#include <config.h>
-#include "output/cairo.h"
-
#include "libpspp/assertion.h"
#include "libpspp/cast.h"
-#include "libpspp/hash-functions.h"
#include "libpspp/message.h"
-#include "libpspp/pool.h"
-#include "libpspp/start-date.h"
#include "libpspp/str.h"
#include "libpspp/string-map.h"
-#include "libpspp/version.h"
#include "data/file-handle-def.h"
-#include "output/cairo-chart.h"
-#include "output/chart-item-provider.h"
-#include "output/charts/boxplot.h"
-#include "output/charts/np-plot.h"
-#include "output/charts/piechart.h"
-#include "output/charts/barchart.h"
-#include "output/charts/plot-hist.h"
-#include "output/charts/roc-chart.h"
-#include "output/charts/spreadlevel-plot.h"
-#include "output/charts/scree.h"
-#include "output/charts/scatterplot.h"
+#include "output/cairo-fsm.h"
+#include "output/cairo-pager.h"
#include "output/driver-provider.h"
-#include "output/group-item.h"
-#include "output/message-item.h"
#include "output/options.h"
-#include "output/page-setup-item.h"
-#include "output/render.h"
-#include "output/table-item.h"
+#include "output/output-item.h"
#include "output/table.h"
-#include "output/text-item.h"
#include <cairo/cairo-pdf.h>
#include <cairo/cairo-ps.h>
#include <cairo/cairo-svg.h>
+
#include <cairo/cairo.h>
#include <inttypes.h>
#include <math.h>
#include <pango/pango-font.h>
-#include <pango/pango-layout.h>
-#include <pango/pango.h>
-#include <pango/pangocairo.h>
#include <stdlib.h>
-#include "gl/c-ctype.h"
#include "gl/c-strcase.h"
-#include "gl/intprops.h"
-#include "gl/minmax.h"
#include "gl/xalloc.h"
#include "gettext.h"
return x / (double) XR_POINT;
}
-/* Conversion from 1/96" units ("pixels") to Cairo/Pango units. */
-static int
-px_to_xr (int x)
-{
- return x * (PANGO_SCALE * 72 / 96);
-}
-
-/* Dimensions for drawing lines in tables. */
-#define XR_LINE_WIDTH (XR_POINT / 2) /* Width of an ordinary line. */
-#define XR_LINE_SPACE XR_POINT /* Space between double lines. */
-
/* Output types. */
enum xr_output_type
{
XR_PDF,
XR_PS,
- XR_SVG
+ XR_SVG,
+ XR_PNG
};
-/* Cairo fonts. */
-enum xr_font_type
+/* Cairo output driver. */
+struct xr_driver
{
- XR_FONT_PROPORTIONAL,
- XR_FONT_EMPHASIS,
- XR_FONT_FIXED,
- XR_N_FONTS
- };
+ struct output_driver driver;
-/* A font for use with Cairo. */
-struct xr_font
- {
- PangoFontDescription *desc;
- PangoLayout *layout;
- };
+ enum xr_output_type output_type;
+ struct xr_fsm_style *fsm_style;
+ struct xr_page_style *page_style;
+ struct xr_pager *pager;
+ bool trim;
-/* An output item whose rendering is in progress. */
-struct xr_render_fsm
- {
- /* Renders as much of itself as it can on the current page. Returns true
- if rendering is complete, false if the output item needs another
- page. */
- bool (*render) (struct xr_render_fsm *, struct xr_driver *);
+ /* This is the surface where we're currently drawing. It is always
+ nonnull.
- /* Destroys the output item. */
- void (*destroy) (struct xr_render_fsm *);
- };
+ If 'trim' is true, this is a special Cairo "recording surface" that we
+ are using to save output temporarily just to find out the bounding box,
+ then later replay it into the destination surface.
-/* Cairo output driver. */
-struct xr_driver
- {
- struct output_driver driver;
+ If 'trim' is false:
+
+ - For output to a PDF or PostScript file, it is the same pointer as
+ 'dest_surface'.
+
+ - For output to a PNG file, it is an image surface.
+
+ - For output to an SVG file, it is a recording surface.
+ */
+ cairo_surface_t *drawing_surface;
+
+ /* - For output to a PDF or PostScript file, this is the surface for the
+ PDF or PostScript file where the output is ultimately going.
+
+ - For output to a PNG file, this is NULL, because Cairo has very
+ limited support for PNG. Cairo can't open a PNG file for writing as
+ a surface, it can only save an existing surface to a PNG file.
+
+ - For output to a SVG file, this is NULL, because Cairo does not
+ permit resizing the SVG page size after creating the file, whereas
+ this driver needs to do that sometimes. Also, SVG is not multi-page
+ (according to https://wiki.inkscape.org/wiki/index.php/Multipage).
+ */
+ cairo_surface_t *dest_surface;
- /* User parameters. */
- struct xr_font fonts[XR_N_FONTS];
-
- int width; /* Page width minus margins. */
- int length; /* Page length minus margins and header. */
-
- int left_margin; /* Left margin in inch/(72 * XR_POINT). */
- int right_margin; /* Right margin in inch/(72 * XR_POINT). */
- int top_margin; /* Top margin in inch/(72 * XR_POINT). */
- int bottom_margin; /* Bottom margin in inch/(72 * XR_POINT). */
-
- int line_space; /* Space between lines. */
- int line_width; /* Width of lines. */
-
- int min_break[TABLE_N_AXES]; /* Min cell size to break across pages. */
- int object_spacing; /* Space between output objects. */
-
- struct cell_color bg; /* Background color */
- struct cell_color fg; /* Foreground color */
- bool transparent; /* true -> do not render background */
- bool systemcolors; /* true -> do not change colors */
-
- int initial_page_number;
-
- struct page_heading headings[2]; /* Top and bottom headings. */
- int headings_height[2];
-
- /* Internal state. */
- struct render_params *params;
- double font_scale;
- int char_width, char_height;
- char *command_name;
- char *title;
- char *subtitle;
- cairo_t *cairo;
- cairo_surface_t *surface;
- int page_number; /* Current page number. */
- int x, y;
- struct xr_render_fsm *fsm;
- struct string_map heading_vars;
+ /* Used only in file names, for PNG and SVG output where we can only write
+ one page per file. */
+ int page_number;
};
static const struct output_driver_class cairo_driver_class;
-static void xr_driver_destroy_fsm (struct xr_driver *);
-static void xr_driver_run_fsm (struct xr_driver *);
-
-static void xr_draw_line (void *, int bb[TABLE_N_AXES][2],
- enum render_line_style styles[TABLE_N_AXES][2],
- struct cell_color colors[TABLE_N_AXES][2]);
-static void xr_measure_cell_width (void *, const struct table_cell *,
- int *min, int *max);
-static int xr_measure_cell_height (void *, const struct table_cell *,
- int width);
-static void xr_draw_cell (void *, const struct table_cell *, int color_idx,
- int bb[TABLE_N_AXES][2], int valign_offset,
- int spill[TABLE_N_AXES][2],
- int clip[TABLE_N_AXES][2]);
-static int xr_adjust_break (void *, const struct table_cell *,
- int width, int height);
-
-static struct xr_render_fsm *xr_render_output_item (
- struct xr_driver *, const struct output_item *);
\f
/* Output driver basics. */
return driver_option_get (d, options, key, default_value);
}
-static int
-lookup_color_name (const char *s)
-{
- struct color
- {
- struct hmap_node hmap_node;
- const char *name;
- int code;
- };
-
- static struct color colors[] =
- {
- { .name = "aliceblue", .code = 0xf0f8ff },
- { .name = "antiquewhite", .code = 0xfaebd7 },
- { .name = "aqua", .code = 0x00ffff },
- { .name = "aquamarine", .code = 0x7fffd4 },
- { .name = "azure", .code = 0xf0ffff },
- { .name = "beige", .code = 0xf5f5dc },
- { .name = "bisque", .code = 0xffe4c4 },
- { .name = "black", .code = 0x000000 },
- { .name = "blanchedalmond", .code = 0xffebcd },
- { .name = "blue", .code = 0x0000ff },
- { .name = "blueviolet", .code = 0x8a2be2 },
- { .name = "brown", .code = 0xa52a2a },
- { .name = "burlywood", .code = 0xdeb887 },
- { .name = "cadetblue", .code = 0x5f9ea0 },
- { .name = "chartreuse", .code = 0x7fff00 },
- { .name = "chocolate", .code = 0xd2691e },
- { .name = "coral", .code = 0xff7f50 },
- { .name = "cornflowerblue", .code = 0x6495ed },
- { .name = "cornsilk", .code = 0xfff8dc },
- { .name = "crimson", .code = 0xdc143c },
- { .name = "cyan", .code = 0x00ffff },
- { .name = "darkblue", .code = 0x00008b },
- { .name = "darkcyan", .code = 0x008b8b },
- { .name = "darkgoldenrod", .code = 0xb8860b },
- { .name = "darkgray", .code = 0xa9a9a9 },
- { .name = "darkgreen", .code = 0x006400 },
- { .name = "darkgrey", .code = 0xa9a9a9 },
- { .name = "darkkhaki", .code = 0xbdb76b },
- { .name = "darkmagenta", .code = 0x8b008b },
- { .name = "darkolivegreen", .code = 0x556b2f },
- { .name = "darkorange", .code = 0xff8c00 },
- { .name = "darkorchid", .code = 0x9932cc },
- { .name = "darkred", .code = 0x8b0000 },
- { .name = "darksalmon", .code = 0xe9967a },
- { .name = "darkseagreen", .code = 0x8fbc8f },
- { .name = "darkslateblue", .code = 0x483d8b },
- { .name = "darkslategray", .code = 0x2f4f4f },
- { .name = "darkslategrey", .code = 0x2f4f4f },
- { .name = "darkturquoise", .code = 0x00ced1 },
- { .name = "darkviolet", .code = 0x9400d3 },
- { .name = "deeppink", .code = 0xff1493 },
- { .name = "deepskyblue", .code = 0x00bfff },
- { .name = "dimgray", .code = 0x696969 },
- { .name = "dimgrey", .code = 0x696969 },
- { .name = "dodgerblue", .code = 0x1e90ff },
- { .name = "firebrick", .code = 0xb22222 },
- { .name = "floralwhite", .code = 0xfffaf0 },
- { .name = "forestgreen", .code = 0x228b22 },
- { .name = "fuchsia", .code = 0xff00ff },
- { .name = "gainsboro", .code = 0xdcdcdc },
- { .name = "ghostwhite", .code = 0xf8f8ff },
- { .name = "gold", .code = 0xffd700 },
- { .name = "goldenrod", .code = 0xdaa520 },
- { .name = "gray", .code = 0x808080 },
- { .name = "green", .code = 0x008000 },
- { .name = "greenyellow", .code = 0xadff2f },
- { .name = "grey", .code = 0x808080 },
- { .name = "honeydew", .code = 0xf0fff0 },
- { .name = "hotpink", .code = 0xff69b4 },
- { .name = "indianred", .code = 0xcd5c5c },
- { .name = "indigo", .code = 0x4b0082 },
- { .name = "ivory", .code = 0xfffff0 },
- { .name = "khaki", .code = 0xf0e68c },
- { .name = "lavender", .code = 0xe6e6fa },
