/* PSPP - a program for statistical analysis.
- Copyright (C) 2009, 2010, 2011, 2012, 2013 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 "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/cairo-fsm.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/group-item.h"
#include "output/message-item.h"
#include "output/options.h"
+#include "output/page-eject-item.h"
+#include "output/page-setup-item.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 <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"
#define H TABLE_HORZ
#define V TABLE_VERT
-/* Measurements as we present to the rest of PSPP. */
-#define XR_POINT 1000
+/* The unit used for internal measurements is inch/(72 * XR_POINT).
+ (Thus, XR_POINT units represent one point.) */
+#define XR_POINT PANGO_SCALE
/* Conversions to and from points. */
static double
return x / (double) XR_POINT;
}
+/* 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_SVG
};
-/* Cairo fonts. */
-enum xr_font_type
- {
- XR_FONT_PROPORTIONAL,
- XR_FONT_EMPHASIS,
- XR_FONT_FIXED,
- XR_N_FONTS
- };
-
/* A font for use with Cairo. */
struct xr_font
{
PangoLayout *layout;
};
-/* 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 xr_driver
{
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. */
+ int min_break[TABLE_N_AXES]; /* Min cell size to break across pages. */
+ int object_spacing; /* Space between output objects. */
- struct xr_color bg; /* Background color */
- struct xr_color fg; /* Foreground color */
+ 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;
+ struct xr_fsm_style *style;
+ 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 y;
- struct xr_render_fsm *fsm;
+ struct xr_fsm *fsm;
};
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]);
-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 bb[TABLE_N_AXES][2],
- int clip[TABLE_N_AXES][2]);
-
-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);
}
-/* 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)
+static PangoFontDescription *
+parse_font (const char *font, int default_size, bool bold, bool italic)
{
- int red, green, blue;
- char *string = parse_string (opt (d, options, key, default_value));
+ if (!c_strcasecmp (font, "Monospaced"))
+ font = "Monospace";
- 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;
- }
- }
+ PangoFontDescription *desc = pango_font_description_from_string (font);
+ if (desc == NULL)
+ return NULL;
- free (string);
+ /* 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);
- /* Convert 16 bit ints to float */
- color->red = red / (double) 0xFFFF;
- color->green = green / (double) 0xFFFF;
- color->blue = blue / (double) 0xFFFF;
+ pango_font_description_set_weight (desc, (bold
+ ? PANGO_WEIGHT_BOLD
+ : PANGO_WEIGHT_NORMAL));
+ pango_font_description_set_style (desc, (italic
+ ? PANGO_STYLE_ITALIC
+ : PANGO_STYLE_NORMAL));
+
+ return desc;
}
static PangoFontDescription *
-parse_font (struct output_driver *d, struct string_map *options,
- const char *key, const char *default_value,
- int default_points)
+parse_font_option (struct output_driver *d, struct string_map *options,
+ const char *key, const char *default_value,
+ int default_size, bool bold, bool italic)
{
- 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)
+ char *string = parse_string (opt (d, options, key, default_value));
+ PangoFontDescription *desc = parse_font (string, default_size, bold, italic);
+ if (!desc)
{
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);
+ desc = parse_font (default_value, default_size, bold, italic);
assert (desc != NULL);
}
free (string);
- /* If the font description didn't include an explicit font size, then set it
- to DEFAULT_POINTS. */
- if (!(pango_font_description_get_set_fields (desc) & PANGO_FONT_MASK_SIZE))
- pango_font_description_set_size (desc,
