash\n", fp);
+ }
}
+ if (clearDashIfAny)
+ eps_clear_dash(state);
for (i = 0; i < node->points; i++) {
ArtVpath *vec = node->path + i;
double x = vec->x;
static void eps_write_text(eps_state *state, gfx_node_t *node)
{
FILE *fp = state->fp;
- const unsigned char *p;
+ const char *p;
const char *ps_font = afm_get_font_postscript_name(node->filename);
- char align = 'L';
- double x = node->x;
- double y = state->page_height - node->y, ydelta = 0;
int lineLen = 0;
+ pdf_coords g;
+ pdf_calc(state->page_height, node, &g);
eps_set_color(state, node->color);
if (strcmp(ps_font, state->font) || node->size != state->font_size) {
state->font = ps_font;
svg_write_number(fp, state->font_size);
fprintf(fp, " SetFont-%s\n", state->font);
}
+ if (node->angle)
+ fputs("T1 ", fp);
fputs("(", fp);
lineLen = 20;
- for (p = (const unsigned char*)node->text; *p; p++) {
- if (lineLen > 70) {
+ p = node->text;
+ while (1) {
+ unsigned char ch = *(unsigned char*)p;
+ if (!ch)
+ break;
+ if (++lineLen > 70) {
fputs("\\\n", fp); /* backslash and \n */
lineLen = 0;
}
- switch (*p) {
+ switch (ch) {
+ case '%':
case '(':
case ')':
case '\\':
+ fputc('\\', fp);
+ fputc(ch, fp);
+ break;
case '\n':
+ fputs("\\n", fp);
+ break;
case '\r':
+ fputs("\\r", fp);
+ break;
case '\t':
- fputc('\\', fp);
- lineLen++;
- /* fall-through */
+ fputs("\\t", fp);
+ break;
default:
- if (*p >= 126)
- fprintf(fp, "\\%03o", *p);
- else
- fputc(*p, fp);
- lineLen++;
- }
- }
- fputs(") ", fp);
- switch(node->valign){
- case GFX_V_TOP: ydelta = -node->size; break;
- case GFX_V_CENTER: ydelta = -node->size / 3.0; break;
- case GFX_V_BOTTOM: break;
- case GFX_V_NULL: break;
- }
- if (node->angle == 0)
- y += ydelta;
- switch (node->halign) {
- case GFX_H_RIGHT: align = 'R'; break;
- case GFX_H_CENTER: align = 'C'; break;
- case GFX_H_LEFT: align= 'L'; break;
- case GFX_H_NULL: align= 'L'; break;
+ if (ch >= 126 || ch < 32) {
+ fprintf(fp, "\\%03o", ch);
+ lineLen += 3;
+ } else {
+ fputc(ch, fp);
+ }
+ }
+ p++;
}
- if (node->angle != 0) {
- fputs("\n", fp);
- fputs(" gsave ", fp);
- svg_write_number(fp, x);
- fputc(' ', fp);
- svg_write_number(fp, y);
- fputs(" translate ", fp);
- svg_write_number(fp, -node->angle);
- fputs(" rotate 0 ", fp);
- svg_write_number(fp, ydelta);
- fputs(" moveto ", fp);
- fprintf(fp, "Ta%c", align);
- fputs(" show grestore\n", fp);
+ if (node->angle) {
+ /* can't use svg_write_number as 2 decimals is far from enough to avoid
+ skewed text */
+ fprintf(fp, ") [%f %f %f %f %f %f] T2\n",
+ g.ma, g.mb, g.mc, g.md, g.tmx, g.tmy);
} else {
- svg_write_number(fp, x);
- fputc(' ', fp);
- svg_write_number(fp, y);
- fputs(" T", fp);
- fputc(align, fp);
- fputc('\n', fp);
+ fputs(") ", fp);