- { .name = "lavenderblush", .code = 0xfff0f5 },
- { .name = "lawngreen", .code = 0x7cfc00 },
- { .name = "lemonchiffon", .code = 0xfffacd },
- { .name = "lightblue", .code = 0xadd8e6 },
- { .name = "lightcoral", .code = 0xf08080 },
- { .name = "lightcyan", .code = 0xe0ffff },
- { .name = "lightgoldenrodyellow", .code = 0xfafad2 },
- { .name = "lightgray", .code = 0xd3d3d3 },
- { .name = "lightgreen", .code = 0x90ee90 },
- { .name = "lightgrey", .code = 0xd3d3d3 },
- { .name = "lightpink", .code = 0xffb6c1 },
- { .name = "lightsalmon", .code = 0xffa07a },
- { .name = "lightseagreen", .code = 0x20b2aa },
- { .name = "lightskyblue", .code = 0x87cefa },
- { .name = "lightslategray", .code = 0x778899 },
- { .name = "lightslategrey", .code = 0x778899 },
- { .name = "lightsteelblue", .code = 0xb0c4de },
- { .name = "lightyellow", .code = 0xffffe0 },
- { .name = "lime", .code = 0x00ff00 },
- { .name = "limegreen", .code = 0x32cd32 },
- { .name = "linen", .code = 0xfaf0e6 },
- { .name = "magenta", .code = 0xff00ff },
- { .name = "maroon", .code = 0x800000 },
- { .name = "mediumaquamarine", .code = 0x66cdaa },
- { .name = "mediumblue", .code = 0x0000cd },
- { .name = "mediumorchid", .code = 0xba55d3 },
- { .name = "mediumpurple", .code = 0x9370db },
- { .name = "mediumseagreen", .code = 0x3cb371 },
- { .name = "mediumslateblue", .code = 0x7b68ee },
- { .name = "mediumspringgreen", .code = 0x00fa9a },
- { .name = "mediumturquoise", .code = 0x48d1cc },
- { .name = "mediumvioletred", .code = 0xc71585 },
- { .name = "midnightblue", .code = 0x191970 },
- { .name = "mintcream", .code = 0xf5fffa },
- { .name = "mistyrose", .code = 0xffe4e1 },
- { .name = "moccasin", .code = 0xffe4b5 },
- { .name = "navajowhite", .code = 0xffdead },
- { .name = "navy", .code = 0x000080 },
- { .name = "oldlace", .code = 0xfdf5e6 },
- { .name = "olive", .code = 0x808000 },
- { .name = "olivedrab", .code = 0x6b8e23 },
- { .name = "orange", .code = 0xffa500 },
- { .name = "orangered", .code = 0xff4500 },
- { .name = "orchid", .code = 0xda70d6 },
- { .name = "palegoldenrod", .code = 0xeee8aa },
- { .name = "palegreen", .code = 0x98fb98 },
- { .name = "paleturquoise", .code = 0xafeeee },
- { .name = "palevioletred", .code = 0xdb7093 },
- { .name = "papayawhip", .code = 0xffefd5 },
- { .name = "peachpuff", .code = 0xffdab9 },
- { .name = "peru", .code = 0xcd853f },
- { .name = "pink", .code = 0xffc0cb },
- { .name = "plum", .code = 0xdda0dd },
- { .name = "powderblue", .code = 0xb0e0e6 },
- { .name = "purple", .code = 0x800080 },
- { .name = "red", .code = 0xff0000 },
- { .name = "rosybrown", .code = 0xbc8f8f },
- { .name = "royalblue", .code = 0x4169e1 },
- { .name = "saddlebrown", .code = 0x8b4513 },
- { .name = "salmon", .code = 0xfa8072 },
- { .name = "sandybrown", .code = 0xf4a460 },
- { .name = "seagreen", .code = 0x2e8b57 },
- { .name = "seashell", .code = 0xfff5ee },
- { .name = "sienna", .code = 0xa0522d },
- { .name = "silver", .code = 0xc0c0c0 },
- { .name = "skyblue", .code = 0x87ceeb },
- { .name = "slateblue", .code = 0x6a5acd },
- { .name = "slategray", .code = 0x708090 },
- { .name = "slategrey", .code = 0x708090 },
- { .name = "snow", .code = 0xfffafa },
- { .name = "springgreen", .code = 0x00ff7f },
- { .name = "steelblue", .code = 0x4682b4 },
- { .name = "tan", .code = 0xd2b48c },
- { .name = "teal", .code = 0x008080 },
- { .name = "thistle", .code = 0xd8bfd8 },
- { .name = "tomato", .code = 0xff6347 },
- { .name = "turquoise", .code = 0x40e0d0 },
- { .name = "violet", .code = 0xee82ee },
- { .name = "wheat", .code = 0xf5deb3 },
- { .name = "white", .code = 0xffffff },
- { .name = "whitesmoke", .code = 0xf5f5f5 },
- { .name = "yellow", .code = 0xffff00 },
- { .name = "yellowgreen", .code = 0x9acd32 },
- };
-
- static struct hmap color_table = HMAP_INITIALIZER (color_table);
-
- if (hmap_is_empty (&color_table))
- for (size_t i = 0; i < sizeof colors / sizeof *colors; i++)
- hmap_insert (&color_table, &colors[i].hmap_node,
- hash_string (colors[i].name, 0));
-
- const struct color *color;
- HMAP_FOR_EACH_WITH_HASH (color, struct color, hmap_node,
- hash_string (s, 0), &color_table)
- if (!strcmp (color->name, s))
- return color->code;
- return -1;
-}
-
-static bool
-parse_color__ (const char *s, struct cell_color *color)
-{
- /* #rrrrggggbbbb */
- uint16_t r16, g16, b16;
- int len;
- if (sscanf (s, "#%4"SCNx16"%4"SCNx16"%4"SCNx16"%n",
- &r16, &g16, &b16, &len) == 3
- && len == 13
- && !s[len])
- {
- color->r = r16 >> 8;
- color->g = g16 >> 8;
- color->b = b16 >> 8;
- return true;
- }
-
- /* #rrggbb */
- uint8_t r, g, b;
- if (sscanf (s, "#%2"SCNx8"%2"SCNx8"%2"SCNx8"%n", &r, &g, &b, &len) == 3
- && len == 7
- && !s[len])
- {
- color->r = r;
- color->g = g;
- color->b = b;
- return true;
- }
-
- /* rrggbb */
- if (sscanf (s, "%2"SCNx8"%2"SCNx8"%2"SCNx8"%n", &r, &g, &b, &len) == 3
- && len == 6
- && !s[len])
- {
- color->r = r;
- color->g = g;
- color->b = b;
- return true;
- }
-
- /* rgb(r,g,b) */
- if (sscanf (s, "rgb (%"SCNi8" , %"SCNi8" , %"SCNi8") %n",
- &r, &g, &b, &len) == 3
- && !s[len])
- {
- color->r = r;
- color->g = g;
- color->b = b;
- return true;
- }
-
- /* rgba(r,g,b,a), ignoring a. */
- if (sscanf (s, "rgba (%"SCNi8" , %"SCNi8" , %"SCNi8", %*f) %n",
- &r, &g, &b, &len) == 3
- && !s[len])
- {
- color->r = r;
- color->g = g;
- color->b = b;
- return true;
- }
-
- int code = lookup_color_name (s);
- if (code >= 0)
- {
- color->r = code >> 16;
- color->g = code >> 8;
- color->b = code;
- return true;
- }
-
- return false;
-}
-
-/* Parse color information specified by KEY into {RED,GREEN,BLUE}.
- Currently, the input string must be of the form "#RRRRGGGGBBBB"
- Future implementations might allow things like "yellow" and
- "sky-blue-ultra-brown"
-*/
-void
-parse_color (struct output_driver *d, struct string_map *options,
- const char *key, const char *default_value,
- struct cell_color *color)
-{
- char *string = parse_string (opt (d, options, key, default_value));
- if (!parse_color__ (string, color) && !parse_color__ (default_value, color))
- *color = (struct cell_color) CELL_COLOR_BLACK;
- free (string);
-}
-
static PangoFontDescription *
parse_font (const char *font, int default_size, bool bold, bool italic)
{
return desc;
}
-static void
-apply_options (struct xr_driver *xr, struct string_map *o)
+static struct xr_driver *
+xr_allocate (const char *name, int device_type,
+ enum xr_output_type output_type, struct string_map *o)
{
+ struct xr_driver *xr = XZALLOC (struct xr_driver);
struct output_driver *d = &xr->driver;
- /* In inch/72000 units used by parse_paper_size() and parse_dimension(). */
- int left_margin, right_margin;
- int top_margin, bottom_margin;
- int paper_width, paper_length;
- int font_size;
- int min_break[TABLE_N_AXES];
+ output_driver_init (d, &cairo_driver_class, name, device_type);
+ xr->output_type = output_type;
/* Scale factor from inch/72000 to inch/(72 * XR_POINT). */
const double scale = XR_POINT / 1000.;
- int i;
-
- for (i = 0; i < XR_N_FONTS; i++)
- {
- struct xr_font *font = &xr->fonts[i];
-
- if (font->desc != NULL)
- pango_font_description_free (font->desc);
- }
-
- font_size = parse_int (opt (d, o, "font-size", "10000"), 1000, 1000000);
- xr->fonts[XR_FONT_FIXED].desc = parse_font_option
- (d, o, "fixed-font", "monospace", font_size, false, false);
- xr->fonts[XR_FONT_PROPORTIONAL].desc = parse_font_option (
- d, o, "prop-font", "sans serif", font_size, false, false);
- xr->fonts[XR_FONT_EMPHASIS].desc = parse_font_option (
- d, o, "emph-font", "sans serif", font_size, false, true);
-
- parse_color (d, o, "background-color", "#FFFFFFFFFFFF", &xr->bg);
- parse_color (d, o, "foreground-color", "#000000000000", &xr->fg);
+ int paper[TABLE_N_AXES];
+ parse_paper_size (opt (d, o, "paper-size", ""), &paper[H], &paper[V]);
+ for (int a = 0; a < TABLE_N_AXES; a++)
+ paper[a] *= scale;
- xr->transparent = parse_boolean (opt (d, o, "transparent", "false"));
- xr->systemcolors = parse_boolean (opt (d, o, "systemcolors", "false"));
+ int margins[TABLE_N_AXES][2];
+ margins[H][0] = parse_dimension (opt (d, o, "left-margin", ".5in")) * scale;
+ margins[H][1] = parse_dimension (opt (d, o, "right-margin", ".5in")) * scale;
+ margins[V][0] = parse_dimension (opt (d, o, "top-margin", ".5in")) * scale;
+ margins[V][1] = parse_dimension (opt (d, o, "bottom-margin", ".5in")) * scale;
- /* Get dimensions. */
- parse_paper_size (opt (d, o, "paper-size", ""), &paper_width, &paper_length);
- left_margin = parse_dimension (opt (d, o, "left-margin", ".5in"));
- right_margin = parse_dimension (opt (d, o, "right-margin", ".5in"));
- top_margin = parse_dimension (opt (d, o, "top-margin", ".5in"));
- bottom_margin = parse_dimension (opt (d, o, "bottom-margin", ".5in"));
+ int size[TABLE_N_AXES];
+ for (int a = 0; a < TABLE_N_AXES; a++)
+ size[a] = paper[a] - margins[a][0] - margins[a][1];
+ int min_break[TABLE_N_AXES];
min_break[H] = parse_dimension (opt (d, o, "min-hbreak", NULL)) * scale;
min_break[V] = parse_dimension (opt (d, o, "min-vbreak", NULL)) * scale;
+ for (int a = 0; a < TABLE_N_AXES; a++)
+ if (min_break[a] <= 0)
+ min_break[a] = size[a] / 2;
- int object_spacing = (parse_dimension (opt (d, o, "object-spacing", NULL))
- * scale);
-
- /* Convert to inch/(XR_POINT * 72). */
- xr->left_margin = left_margin * scale;
- xr->right_margin = right_margin * scale;
- xr->top_margin = top_margin * scale;
- xr->bottom_margin = bottom_margin * scale;
- xr->width = (paper_width - left_margin - right_margin) * scale;
- xr->length = (paper_length - top_margin - bottom_margin) * scale;
