/* PSPP - a program for statistical analysis.
- Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+ Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include <config.h>
-#include <output/cairo.h>
-
-#include <libpspp/assertion.h>
-#include <libpspp/cast.h>
-#include <libpspp/start-date.h>
-#include <libpspp/str.h>
-#include <libpspp/string-map.h>
-#include <libpspp/version.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/plot-hist.h>
-#include <output/charts/roc-chart.h>
-#include <output/charts/scree.h>
-#include <output/driver-provider.h>
-#include <output/options.h>
-#include <output/render.h>
-#include <output/tab.h>
-#include <output/table-item.h>
-#include <output/table.h>
-#include <output/text-item.h>
+#include "output/cairo.h"
+
+#include "libpspp/assertion.h"
+#include "libpspp/cast.h"
+#include "libpspp/message.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/driver-provider.h"
+#include "output/message-item.h"
+#include "output/options.h"
+#include "output/render.h"
+#include "output/tab.h"
+#include "output/table-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 <math.h>
#include <pango/pango-font.h>
#include <pango/pango-layout.h>
#include <pango/pango.h>
#include <pango/pangocairo.h>
#include <stdlib.h>
-#include "error.h"
-#include "intprops.h"
-#include "minmax.h"
-#include "xalloc.h"
+#include "gl/intprops.h"
+#include "gl/minmax.h"
+#include "gl/xalloc.h"
#include "gettext.h"
#define _(msgid) gettext (msgid)
#define H TABLE_HORZ
#define V TABLE_VERT
-/* Measurements as we present to the rest of PSPP. */
+/* The unit used for internal measurements is inch/(72 * XR_POINT). */
#define XR_POINT PANGO_SCALE
-#define XR_INCH (XR_POINT * 72)
/* Conversions to and from points. */
static double
XR_FONT_PROPORTIONAL,
XR_FONT_EMPHASIS,
XR_FONT_FIXED,
+ XR_FONT_MARKER,
XR_N_FONTS
};
/* A font for use with Cairo. */
struct xr_font
{
- char *string;
PangoFontDescription *desc;
PangoLayout *layout;
- PangoFontMetrics *metrics;
+ };
+
+/* 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 *);
+
+ /* Destroys the output item. */
+ void (*destroy) (struct xr_render_fsm *);
};
/* Cairo output driver. */
struct output_driver driver;
/* User parameters. */
- bool headers; /* Draw headers at top of page? */
-
struct xr_font fonts[XR_N_FONTS];
- int font_height; /* In XR units. */
int width; /* Page width minus margins. */
int length; /* Page length minus margins and header. */
- int left_margin; /* Left margin in XR units. */
- int right_margin; /* Right margin in XR units. */
- int top_margin; /* Top margin in XR units. */
- int bottom_margin; /* Bottom margin in XR units. */
+ 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_gutter; /* Space around lines. */
int line_space; /* Space between lines. */
int line_width; /* Width of lines. */
- enum xr_output_type file_type; /* Type of output file. */
+ int cell_margin;
+
+ int min_break[TABLE_N_AXES]; /* Min cell size to break across pages. */
+
+ struct xr_color bg; /* Background color */
+ struct xr_color fg; /* Foreground color */
/* Internal state. */
struct render_params *params;
+ int char_width, char_height;
+ char *command_name;
char *title;
char *subtitle;
cairo_t *cairo;
int page_number; /* Current page number. */
- int y;
+ int x, y;
+ struct xr_render_fsm *fsm;
+ int nest;
};
-static void xr_show_page (struct xr_driver *);
-static void draw_headers (struct xr_driver *);
+static const struct output_driver_class cairo_driver_class;
-static bool load_font (struct xr_driver *, struct xr_font *);
-static void free_font (struct xr_font *);
+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]);
static void xr_measure_cell_width (void *, const struct table_cell *,
- int *min, int *max);
+ int footnote_idx, 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 footnote_idx, int width);
+static void xr_draw_cell (void *, const struct table_cell *, int footnote_idx,
int bb[TABLE_N_AXES][2],
int clip[TABLE_N_AXES][2]);
+static int xr_adjust_break (void *, const struct table_cell *, int footnote_idx,
+ int width, int height);
+
+static struct xr_render_fsm *xr_render_output_item (
+ struct xr_driver *, const struct output_item *);
\f
-/* Driver initialization. */
+/* Output driver basics. */
static struct xr_driver *
xr_driver_cast (struct output_driver *driver)
{
- assert (driver->class == &cairo_class);
+ assert (driver->class == &cairo_driver_class);
return UP_CAST (driver, struct xr_driver, driver);
}
return driver_option_get (d, options, key, default_value);
}
-static struct xr_driver *
-xr_allocate (const char *name, int device_type, struct string_map *o)
+/* 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 xr_color *color)
{
- struct output_driver *d;
- struct xr_driver *xr;
+ int red, green, blue;
+ char *string = parse_string (opt (d, options, key, default_value));
+
+ if (3 != sscanf (string, "#%04x%04x%04x", &red, &green, &blue))
+ {
+ /* If the parsed option string fails, then try the default value */
+ if ( 3 != sscanf (default_value, "#%04x%04x%04x", &red, &green, &blue))
+ {
+ /* ... and if that fails set everything to zero */
+ red = green = blue = 0;
+ }
+ }
+
+ free (string);
+
+ /* Convert 16 bit ints to float */
+ color->red = red / (double) 0xFFFF;
+ color->green = green / (double) 0xFFFF;
+ color->blue = blue / (double) 0xFFFF;
+}
+
+static PangoFontDescription *