+ svg_write_number(fp, g.tmx);
+ fputs(" ", fp);
+ svg_write_number(fp, g.tmy);
+ fputs(" T\n", fp);
}
}
state.font_list = NULL;
state.linecap = -1;
state.linejoin = -1;
+ state.has_dash = 0;
+ state.line_width = 1;
if (eps_prologue(&state) == -1)
return -1;
eps_set_color(&state, background);
}
return 0;
}
+
+/* ------- PDF -------
+ PDF references page:
+ http://partners.adobe.com/public/developer/pdf/index_reference.html
+*/
+
+typedef struct pdf_buffer
+{
+ int id, is_obj, is_dict, is_stream, pdf_file_pos;
+ char *data;
+ int alloc_size, current_size;
+ struct pdf_buffer *previous_buffer, *next_buffer;
+ struct pdf_state *state;
+} pdf_buffer;
+
+typedef struct pdf_font
+{
+ const char *ps_font;
+ pdf_buffer obj;
+ struct pdf_font *next;
+} pdf_font;
+
+typedef struct pdf_state
+{
+ FILE *fp;
+ gfx_canvas_t *canvas;
+ art_u32 page_width, page_height;
+ pdf_font *font_list;
+ pdf_buffer *first_buffer, *last_buffer;
+ int pdf_file_pos;
+ int has_failed;
+ /*--*/
+ gfx_color_t stroke_color, fill_color;
+ int font_id;
+ double font_size;
+ double line_width;
+ svg_dash dash;
+ int linecap, linejoin;
+ int last_obj_id;
+ /*--*/
+ pdf_buffer pdf_header;
+ pdf_buffer info_obj, catalog_obj, pages_obj, page1_obj;
+ pdf_buffer fontsdict_obj;
+ pdf_buffer graph_stream;
+} pdf_state;
+
+static void pdf_init_buffer(pdf_state *state, pdf_buffer *buf)
+{
+ int initial_size = 32;
+ buf->state = state;
+ buf->id = -42;
+ buf->alloc_size = 0;
+ buf->current_size = 0;
+ buf->data = (char*)malloc(initial_size);
+ buf->is_obj = 0;
+ buf->previous_buffer = NULL;
+ buf->next_buffer = NULL;
+ if (buf->data == NULL) {
+ rrd_set_error("malloc for pdf_buffer data");
+ state->has_failed = 1;
+ return;
+ }
+ buf->alloc_size = initial_size;
+ if (state->last_buffer)
+ state->last_buffer->next_buffer = buf;
+ if (state->first_buffer == NULL)
+ state->first_buffer = buf;
+ buf->previous_buffer = state->last_buffer;
+ state->last_buffer = buf;
+}
+
+static void pdf_put(pdf_buffer *buf, const char *text, int len)
+{
+ if (len <= 0)
+ return;
+ if (buf->alloc_size < buf->current_size + len) {
+ int new_size = buf->alloc_size;
+ char *new_buf;
+ while (new_size < buf->current_size + len)
+ new_size *= 4;
+ new_buf = (char*)malloc(new_size);
+ if (new_buf == NULL) {
+ rrd_set_error("re-malloc for pdf_buffer data");
+ buf->state->has_failed = 1;
+ return;
+ }
+ memcpy(new_buf, buf->data, buf->current_size);
+ free(buf->data);
+ buf->data = new_buf;
+ buf->alloc_size = new_size;
+ }
+ memcpy(buf->data + buf->current_size, text, len);
+ buf->current_size += len;
+}
+
+static void pdf_puts(pdf_buffer *buf, const char *text)
+{
+ pdf_put(buf, text, strlen(text));
+}
+
+static void pdf_indent(pdf_buffer *buf)
+{