- xr->min_break[H] = min_break[H] >= 0 ? min_break[H] : xr->width / 2;
- xr->min_break[V] = min_break[V] >= 0 ? min_break[V] : xr->length / 2;
- xr->object_spacing = object_spacing >= 0 ? object_spacing : XR_POINT * 12;
-
- /* There are no headings so headings_height can stay 0. */
-}
-
-static struct xr_driver *
-xr_allocate (const char *name, int device_type, struct string_map *o,
- double font_scale)
-{
- struct xr_driver *xr = xzalloc (sizeof *xr);
- struct output_driver *d = &xr->driver;
-
- output_driver_init (d, &cairo_driver_class, name, device_type);
-
- string_map_init (&xr->heading_vars);
-
- /* This is a nasty kluge for an issue that does not make sense. On any
- surface other than a screen (e.g. for output to PDF or PS or SVG), the
- fonts are way too big by default. A "9-point" font seems to appear about
- 16 points tall. We use a scale factor for these surfaces to help, but the
- underlying issue is a mystery. */
- xr->font_scale = font_scale;
-
- apply_options (xr, o);
-
- return xr;
-}
-
-static int
-pango_to_xr (int pango)
-{
- return (XR_POINT != PANGO_SCALE
- ? ceil (pango * (1. * XR_POINT / PANGO_SCALE))
- : pango);
-}
-
-static int
-xr_to_pango (int xr)
-{
- return (XR_POINT != PANGO_SCALE
- ? ceil (xr * (1. / XR_POINT * PANGO_SCALE))
- : xr);
-}
-
-static void
-xr_measure_fonts (cairo_t *cairo, const struct xr_font fonts[XR_N_FONTS],
- int *char_width, int *char_height)
-{
- *char_width = 0;
- *char_height = 0;
- for (int i = 0; i < XR_N_FONTS; i++)
- {
- PangoLayout *layout = pango_cairo_create_layout (cairo);
- pango_layout_set_font_description (layout, fonts[i].desc);
-
- pango_layout_set_text (layout, "0", 1);
-
- int cw, ch;
- pango_layout_get_size (layout, &cw, &ch);
- *char_width = MAX (*char_width, pango_to_xr (cw));
- *char_height = MAX (*char_height, pango_to_xr (ch));
-
- g_object_unref (G_OBJECT (layout));
- }
-}
-
-static int
-get_layout_height (PangoLayout *layout)
-{
- int w, h;
- pango_layout_get_size (layout, &w, &h);
- return h;
-}
-
-static int
-xr_render_page_heading (cairo_t *cairo, const PangoFontDescription *font,
- const struct page_heading *ph, int page_number,
- int width, bool draw, int base_y)
-{
- PangoLayout *layout = pango_cairo_create_layout (cairo);
- pango_layout_set_font_description (layout, font);
-
- int y = 0;
- for (size_t i = 0; i < ph->n; i++)
- {
- const struct page_paragraph *pp = &ph->paragraphs[i];
-
- char *markup = output_driver_substitute_heading_vars (pp->markup,
- page_number);
- pango_layout_set_markup (layout, markup, -1);
- free (markup);
-
- pango_layout_set_alignment (
- layout,
- (pp->halign == TABLE_HALIGN_LEFT ? PANGO_ALIGN_LEFT
- : pp->halign == TABLE_HALIGN_CENTER ? PANGO_ALIGN_CENTER
- : pp->halign == TABLE_HALIGN_MIXED ? PANGO_ALIGN_LEFT
- : PANGO_ALIGN_RIGHT));
- pango_layout_set_width (layout, xr_to_pango (width));
- if (draw)
- {
- cairo_save (cairo);
- cairo_translate (cairo, 0, xr_to_pt (y + base_y));
- pango_cairo_show_layout (cairo, layout);
- cairo_restore (cairo);
- }
-
- y += pango_to_xr (get_layout_height (layout));
- }
-
- g_object_unref (G_OBJECT (layout));
+ int font_size = parse_int (opt (d, o, "font-size", "10000"), 1000, 1000000);
+ PangoFontDescription *font = parse_font_option (
+ d, o, "prop-font", "Sans Serif", font_size, false, false);
- return y;
-}
-
-static int
-xr_measure_headings (cairo_surface_t *surface,
- const PangoFontDescription *font,
- const struct page_heading headings[2],
- int width, int object_spacing, int height[2])
-{
- cairo_t *cairo = cairo_create (surface);
- int total = 0;
- for (int i = 0; i < 2; i++)
- {
- int h = xr_render_page_heading (cairo, font, &headings[i], -1,
- width, false, 0);
+ struct cell_color fg = parse_color (opt (d, o, "foreground-color", "black"));
- /* If the top heading is nonempty, add some space below it. */
- if (h && i == 0)
- h += object_spacing;
+ bool systemcolors = parse_boolean (opt (d, o, "systemcolors", "false"));
- if (height)
- height[i] = h;
- total += h;
- }
- cairo_destroy (cairo);
- return total;
-}
+ int object_spacing
+ = parse_dimension (opt (d, o, "object-spacing", NULL)) * scale;
+ if (object_spacing <= 0)
+ object_spacing = XR_POINT * 12;
-static bool
-xr_check_fonts (cairo_surface_t *surface,
- const struct xr_font fonts[XR_N_FONTS],
- int usable_width, int usable_length)
-{
- cairo_t *cairo = cairo_create (surface);
- int char_width, char_height;
- xr_measure_fonts (cairo, fonts, &char_width, &char_height);
- cairo_destroy (cairo);
-
- bool ok = true;
- enum { MIN_WIDTH = 3, MIN_LENGTH = 3 };
- if (usable_width / char_width < MIN_WIDTH)
- {
- msg (ME, _("The defined page is not wide enough to hold at least %d "
- "characters in the default font. In fact, there's only "
- "room for %d characters."),
- MIN_WIDTH, usable_width / char_width);
- ok = false;
- }
- if (usable_length / char_height < MIN_LENGTH)
- {
- msg (ME, _("The defined page is not long enough to hold at least %d "
- "lines in the default font. In fact, there's only "
- "room for %d lines."),
- MIN_LENGTH, usable_length / char_height);
- ok = false;
- }
- return ok;
-}
+ const char *default_resolution = (output_type == XR_PNG ? "96" : "72");
+ int font_resolution = parse_int (opt (d, o, "font-resolution",
+ default_resolution), 10, 1000);
-static void
-xr_set_cairo (struct xr_driver *xr, cairo_t *cairo)
-{
- xr->cairo = cairo;
+ xr->trim = parse_boolean (opt (d, o, "trim", "false"));
- cairo_set_line_width (xr->cairo, xr_to_pt (XR_LINE_WIDTH));
+ /* Cairo 1.16.0 has a bug that causes crashes if outlines are enabled at the
+ same time as trimming:
+ https://lists.cairographics.org/archives/cairo/2020-December/029151.html
+ For now, just disable the outline if trimming is enabled. */
+ bool include_outline
+ = (output_type == XR_PDF
+ && parse_boolean (opt (d, o, "outline", xr->trim ? "false" : "true")));
- xr_measure_fonts (xr->cairo, xr->fonts, &xr->char_width, &xr->char_height);
+ xr->page_style = xmalloc (sizeof *xr->page_style);
+ *xr->page_style = (struct xr_page_style) {
+ .ref_cnt = 1,
- for (int i = 0; i < XR_N_FONTS; i++)
- {
- struct xr_font *font = &xr->fonts[i];
- font->layout = pango_cairo_create_layout (cairo);
- pango_layout_set_font_description (font->layout, font->desc);
- }
+ .margins = {
+ [H] = { margins[H][0], margins[H][1], },
+ [V] = { margins[V][0], margins[V][1], },
+ },
- if (xr->params == NULL)
- {
- xr->params = xmalloc (sizeof *xr->params);
- xr->params->draw_line = xr_draw_line;
- xr->params->measure_cell_width = xr_measure_cell_width;
- xr->params->measure_cell_height = xr_measure_cell_height;
- xr->params->adjust_break = xr_adjust_break;
- xr->params->draw_cell = xr_draw_cell;
- xr->params->aux = xr;
- xr->params->size[H] = xr->width;
- xr->params->size[V] = xr->length;
- xr->params->font_size[H] = xr->char_width;
- xr->params->font_size[V] = xr->char_height;
-
- int lw = XR_LINE_WIDTH;
- int ls = XR_LINE_SPACE;
- for (int i = 0; i < TABLE_N_AXES; i++)
- {
- xr->params->line_widths[i][RENDER_LINE_NONE] = 0;
- xr->params->line_widths[i][RENDER_LINE_SINGLE] = lw;
- xr->params->line_widths[i][RENDER_LINE_DASHED] = lw;
- xr->params->line_widths[i][RENDER_LINE_THICK] = lw * 2;
- xr->params->line_widths[i][RENDER_LINE_THIN] = lw / 2;
- xr->params->line_widths[i][RENDER_LINE_DOUBLE] = 2 * lw + ls;
- }
+ .initial_page_number = 1,
+ .include_outline = include_outline,
+ };
- for (int i = 0; i < TABLE_N_AXES; i++)
- xr->params->min_break[i] = xr->min_break[i];
- xr->params->supports_margins = true;
- xr->params->rtl = render_direction_rtl ();
- }
+ xr->fsm_style = xmalloc (sizeof *xr->fsm_style);
+ *xr->fsm_style = (struct xr_fsm_style) {
+ .ref_cnt = 1,
+ .size = { [H] = size[H], [V] = size[V] },
+ .min_break = { [H] = min_break[H], [V] = min_break[V] },
+ .font = font,
+ .fg = fg,
+ .use_system_colors = systemcolors,
+ .object_spacing = object_spacing,
+ .font_resolution = font_resolution,
+ };
- if (!xr->systemcolors)
- cairo_set_source_rgb (xr->cairo,
- xr->fg.r / 255.0, xr->fg.g / 255.0, xr->fg.b / 255.0);
+ return xr;
}
static struct output_driver *
xr_create (struct file_handle *fh, enum settings_output_devices device_type,
- struct string_map *o, enum xr_output_type file_type)
+ struct string_map *o, enum xr_output_type output_type)
{
const char *file_name = fh_get_file_name (fh);
- struct xr_driver *xr = xr_allocate (file_name, device_type, o, 72.0 / 128.0);
- double width_pt = xr_to_pt (xr->width + xr->left_margin + xr->right_margin);
- double length_pt = xr_to_pt (xr->length + xr->top_margin + xr->bottom_margin);
- if (file_type == XR_PDF)
- xr->surface = cairo_pdf_surface_create (file_name, width_pt, length_pt);
- else if (file_type == XR_PS)
- xr->surface = cairo_ps_surface_create (file_name, width_pt, length_pt);
- else if (file_type == XR_SVG)
- xr->surface = cairo_svg_surface_create (file_name, width_pt, length_pt);
- else
- NOT_REACHED ();
-
- cairo_status_t status = cairo_surface_status (xr->surface);
- if (status != CAIRO_STATUS_SUCCESS)
- {
- msg (ME, _("error opening output file `%s': %s"),
- file_name, cairo_status_to_string (status));
- goto error;
+ struct xr_driver *xr = xr_allocate (file_name, device_type, output_type, o);
+
+ double paper[TABLE_N_AXES];
+ for (int a = 0; a < TABLE_N_AXES; a++)
+ paper[a] = xr_to_pt (xr_page_style_paper_size (xr->page_style,
+ xr->fsm_style, a));
+
+ xr->dest_surface
+ = (output_type == XR_PDF
+ ? cairo_pdf_surface_create (file_name, paper[H], paper[V])
+ : output_type == XR_PS
+ ? cairo_ps_surface_create (file_name, paper[H], paper[V])
+ : NULL);
+ if (xr->dest_surface)
+ {