- default_points / 1000.0 * PANGO_SCALE);
-
return desc;
}
-
static void
apply_options (struct xr_driver *xr, struct string_map *o)
{
struct output_driver *d = &xr->driver;
- int paper_width, paper_length, i;
+ /* 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 font_points = parse_int (opt (d, o, "font-size", "10000"), 1000, 1000000);
+ int i;
for (i = 0; i < XR_N_FONTS; i++)
{
pango_font_description_free (font->desc);
}
- xr->fonts[XR_FONT_FIXED].desc = parse_font (d, o, "fixed-font", "monospace",
- font_points);
- xr->fonts[XR_FONT_PROPORTIONAL].desc = parse_font (d, o, "prop-font",
- "serif", font_points);
- xr->fonts[XR_FONT_EMPHASIS].desc = parse_font (d, o, "emph-font",
- "serif italic", font_points);
+ 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->line_gutter = parse_dimension (opt (d, o, "gutter", "3pt"));
- xr->line_space = XR_POINT;
- xr->line_width = XR_POINT / 2;
- xr->page_number = 0;
+ xr->fg = parse_color (opt (d, o, "foreground-color", "#000000000000"));
+ xr->bg = parse_color (opt (d, o, "background-color", "#FFFFFFFFFFFF"));
- parse_color (d, o, "background-color", "#FFFFFFFFFFFF", &xr->bg);
- parse_color (d, o, "foreground-color", "#000000000000", &xr->fg);
+ xr->transparent = parse_boolean (opt (d, o, "transparent", "false"));
+ xr->systemcolors = parse_boolean (opt (d, o, "systemcolors", "false"));
+ /* Get dimensions. */
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"));
+ 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"));
- xr->width = paper_width - xr->left_margin - xr->right_margin;
- xr->length = paper_length - xr->top_margin - xr->bottom_margin;
+ min_break[H] = parse_dimension (opt (d, o, "min-hbreak", NULL)) * scale;
+ min_break[V] = parse_dimension (opt (d, o, "min-vbreak", NULL)) * scale;
+
+ 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)
+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);
+ /* 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 bool
-xr_set_cairo (struct xr_driver *xr, cairo_t *cairo)
+static int
+pango_to_xr (int pango)
{
- int i;
-
- xr->cairo = cairo;
+ return (XR_POINT != PANGO_SCALE
+ ? ceil (pango * (1. * XR_POINT / PANGO_SCALE))
+ : pango);
+}
- cairo_set_line_width (xr->cairo, xr_to_pt (xr->line_width));
+static int
+xr_to_pango (int xr)
+{
+ return (XR_POINT != PANGO_SCALE
+ ? ceil (xr * (1. / XR_POINT * PANGO_SCALE))
+ : xr);
+}
- xr->char_width = 0;
- xr->char_height = 0;
- for (i = 0; i < XR_N_FONTS; i++)
+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++)
{
- struct xr_font *font = &xr->fonts[i];
- int char_width, char_height;
+ PangoLayout *layout = pango_cairo_create_layout (cairo);
+ pango_layout_set_font_description (layout, fonts[i].desc);
- font->layout = pango_cairo_create_layout (cairo);
- pango_layout_set_font_description (font->layout, font->desc);
+ pango_layout_set_text (layout, "0", 1);
- 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, char_width);
- xr->char_height = MAX (xr->char_height, char_height);
+ 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));
}
+}
- if (xr->params == NULL)
+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++)
{
- int single_width, double_width;
-
- 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->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;
-
- 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++)
+ 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)
{
- xr->params->line_widths[i][RENDER_LINE_NONE] = 0;
- xr->params->line_widths[i][RENDER_LINE_SINGLE] = single_width;
- xr->params->line_widths[i][RENDER_LINE_DOUBLE] = double_width;
+ 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));
}
- cairo_set_source_rgb (xr->cairo, xr->fg.red, xr->fg.green, xr->fg.blue);
+ g_object_unref (G_OBJECT (layout));
- return true;
+ return y;
}