+ pdf_puts(buf, "\t");
+}
+
+static void pdf_putsi(pdf_buffer *buf, const char *text)
+{
+ pdf_indent(buf);
+ pdf_puts(buf, text);
+}
+
+static void pdf_putint(pdf_buffer *buf, int i)
+{
+ char tmp[20];
+ sprintf(tmp, "%d", i);
+ pdf_puts(buf, tmp);
+}
+
+static void pdf_putnumber(pdf_buffer *buf, double d)
+{
+ char tmp[50];
+ svg_format_number(tmp, sizeof(tmp), d);
+ pdf_puts(buf, tmp);
+}
+
+static void pdf_put_string_contents(pdf_buffer *buf, const char *text)
+{
+ const char *p = text;
+ while (1) {
+ unsigned char ch = *(unsigned char*)p;
+ switch (ch) {
+ case 0: return;
+ case '(':
+ case ')':
+ case '\\':
+ pdf_puts(buf, "\\");
+ pdf_put(buf, p, 1);
+ break;
+ case '\n':
+ pdf_puts(buf, "\\n");
+ break;
+ case '\r':
+ pdf_puts(buf, "\\r");
+ break;
+ case '\t':
+ pdf_puts(buf, "\\t");
+ break;
+ default:
+ if (ch >= 126 || ch < 32) {
+ char tmp[10];
+ snprintf(tmp, sizeof(tmp), "\\%03o", ch);
+ pdf_puts(buf, tmp);
+ } else {
+ pdf_put(buf, p, 1);
+ }
+ }
+ p++;
+ }
+}
+
+static void pdf_init_object(pdf_state *state, pdf_buffer *buf)
+{
+ pdf_init_buffer(state, buf);
+ buf->id = ++state->last_obj_id;
+ buf->is_obj = 1;
+ buf->is_stream = 0;
+}
+
+static void pdf_init_dict(pdf_state *state, pdf_buffer *buf)
+{
+ pdf_init_object(state, buf);
+ buf->is_dict = 1;
+}
+
+static void pdf_set_color(pdf_buffer *buf, gfx_color_t color,
+ gfx_color_t *current_color, const char *op)
+{
+#if USE_PDF_FAKE_ALPHA
+ double a1, a2;
+#endif
+ /* gfx_color_t is RRGGBBAA */
+ if (*current_color == color)
+ return;
+#if USE_PDF_FAKE_ALPHA
+ a1 = (color & 255) / 255.0;
+ a2 = 1 - a1;
+#define pdf_color_calc(x) ( ((x) & 255) / 255.0 * a1 + a2)
+#else
+#define pdf_color_calc(x) ( ((x) & 255) / 255.0)
+#endif
+ pdf_putnumber(buf, pdf_color_calc(color >> 24));
+ pdf_puts(buf, " ");
+ pdf_putnumber(buf, pdf_color_calc(color >> 16));
+ pdf_puts(buf, " ");
+ pdf_putnumber(buf, pdf_color_calc(color >> 8));
+ pdf_puts(buf, " ");
+ pdf_puts(buf, op);
+ pdf_puts(buf, "\n");
+ *current_color = color;
+}
+
+static void pdf_set_stroke_color(pdf_buffer *buf, gfx_color_t color)
+{
+ pdf_set_color(buf, color, &buf->state->stroke_color, "RG");
+}
+
+static void pdf_set_fill_color(pdf_buffer *buf, gfx_color_t color)
+{
+ pdf_set_color(buf, color, &buf->state->fill_color, "rg");
+}
+
+static pdf_font *pdf_find_font(pdf_state *state, gfx_node_t *node)
+{
+ const char *ps_font = afm_get_font_postscript_name(node->filename);
+ pdf_font *ef;
+ for (ef = state->font_list; ef; ef = ef->next) {
+ if (!strcmp(ps_font, ef->ps_font))
+ return ef;
+ }
+ return NULL;
+}
+
+static void pdf_add_font(pdf_state *state, gfx_node_t *node)
+{
+ pdf_font *ef = pdf_find_font(state, node);
+ if (ef)
+ return;