+ cairo_status_t status = cairo_surface_status (xr->dest_surface);
+ if (status != CAIRO_STATUS_SUCCESS)
+ {
+ msg (ME, _("error opening output file `%s': %s"),
+ file_name, cairo_status_to_string (status));
+ goto error;
+ }
}
- if (!xr_check_fonts (xr->surface, xr->fonts, xr->width, xr->length))
- goto error;
+ xr->drawing_surface
+ = (xr->trim || output_type == XR_SVG
+ ? cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA,
+ &(cairo_rectangle_t) {
+ .width = paper[H],
+ .height = paper[V] })
+ : output_type == XR_PNG
+ ? cairo_image_surface_create (CAIRO_FORMAT_ARGB32, paper[H], paper[V])
+ : xr->dest_surface);
fh_unref (fh);
return &xr->driver;
return xr_create (fh, device_type, o, XR_SVG);
}
-static void
-xr_destroy (struct output_driver *driver)
+static struct output_driver *
+xr_png_create (struct file_handle *fh, enum settings_output_devices device_type,
+ struct string_map *o)
{
- struct xr_driver *xr = xr_driver_cast (driver);
- size_t i;
-
- xr_driver_destroy_fsm (xr);
+ return xr_create (fh, device_type, o, XR_PNG);
+}
- if (xr->cairo != NULL)
+static void
+xr_set_surface_size (cairo_surface_t *surface, enum xr_output_type output_type,
+ double width, double height)
+{
+ switch (output_type)
{
- cairo_surface_finish (xr->surface);
- cairo_status_t status = cairo_status (xr->cairo);
- if (status != CAIRO_STATUS_SUCCESS)
- fprintf (stderr, _("error drawing output for %s driver: %s"),
- output_driver_get_name (driver),
- cairo_status_to_string (status));
- cairo_surface_destroy (xr->surface);
-
- cairo_destroy (xr->cairo);
- }
+ case XR_PDF:
+ cairo_pdf_surface_set_size (surface, width, height);
+ break;
- for (i = 0; i < XR_N_FONTS; i++)
- {
- struct xr_font *font = &xr->fonts[i];
+ case XR_PS:
+ cairo_ps_surface_set_size (surface, width, height);
+ break;
- if (font->desc != NULL)
- pango_font_description_free (font->desc);
- if (font->layout != NULL)
- g_object_unref (font->layout);
+ case XR_SVG:
+ case XR_PNG:
+ NOT_REACHED ();
}
+}
- free (xr->params);
- free (xr);
+static void
+xr_copy_surface (cairo_surface_t *dst, cairo_surface_t *src,
+ double x, double y)
+{
+ cairo_t *cr = cairo_create (dst);
+ cairo_set_source_surface (cr, src, x, y);
+ cairo_paint (cr);
+ cairo_destroy (cr);
}
static void
-xr_flush (struct output_driver *driver)
+clear_rectangle (cairo_surface_t *surface,
+ double x0, double y0, double x1, double y1)
{
- struct xr_driver *xr = xr_driver_cast (driver);
+ cairo_t *cr = cairo_create (surface);
+ cairo_set_source_rgb (cr, 1, 1, 1);
+ cairo_new_path (cr);
+ cairo_rectangle (cr, x0, y0, x1 - x0, y1 - y0);
+ cairo_fill (cr);
+ cairo_destroy (cr);
+}
- cairo_surface_flush (cairo_get_target (xr->cairo));
+static void
+xr_report_error (cairo_status_t status, const char *file_name)
+{
+ if (status != CAIRO_STATUS_SUCCESS)
+ fprintf (stderr, "%s: %s\n", file_name, cairo_status_to_string (status));
}
static void
-xr_update_page_setup (struct output_driver *driver,
- const struct page_setup *ps)
+xr_finish_page (struct xr_driver *xr)
{
- struct xr_driver *xr = xr_driver_cast (driver);
+ xr_pager_finish_page (xr->pager);
- xr->initial_page_number = ps->initial_page_number;
- xr->object_spacing = ps->object_spacing * 72 * XR_POINT;
+ /* For 'trim' true:
- if (xr->cairo)
- return;
+ - If the destination is PDF or PostScript, set the dest surface size, copy
+ ink extent, show_page.
- int usable[TABLE_N_AXES];
- for (int i = 0; i < 2; i++)
- usable[i] = (ps->paper[i]
- - (ps->margins[i][0] + ps->margins[i][1])) * 72 * XR_POINT;
+ - If the destination is PNG, create image surface, copy ink extent,
+ cairo_surface_write_to_png(), destroy image surface.
- int headings_height[2];
- usable[V] -= xr_measure_headings (
- xr->surface, xr->fonts[XR_FONT_PROPORTIONAL].desc, ps->headings,
- usable[H], xr->object_spacing, headings_height);
+ - If the destination is SVG, create svg surface, copy ink extent, close.
- enum table_axis h = ps->orientation == PAGE_LANDSCAPE;
- enum table_axis v = !h;
- if (!xr_check_fonts (xr->surface, xr->fonts, usable[h], usable[v]))
- return;
+ then destroy drawing_surface and make a new one.
- for (int i = 0; i < 2; i++)
- {
- page_heading_uninit (&xr->headings[i]);
- page_heading_copy (&xr->headings[i], &ps->headings[i]);
- xr->headings_height[i] = headings_height[i];
- }
- xr->width = usable[h];
- xr->length = usable[v];
- xr->left_margin = ps->margins[h][0] * 72 * XR_POINT;
- xr->right_margin = ps->margins[h][1] * 72 * XR_POINT;
- xr->top_margin = ps->margins[v][0] * 72 * XR_POINT;
- xr->bottom_margin = ps->margins[v][1] * 72 * XR_POINT;
- cairo_pdf_surface_set_size (xr->surface,
- ps->paper[h] * 72.0, ps->paper[v] * 72.0);
-}
+ For 'trim' false:
-static void
-xr_submit (struct output_driver *driver, const struct output_item *output_item)
-{
- struct xr_driver *xr = xr_driver_cast (driver);
+ - If the destination is PDF or PostScript, show_page.
- if (is_page_setup_item (output_item))
- {
- xr_update_page_setup (driver,
- to_page_setup_item (output_item)->page_setup);
- return;
- }
+ - If the destination is PNG, cairo_surface_write_to_png(), destroy image
+ surface, create new image surface.
- if (!xr->cairo)
- {
- xr->page_number = xr->initial_page_number - 1;
- xr_set_cairo (xr, cairo_create (xr->surface));
- cairo_save (xr->cairo);
- xr_driver_next_page (xr, xr->cairo);
- }
+ - If the destination is SVG, create svg surface, copy whole thing, close.
- xr_driver_output_item (xr, output_item);
- while (xr_driver_need_new_page (xr))
- {
- cairo_restore (xr->cairo);
- cairo_show_page (xr->cairo);
- cairo_save (xr->cairo);
- xr_driver_next_page (xr, xr->cairo);
- }
-}
-\f
-/* Functions for rendering a series of output items to a series of Cairo
- contexts, with pagination.
+ */
+ double paper[TABLE_N_AXES];
+ for (int a = 0; a < TABLE_N_AXES; a++)
+ paper[a] = xr_to_pt (xr_page_style_paper_size (
+ xr->page_style, xr->fsm_style, a));
- Used by PSPPIRE for printing, and by the basic Cairo output driver above as
- its underlying implementation.
+ xr->page_number++;
+ char *file_name = (xr->page_number > 1
+ ? xasprintf ("%s-%d", xr->driver.name, xr->page_number)
+ : xr->driver.name);
+
+ if (xr->trim)
+ {
+ /* Get the bounding box for the drawing surface. */
+ double ofs[TABLE_N_AXES], size[TABLE_N_AXES];
+ cairo_recording_surface_ink_extents (xr->drawing_surface,
+ &ofs[H], &ofs[V],
+ &size[H], &size[V]);
+ const int (*margins)[2] = xr->page_style->margins;
+ for (int a = 0; a < TABLE_N_AXES; a++)
+ {
+ double scale = XR_POINT;
+ size[a] += (margins[a][0] + margins[a][1]) / scale;
+ ofs[a] = -ofs[a] + margins[a][0] / scale;
+ }
- See the big comment in cairo.h for intended usage. */
+ switch (xr->output_type)
+ {
+ case XR_PDF:
+ case XR_PS:
+ xr_set_surface_size (xr->dest_surface, xr->output_type,
+ size[H], size[V]);
+ xr_copy_surface (xr->dest_surface, xr->drawing_surface,
+ ofs[H], ofs[V]);
+ cairo_surface_show_page (xr->dest_surface);
+ break;
-/* Gives new page CAIRO to XR for output. */
-void
-xr_driver_next_page (struct xr_driver *xr, cairo_t *cairo)
-{
- if (!xr->transparent)
- {
- cairo_save (cairo);
- cairo_set_source_rgb (cairo,
- xr->bg.r / 255.0, xr->bg.g / 255.0, xr->bg.b / 255.0);
- cairo_rectangle (cairo, 0, 0, xr->width, xr->length);
- cairo_fill (cairo);
- cairo_restore (cairo);
+ case XR_SVG:
+ {
+ cairo_surface_t *svg = cairo_svg_surface_create (
+ file_name, size[H], size[V]);
+ xr_copy_surface (svg, xr->drawing_surface, ofs[H], ofs[V]);
+ xr_report_error (cairo_surface_status (svg), file_name);
+ cairo_surface_destroy (svg);
+ }
+ break;
+
+ case XR_PNG:
+ {
+ cairo_surface_t *png = cairo_image_surface_create (
+ CAIRO_FORMAT_ARGB32, size[H], size[V]);
+ clear_rectangle (png, 0, 0, size[H], size[V]);
+ xr_copy_surface (png, xr->drawing_surface, ofs[H], ofs[V]);
+ xr_report_error (cairo_surface_write_to_png (png, file_name),
+ file_name);
+ cairo_surface_destroy (png);
+ }
+ break;
+ }
+
+ /* Destroy the recording surface and create a fresh one of the same
+ size. */
+ cairo_surface_destroy (xr->drawing_surface);
+ xr->drawing_surface = cairo_recording_surface_create (
+ CAIRO_CONTENT_COLOR_ALPHA,
+ &(cairo_rectangle_t) { .width = paper[H], .height = paper[V] });
}
- cairo_translate (cairo,
- xr_to_pt (xr->left_margin),
- xr_to_pt (xr->top_margin + xr->headings_height[0]));
+ else
+ {
+ switch (xr->output_type)
+ {
+ case XR_PDF:
+ case XR_PS:
+ cairo_surface_show_page (xr->dest_surface);
+ break;
- xr->page_number++;
- xr->cairo = cairo;
- xr->x = xr->y = 0;
+ case XR_SVG:
+ {
+ cairo_surface_t *svg = cairo_svg_surface_create (
+ file_name, paper[H], paper[V]);
+ xr_copy_surface (svg, xr->drawing_surface, 0.0, 0.0);
+ xr_report_error (cairo_surface_status (svg), file_name);
+ cairo_surface_destroy (svg);
+ }
+ break;
- xr_render_page_heading (xr->cairo, xr->fonts[XR_FONT_PROPORTIONAL].desc,
- &xr->headings[0], xr->page_number, xr->width, true,
- -xr->headings_height[0]);
- xr_render_page_heading (xr->cairo, xr->fonts[XR_FONT_PROPORTIONAL].desc,
- &xr->headings[1], xr->page_number, xr->width, true,
- xr->length);
+ case XR_PNG:
+ xr_report_error (cairo_surface_write_to_png (xr->drawing_surface,
+ file_name), file_name);
+ cairo_surface_destroy (xr->drawing_surface);
+ xr->drawing_surface = cairo_image_surface_create (
+ CAIRO_FORMAT_ARGB32, paper[H], paper[V]);
+ break;
+ }
+ }
- xr_driver_run_fsm (xr);
+ if (file_name != xr->driver.name)
+ free (file_name);
}
-/* Start rendering OUTPUT_ITEM to XR. Only valid if XR is not in the middle of
- rendering a previous output item, that is, only if xr_driver_need_new_page()
- returns false. */
-void