+parse_font (struct output_driver *d, struct string_map *options,
+ const char *key, const char *default_value,
+ int default_size)
+{
+ PangoFontDescription *desc;
+ char *string;
+
+ /* Parse KEY as a font description. */
+ string = parse_string (opt (d, options, key, default_value));
+ desc = pango_font_description_from_string (string);
+ if (desc == NULL)
+ {
+ msg (MW, _("`%s': bad font specification"), string);
+
+ /* Fall back to DEFAULT_VALUE, which had better be a valid font
+ description. */
+ desc = pango_font_description_from_string (default_value);
+ assert (desc != NULL);
+ }
+ free (string);
- xr = xzalloc (sizeof *xr);
- d = &xr->driver;
- output_driver_init (d, &cairo_class, name, device_type);
- xr->headers = true;
- xr->font_height = XR_POINT * 10;
- xr->fonts[XR_FONT_FIXED].string
- = parse_string (opt (d, o, "fixed-font", "monospace"));
- xr->fonts[XR_FONT_PROPORTIONAL].string
- = parse_string (opt (d, o, "prop-font", "serif"));
- xr->fonts[XR_FONT_EMPHASIS].string
- = parse_string (opt (d, o, "emph-font", "serif italic"));
- xr->line_gutter = XR_POINT;
+ /* If the font description didn't include an explicit font size, then set it
+ to DEFAULT_SIZE, which is in inch/72000 units. */
+ if (!(pango_font_description_get_set_fields (desc) & PANGO_FONT_MASK_SIZE))
+ pango_font_description_set_size (desc,
+ (default_size / 1000.0) * PANGO_SCALE);
+
+ return desc;
+}
+
+
+static void
+apply_options (struct xr_driver *xr, struct string_map *o)
+{
+ 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];
+
+ /* 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 (d, o, "fixed-font", "monospace",
+ font_size);
+ xr->fonts[XR_FONT_PROPORTIONAL].desc = parse_font (d, o, "prop-font",
+ "serif", font_size);
+ xr->fonts[XR_FONT_EMPHASIS].desc = parse_font (d, o, "emph-font",
+ "serif italic", font_size);
+ xr->fonts[XR_FONT_MARKER].desc = parse_font (d, o, "marker-font", "serif",
+ font_size * PANGO_SCALE_X_SMALL);
+
+ xr->line_gutter = XR_POINT / 2;
xr->line_space = XR_POINT;
xr->line_width = XR_POINT / 2;
- xr->page_number = 1;
+ xr->page_number = 0;
+
+ parse_color (d, o, "background-color", "#FFFFFFFFFFFF", &xr->bg);
+ parse_color (d, o, "foreground-color", "#000000000000", &xr->fg);
+
+ /* 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"));
+
+ min_break[H] = parse_dimension (opt (d, o, "min-hbreak", NULL)) * scale;
+ min_break[V] = parse_dimension (opt (d, o, "min-vbreak", 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;
+}
+
+static struct xr_driver *
+xr_allocate (const char *name, int device_type, struct string_map *o)
+{
+ struct xr_driver *xr = xzalloc (sizeof *xr);
+ struct output_driver *d = &xr->driver;
+
+ output_driver_init (d, &cairo_driver_class, name, device_type);
+
+ 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 bool
xr_set_cairo (struct xr_driver *xr, cairo_t *cairo)
{
cairo_set_line_width (xr->cairo, xr_to_pt (xr->line_width));
+ xr->char_width = 0;
+ xr->char_height = 0;
for (i = 0; i < XR_N_FONTS; i++)
- if (!load_font (xr, &xr->fonts[i]))
- return false;
+ {
+ struct xr_font *font = &xr->fonts[i];
+ int char_width, char_height;
+
+ font->layout = pango_cairo_create_layout (cairo);
+ pango_layout_set_font_description (font->layout, font->desc);
+
+ pango_layout_set_text (font->layout, "0", 1);
+ pango_layout_get_size (font->layout, &char_width, &char_height);
+ xr->char_width = MAX (xr->char_width, pango_to_xr (char_width));
+ xr->char_height = MAX (xr->char_height, pango_to_xr (char_height));
+ }
+ xr->cell_margin = xr->char_width;
if (xr->params == NULL)
{
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->font_height / 2; /* XXX */
- xr->params->font_size[V] = xr->font_height;
+ xr->params->font_size[H] = xr->char_width;
+ xr->params->font_size[V] = xr->char_height;
single_width = 2 * xr->line_gutter + xr->line_width;
double_width = 2 * xr->line_gutter + xr->line_space + 2 * xr->line_width;
xr->params->line_widths[i][RENDER_LINE_SINGLE] = single_width;
xr->params->line_widths[i][RENDER_LINE_DOUBLE] = double_width;
}
+
+ for (i = 0; i < TABLE_N_AXES; i++)
+ xr->params->min_break[i] = xr->min_break[i];
}
+ cairo_set_source_rgb (xr->cairo, xr->fg.red, xr->fg.green, xr->fg.blue);
+
return true;
}
static struct output_driver *
-xr_create (const char *name, enum output_device_type device_type,
- struct string_map *o)
+xr_create (const char *file_name, enum settings_output_devices device_type,
+ struct string_map *o, enum xr_output_type file_type)
{
enum { MIN_WIDTH = 3, MIN_LENGTH = 3 };
- struct output_driver *d;
struct xr_driver *xr;
cairo_surface_t *surface;
cairo_status_t status;
double width_pt, length_pt;
- int paper_width, paper_length;
- char *file_name;
- xr = xr_allocate (name, device_type, o);
- d = &xr->driver;
+ xr = xr_allocate (file_name, device_type, o);
- xr->headers = parse_boolean (opt (d, o, "headers", "true"));
-
- xr->file_type = parse_enum (opt (d, o, "output-type", "pdf"),
- "pdf", XR_PDF,
- "ps", XR_PS,
- "svg", XR_SVG,
- (char *) NULL);
- file_name = parse_string (opt (d, o, "output-file",
- (xr->file_type == XR_PDF ? "pspp.pdf"
- : xr->file_type == XR_PS ? "pspp.ps"
- : "pspp.svg")));
-
- parse_paper_size (opt (d, o, "paper-size", ""), &paper_width, &paper_length);
- xr->left_margin = parse_dimension (opt (d, o, "left-margin", ".5in"));
- xr->right_margin = parse_dimension (opt (d, o, "right-margin", ".5in"));