+ ef = malloc(sizeof(pdf_font));
+ if (ef == NULL) {
+ rrd_set_error("malloc for pdf_font");
+ state->has_failed = 1;
+ return;
+ }
+ pdf_init_dict(state, &ef->obj);
+ ef->next = state->font_list;
+ ef->ps_font = afm_get_font_postscript_name(node->filename);
+ state->font_list = ef;
+ /* fonts dict */
+ pdf_putsi(&state->fontsdict_obj, "/F");
+ pdf_putint(&state->fontsdict_obj, ef->obj.id);
+ pdf_puts(&state->fontsdict_obj, " ");
+ pdf_putint(&state->fontsdict_obj, ef->obj.id);
+ pdf_puts(&state->fontsdict_obj, " 0 R\n");
+ /* fonts def */
+ pdf_putsi(&ef->obj, "/Type /Font\n");
+ pdf_putsi(&ef->obj, "/Subtype /Type1\n");
+ pdf_putsi(&ef->obj, "/Name /F");
+ pdf_putint(&ef->obj, ef->obj.id);
+ pdf_puts(&ef->obj, "\n");
+ pdf_putsi(&ef->obj, "/BaseFont /");
+ pdf_puts(&ef->obj, ef->ps_font);
+ pdf_puts(&ef->obj, "\n");
+ pdf_putsi(&ef->obj, "/Encoding /WinAnsiEncoding\n");
+ /* 'Cp1252' (this is latin 1 extended with 27 characters;
+ the encoding is also known as 'winansi')
+ http://www.lowagie.com/iText/tutorial/ch09.html */
+}
+
+static void pdf_create_fonts(pdf_state *state)
+{
+ gfx_node_t *node;
+ for (node = state->canvas->firstnode; node; node = node->next) {
+ if (node->type == GFX_TEXT)
+ pdf_add_font(state, node);
+ }
+}
+
+static void pdf_write_linearea(pdf_state *state, gfx_node_t *node)
+{
+ int i;
+ pdf_buffer *s = &state->graph_stream;
+ if (node->type == GFX_LINE) {
+ svg_dash dash_info;
+ svg_get_dash(node, &dash_info);
+ if (!svg_dash_equal(&dash_info, &state->dash)) {
+ state->dash = dash_info;
+ if (dash_info.dash_enable) {
+ pdf_puts(s, "[");
+ pdf_putnumber(s, dash_info.adjusted_on);
+ pdf_puts(s, " ");
+ pdf_putnumber(s, dash_info.adjusted_off);
+ pdf_puts(s, "] ");
+ pdf_putnumber(s, dash_info.dash_offset);
+ pdf_puts(s, " d\n");
+ } else {
+ pdf_puts(s, "[] 0 d\n");
+ }
+ }
+ pdf_set_stroke_color(s, node->color);
+ if (state->linecap != 1) {
+ pdf_puts(s, "1 j\n");
+ state->linecap = 1;
+ }
+ if (state->linejoin != 1) {
+ pdf_puts(s, "1 J\n");
+ state->linejoin = 1;
+ }
+ if (node->size != state->line_width) {
+ state->line_width = node->size;
+ pdf_putnumber(s, state->line_width);
+ pdf_puts(s, " w\n");
+ }
+ } else {
+ pdf_set_fill_color(s, node->color);
+ }
+ for (i = 0; i < node->points; i++) {
+ ArtVpath *vec = node->path + i;
+ double x = vec->x;
+ double y = state->page_height - vec->y;
+ if (node->type == GFX_AREA) {
+ x += LINEOFFSET; /* adjust for libart handling of areas */
+ y -= LINEOFFSET;
+ }
+ switch (vec->code) {
+ case ART_MOVETO_OPEN: /* fall-through */
+ case ART_MOVETO:
+ pdf_putnumber(s, x);
+ pdf_puts(s, " ");
+ pdf_putnumber(s, y);
+ pdf_puts(s, " m\n");
+ break;
+ case ART_LINETO:
+ pdf_putnumber(s, x);
+ pdf_puts(s, " ");