-static struct output_driver *
-xr_create (const char *file_name, enum settings_output_devices device_type,
- struct string_map *o, enum xr_output_type file_type)
+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);
+
+ /* If the top heading is nonempty, add some space below it. */
+ if (h && i == 0)
+ h += object_spacing;
+
+ if (height)
+ height[i] = h;
+ total += h;
+ }
+ cairo_destroy (cairo);
+ return total;
+}
+
+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 };
- struct xr_driver *xr;
- cairo_surface_t *surface;
- cairo_status_t status;
- double width_pt, length_pt;
+ 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;
+}
+
+static void
+xr_set_cairo (struct xr_driver *xr, cairo_t *cairo)
+{
+ xr->cairo = cairo;
- xr = xr_allocate (file_name, device_type, o);
+ cairo_set_line_width (xr->cairo, xr_to_pt (XR_LINE_WIDTH));
- width_pt = (xr->width + xr->left_margin + xr->right_margin) / 1000.0;
- length_pt = (xr->length + xr->top_margin + xr->bottom_margin) / 1000.0;
+ xr_measure_fonts (xr->cairo, xr->fonts, &xr->char_width, &xr->char_height);
+
+ 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);
+ }
+
+ if (xr->style == NULL)
+ {
+ xr->style = xmalloc (sizeof *xr->style);
+ *xr->style = (struct xr_fsm_style) {
+ .ref_cnt = 1,
+ .size = { [H] = xr->width, [V] = xr->length },
+ .min_break = { [H] = xr->min_break[H], [V] = xr->min_break[V] },
+ .use_system_colors = xr->systemcolors,
+ .transparent = xr->transparent,
+ .font_scale = xr->font_scale,
+ };
+
+ for (size_t i = 0; i < XR_N_FONTS; i++)
+ xr->style->fonts[i] = pango_font_description_copy (xr->fonts[i].desc);
+ }
+
+ if (!xr->systemcolors)
+ cairo_set_source_rgb (xr->cairo,
+ xr->fg.r / 255.0, xr->fg.g / 255.0, xr->fg.b / 255.0);
+}
+
+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)
+{
+ 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)
- surface = cairo_pdf_surface_create (file_name, width_pt, length_pt);
+ xr->surface = cairo_pdf_surface_create (file_name, width_pt, length_pt);
else if (file_type == XR_PS)
- surface = cairo_ps_surface_create (file_name, width_pt, length_pt);
+ xr->surface = cairo_ps_surface_create (file_name, width_pt, length_pt);
else if (file_type == XR_SVG)
- surface = cairo_svg_surface_create (file_name, width_pt, length_pt);
+ xr->surface = cairo_svg_surface_create (file_name, width_pt, length_pt);
else
NOT_REACHED ();
- status = cairo_surface_status (surface);
+ 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));
- cairo_surface_destroy (surface);
+ file_name, cairo_status_to_string (status));
goto error;
}
- xr->cairo = cairo_create (surface);
- cairo_surface_destroy (surface);
-
- if (!xr_set_cairo (xr, xr->cairo))
+ if (!xr_check_fonts (xr->surface, xr->fonts, xr->width, xr->length))
goto error;
- cairo_save (xr->cairo);
- xr_driver_next_page (xr, xr->cairo);
-
- if (xr->width / xr->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,
- xr->width / xr->char_width);
- goto error;
- }
-
- if (xr->length / xr->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,
- xr->length / xr->char_height);
- goto error;
- }
-
+ fh_unref (fh);
return &xr->driver;
error:
+ fh_unref (fh);
output_driver_destroy (&xr->driver);
return NULL;
}
static struct output_driver *
-xr_pdf_create (const char *file_name, enum settings_output_devices device_type,
+xr_pdf_create (struct file_handle *fh, enum settings_output_devices device_type,
struct string_map *o)
{
- return xr_create (file_name, device_type, o, XR_PDF);
+ return xr_create (fh, device_type, o, XR_PDF);
}
static struct output_driver *
-xr_ps_create (const char *file_name, enum settings_output_devices device_type,
+xr_ps_create (struct file_handle *fh, enum settings_output_devices device_type,
struct string_map *o)
{
- return xr_create (file_name, device_type, o, XR_PS);