-xr_driver_output_item (struct xr_driver *xr,
- const struct output_item *output_item)
+static void
+xr_destroy (struct output_driver *driver)
{
- assert (xr->fsm == NULL);
- xr->fsm = xr_render_output_item (xr, output_item);
- xr_driver_run_fsm (xr);
-}
+ struct xr_driver *xr = xr_driver_cast (driver);
-/* Returns true if XR is in the middle of rendering an output item and needs a
- new page to be appended using xr_driver_next_page() to make progress,
- otherwise false. */
-bool
-xr_driver_need_new_page (const struct xr_driver *xr)
-{
- return xr->fsm != NULL;
-}
+ if (xr->pager)
+ xr_finish_page (xr);
-/* Returns true if the current page doesn't have any content yet. */
-bool
-xr_driver_is_page_blank (const struct xr_driver *xr)
-{
- return xr->y == 0;
-}
+ xr_pager_destroy (xr->pager);
-static void
-xr_driver_destroy_fsm (struct xr_driver *xr)
-{
- if (xr->fsm != NULL)
+ if (xr->drawing_surface && xr->drawing_surface != xr->dest_surface)
+ cairo_surface_destroy (xr->drawing_surface);
+ if (xr->dest_surface)
{
- xr->fsm->destroy (xr->fsm);
- xr->fsm = NULL;
+ cairo_surface_finish (xr->dest_surface);
+ cairo_status_t status = cairo_surface_status (xr->dest_surface);
+ if (status != CAIRO_STATUS_SUCCESS)
+ fprintf (stderr, _("error drawing output for %s driver: %s\n"),
+ output_driver_get_name (driver),
+ cairo_status_to_string (status));
+ cairo_surface_destroy (xr->dest_surface);
}
-}
-static void
-xr_driver_run_fsm (struct xr_driver *xr)
-{
- if (xr->fsm != NULL && !xr->fsm->render (xr->fsm, xr))
- xr_driver_destroy_fsm (xr);
+ xr_page_style_unref (xr->page_style);
+ xr_fsm_style_unref (xr->fsm_style);
+ free (xr);
}
-\f
-static void
-xr_layout_cell (struct xr_driver *, const struct table_cell *,
- int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
- int *width, int *height, int *brk);
static void
-set_source_rgba (cairo_t *cairo, const struct cell_color *color)
+xr_update_page_setup (struct output_driver *driver,
+ const struct page_setup *setup)
{
- cairo_set_source_rgba (cairo,
- color->r / 255., color->g / 255., color->b / 255.,
- color->alpha / 255.);
-}
+ struct xr_driver *xr = xr_driver_cast (driver);
-static void
-dump_line (struct xr_driver *xr, int x0, int y0, int x1, int y1, int style,
- const struct cell_color *color)
-{
- cairo_new_path (xr->cairo);
- if (!xr->systemcolors)
- set_source_rgba (xr->cairo, color);
- cairo_set_line_width (
- xr->cairo,
- xr_to_pt (style == RENDER_LINE_THICK ? XR_LINE_WIDTH * 2
- : style == RENDER_LINE_THIN ? XR_LINE_WIDTH / 2
- : XR_LINE_WIDTH));
- cairo_move_to (xr->cairo, xr_to_pt (x0 + xr->x), xr_to_pt (y0 + xr->y));
- cairo_line_to (xr->cairo, xr_to_pt (x1 + xr->x), xr_to_pt (y1 + xr->y));
- cairo_stroke (xr->cairo);
-}
+ const double scale = 72 * XR_POINT;
-static void UNUSED
-dump_rectangle (struct xr_driver *xr, int x0, int y0, int x1, int y1)
-{
- cairo_new_path (xr->cairo);
- cairo_set_line_width (xr->cairo, xr_to_pt (XR_LINE_WIDTH));
- cairo_move_to (xr->cairo, xr_to_pt (x0 + xr->x), xr_to_pt (y0 + xr->y));
- cairo_line_to (xr->cairo, xr_to_pt (x1 + xr->x), xr_to_pt (y0 + xr->y));
- cairo_line_to (xr->cairo, xr_to_pt (x1 + xr->x), xr_to_pt (y1 + xr->y));
- cairo_line_to (xr->cairo, xr_to_pt (x0 + xr->x), xr_to_pt (y1 + xr->y));
- cairo_close_path (xr->cairo);
- cairo_stroke (xr->cairo);
-}
+ int swap = setup->orientation == PAGE_LANDSCAPE;
+ enum table_axis h = H ^ swap;
+ enum table_axis v = V ^ swap;
-static void
-fill_rectangle (struct xr_driver *xr, int x0, int y0, int x1, int y1)
-{
- cairo_new_path (xr->cairo);
- cairo_set_line_width (xr->cairo, xr_to_pt (XR_LINE_WIDTH));
- cairo_rectangle (xr->cairo,
- xr_to_pt (x0 + xr->x), xr_to_pt (y0 + xr->y),
- xr_to_pt (x1 - x0), xr_to_pt (y1 - y0));
- cairo_fill (xr->cairo);
-}
+ struct xr_page_style *old_ps = xr->page_style;
+ xr->page_style = xmalloc (sizeof *xr->page_style);
+ *xr->page_style = (struct xr_page_style) {
+ .ref_cnt = 1,
-/* Draws a horizontal line X0...X2 at Y if LEFT says so,
- shortening it to X0...X1 if SHORTEN is true.
- Draws a horizontal line X1...X3 at Y if RIGHT says so,
- shortening it to X2...X3 if SHORTEN is true. */
-static void
-horz_line (struct xr_driver *xr, int x0, int x1, int x2, int x3, int y,
- enum render_line_style left, enum render_line_style right,
- const struct cell_color *left_color,
- const struct cell_color *right_color,
- bool shorten)
-{
- if (left != RENDER_LINE_NONE && right != RENDER_LINE_NONE && !shorten
- && cell_color_equal (left_color, right_color))
- dump_line (xr, x0, y, x3, y, left, left_color);
- else
- {
- if (left != RENDER_LINE_NONE)
- dump_line (xr, x0, y, shorten ? x1 : x2, y, left, left_color);
- if (right != RENDER_LINE_NONE)
- dump_line (xr, shorten ? x2 : x1, y, x3, y, right, right_color);
- }
-}
+ .margins = {
+ [H] = { setup->margins[h][0] * scale, setup->margins[h][1] * scale },
+ [V] = { setup->margins[v][0] * scale, setup->margins[v][1] * scale },
+ },
-/* Draws a vertical line Y0...Y2 at X if TOP says so,
- shortening it to Y0...Y1 if SHORTEN is true.
- Draws a vertical line Y1...Y3 at X if BOTTOM says so,
- shortening it to Y2...Y3 if SHORTEN is true. */
-static void
-vert_line (struct xr_driver *xr, int y0, int y1, int y2, int y3, int x,
- enum render_line_style top, enum render_line_style bottom,
- const struct cell_color *top_color,
- const struct cell_color *bottom_color,
- bool shorten)
-{
- if (top != RENDER_LINE_NONE && bottom != RENDER_LINE_NONE && !shorten
- && cell_color_equal (top_color, bottom_color))
- dump_line (xr, x, y0, x, y3, top, top_color);
- else
- {
- if (top != RENDER_LINE_NONE)
- dump_line (xr, x, y0, x, shorten ? y1 : y2, top, top_color);
- if (bottom != RENDER_LINE_NONE)
- dump_line (xr, x, shorten ? y2 : y1, x, y3, bottom, bottom_color);
- }
+ .initial_page_number = setup->initial_page_number,
+ .include_outline = old_ps->include_outline,
+ };
+ for (size_t i = 0; i < 2; i++)
+ page_heading_copy (&xr->page_style->headings[i], &setup->headings[i]);
+ xr_page_style_unref (old_ps);
+
+ struct xr_fsm_style *old_fs = xr->fsm_style;
+ xr->fsm_style = xmalloc (sizeof *xr->fsm_style);
+ *xr->fsm_style = (struct xr_fsm_style) {
+ .ref_cnt = 1,
+ .size = { [H] = setup->paper[H] * scale, [V] = setup->paper[V] * scale },
+ .min_break = {
+ [H] = setup->paper[H] * scale / 2,
+ [V] = setup->paper[V] * scale / 2,
+ },
+ .font = pango_font_description_copy (old_fs->font),
+ .fg = old_fs->fg,
+ .use_system_colors = old_fs->use_system_colors,
+ .object_spacing = setup->object_spacing * 72 * XR_POINT,
+ .font_resolution = old_fs->font_resolution,
+ };
+ xr_fsm_style_unref (old_fs);
+
+ xr_set_surface_size (xr->dest_surface, xr->output_type,
+ setup->paper[H] * 72.0, setup->paper[V] * 72.0);
}
static void
-xr_draw_line (void *xr_, int bb[TABLE_N_AXES][2],
- enum render_line_style styles[TABLE_N_AXES][2],
- struct cell_color colors[TABLE_N_AXES][2])
+xr_submit (struct output_driver *driver, const struct output_item *item)
{
- const int x0 = bb[H][0];
- const int y0 = bb[V][0];
- const int x3 = bb[H][1];
- const int y3 = bb[V][1];
- const int top = styles[H][0];
- const int bottom = styles[H][1];
-
- int start_side = render_direction_rtl();
- int end_side = !start_side;
- const int start_of_line = styles[V][start_side];
- const int end_of_line = styles[V][end_side];
- const struct cell_color *top_color = &colors[H][0];
- const struct cell_color *bottom_color = &colors[H][1];
- const struct cell_color *start_color = &colors[V][start_side];
- const struct cell_color *end_color = &colors[V][end_side];
-
- /* The algorithm here is somewhat subtle, to allow it to handle
- all the kinds of intersections that we need.
-
- Three additional ordinates are assigned along the x axis. The
- first is xc, midway between x0 and x3. The others are x1 and
- x2; for a single vertical line these are equal to xc, and for
- a double vertical line they are the ordinates of the left and
- right half of the double line.
-
- yc, y1, and y2 are assigned similarly along the y axis.
-
- The following diagram shows the coordinate system and output
- for double top and bottom lines, single left line, and no
- right line:
-
- x0 x1 xc x2 x3
- y0 ________________________
- | # # |
- | # # |
- | # # |
- | # # |
- | # # |
- y1 = y2 = yc |######### # |
- | # # |
- | # # |
- | # # |
- | # # |
- y3 |________#_____#_______|
- */
- struct xr_driver *xr = xr_;
-
- /* Offset from center of each line in a pair of double lines. */
- int double_line_ofs = (XR_LINE_SPACE + XR_LINE_WIDTH) / 2;
-
- /* Are the lines along each axis single or double?
- (It doesn't make sense to have different kinds of line on the
- same axis, so we don't try to gracefully handle that case.) */
- bool double_vert = top == RENDER_LINE_DOUBLE || bottom == RENDER_LINE_DOUBLE;
- bool double_horz = start_of_line == RENDER_LINE_DOUBLE || end_of_line == RENDER_LINE_DOUBLE;
-
- /* When horizontal lines are doubled,
- the left-side line along y1 normally runs from x0 to x2,
- and the right-side line along y1 from x3 to x1.
- If the top-side line is also doubled, we shorten the y1 lines,
- so that the left-side line runs only to x1,
- and the right-side line only to x2.
- Otherwise, the horizontal line at y = y1 below would cut off
- the intersection, which looks ugly:
- x0 x1 x2 x3
- y0 ________________________
- | # # |
- | # # |
- | # # |
- | # # |
- y1 |######### ########|
- | |
- | |
- y2 |######################|
- | |
- | |
- y3 |______________________|
- It is more of a judgment call when the horizontal line is
- single. We actually choose to cut off the line anyhow, as
- shown in the first diagram above.