+ pdf_putnumber(s, y);
+ pdf_puts(s, " l\n");
+ break;
+ case ART_CURVETO: break; /* unsupported */
+ case ART_END: break; /* nop */
+ }
+ }
+ if (node->type == GFX_LINE) {
+ pdf_puts(s, node->closed_path ? "s\n" : "S\n");
+ } else {
+ pdf_puts(s, "f\n");
+ }
+}
+
+
+static void pdf_write_matrix(pdf_state *state, gfx_node_t *node, pdf_coords *g, int useTM)
+{
+ char tmp[150];
+ pdf_buffer *s = &state->graph_stream;
+ if (node->angle == 0) {
+ pdf_puts(s, "1 0 0 1 ");
+ pdf_putnumber(s, useTM ? g->tmx : g->mx);
+ pdf_puts(s, " ");
+ pdf_putnumber(s, useTM ? g->tmy : g->my);
+ } else {
+ /* can't use svg_write_number as 2 decimals is far from enough to avoid
+ skewed text */
+ sprintf(tmp, "%f %f %f %f %f %f",
+ g->ma, g->mb, g->mc, g->md,
+ useTM ? g->tmx : g->mx,
+ useTM ? g->tmy : g->my);
+ pdf_puts(s, tmp);
+ }
+}
+
+static void pdf_write_text(pdf_state *state, gfx_node_t *node,
+ int last_was_text, int next_is_text)
+{
+ pdf_coords g;
+ pdf_buffer *s = &state->graph_stream;
+ pdf_font *font = pdf_find_font(state, node);
+ if (font == NULL) {
+ rrd_set_error("font disappeared");
+ state->has_failed = 1;
+ return;
+ }
+ pdf_calc(state->page_height, node, &g);
+#if PDF_CALC_DEBUG
+ pdf_puts(s, "q % debug green box\n");
+ pdf_write_matrix(state, node, &g, 0);
+ pdf_puts(s, " cm\n");
+ pdf_set_fill_color(s, 0x90FF9000);
+ pdf_puts(s, "0 0.4 0 rg\n");
+ pdf_puts(s, "0 0 ");
+ pdf_putnumber(s, g.sizep.x);
+ pdf_puts(s, " ");
+ pdf_putnumber(s, g.sizep.y);
+ pdf_puts(s, " re\n");
+ pdf_puts(s, "f\n");
+ pdf_puts(s, "Q\n");
+#endif
+ pdf_set_fill_color(s, node->color);
+ if (PDF_CALC_DEBUG || !last_was_text)
+ pdf_puts(s, "BT\n");
+ if (state->font_id != font->obj.id || node->size != state->font_size) {
+ state->font_id = font->obj.id;
+ state->font_size = node->size;
+ pdf_puts(s, "/F");
+ pdf_putint(s, font->obj.id);
+ pdf_puts(s, " ");
+ pdf_putnumber(s, node->size);
+ pdf_puts(s, " Tf\n");
+ }
+ pdf_write_matrix(state, node, &g, 1);
+ pdf_puts(s, " Tm\n");
+ pdf_puts(s, "(");
+ pdf_put_string_contents(s, node->text);
+ pdf_puts(s, ") Tj\n");
+ if (PDF_CALC_DEBUG || !next_is_text)
+ pdf_puts(s, "ET\n");
+}
+
+static void pdf_write_content(pdf_state *state)
+{
+ gfx_node_t *node;
+ int last_was_text = 0, next_is_text;
+ for (node = state->canvas->firstnode; node; node = node->next) {
+ switch (node->type) {
+ case GFX_LINE:
+ case GFX_AREA:
+ pdf_write_linearea(state, node);
+ break;
+ case GFX_TEXT:
+ next_is_text = node->next && node->next->type == GFX_TEXT;
+ pdf_write_text(state, node, last_was_text, next_is_text);
+ break;
+ }
+ last_was_text = node->type == GFX_TEXT;
+ }
+}
+
+static void pdf_init_document(pdf_state *state)
+{
+ pdf_init_buffer(state, &state->pdf_header);