- xr->top_margin = parse_dimension (opt (d, o, "top-margin", ".5in"));
- xr->bottom_margin = parse_dimension (opt (d, o, "bottom-margin", ".5in"));
-
- if (xr->headers)
- xr->top_margin += 3 * xr->font_height;
- xr->width = paper_width - xr->left_margin - xr->right_margin;
- xr->length = paper_length - xr->top_margin - xr->bottom_margin;
-
- width_pt = paper_width / 1000.0;
- length_pt = paper_length / 1000.0;
- if (xr->file_type == XR_PDF)
+ width_pt = xr_to_pt (xr->width + xr->left_margin + xr->right_margin);
+ length_pt = xr_to_pt (xr->length + xr->top_margin + xr->bottom_margin);
+ if (file_type == XR_PDF)
surface = cairo_pdf_surface_create (file_name, width_pt, length_pt);
- else if (xr->file_type == XR_PS)
+ else if (file_type == XR_PS)
surface = cairo_ps_surface_create (file_name, width_pt, length_pt);
- else if (xr->file_type == XR_SVG)
+ else if (file_type == XR_SVG)
surface = cairo_svg_surface_create (file_name, width_pt, length_pt);
else
NOT_REACHED ();
status = cairo_surface_status (surface);
if (status != CAIRO_STATUS_SUCCESS)
{
- error (0, 0, _("opening output file \"%s\": %s"),
+ msg (ME, _("error opening output file `%s': %s"),
file_name, cairo_status_to_string (status));
cairo_surface_destroy (surface);
goto error;
xr->cairo = cairo_create (surface);
cairo_surface_destroy (surface);
- cairo_translate (xr->cairo,
- xr_to_pt (xr->left_margin),
- xr_to_pt (xr->top_margin));
-
if (!xr_set_cairo (xr, xr->cairo))
goto error;
- if (xr->width / (xr->font_height / 2) < MIN_WIDTH)
+ cairo_save (xr->cairo);
+ xr_driver_next_page (xr, xr->cairo);
+
+ if (xr->width / xr->char_width < MIN_WIDTH)
{
- error (0, 0, _("The defined page is not wide enough to hold at least %d "
+ 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,
- xr->width / (xr->font_height / 2));
+ xr->width / xr->char_width);
goto error;
}
- if (xr->length / xr->font_height < MIN_LENGTH)
+ if (xr->length / xr->char_height < MIN_LENGTH)
{
- error (0, 0, _("The defined page is not long "
- "enough to hold margins and headers, plus least %d "
- "lines of the default fonts. In fact, there's only "
+ 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,
- xr->length / xr->font_height);
+ xr->length / xr->char_height);
goto error;
}
- free (file_name);
return &xr->driver;
error:
return NULL;
}
+static struct output_driver *
+xr_pdf_create (struct file_handle *fh, enum settings_output_devices device_type,
+ struct string_map *o)
+{
+ struct output_driver *od = xr_create (fh_get_file_name (fh), device_type, o, XR_PDF);
+ fh_unref (fh);
+ return od ;
+}
+
+static struct output_driver *
+xr_ps_create (struct file_handle *fh, enum settings_output_devices device_type,
+ struct string_map *o)
+{
+ struct output_driver *od = xr_create (fh_get_file_name (fh), device_type, o, XR_PS);
+ fh_unref (fh);
+ return od ;
+}
+
+static struct output_driver *
+xr_svg_create (struct file_handle *fh, enum settings_output_devices device_type,
+ struct string_map *o)
+{
+ struct output_driver *od = xr_create (fh_get_file_name (fh), device_type, o, XR_SVG);
+ fh_unref (fh);
+ return od ;
+}
+
static void
xr_destroy (struct output_driver *driver)
{
struct xr_driver *xr = xr_driver_cast (driver);
size_t i;
+ xr_driver_destroy_fsm (xr);
+
if (xr->cairo != NULL)
{
cairo_status_t status;
- if (xr->y > 0)
- xr_show_page (xr);
-
cairo_surface_finish (cairo_get_target (xr->cairo));
status = cairo_status (xr->cairo);
if (status != CAIRO_STATUS_SUCCESS)
- error (0, 0, _("error drawing output for %s driver: %s"),
+ msg (ME, _("error drawing output for %s driver: %s"),
output_driver_get_name (driver),
cairo_status_to_string (status));
cairo_destroy (xr->cairo);
}
+ free (xr->command_name);
for (i = 0; i < XR_N_FONTS; i++)
- free_font (&xr->fonts[i]);
+ {
+ struct xr_font *font = &xr->fonts[i];
+
+ if (font->desc != NULL)
+ pango_font_description_free (font->desc);
+ if (font->layout != NULL)
+ g_object_unref (font->layout);
+ }
+
free (xr->params);
free (xr);
}
}
static void
-xr_init_caption_cell (const char *caption, struct table_cell *cell)
+xr_submit (struct output_driver *driver, const struct output_item *output_item)
{
- cell->contents = caption;
- cell->options = TAB_LEFT;
- cell->destructor = NULL;
-}
+ struct xr_driver *xr = xr_driver_cast (driver);
-static struct render_page *
-xr_render_table_item (struct xr_driver *xr, const struct table_item *item,
- int *caption_heightp)
-{
- const char *caption = table_item_get_caption (item);
+ output_driver_track_current_command (output_item, &xr->command_name);
- if (caption != NULL)
+ xr_driver_output_item (xr, output_item);
+ while (xr_driver_need_new_page (xr))
{
- /* XXX doesn't do well with very large captions */
- struct table_cell cell;
- xr_init_caption_cell (caption, &cell);
- *caption_heightp = xr_measure_cell_height (xr, &cell, xr->width);
+ cairo_restore (xr->cairo);
+ cairo_show_page (xr->cairo);
+ cairo_save (xr->cairo);
+ xr_driver_next_page (xr, xr->cairo);
}
- else
- *caption_heightp = 0;
-
- return render_page_create (xr->params, table_item_get_table (item));
}
+\f
+/* Functions for rendering a series of output items to a series of Cairo
+ contexts, with pagination.
-static void
-xr_submit (struct output_driver *driver, const struct output_item *output_item)
+ Used by PSPPIRE for printing, and by the basic Cairo output driver above as
+ its underlying implementation.