- */
- bool shorten_y1_lines = top == RENDER_LINE_DOUBLE;
- bool shorten_y2_lines = bottom == RENDER_LINE_DOUBLE;
- bool shorten_yc_line = shorten_y1_lines && shorten_y2_lines;
- int horz_line_ofs = double_vert ? double_line_ofs : 0;
- int xc = (x0 + x3) / 2;
- int x1 = xc - horz_line_ofs;
- int x2 = xc + horz_line_ofs;
-
- bool shorten_x1_lines = start_of_line == RENDER_LINE_DOUBLE;
- bool shorten_x2_lines = end_of_line == RENDER_LINE_DOUBLE;
- bool shorten_xc_line = shorten_x1_lines && shorten_x2_lines;
- int vert_line_ofs = double_horz ? double_line_ofs : 0;
- int yc = (y0 + y3) / 2;
- int y1 = yc - vert_line_ofs;
- int y2 = yc + vert_line_ofs;
-
- if (!double_horz)
- horz_line (xr, x0, x1, x2, x3, yc, start_of_line, end_of_line,
- start_color, end_color, shorten_yc_line);
- else
+ struct xr_driver *xr = xr_driver_cast (driver);
+
+ if (!xr->pager)
{
- horz_line (xr, x0, x1, x2, x3, y1, start_of_line, end_of_line,
- start_color, end_color, shorten_y1_lines);
- horz_line (xr, x0, x1, x2, x3, y2, start_of_line, end_of_line,
- start_color, end_color, shorten_y2_lines);
+ xr->pager = xr_pager_create (xr->page_style, xr->fsm_style);
+ xr_pager_add_page (xr->pager, cairo_create (xr->drawing_surface));
}
- if (!double_vert)
- vert_line (xr, y0, y1, y2, y3, xc, top, bottom, top_color, bottom_color,
- shorten_xc_line);
- else
+ xr_pager_add_item (xr->pager, item);
+ while (xr_pager_needs_new_page (xr->pager))
{
- vert_line (xr, y0, y1, y2, y3, x1, top, bottom, top_color, bottom_color,
- shorten_x1_lines);
- vert_line (xr, y0, y1, y2, y3, x2, top, bottom, top_color, bottom_color,
- shorten_x2_lines);
+ xr_finish_page (xr);
+ xr_pager_add_page (xr->pager, cairo_create (xr->drawing_surface));
}
}
static void
-xr_measure_cell_width (void *xr_, const struct table_cell *cell,
- int *min_width, int *max_width)
+xr_setup (struct output_driver *driver, const struct page_setup *ps)
{
- struct xr_driver *xr = xr_;
- int bb[TABLE_N_AXES][2];
- int clip[TABLE_N_AXES][2];
- int h;
-
- bb[H][0] = 0;
- bb[H][1] = INT_MAX;
- bb[V][0] = 0;
- bb[V][1] = INT_MAX;
- clip[H][0] = clip[H][1] = clip[V][0] = clip[V][1] = 0;
- xr_layout_cell (xr, cell, bb, clip, max_width, &h, NULL);
-
- bb[H][1] = 1;
- xr_layout_cell (xr, cell, bb, clip, min_width, &h, NULL);
-
- if (*min_width > 0)
- *min_width += px_to_xr (cell->style->cell_style.margin[H][0]
- + cell->style->cell_style.margin[H][1]);
- if (*max_width > 0)
- *max_width += px_to_xr (cell->style->cell_style.margin[H][0]
- + cell->style->cell_style.margin[H][1]);
-}
+ struct xr_driver *xr = xr_driver_cast (driver);
-static int
-xr_measure_cell_height (void *xr_, const struct table_cell *cell, int width)
-{
- struct xr_driver *xr = xr_;
- int bb[TABLE_N_AXES][2];
- int clip[TABLE_N_AXES][2];
- int w, h;
-
- bb[H][0] = 0;
- bb[H][1] = width - px_to_xr (cell->style->cell_style.margin[H][0]
- + cell->style->cell_style.margin[H][1]);
- bb[V][0] = 0;
- bb[V][1] = INT_MAX;
- clip[H][0] = clip[H][1] = clip[V][0] = clip[V][1] = 0;
- xr_layout_cell (xr, cell, bb, clip, &w, &h, NULL);
- h += px_to_xr (cell->style->cell_style.margin[V][0]
- + cell->style->cell_style.margin[V][1]);
- return h;
-}
-
-static void xr_clip (struct xr_driver *, int clip[TABLE_N_AXES][2]);
-
-static void
-xr_draw_cell (void *xr_, const struct table_cell *cell, int color_idx,
- int bb[TABLE_N_AXES][2], int valign_offset,
- int spill[TABLE_N_AXES][2],
- int clip[TABLE_N_AXES][2])
-{
- struct xr_driver *xr = xr_;
- int w, h, brk;
-
- if (!xr->transparent)
- {
- cairo_save (xr->cairo);
- int bg_clip[TABLE_N_AXES][2];
- for (int axis = 0; axis < TABLE_N_AXES; axis++)
- {
- bg_clip[axis][0] = clip[axis][0];
- if (bb[axis][0] == clip[axis][0])
- bg_clip[axis][0] -= spill[axis][0];
-
- bg_clip[axis][1] = clip[axis][1];
- if (bb[axis][1] == clip[axis][1])
- bg_clip[axis][1] += spill[axis][1];
- }
- xr_clip (xr, bg_clip);
- set_source_rgba (xr->cairo, &cell->style->font_style.bg[color_idx]);
- fill_rectangle (xr,
- bb[H][0] - spill[H][0],
- bb[V][0] - spill[V][0],
- bb[H][1] + spill[H][1],
- bb[V][1] + spill[V][1]);
- cairo_restore (xr->cairo);
- }
- cairo_save (xr->cairo);
- if (!xr->systemcolors)
- set_source_rgba (xr->cairo, &cell->style->font_style.fg[color_idx]);
-
- bb[V][0] += valign_offset;
-
- for (int axis = 0; axis < TABLE_N_AXES; axis++)
- {
- bb[axis][0] += px_to_xr (cell->style->cell_style.margin[axis][0]);
- bb[axis][1] -= px_to_xr (cell->style->cell_style.margin[axis][1]);
- }
- if (bb[H][0] < bb[H][1] && bb[V][0] < bb[V][1])
- xr_layout_cell (xr, cell, bb, clip, &w, &h, &brk);
- cairo_restore (xr->cairo);
-}
-
-static int
-xr_adjust_break (void *xr_, const struct table_cell *cell,
- int width, int height)
-{
- struct xr_driver *xr = xr_;
- int bb[TABLE_N_AXES][2];
- int clip[TABLE_N_AXES][2];
- int w, h, brk;
-
- if (xr_measure_cell_height (xr_, cell, width) < height)
- return -1;
-
- bb[H][0] = 0;
- bb[H][1] = width - px_to_xr (cell->style->cell_style.margin[H][0]
- + cell->style->cell_style.margin[H][1]);
- if (bb[H][1] <= 0)
- return 0;
- bb[V][0] = 0;
- bb[V][1] = height - px_to_xr (cell->style->cell_style.margin[V][0]
- + cell->style->cell_style.margin[V][1]);
- clip[H][0] = clip[H][1] = clip[V][0] = clip[V][1] = 0;
- xr_layout_cell (xr, cell, bb, clip, &w, &h, &brk);
- return brk;
-}
-\f
-static void
-xr_clip (struct xr_driver *xr, int clip[TABLE_N_AXES][2])
-{
- if (clip[H][1] != INT_MAX || clip[V][1] != INT_MAX)
- {
- double x0 = xr_to_pt (clip[H][0] + xr->x);
- double y0 = xr_to_pt (clip[V][0] + xr->y);
- double x1 = xr_to_pt (clip[H][1] + xr->x);
- double y1 = xr_to_pt (clip[V][1] + xr->y);
-
- cairo_rectangle (xr->cairo, x0, y0, x1 - x0, y1 - y0);
- cairo_clip (xr->cairo);
- }
-}
-
-static void
-add_attr (PangoAttrList *list, PangoAttribute *attr,
- guint start_index, guint end_index)
-{
- attr->start_index = start_index;
- attr->end_index = end_index;
- pango_attr_list_insert (list, attr);
-}
-
-static void
-markup_escape (struct string *out, unsigned int options,
- const char *in, size_t len)
-{
- if (!(options & TAB_MARKUP))
- {
- ds_put_substring (out, ss_buffer (in, len == -1 ? strlen (in) : len));
- return;
- }
-
- while (len-- > 0)
- {
- int c = *in++;
- switch (c)
- {
- case 0:
- return;
- case '&':
- ds_put_cstr (out, "&");
- break;
- case '<':
- ds_put_cstr (out, "<");
- break;
- case '>':
- ds_put_cstr (out, ">");
- break;
- default:
- ds_put_byte (out, c);
- break;
- }
- }
-}
-
-static int
-get_layout_dimension (PangoLayout *layout, enum table_axis axis)
-{
- int size[TABLE_N_AXES];
- pango_layout_get_size (layout, &size[H], &size[V]);
- return size[axis];
-}
-
-static int
-xr_layout_cell_text (struct xr_driver *xr, const struct table_cell *cell,
- int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
- int *widthp, int *brk)
-{
- const struct font_style *font_style = &cell->style->font_style;
- const struct cell_style *cell_style = &cell->style->cell_style;
- unsigned int options = cell->options;
-
- enum table_axis X = options & TAB_ROTATE ? V : H;
- enum table_axis Y = !X;
- int R = options & TAB_ROTATE ? 0 : 1;
-
- struct xr_font *font = (options & TAB_FIX ? &xr->fonts[XR_FONT_FIXED]
- : &xr->fonts[XR_FONT_PROPORTIONAL]);
- struct xr_font local_font;
- if (font_style->typeface)
- {
- PangoFontDescription *desc = parse_font (
- font_style->typeface,
- font_style->size ? font_style->size * 1000 * xr->font_scale : 10000,
- font_style->bold, font_style->italic);
- if (desc)
- {
- PangoLayout *layout = pango_cairo_create_layout (xr->cairo);
- pango_layout_set_font_description (layout, desc);
-
- local_font.desc = desc;
- local_font.layout = layout;
- font = &local_font;
- }
- }
-
- const char *text = cell->text;
- enum table_halign halign = table_halign_interpret (
- cell_style->halign, cell->options & TAB_NUMERIC);
- if (cell_style->halign == TABLE_HALIGN_DECIMAL && !(options & TAB_ROTATE))
- {
- int margin_adjustment = -px_to_xr (cell_style->decimal_offset);
-
- const char *decimal = strrchr (text, cell_style->decimal_char);
- if (decimal)
- {
- pango_layout_set_text (font->layout, decimal, strlen (decimal));
- pango_layout_set_width (font->layout, -1);
- margin_adjustment += get_layout_dimension (font->layout, H);
- }
-
- if (margin_adjustment < 0)
- bb[H][1] += margin_adjustment;
- }
-
- struct string tmp = DS_EMPTY_INITIALIZER;
- PangoAttrList *attrs = NULL;
-
- /* Deal with an oddity of the Unicode line-breaking algorithm (or perhaps in
- Pango's implementation of it): it will break after a period or a comma
- that precedes a digit, e.g. in ".000" it will break after the period.
- This code looks for such a situation and inserts a U+2060 WORD JOINER
- to prevent the break.
-
- This isn't necessary when the decimal point is between two digits
- (e.g. "0.000" won't be broken) or when the display width is not limited so
- that word wrapping won't happen.