+ pdf_init_dict(state, &state->catalog_obj);
+ pdf_init_dict(state, &state->info_obj);
+ pdf_init_dict(state, &state->pages_obj);
+ pdf_init_dict(state, &state->page1_obj);
+ pdf_init_dict(state, &state->fontsdict_obj);
+ pdf_create_fonts(state);
+ if (state->has_failed)
+ return;
+ /* make stream last object in file */
+ pdf_init_object(state, &state->graph_stream);
+ state->graph_stream.is_stream = 1;
+}
+
+static void pdf_setup_document(pdf_state *state)
+{
+ const char *creator = "RRDtool " PACKAGE_VERSION " Tobias Oetiker, http://tobi.oetiker.ch";
+ /* all objects created by now, so init code can reference them */
+ /* HEADER */
+ pdf_puts(&state->pdf_header, "%PDF-1.3\n");
+ /* following 8 bit comment is recommended by Adobe for
+ indicating binary file to file transfer applications */
+ pdf_puts(&state->pdf_header, "%\xE2\xE3\xCF\xD3\n");
+ /* INFO */
+ pdf_putsi(&state->info_obj, "/Creator (");
+ pdf_put_string_contents(&state->info_obj, creator);
+ pdf_puts(&state->info_obj, ")\n");
+ /* CATALOG */
+ pdf_putsi(&state->catalog_obj, "/Type /Catalog\n");
+ pdf_putsi(&state->catalog_obj, "/Pages ");
+ pdf_putint(&state->catalog_obj, state->pages_obj.id);
+ pdf_puts(&state->catalog_obj, " 0 R\n");
+ /* PAGES */
+ pdf_putsi(&state->pages_obj, "/Type /Pages\n");
+ pdf_putsi(&state->pages_obj, "/Kids [");
+ pdf_putint(&state->pages_obj, state->page1_obj.id);
+ pdf_puts(&state->pages_obj, " 0 R]\n");
+ pdf_putsi(&state->pages_obj, "/Count 1\n");
+ /* PAGE 1 */
+ pdf_putsi(&state->page1_obj, "/Type /Page\n");
+ pdf_putsi(&state->page1_obj, "/Parent ");
+ pdf_putint(&state->page1_obj, state->pages_obj.id);
+ pdf_puts(&state->page1_obj, " 0 R\n");
+ pdf_putsi(&state->page1_obj, "/MediaBox [0 0 ");
+ pdf_putint(&state->page1_obj, state->page_width);
+ pdf_puts(&state->page1_obj, " ");
+ pdf_putint(&state->page1_obj, state->page_height);
+ pdf_puts(&state->page1_obj, "]\n");
+ pdf_putsi(&state->page1_obj, "/Contents ");
+ pdf_putint(&state->page1_obj, state->graph_stream.id);
+ pdf_puts(&state->page1_obj, " 0 R\n");
+ pdf_putsi(&state->page1_obj, "/Resources << /Font ");
+ pdf_putint(&state->page1_obj, state->fontsdict_obj.id);
+ pdf_puts(&state->page1_obj, " 0 R >>\n");
+}
+
+static void pdf_write_string_to_file(pdf_state *state, const char *text)
+{
+ fputs(text, state->fp);
+ state->pdf_file_pos += strlen(text);
+}
+
+static void pdf_write_buf_to_file(pdf_state *state, pdf_buffer *buf)
+{
+ char tmp[40];
+ buf->pdf_file_pos = state->pdf_file_pos;
+ if (buf->is_obj) {
+ snprintf(tmp, sizeof(tmp), "%d 0 obj\n", buf->id);
+ pdf_write_string_to_file(state, tmp);
+ }
+ if (buf->is_dict)
+ pdf_write_string_to_file(state, "<<\n");
+ if (buf->is_stream) {