+
+ See the big comment in cairo.h for intended usage. */
+
+/* Gives new page CAIRO to XR for output. */
+void
+xr_driver_next_page (struct xr_driver *xr, cairo_t *cairo)
{
- struct xr_driver *xr = xr_driver_cast (driver);
- if (is_table_item (output_item))
- {
- struct table_item *table_item = to_table_item (output_item);
- struct render_break x_break;
- struct render_page *page;
- int caption_height;
+ cairo_save (cairo);
+ cairo_set_source_rgb (cairo, xr->bg.red, xr->bg.green, xr->bg.blue);
+ cairo_rectangle (cairo, 0, 0, xr->width, xr->length);
+ cairo_fill (cairo);
+ cairo_restore (cairo);
- if (xr->y > 0)
- xr->y += xr->font_height;
+ cairo_translate (cairo,
+ xr_to_pt (xr->left_margin),
+ xr_to_pt (xr->top_margin));
- page = xr_render_table_item (xr, table_item, &caption_height);
- xr->params->size[V] = xr->length - caption_height;
- for (render_break_init (&x_break, page, H);
- render_break_has_next (&x_break); )
- {
- struct render_page *x_slice;
- struct render_break y_break;
+ xr->page_number++;
+ xr->cairo = cairo;
+ xr->x = xr->y = 0;
+ xr_driver_run_fsm (xr);
+}
- x_slice = render_break_next (&x_break, xr->width);
- for (render_break_init (&y_break, x_slice, V);
- render_break_has_next (&y_break); )
- {
- int space = xr->length - xr->y;
- struct render_page *y_slice;
-
- /* XXX doesn't allow for caption or space between segments */
- if (render_break_next_size (&y_break) > space)
- {
- assert (xr->y > 0);
- xr_show_page (xr);
- continue;
- }
-
- y_slice = render_break_next (&y_break, space);
- if (caption_height)
- {
- struct table_cell cell;
- int bb[TABLE_N_AXES][2];
-
- xr_init_caption_cell (table_item_get_caption (table_item),
- &cell);
- bb[H][0] = 0;
- bb[H][1] = xr->width;
- bb[V][0] = 0;
- bb[V][1] = caption_height;
- xr_draw_cell (xr, &cell, bb, bb);
- xr->y += caption_height;
- caption_height = 0;
- }
-
- render_page_draw (y_slice);
- xr->y += render_page_get_size (y_slice, V);
- render_page_unref (y_slice);
- }
- render_break_destroy (&y_break);
- }
- render_break_destroy (&x_break);
- }
- else if (is_chart_item (output_item))
- {
- if (xr->y > 0)
- xr_show_page (xr);
- xr_draw_chart (to_chart_item (output_item), xr->cairo, 0.0, 0.0,
- xr_to_pt (xr->width), xr_to_pt (xr->length));
- xr_show_page (xr);
- }
- else if (is_text_item (output_item))
- {
- const struct text_item *text_item = to_text_item (output_item);
- enum text_item_type type = text_item_get_type (text_item);
- const char *text = text_item_get_text (text_item);
+/* 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)
+{
+ assert (xr->fsm == NULL);
+ xr->fsm = xr_render_output_item (xr, output_item);
+ xr_driver_run_fsm (xr);
+}
- switch (type)
- {
- case TEXT_ITEM_TITLE:
- free (xr->title);
- xr->title = xstrdup (text);
- break;
-
- case TEXT_ITEM_SUBTITLE:
- free (xr->subtitle);
- xr->subtitle = xstrdup (text);
- break;
-
- case TEXT_ITEM_COMMAND_CLOSE:
- break;
-
- case TEXT_ITEM_BLANK_LINE:
- if (xr->y > 0)
- xr->y += xr->font_height;
- break;
-
- case TEXT_ITEM_EJECT_PAGE:
- if (xr->y > 0)
- xr_show_page (xr);
- break;
-
- default:
- {
- struct table_item *item;
-
- item = table_item_create (table_from_string (TAB_LEFT, text),
- NULL);
- xr_submit (&xr->driver, &item->output_item);
- table_item_unref (item);
- }
- break;
- }
+/* 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;
+}
- }
+/* 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;
}
static void
-xr_show_page (struct xr_driver *xr)
+xr_driver_destroy_fsm (struct xr_driver *xr)
{
- if (xr->headers)
+ if (xr->fsm != NULL)
{
- xr->y = 0;
- draw_headers (xr);
+ xr->fsm->destroy (xr->fsm);
+ xr->fsm = NULL;
}
- cairo_show_page (xr->cairo);
+}
- xr->page_number++;
- xr->y = 0;
+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);
}
\f
static void
-xr_layout_cell (struct xr_driver *, const struct table_cell *,
+xr_layout_cell (struct xr_driver *, const struct table_cell *, int footnote_idx,
int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
- PangoWrapMode, int *width, int *height);
+ int *width, int *height, int *brk);
static void
dump_line (struct xr_driver *xr, int x0, int y0, int x1, int y1)
{
cairo_new_path (xr->cairo);
- cairo_move_to (xr->cairo, xr_to_pt (x0), xr_to_pt (y0 + xr->y));
- cairo_line_to (xr->cairo, xr_to_pt (x1), xr_to_pt (y1 + xr->y));
+ 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);
+}
+
+static void UNUSED
+dump_rectangle (struct xr_driver *xr, int x0, int y0, int x1, int y1)
+{
+ cairo_new_path (xr->cairo);
+ 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);
}
const int x3 = bb[H][1];
const int y3 = bb[V][1];
const int top = styles[H][0];
- const int left = styles[V][0];
const int bottom = styles[H][1];
- const int right = styles[V][1];
+ const int start_of_line = render_direction_rtl() ? styles[V][1]: styles[V][0];
+ const int end_of_line = render_direction_rtl() ? styles[V][0]: styles[V][1];
/* The algorithm here is somewhat subtle, to allow it to handle
all the kinds of intersections that we need.