-
- It isn't necessary to look for more than one period or comma, as would
- happen with grouping like 1,234,567.89 or 1.234.567,89 because if groups
- are present then there will always be a digit on both sides of every
- period and comma. */
- if (options & TAB_MARKUP)
- {
- PangoAttrList *new_attrs;
- char *new_text;
- if (pango_parse_markup (text, -1, 0, &new_attrs, &new_text, NULL, NULL))
- {
- attrs = new_attrs;
- tmp.ss = ss_cstr (new_text);
- tmp.capacity = tmp.ss.length;
- }
- else
- {
- /* XXX should we report the error? */
- ds_put_cstr (&tmp, text);
- }
- }
- else if (options & TAB_ROTATE || bb[H][1] != INT_MAX)
- {
- const char *decimal = text + strcspn (text, ".,");
- if (decimal[0]
- && c_isdigit (decimal[1])
- && (decimal == text || !c_isdigit (decimal[-1])))
- {
- ds_extend (&tmp, strlen (text) + 16);
- markup_escape (&tmp, options, text, decimal - text + 1);
- ds_put_unichar (&tmp, 0x2060 /* U+2060 WORD JOINER */);
- markup_escape (&tmp, options, decimal + 1, -1);
- }
- }
-
- if (font_style->underline)
- {
- if (!attrs)
- attrs = pango_attr_list_new ();
- pango_attr_list_insert (attrs, pango_attr_underline_new (
- PANGO_UNDERLINE_SINGLE));
- }
-
- if (cell->n_footnotes || cell->n_subscripts || cell->superscript)
- {
- /* If we haven't already put TEXT into tmp, do it now. */
- if (ds_is_empty (&tmp))
- {
- ds_extend (&tmp, strlen (text) + 16);
- markup_escape (&tmp, options, text, -1);
- }
-
- size_t subscript_ofs = ds_length (&tmp);
- for (size_t i = 0; i < cell->n_subscripts; i++)
- {
- if (i)
- ds_put_byte (&tmp, ',');
- ds_put_cstr (&tmp, cell->subscripts[i]);
- }
-
- size_t superscript_ofs = ds_length (&tmp);
- if (cell->superscript)
- ds_put_cstr (&tmp, cell->superscript);
-
- size_t footnote_ofs = ds_length (&tmp);
- for (size_t i = 0; i < cell->n_footnotes; i++)
- {
- if (i)
- ds_put_byte (&tmp, ',');
- ds_put_cstr (&tmp, cell->footnotes[i]->marker);
- }
-
- /* Allow footnote markers to occupy the right margin. That way, numbers
- in the column are still aligned. */
- if (cell->n_footnotes && halign == TABLE_HALIGN_RIGHT)
- {
- /* Measure the width of the footnote marker, so we know how much we
- need to make room for. */
- pango_layout_set_text (font->layout, ds_cstr (&tmp) + footnote_ofs,
- ds_length (&tmp) - footnote_ofs);
-
- PangoAttrList *fn_attrs = pango_attr_list_new ();
- pango_attr_list_insert (
- fn_attrs, pango_attr_scale_new (PANGO_SCALE_SMALL));
- pango_attr_list_insert (fn_attrs, pango_attr_rise_new (3000));
- pango_layout_set_attributes (font->layout, fn_attrs);
- pango_attr_list_unref (fn_attrs);
- int footnote_width = get_layout_dimension (font->layout, X);
-
- /* Bound the adjustment by the width of the right margin. */
- int right_margin = px_to_xr (cell_style->margin[X][R]);
- int footnote_adjustment = MIN (footnote_width, right_margin);
-
- /* Adjust the bounding box. */
- if (options & TAB_ROTATE)
- footnote_adjustment = -footnote_adjustment;
- bb[X][R] += footnote_adjustment;
-
- /* Clean up. */
- pango_layout_set_attributes (font->layout, NULL);
- }
-
- /* Set attributes. */
- if (!attrs)
- attrs = pango_attr_list_new ();
- add_attr (attrs, pango_attr_font_desc_new (font->desc), subscript_ofs,
- PANGO_ATTR_INDEX_TO_TEXT_END);
- add_attr (attrs, pango_attr_scale_new (PANGO_SCALE_SMALL),
- subscript_ofs, PANGO_ATTR_INDEX_TO_TEXT_END);
- if (cell->n_subscripts)
- add_attr (attrs, pango_attr_rise_new (-3000), subscript_ofs,
- superscript_ofs - subscript_ofs);
- if (cell->superscript || cell->n_footnotes)
- add_attr (attrs, pango_attr_rise_new (3000), superscript_ofs,
- PANGO_ATTR_INDEX_TO_TEXT_END);
- }
-
- /* Set the attributes, if any. */
- if (attrs)
- {
- pango_layout_set_attributes (font->layout, attrs);
- pango_attr_list_unref (attrs);
- }
-
- /* Set the text. */
- if (ds_is_empty (&tmp))
- pango_layout_set_text (font->layout, text, -1);
- else
- pango_layout_set_text (font->layout, ds_cstr (&tmp), ds_length (&tmp));
- ds_destroy (&tmp);
-
- pango_layout_set_alignment (font->layout,
- (halign == TABLE_HALIGN_RIGHT ? PANGO_ALIGN_RIGHT
- : halign == TABLE_HALIGN_LEFT ? PANGO_ALIGN_LEFT
- : PANGO_ALIGN_CENTER));
- pango_layout_set_width (
- font->layout,
- bb[X][1] == INT_MAX ? -1 : xr_to_pango (bb[X][1] - bb[X][0]));
- pango_layout_set_wrap (font->layout, PANGO_WRAP_WORD);
-
- if (clip[H][0] != clip[H][1])
- {
- cairo_save (xr->cairo);
- if (!(options & TAB_ROTATE))
- xr_clip (xr, clip);
- if (options & TAB_ROTATE)
- {
- cairo_translate (xr->cairo,
- xr_to_pt (bb[H][0] + xr->x),
- xr_to_pt (bb[V][1] + xr->y));
- cairo_rotate (xr->cairo, -M_PI_2);
- }
- else
- cairo_translate (xr->cairo,
- xr_to_pt (bb[H][0] + xr->x),
- xr_to_pt (bb[V][0] + xr->y));
- pango_cairo_show_layout (xr->cairo, font->layout);
-
- /* If enabled, this draws a blue rectangle around the extents of each
- line of text, which can be rather useful for debugging layout
- issues. */
- if (0)
- {
- PangoLayoutIter *iter;
- iter = pango_layout_get_iter (font->layout);
- do
- {
- PangoRectangle extents;
-
- pango_layout_iter_get_line_extents (iter, &extents, NULL);
- cairo_save (xr->cairo);
- cairo_set_source_rgb (xr->cairo, 1, 0, 0);
- dump_rectangle (xr,
- pango_to_xr (extents.x) - xr->x,
- pango_to_xr (extents.y) - xr->y,
- pango_to_xr (extents.x + extents.width) - xr->x,
- pango_to_xr (extents.y + extents.height) - xr->y);
- cairo_restore (xr->cairo);
- }
- while (pango_layout_iter_next_line (iter));
- pango_layout_iter_free (iter);
- }
-
- cairo_restore (xr->cairo);
- }
-
- int size[TABLE_N_AXES];
- pango_layout_get_size (font->layout, &size[H], &size[V]);
- int w = pango_to_xr (size[X]);
- int h = pango_to_xr (size[Y]);
- if (w > *widthp)
- *widthp = w;
- if (bb[V][0] + h >= bb[V][1] && !(options & TAB_ROTATE))
- {
- PangoLayoutIter *iter;
- int best = 0;
-
- /* Choose a breakpoint between lines instead of in the middle of one. */
- iter = pango_layout_get_iter (font->layout);
- do
- {
- PangoRectangle extents;
- int y0, y1;
- int bottom;
-
- pango_layout_iter_get_line_extents (iter, NULL, &extents);
- pango_layout_iter_get_line_yrange (iter, &y0, &y1);
- extents.x = pango_to_xr (extents.x);
- extents.y = pango_to_xr (y0);
- extents.width = pango_to_xr (extents.width);
- extents.height = pango_to_xr (y1 - y0);
- bottom = bb[V][0] + extents.y + extents.height;
- if (bottom < bb[V][1])
- {
- if (brk && clip[H][0] != clip[H][1])
- best = bottom;
- if (brk)
- *brk = bottom;
- }
- else
- break;
- }
- while (pango_layout_iter_next_line (iter));
- pango_layout_iter_free (iter);
-
- /* If enabled, draws a green line across the chosen breakpoint, which can
- be useful for debugging issues with breaking. */
- if (0)
- {
- if (best)
- dump_line (xr, -xr->left_margin, best,
- xr->width + xr->right_margin, best,
- RENDER_LINE_SINGLE,
- &(struct cell_color) CELL_COLOR (0, 255, 0));
- }
- }
-
- pango_layout_set_attributes (font->layout, NULL);
-
- if (font == &local_font)
- {
- g_object_unref (G_OBJECT (font->layout));
- pango_font_description_free (font->desc);
- }
-
- return h;
-}
-
-static void
-xr_layout_cell (struct xr_driver *xr, const struct table_cell *cell,
- int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
- int *width, int *height, int *brk)
-{
- *width = 0;
- *height = 0;
-
- /* If enabled, draws a blue rectangle around the cell extents, which can be
- useful for debugging layout. */
- if (0)
- {
- if (clip[H][0] != clip[H][1])
- {
- cairo_save (xr->cairo);
- cairo_set_source_rgb (xr->cairo, 0, 0, 1);
- dump_rectangle (xr, bb[H][0], bb[V][0], bb[H][1], bb[V][1]);
- cairo_restore (xr->cairo);
- }
- }
-
- if (brk)
- *brk = bb[V][0];
- *height = xr_layout_cell_text (xr, cell, bb, clip, width, brk);
+ if (!xr->pager)
+ xr_update_page_setup (driver, ps);
}
\f
struct output_driver_factory pdf_driver_factory =
{ "ps", "pspp.ps", xr_ps_create };
struct output_driver_factory svg_driver_factory =
{ "svg", "pspp.svg", xr_svg_create };
+struct output_driver_factory png_driver_factory =
+ { "png", "pspp.png", xr_png_create };
static const struct output_driver_class cairo_driver_class =
{
- "cairo",
- xr_destroy,
- xr_submit,
- xr_flush,
+ .name = "cairo",
+ .destroy = xr_destroy,
+ .submit = xr_submit,
+ .setup = xr_setup,
+ .handles_groups = true,
};
-\f
-/* GUI rendering helpers. */
-
-struct xr_rendering
- {
- struct output_item *item;
-
- /* Table items. */
- struct render_pager *p;
- struct xr_driver *xr;
- };
-
-#define CHART_WIDTH 500
-#define CHART_HEIGHT 375
-
-
-
-struct xr_driver *
-xr_driver_create (cairo_t *cairo, struct string_map *options)
-{
- struct xr_driver *xr = xr_allocate ("cairo", 0, options, 1.0);
- xr_set_cairo (xr, cairo);
- return xr;
-}
-
-/* Destroy XR, which should have been created with xr_driver_create(). Any
- cairo_t added to XR is not destroyed, because it is owned by the client. */
-void
-xr_driver_destroy (struct xr_driver *xr)
-{
- if (xr != NULL)
- {
- xr->cairo = NULL;
- output_driver_destroy (&xr->driver);
- }
-}
-
-static struct xr_rendering *
-xr_rendering_create_text (struct xr_driver *xr, const char *text, cairo_t *cr)
-{
- struct table_item *table_item;
- struct xr_rendering *r;
-
- table_item = table_item_create (table_from_string (text), NULL, NULL);
- r = xr_rendering_create (xr, &table_item->output_item, cr);
- table_item_unref (table_item);
-
- return r;
-}
-
-void
-xr_rendering_apply_options (struct xr_rendering *xr, struct string_map *o)
-{
- if (is_table_item (xr->item))
- apply_options (xr->xr, o);
-}
-
-struct xr_rendering *
-xr_rendering_create (struct xr_driver *xr, const struct output_item *item,
- cairo_t *cr)
-{
- struct xr_rendering *r = NULL;
-
- if (is_text_item (item))
- r = xr_rendering_create_text (xr, text_item_get_text (to_text_item (item)),
- cr);