+ snprintf(tmp, sizeof(tmp), "<< /Length %d >>\n", buf->current_size);
+ pdf_write_string_to_file(state, tmp);
+ pdf_write_string_to_file(state, "stream\n");
+ }
+ fwrite(buf->data, 1, buf->current_size, state->fp);
+ state->pdf_file_pos += buf->current_size;
+ if (buf->is_stream)
+ pdf_write_string_to_file(state, "endstream\n");
+ if (buf->is_dict)
+ pdf_write_string_to_file(state, ">>\n");
+ if (buf->is_obj)
+ pdf_write_string_to_file(state, "endobj\n");
+}
+
+static void pdf_write_to_file(pdf_state *state)
+{
+ pdf_buffer *buf = state->first_buffer;
+ int xref_pos;
+ state->pdf_file_pos = 0;
+ pdf_write_buf_to_file(state, &state->pdf_header);
+ while (buf) {
+ if (buf->is_obj)
+ pdf_write_buf_to_file(state, buf);
+ buf = buf->next_buffer;
+ }
+ xref_pos = state->pdf_file_pos;
+ fprintf(state->fp, "xref\n");
+ fprintf(state->fp, "%d %d\n", 0, state->last_obj_id + 1);
+ /* TOC lines must be exactly 20 bytes including \n */
+ fprintf(state->fp, "%010d %05d f\x20\n", 0, 65535);
+ for (buf = state->first_buffer; buf; buf = buf->next_buffer) {
+ if (buf->is_obj)
+ fprintf(state->fp, "%010d %05d n\x20\n", buf->pdf_file_pos, 0);
+ }
+ fprintf(state->fp, "trailer\n");
+ fprintf(state->fp, "<<\n");
+ fprintf(state->fp, "\t/Size %d\n", state->last_obj_id + 1);
+ fprintf(state->fp, "\t/Root %d 0 R\n", state->catalog_obj.id);
+ fprintf(state->fp, "\t/Info %d 0 R\n", state->info_obj.id);
+ fprintf(state->fp, ">>\n");
+ fprintf(state->fp, "startxref\n");
+ fprintf(state->fp, "%d\n", xref_pos);
+ fputs("%%EOF\n", state->fp);
+}
+
+static void pdf_free_resources(pdf_state *state)
+{
+ pdf_buffer *buf = state->first_buffer;
+ while (buf) {
+ free(buf->data);
+ buf->data = NULL;
+ buf->alloc_size = buf->current_size = 0;
+ buf = buf->next_buffer;
+ }
+ while (state->font_list) {
+ pdf_font *next = state->font_list->next;
+ free(state->font_list);
+ state->font_list = next;
+ }
+}
+
+int gfx_render_pdf (gfx_canvas_t *canvas,
+ art_u32 width, art_u32 height,
+ gfx_color_t UNUSED(background), FILE *fp){
+ struct pdf_state state;
+ memset(&state, 0, sizeof(pdf_state));
+ state.fp = fp;
+ state.canvas = canvas;
+ state.page_width = width;
+ state.page_height = height;
+ state.font_id = -1;
+ state.font_size = -1;
+ state.font_list = NULL;
+ state.linecap = -1;
+ state.linejoin = -1;
+ pdf_init_document(&state);
+ /*
+ pdf_set_color(&state, background);
+ fprintf(fp, "0 0 M 0 %d L %d %d L %d 0 L fill\n",
+ height, width, height, width);
+ */
+ if (!state.has_failed)
+ pdf_write_content(&state);
+ if (!state.has_failed)
+ pdf_setup_document(&state);
+ if (!state.has_failed)
+ pdf_write_to_file(&state);
+ pdf_free_resources(&state);
+ return state.has_failed ? -1 : 0;
+}
+
projects / rrdtool.git / blobdiff