(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 = left == RENDER_LINE_DOUBLE || right == 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,
int x1 = xc - horz_line_ofs;
int x2 = xc + horz_line_ofs;
- bool shorten_x1_lines = left == RENDER_LINE_DOUBLE;
- bool shorten_x2_lines = right == RENDER_LINE_DOUBLE;
+ 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 y2 = yc + vert_line_ofs;
if (!double_horz)
- horz_line (xr, x0, x1, x2, x3, yc, left, right, shorten_yc_line);
+ horz_line (xr, x0, x1, x2, x3, yc, start_of_line, end_of_line, shorten_yc_line);
else
{
- horz_line (xr, x0, x1, x2, x3, y1, left, right, shorten_y1_lines);
- horz_line (xr, x0, x1, x2, x3, y2, left, right, shorten_y2_lines);
+ horz_line (xr, x0, x1, x2, x3, y1, start_of_line, end_of_line, shorten_y1_lines);
+ horz_line (xr, x0, x1, x2, x3, y2, start_of_line, end_of_line, shorten_y2_lines);
}
if (!double_vert)
static void
xr_measure_cell_width (void *xr_, const struct table_cell *cell,
- int *min_width, int *max_width)
+ int footnote_idx, int *min_width, int *max_width)
{
struct xr_driver *xr = xr_;
int bb[TABLE_N_AXES][2];
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, PANGO_WRAP_WORD, max_width, &h);
+ xr_layout_cell (xr, cell, footnote_idx, bb, clip, max_width, &h, NULL);
bb[H][1] = 1;
- xr_layout_cell (xr, cell, bb, clip, PANGO_WRAP_WORD, min_width, &h);
+ xr_layout_cell (xr, cell, footnote_idx, bb, clip, min_width, &h, NULL);
+
+ if (*min_width > 0)
+ *min_width += xr->cell_margin * 2;
+ if (*max_width > 0)
+ *max_width += xr->cell_margin * 2;
}
static int
-xr_measure_cell_height (void *xr_, const struct table_cell *cell, int width)
+xr_measure_cell_height (void *xr_, const struct table_cell *cell,
+ int footnote_idx, int width)
{
struct xr_driver *xr = xr_;
int bb[TABLE_N_AXES][2];
int w, h;
bb[H][0] = 0;
- bb[H][1] = width;
+ bb[H][1] = width - xr->cell_margin * 2;
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, PANGO_WRAP_WORD, &w, &h);
+ xr_layout_cell (xr, cell, footnote_idx, bb, clip, &w, &h, NULL);
return h;
}
static void
-xr_draw_cell (void *xr_, const struct table_cell *cell,
+xr_draw_cell (void *xr_, const struct table_cell *cell, int footnote_idx,
int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2])
{
struct xr_driver *xr = xr_;
- int w, h;
+ int w, h, brk;
- xr_layout_cell (xr, cell, bb, clip, PANGO_WRAP_WORD, &w, &h);
+ bb[H][0] += xr->cell_margin;
+ bb[H][1] -= xr->cell_margin;
+ if (bb[H][0] >= bb[H][1])
+ return;
+ xr_layout_cell (xr, cell, footnote_idx, bb, clip, &w, &h, &brk);
}
-\f
-/* Writes STRING at location (X,Y) trimmed to the given MAX_WIDTH
- and with the given cell OPTIONS for XR. */
+
static int
-draw_text (struct xr_driver *xr, const char *string, int x, int y,
- int max_width, unsigned int options)
+xr_adjust_break (void *xr_, const struct table_cell *cell, int footnote_idx,
+ int width, int height)
{
- struct table_cell cell;
+ struct xr_driver *xr = xr_;
int bb[TABLE_N_AXES][2];
- int w, h;
+ int clip[TABLE_N_AXES][2];
+ int w, h, brk;
- cell.contents = string;
- cell.options = options;
- bb[H][0] = x;
- bb[V][0] = y;
- bb[H][1] = x + max_width;
- bb[V][1] = xr->font_height;
- xr_layout_cell (xr, &cell, bb, bb, PANGO_WRAP_WORD_CHAR, &w, &h);
- return w;
-}
+ if (xr_measure_cell_height (xr_, cell, footnote_idx, width) < height)
+ return -1;
-/* Writes LEFT left-justified and RIGHT right-justified within
- (X0...X1) at Y. LEFT or RIGHT or both may be null. */
+ bb[H][0] = 0;
+ bb[H][1] = width - 2 * xr->cell_margin;
+ if (bb[H][1] <= 0)
+ return 0;
+ bb[V][0] = 0;
+ bb[V][1] = height;
+ clip[H][0] = clip[H][1] = clip[V][0] = clip[V][1] = 0;
+ xr_layout_cell (xr, cell, footnote_idx, bb, clip, &w, &h, &brk);
+ return brk;
+}
+\f
static void
-draw_header_line (struct xr_driver *xr, const char *left, const char *right,
- int x0, int x1, int y)
+xr_clip (struct xr_driver *xr, int clip[TABLE_N_AXES][2])
{
- int right_width = 0;
- if (right != NULL)
- right_width = (draw_text (xr, right, x0, y, x1 - x0, TAB_RIGHT)
- + xr->font_height / 2);
- if (left != NULL)
- draw_text (xr, left, x0, y, x1 - x0 - right_width, TAB_LEFT);
+ 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);
+ }
}
-/* Draw top of page headers for XR. */
static void
-draw_headers (struct xr_driver *xr)
+add_attr_with_start (PangoAttrList *list, PangoAttribute *attr, guint start_index)
{
- char *r1, *r2;
- int x0, x1;
- int y;
-
- y = -3 * xr->font_height;
- x0 = xr->font_height / 2;
- x1 = xr->width - xr->font_height / 2;
-
- /* Draw box. */
- cairo_rectangle (xr->cairo, 0, xr_to_pt (y), xr_to_pt (xr->width),
- xr_to_pt (2 * (xr->font_height
- + xr->line_width + xr->line_gutter)));
- cairo_save (xr->cairo);
- cairo_set_source_rgb (xr->cairo, 0.9, 0.9, 0.9);
- cairo_fill_preserve (xr->cairo);
- cairo_restore (xr->cairo);
- cairo_stroke (xr->cairo);
+ attr->start_index = start_index;
+ pango_attr_list_insert (list, attr);
+}
- y += xr->line_width + xr->line_gutter;
+static int
+xr_layout_cell_text (struct xr_driver *xr,
+ const struct cell_contents *contents, int footnote_idx,
+ int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
+ int y, int *widthp, int *brk)
+{
+ unsigned int options = contents->options;
+ struct xr_font *font;