- else if (is_message_item (item))
- {
- const struct message_item *message_item = to_message_item (item);
- char *s = msg_to_string (message_item_get_msg (message_item));
- r = xr_rendering_create_text (xr, s, cr);
- free (s);
- }
- else if (is_table_item (item))
- {
- r = xzalloc (sizeof *r);
- r->item = output_item_ref (item);
- r->xr = xr;
- xr_set_cairo (xr, cr);
- r->p = render_pager_create (xr->params, to_table_item (item));
- }
- else if (is_chart_item (item))
- {
- r = xzalloc (sizeof *r);
- r->item = output_item_ref (item);
- }
- else if (is_group_open_item (item))
- r = xr_rendering_create_text (xr, to_group_open_item (item)->command_name,
- cr);
-
- return r;
-}
-
-void
-xr_rendering_destroy (struct xr_rendering *r)
-{
- if (r)
- {
- output_item_unref (r->item);
- render_pager_destroy (r->p);
- free (r);
- }
-}
-
-void
-xr_rendering_measure (const struct xr_rendering *r, int *wp, int *hp)
-{
- int w, h;
-
- if (is_table_item (r->item))
- {
- w = render_pager_get_size (r->p, H) / XR_POINT;
- h = render_pager_get_size (r->p, V) / XR_POINT;
- }
- else
- {
- w = CHART_WIDTH;
- h = CHART_HEIGHT;
- }
-
- if (wp)
- *wp = w;
- if (hp)
- *hp = h;
-}
-
-static void xr_draw_chart (const struct chart_item *, cairo_t *,
- double x, double y, double width, double height);
-
-/* Draws onto CR */
-void
-xr_rendering_draw (struct xr_rendering *r, cairo_t *cr,
- int x0, int y0, int x1, int y1)
-{
- if (is_table_item (r->item))
- {
- struct xr_driver *xr = r->xr;
-
- xr_set_cairo (xr, cr);
-
- render_pager_draw_region (r->p, x0 * XR_POINT, y0 * XR_POINT,
- (x1 - x0) * XR_POINT, (y1 - y0) * XR_POINT);
- }
- else
- xr_draw_chart (to_chart_item (r->item), cr,
- 0, 0, CHART_WIDTH, CHART_HEIGHT);
-}
-
-static void
-xr_draw_chart (const struct chart_item *chart_item, cairo_t *cr,
- double x, double y, double width, double height)
-{
- struct xrchart_geometry geom;
-
- cairo_save (cr);
- cairo_translate (cr, x, y + height);
- cairo_scale (cr, 1.0, -1.0);
- xrchart_geometry_init (cr, &geom, width, height);
- if (is_boxplot (chart_item))
- xrchart_draw_boxplot (chart_item, cr, &geom);
- else if (is_histogram_chart (chart_item))
- xrchart_draw_histogram (chart_item, cr, &geom);
- else if (is_np_plot_chart (chart_item))
- xrchart_draw_np_plot (chart_item, cr, &geom);
- else if (is_piechart (chart_item))
- xrchart_draw_piechart (chart_item, cr, &geom);
- else if (is_barchart (chart_item))
- xrchart_draw_barchart (chart_item, cr, &geom);
- else if (is_roc_chart (chart_item))
- xrchart_draw_roc (chart_item, cr, &geom);
- else if (is_scree (chart_item))
- xrchart_draw_scree (chart_item, cr, &geom);
- else if (is_spreadlevel_plot_chart (chart_item))
- xrchart_draw_spreadlevel (chart_item, cr, &geom);
- else if (is_scatterplot_chart (chart_item))
- xrchart_draw_scatterplot (chart_item, cr, &geom);
- else
- NOT_REACHED ();
- xrchart_geometry_free (cr, &geom);
-
- cairo_restore (cr);
-}
-
-char *
-xr_draw_png_chart (const struct chart_item *item,
- const char *file_name_template, int number,
- const struct cell_color *fg,
- const struct cell_color *bg)
-{
- const int width = 640;
- const int length = 480;
-
- cairo_surface_t *surface;
- cairo_status_t status;
- const char *number_pos;
- char *file_name;
- cairo_t *cr;
-
- number_pos = strchr (file_name_template, '#');
- if (number_pos != NULL)
- file_name = xasprintf ("%.*s%d%s.png", (int) (number_pos - file_name_template),
- file_name_template, number, number_pos + 1);
- else
- file_name = xasprintf ("%s.png", file_name_template);
-
- surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, length);
- cr = cairo_create (surface);
-
- cairo_set_source_rgb (cr, bg->r / 255.0, bg->g / 255.0, bg->b / 255.0);
- cairo_paint (cr);
-
- cairo_set_source_rgb (cr, fg->r / 255.0, fg->g / 255.0, fg->b / 255.0);
-
- xr_draw_chart (item, cr, 0.0, 0.0, width, length);
-
- status = cairo_surface_write_to_png (surface, file_name);
- if (status != CAIRO_STATUS_SUCCESS)
- msg (ME, _("error writing output file `%s': %s"),
- file_name, cairo_status_to_string (status));
-
- cairo_destroy (cr);
- cairo_surface_destroy (surface);
-
- return file_name;
-}
-
-
-char *
-xr_draw_eps_chart (const struct chart_item *item,
- const char *file_name_template, int number,
- const struct cell_color *fg,
- const struct cell_color *bg)
-{
- const int width = 640;
- const int length = 480;
-
- cairo_surface_t *surface;
- const char *number_pos;
- char *file_name;
- cairo_t *cr;
-
- number_pos = strchr (file_name_template, '#');
- if (number_pos != NULL)
- file_name = xasprintf ("%.*s%d%s.eps", (int) (number_pos - file_name_template),
- file_name_template, number, number_pos + 1);
- else
- file_name = xasprintf ("%s.eps", file_name_template);
-
- surface = cairo_ps_surface_create (file_name, width, length);
- cairo_ps_surface_set_eps (surface, true);
- cr = cairo_create (surface);
-
- cairo_set_source_rgb (cr, bg->r / 255.0, bg->g / 255.0, bg->b / 255.0);
- cairo_paint (cr);
-
- cairo_set_source_rgb (cr, fg->r / 255.0, fg->g / 255.0, fg->b / 255.0);
-
- xr_draw_chart (item, cr, 0.0, 0.0, width, length);
-
- cairo_destroy (cr);
- cairo_surface_destroy (surface);
-
- return file_name;
-}
-
-\f
-
-struct xr_table_state
- {
- struct xr_render_fsm fsm;
- struct render_pager *p;
- };
-
-static bool
-xr_table_render (struct xr_render_fsm *fsm, struct xr_driver *xr)
-{
- struct xr_table_state *ts = UP_CAST (fsm, struct xr_table_state, fsm);
-
- while (render_pager_has_next (ts->p))
- {
- int used;
-
- used = render_pager_draw_next (ts->p, xr->length - xr->y);
- if (!used)
- {
- assert (xr->y > 0);
- return true;
- }
- else
- xr->y += used;
- }
- return false;
-}
-
-static void
-xr_table_destroy (struct xr_render_fsm *fsm)
-{
- struct xr_table_state *ts = UP_CAST (fsm, struct xr_table_state, fsm);
-
- render_pager_destroy (ts->p);
- free (ts);
-}
-
-static struct xr_render_fsm *
-xr_render_table (struct xr_driver *xr, struct table_item *table_item)
-{
- struct xr_table_state *ts;
-
- ts = xmalloc (sizeof *ts);
- ts->fsm.render = xr_table_render;
- ts->fsm.destroy = xr_table_destroy;
-
- if (xr->y > 0)
- xr->y += xr->char_height;
-
- ts->p = render_pager_create (xr->params, table_item);
- table_item_unref (table_item);
-
- return &ts->fsm;
-}
-\f
-struct xr_chart_state
- {
- struct xr_render_fsm fsm;
- struct chart_item *chart_item;
- };
-
-static bool
-xr_chart_render (struct xr_render_fsm *fsm, struct xr_driver *xr)
-{
- struct xr_chart_state *cs = UP_CAST (fsm, struct xr_chart_state, fsm);
-
- const int chart_height = 0.8 * (xr->length < xr->width ? xr->length : xr->width);
-
- if (xr->y > xr->length - chart_height)
- return true;
-
- if (xr->cairo != NULL)
- {
- xr_draw_chart (cs->chart_item, xr->cairo,
- 0.0,
- xr_to_pt (xr->y),
- xr_to_pt (xr->width),
- xr_to_pt (chart_height));
- }
- xr->y += chart_height;
-
- return false;
-}
-
-static void
-xr_chart_destroy (struct xr_render_fsm *fsm)
-{
- struct xr_chart_state *cs = UP_CAST (fsm, struct xr_chart_state, fsm);
-
- chart_item_unref (cs->chart_item);
- free (cs);
-}
-
-static struct xr_render_fsm *
-xr_render_chart (const struct chart_item *chart_item)
-{
- struct xr_chart_state *cs;
-
- cs = xmalloc (sizeof *cs);
- cs->fsm.render = xr_chart_render;
- cs->fsm.destroy = xr_chart_destroy;
- cs->chart_item = chart_item_ref (chart_item);
-
- return &cs->fsm;
-}
-\f
-static bool
-xr_eject_render (struct xr_render_fsm *fsm UNUSED, struct xr_driver *xr)
-{
- return xr->y > 0;
-}
-
-static void
-xr_eject_destroy (struct xr_render_fsm *fsm UNUSED)
-{
- /* Nothing to do. */
-}
-
-static struct xr_render_fsm *
-xr_render_eject (void)
-{
- static struct xr_render_fsm eject_renderer =
- {
- xr_eject_render,
- xr_eject_destroy
- };
-
- return &eject_renderer;
-}
-\f
-static struct xr_render_fsm *
-xr_render_text (struct xr_driver *xr, const struct text_item *text_item)
-{
- enum text_item_type type = text_item_get_type (text_item);
- const char *text = text_item_get_text (text_item);
-
- switch (type)
- {
- case TEXT_ITEM_PAGE_TITLE:
- string_map_replace (&xr->heading_vars, "PageTitle", text);
- break;
-
- case TEXT_ITEM_EJECT_PAGE:
- if (xr->y > 0)
- return xr_render_eject ();
- break;
-
- default:
- return xr_render_table (
- xr, text_item_to_table_item (text_item_ref (text_item)));
- }
-
- return NULL;
-}
-
-static struct xr_render_fsm *
-xr_render_message (struct xr_driver *xr,
- const struct message_item *message_item)
-{
- char *s = msg_to_string (message_item_get_msg (message_item));
- struct text_item *item = text_item_create (TEXT_ITEM_LOG, s);
- free (s);
- return xr_render_table (xr, text_item_to_table_item (item));
-}
-
-static struct xr_render_fsm *
-xr_render_output_item (struct xr_driver *xr,
- const struct output_item *output_item)
-{
- if (is_table_item (output_item))
- return xr_render_table (xr, table_item_ref (to_table_item (output_item)));
- else if (is_chart_item (output_item))
- return xr_render_chart (to_chart_item (output_item));
- else if (is_text_item (output_item))
- return xr_render_text (xr, to_text_item (output_item));
- else if (is_message_item (output_item))
- return xr_render_message (xr, to_message_item (output_item));
- else
- return NULL;
-}
-
-bool
-xr_draw_svg_file (struct xr_rendering *r,
- const char *filename)
-{
- int width, height;
- g_assert (r);
- xr_rendering_measure (r, &width, &height);
- cairo_surface_t *surface = cairo_svg_surface_create (filename, width, height);
- if (!surface)
- {
- g_error ("Could not create cairo svg surface with file %s", filename);
- return FALSE;
- }
- cairo_t *cr = cairo_create (surface);
- xr_rendering_draw (r, cr, 0, 0, width, height);
- cairo_destroy (cr);
- cairo_surface_destroy (surface);
- return TRUE;
-}
projects / pspp / blobdiff