+ bool merge_footnotes;
+ size_t length;
+ int w, h;
- r1 = xasprintf (_("%s - Page %d"), get_start_date (), xr->page_number);
- r2 = xasprintf ("%s - %s", version, host_system);
+ if (contents->n_footnotes == 0)
+ merge_footnotes = false;
+ else if (contents->n_footnotes == 1 && (options & TAB_ALIGNMENT) == TAB_RIGHT)
+ {
+ PangoAttrList *attrs;
+ char marker[16];
- draw_header_line (xr, xr->title, r1, x0, x1, y);
- y += xr->font_height;
+ font = &xr->fonts[XR_FONT_MARKER];
- draw_header_line (xr, xr->subtitle, r2, x0, x1, y);
+ str_format_26adic (footnote_idx + 1, false, marker, sizeof marker);
+ pango_layout_set_text (font->layout, marker, strlen (marker));
- free (r1);
- free (r2);
-}
-\f
-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],
- PangoWrapMode wrap, int *width, int *height)
-{
- struct xr_font *font;
+ attrs = pango_attr_list_new ();
+ pango_attr_list_insert (attrs, pango_attr_rise_new (7000));
+ pango_layout_set_attributes (font->layout, attrs);
+ pango_attr_list_unref (attrs);
+
+ pango_layout_get_size (font->layout, &w, &h);
+ merge_footnotes = w > xr->cell_margin;
+ if (!merge_footnotes && clip[H][0] != clip[H][1])
+ {
+ cairo_save (xr->cairo);
+ xr_clip (xr, clip);
+ cairo_translate (xr->cairo,
+ xr_to_pt (bb[H][1] + xr->x),
+ xr_to_pt (y + xr->y));
+ pango_layout_set_alignment (font->layout, PANGO_ALIGN_LEFT);
+ pango_layout_set_width (font->layout, -1);
+ pango_cairo_show_layout (xr->cairo, font->layout);
+ cairo_restore (xr->cairo);
+ }
- font = (cell->options & TAB_FIX ? &xr->fonts[XR_FONT_FIXED]
- : cell->options & TAB_EMPH ? &xr->fonts[XR_FONT_EMPHASIS]
+ pango_layout_set_attributes (font->layout, NULL);
+ }
+ else
+ merge_footnotes = true;
+
+ font = (options & TAB_FIX ? &xr->fonts[XR_FONT_FIXED]
+ : options & TAB_EMPH ? &xr->fonts[XR_FONT_EMPHASIS]
: &xr->fonts[XR_FONT_PROPORTIONAL]);
- pango_layout_set_text (font->layout, cell->contents, -1);
+ length = strlen (contents->text);
+ if (merge_footnotes)
+ {
+ PangoAttrList *attrs;
+ struct string s;
+ size_t i;
+
+ bb[H][1] += xr->cell_margin;
+
+ ds_init_empty (&s);
+ ds_extend (&s, length + contents->n_footnotes * 10);
+ ds_put_cstr (&s, contents->text);
+ for (i = 0; i < contents->n_footnotes; i++)
+ {
+ char marker[16];
+
+ if (i > 0)
+ ds_put_byte (&s, ',');
+ str_format_26adic (footnote_idx + i + 1, false, marker, sizeof marker);
+ ds_put_cstr (&s, marker);
+ }
+ pango_layout_set_text (font->layout, ds_cstr (&s), ds_length (&s));
+ ds_destroy (&s);
+
+ attrs = pango_attr_list_new ();
+ add_attr_with_start (attrs, pango_attr_rise_new (7000), length);
+ add_attr_with_start (
+ attrs, pango_attr_font_desc_new (xr->fonts[XR_FONT_MARKER].desc), length);
+ pango_layout_set_attributes (font->layout, attrs);
+ pango_attr_list_unref (attrs);
+ }
+ else
+ pango_layout_set_text (font->layout, contents->text, -1);
pango_layout_set_alignment (
font->layout,
- ((cell->options & TAB_ALIGNMENT) == TAB_RIGHT ? PANGO_ALIGN_RIGHT
- : (cell->options & TAB_ALIGNMENT) == TAB_LEFT ? PANGO_ALIGN_LEFT
+ ((options & TAB_ALIGNMENT) == TAB_RIGHT ? PANGO_ALIGN_RIGHT
+ : (options & TAB_ALIGNMENT) == TAB_LEFT ? PANGO_ALIGN_LEFT
: PANGO_ALIGN_CENTER));
- pango_layout_set_width (font->layout,
- bb[H][1] == INT_MAX ? -1 : bb[H][1] - bb[H][0]);
- pango_layout_set_wrap (font->layout, wrap);
+ pango_layout_set_width (
+ font->layout,
+ bb[H][1] == INT_MAX ? -1 : xr_to_pango (bb[H][1] - bb[H][0]));
+ pango_layout_set_wrap (font->layout, PANGO_WRAP_WORD);
if (clip[H][0] != clip[H][1])
{
cairo_save (xr->cairo);
+ xr_clip (xr, clip);
+ cairo_translate (xr->cairo,
+ xr_to_pt (bb[H][0] + xr->x),
+ xr_to_pt (y + xr->y));
+ pango_cairo_show_layout (xr->cairo, font->layout);
- if (clip[H][1] != INT_MAX || clip[V][1] != INT_MAX)
+ /* 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)
{
- double x0 = xr_to_pt (clip[H][0]);
- double y0 = xr_to_pt (clip[V][0] + xr->y);
- double x1 = xr_to_pt (clip[H][1]);
- double y1 = xr_to_pt (clip[V][1] + xr->y);
-
- cairo_rectangle (xr->cairo, x0, y0, x1 - x0, y1 - y0);
- cairo_clip (xr->cairo);
+ 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_translate (xr->cairo,
- xr_to_pt (bb[H][0]),
- xr_to_pt (bb[V][0] + xr->y));
- pango_cairo_show_layout (xr->cairo, font->layout);
cairo_restore (xr->cairo);
}
- if (width != NULL || height != NULL)
+ pango_layout_get_size (font->layout, &w, &h);
+ w = pango_to_xr (w);
+ h = pango_to_xr (h);
+ if (w > *widthp)
+ *widthp = w;
+ if (y + h >= bb[V][1])
{
- int w, h;
+ PangoLayoutIter *iter;
+ int best UNUSED = 0;
- pango_layout_get_size (font->layout, &w, &h);
- if (width != NULL)
- *width = w;
- if (height != NULL)
- *height = h;
+ /* 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 = y + 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 && !xr->nest)
+ {
+ cairo_save (xr->cairo);
+ cairo_set_source_rgb (xr->cairo, 0, 1, 0);
+ dump_line (xr, -xr->left_margin, best, xr->width + xr->right_margin, best);
+ cairo_restore (xr->cairo);
+ }
+ }
}
+
+ pango_layout_set_attributes (font->layout, NULL);
+ return y + h;
}
-\f
-/* Attempts to load FONT, initializing its other members based on
- its 'string' member and the information in DRIVER. Returns true
- if successful, otherwise false. */
-static bool
-load_font (struct xr_driver *xr, struct xr_font *font)
+
+static int
+xr_layout_cell_subtable (struct xr_driver *xr,
+ const struct cell_contents *contents,
+ int footnote_idx UNUSED,
+ int bb[TABLE_N_AXES][2],
+ int clip[TABLE_N_AXES][2], int *widthp, int *brk)
{
- PangoContext *context;
- PangoLanguage *language;
+ int single_width, double_width;
+ struct render_params params;
+ struct render_pager *p;
+ int r[TABLE_N_AXES][2];
+ int width, height;
+ int i;
- font->desc = pango_font_description_from_string (font->string);
- if (font->desc == NULL)
+ params.draw_line = xr_draw_line;
+ params.measure_cell_width = xr_measure_cell_width;
+ params.measure_cell_height = xr_measure_cell_height;
+ params.adjust_break = NULL;
+ params.draw_cell = xr_draw_cell;
+ params.aux = xr;
+ params.size[H] = bb[H][1] - bb[H][0];
+ params.size[V] = bb[V][1] - bb[V][0];
+ params.font_size[H] = xr->char_width;
+ params.font_size[V] = xr->char_height;
+
+ single_width = 2 * xr->line_gutter + xr->line_width;
+ double_width = 2 * xr->line_gutter + xr->line_space + 2 * xr->line_width;
+ for (i = 0; i < TABLE_N_AXES; i++)
{
- error (0, 0, _("\"%s\": bad font specification"), font->string);
- return false;
+ params.line_widths[i][RENDER_LINE_NONE] = 0;
+ params.line_widths[i][RENDER_LINE_SINGLE] = single_width;
+ params.line_widths[i][RENDER_LINE_DOUBLE] = double_width;
}
- pango_font_description_set_absolute_size (font->desc, xr->font_height);
- font->layout = pango_cairo_create_layout (xr->cairo);
- pango_layout_set_font_description (font->layout, font->desc);
+ xr->nest++;
+ p = render_pager_create (¶ms, contents->table);
+ width = render_pager_get_size (p, H);
+ height = render_pager_get_size (p, V);
+ if (bb[V][0] + height >= bb[V][1])
+ *brk = bb[V][0] + render_pager_get_best_breakpoint (p, bb[V][1] - bb[V][0]);
+
+ /* r = intersect(bb, clip) - bb. */
+ for (i = 0; i < TABLE_N_AXES; i++)
+ {
+ r[i][0] = MAX (bb[i][0], clip[i][0]) - bb[i][0];
+ r[i][1] = MIN (bb[i][1], clip[i][1]) - bb[i][0];
+ }
- language = pango_language_get_default ();
- context = pango_layout_get_context (font->layout);
- font->metrics = pango_context_get_metrics (context, font->desc, language);
+ if (r[H][0] < r[H][1] && r[V][0] < r[V][1])
+ {
+ unsigned int alignment = contents->options & TAB_ALIGNMENT;
+ int save_x = xr->x;
- return true;
+ cairo_save (xr->cairo);
+ xr_clip (xr, clip);
+ xr->x += bb[H][0];
+ if (alignment == TAB_RIGHT)
+ xr->x += params.size[H] - width;
+ else if (alignment == TAB_CENTER)
+ xr->x += (params.size[H] - width) / 2;
+ xr->y += bb[V][0];
+ render_pager_draw_region (p, r[H][0], r[V][0],
+ r[H][1] - r[H][0], r[V][1] - r[V][0]);
+ xr->y -= bb[V][0];
+ xr->x = save_x;
+ cairo_restore (xr->cairo);
+ }
+ render_pager_destroy (p);
+ xr->nest--;
+
+ if (width > *widthp)
+ *widthp = width;
+ return bb[V][0] + height;
}
-/* Frees FONT. */
static void
-free_font (struct xr_font *font)
+xr_layout_cell (struct xr_driver *xr, const struct table_cell *cell,
+ int footnote_idx,
+ int bb_[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
+ int *width, int *height, int *brk)
{
- free (font->string);
- if (font->desc != NULL)
- pango_font_description_free (font->desc);
- pango_font_metrics_unref (font->metrics);
- if (font->layout != NULL)
- g_object_unref (font->layout);
-}
+ int bb[TABLE_N_AXES][2];
+ size_t i;
+
+ *width = 0;
+ *height = 0;
+ if (brk)
+ *brk = 0;
+
+ memcpy (bb, bb_, sizeof bb);
+
+ /* 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])
+ {
+ int offset = (xr->nest) * XR_POINT;
+
+ cairo_save (xr->cairo);
+ cairo_set_source_rgb (xr->cairo, 0, 0, 1);
+ dump_rectangle (xr,
+ bb[H][0] + offset, bb[V][0] + offset,
+ bb[H][1] - offset, bb[V][1] - offset);
+ cairo_restore (xr->cairo);
+ }
+ }
+
+ for (i = 0; i < cell->n_contents && bb[V][0] < bb[V][1]; i++)
+ {
+ const struct cell_contents *contents = &cell->contents[i];
+
+ if (brk)
+ *brk = bb[V][0];
+ if (i > 0)
+ {
+ bb[V][0] += xr->char_height / 2;
+ if (bb[V][0] >= bb[V][1])
+ break;
+ if (brk)
+ *brk = bb[V][0];
+ }
-/* Cairo driver class. */
-const struct output_driver_class cairo_class =
+ if (contents->text)
+ bb[V][0] = xr_layout_cell_text (xr, contents, footnote_idx, bb, clip,
+ bb[V][0], width, brk);
+ else
+ bb[V][0] = xr_layout_cell_subtable (xr, contents, footnote_idx,
+ bb, clip, width, brk);
+ footnote_idx += contents->n_footnotes;
+ }
+ *height = bb[V][0] - bb_[V][0];
+}
+\f
+struct output_driver_factory pdf_driver_factory =
+ { "pdf", "pspp.pdf", xr_pdf_create };
+struct output_driver_factory ps_driver_factory =
+ { "ps", "pspp.ps", xr_ps_create };
+struct output_driver_factory svg_driver_factory =
+ { "svg", "pspp.svg", xr_svg_create };
+
+static const struct output_driver_class cairo_driver_class =
{
"cairo",
- xr_create,
xr_destroy,
xr_submit,
xr_flush,
struct xr_rendering
{
+ struct output_item *item;
+
/* Table items. */
- struct render_page *page;
+ struct render_pager *p;
struct xr_driver *xr;
- int title_height;
-
- /* Chart items. */
- struct chart_item *chart;
};
#define CHART_WIDTH 500
#define CHART_HEIGHT 375
-struct xr_driver *
-xr_create_driver (cairo_t *cairo)
-{
- struct xr_driver *xr;
- struct string_map map;
- string_map_init (&map);
- xr = xr_allocate ("cairo", 0, &map);
- string_map_destroy (&map);
- xr->width = INT_MAX / 8;
- xr->length = INT_MAX / 8;
+struct xr_driver *
+xr_driver_create (cairo_t *cairo, struct string_map *options)
+{
+ struct xr_driver *xr = xr_allocate ("cairo", 0, options);
if (!xr_set_cairo (xr, cairo))
{
output_driver_destroy (&xr->driver);
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 (TAB_LEFT, 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 text_item *text_item = to_text_item (item);
- const char *text = text_item_get_text (text_item);
- struct table_item *table_item;
-
- table_item = table_item_create (table_from_string (TAB_LEFT, text),
- NULL);
- r = xr_rendering_create (xr, &table_item->output_item, cr);
- table_item_unref (table_item);
+ const struct message_item *message_item = to_message_item (item);
+ const struct msg *msg = message_item_get_msg (message_item);
+ char *s = msg_to_string (msg, NULL);
+ 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->page = xr_render_table_item (xr, to_table_item (item),
- &r->title_height);
+ r->p = render_pager_create (xr->params, to_table_item (item));
}
else if (is_chart_item (item))
{
r = xzalloc (sizeof *r);
- r->chart = to_chart_item (output_item_ref (item));
+ r->item = output_item_ref (item);
}
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 (struct xr_rendering *r, int *w, int *h)
{
- if (r->chart == NULL)
+ if (is_table_item (r->item))
{
- *w = render_page_get_size (r->page, H) / 1024;
- *h = (render_page_get_size (r->page, V) + r->title_height) / 1024;
+ *w = render_pager_get_size (r->p, H) / XR_POINT;
+ *h = render_pager_get_size (r->p, V) / XR_POINT;
}
else
{
}
}
+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)
+xr_rendering_draw_all (struct xr_rendering *r, cairo_t *cr)
{
- if (r->chart == NULL)
+ if (is_table_item (r->item))
{
struct xr_driver *xr = r->xr;
xr_set_cairo (xr, cr);
- xr->y = 0;
- render_page_draw (r->page);
+
+ render_pager_draw (r->p);
+
}
else
- xr_draw_chart (r->chart, cr, 0, 0, CHART_WIDTH, CHART_HEIGHT);
+ xr_draw_chart (to_chart_item (r->item), cr,
+ 0, 0, CHART_WIDTH, CHART_HEIGHT);
}
-void
+static void
xr_draw_chart (const struct chart_item *chart_item, cairo_t *cr,
double x, double y, double width, double height)
{
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);
char *
xr_draw_png_chart (const struct chart_item *item,
- const char *file_name_template, int number)
+ const char *file_name_template, int number,
+ const struct xr_color *fg,
+ const struct xr_color *bg
+ )
{
const int width = 640;
const int length = 480;
surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, length);
cr = cairo_create (surface);
- cairo_save (cr);
- cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
- cairo_rectangle (cr, 0, 0, width, length);
- cairo_fill (cr);
- cairo_restore (cr);
+ cairo_set_source_rgb (cr, bg->red, bg->green, bg->blue);
+ cairo_paint (cr);
- cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
+ cairo_set_source_rgb (cr, fg->red, fg->green, fg->blue);
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)
- error (0, 0, _("writing output file \"%s\": %s"),
+ msg (ME, _("error writing output file `%s': %s"),
file_name, cairo_status_to_string (status));
cairo_destroy (cr);
return file_name;
}
+\f
+struct xr_table_state
+ {
+ struct xr_render_fsm fsm;
+ struct table_item *table_item;
+ 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);
+
+ table_item_unref (ts->table_item);
+ render_pager_destroy (ts->p);
+ free (ts);
+}
+
+static struct xr_render_fsm *
+xr_render_table (struct xr_driver *xr, const 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;
+ ts->table_item = table_item_ref (table_item);
+
+ if (xr->y > 0)
+ xr->y += xr->char_height;
+
+ ts->p = render_pager_create (xr->params, 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 = xr->length;
+
+ 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_create_text_renderer (struct xr_driver *xr, const char *text)
+{
+ struct table_item *table_item;
+ struct xr_render_fsm *fsm;
+
+ table_item = table_item_create (table_from_string (TAB_LEFT, text),
+ NULL, NULL);
+ fsm = xr_render_table (xr, table_item);
+ table_item_unref (table_item);
+
+ return fsm;
+}
+
+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_TITLE:
+ free (xr->title);
+ xr->title = xstrdup (text);
+ break;
+
+ case TEXT_ITEM_SUBTITLE:
+ free (xr->subtitle);
+ xr->subtitle = xstrdup (text);
+ break;
+
+ case TEXT_ITEM_COMMAND_CLOSE:
+ break;
+
+ case TEXT_ITEM_BLANK_LINE:
+ if (xr->y > 0)
+ xr->y += xr->char_height;
+ break;
+
+ case TEXT_ITEM_EJECT_PAGE:
+ if (xr->y > 0)
+ return xr_render_eject ();
+ break;
+
+ default:
+ return xr_create_text_renderer (xr, text);
+ }
+
+ return NULL;
+}
+
+static struct xr_render_fsm *
+xr_render_message (struct xr_driver *xr,
+ const struct message_item *message_item)
+{
+ const struct msg *msg = message_item_get_msg (message_item);
+ struct xr_render_fsm *fsm;
+ char *s;
+
+ s = msg_to_string (msg, xr->command_name);
+ fsm = xr_create_text_renderer (xr, s);
+ free (s);
+
+ return fsm;
+}
+
+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, 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;
+}
projects / pspp / blobdiff