+ return xr_create (fh, device_type, o, XR_PS);
}
static struct output_driver *
-xr_svg_create (const char *file_name, enum settings_output_devices device_type,
+xr_svg_create (struct file_handle *fh, enum settings_output_devices device_type,
struct string_map *o)
{
- return xr_create (file_name, device_type, o, XR_SVG);
+ return xr_create (fh, device_type, o, XR_SVG);
}
static void
if (xr->cairo != NULL)
{
- cairo_status_t status;
-
- cairo_surface_finish (cairo_get_target (xr->cairo));
- status = cairo_status (xr->cairo);
+ cairo_surface_finish (xr->surface);
+ cairo_status_t status = cairo_status (xr->cairo);
if (status != CAIRO_STATUS_SUCCESS)
- msg (ME, _("error drawing output for %s driver: %s"),
- output_driver_get_name (driver),
- cairo_status_to_string (status));
+ 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);
}
- free (xr->command_name);
for (i = 0; i < XR_N_FONTS; i++)
{
struct xr_font *font = &xr->fonts[i];
g_object_unref (font->layout);
}
- free (xr->params);
+ xr_fsm_style_unref (xr->style);
free (xr);
}
}
static void
-xr_init_caption_cell (const char *caption, struct table_cell *cell)
+xr_update_page_setup (struct output_driver *driver,
+ const struct page_setup *ps)
{
- 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_widthp, int *caption_heightp)
-{
- const char *caption = table_item_get_caption (item);
+ xr->initial_page_number = ps->initial_page_number;
+ xr->object_spacing = ps->object_spacing * 72 * XR_POINT;
- if (caption != NULL)
- {
- /* XXX doesn't do well with very large captions */
- int min_width, max_width;
- struct table_cell cell;
+ if (xr->cairo)
+ return;
- xr_init_caption_cell (caption, &cell);
+ 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;
- xr_measure_cell_width (xr, &cell, &min_width, &max_width);
- *caption_widthp = MIN (max_width, xr->width);
- *caption_heightp = xr_measure_cell_height (xr, &cell, *caption_widthp);
- }
- else
- *caption_heightp = 0;
+ 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);
+
+ 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;
- return render_page_create (xr->params, table_item_get_table (item));
+ 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);
}
static void
{
struct xr_driver *xr = xr_driver_cast (driver);
- output_driver_track_current_command (output_item, &xr->command_name);
+ if (is_page_setup_item (output_item))
+ {
+ xr_update_page_setup (driver,
+ to_page_setup_item (output_item)->page_setup);
+ return;
+ }
+
+ 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);
+ }
xr_driver_output_item (xr, output_item);
while (xr_driver_need_new_page (xr))
See the big comment in cairo.h for intended usage. */
-/* Gives new page CAIRO to XR for output. CAIRO may be null to skip actually
- rendering the page (which might be useful to find out how many pages an
- output document has without actually rendering it). */
+/* Gives new page CAIRO to XR for output. */
void
xr_driver_next_page (struct xr_driver *xr, cairo_t *cairo)
{
- if (cairo != NULL)
+ if (!xr->transparent)
{
cairo_save (cairo);
- cairo_set_source_rgb (cairo, xr->bg.red, xr->bg.green, xr->bg.blue);
+ 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);
-
- cairo_translate (cairo,
- xr_to_pt (xr->left_margin),
- xr_to_pt (xr->top_margin));
}
+ cairo_translate (cairo,
+ xr_to_pt (xr->left_margin),
+ xr_to_pt (xr->top_margin + xr->headings_height[0]));
xr->page_number++;
xr->cairo = cairo;
xr->y = 0;
+
+ 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);
+
xr_driver_run_fsm (xr);
}
const struct output_item *output_item)
{
assert (xr->fsm == NULL);
- xr->fsm = xr_render_output_item (xr, output_item);
+ xr->fsm = xr_fsm_create (output_item, xr->style, xr->cairo);
xr_driver_run_fsm (xr);
}
static void
xr_driver_destroy_fsm (struct xr_driver *xr)
{
- if (xr->fsm != NULL)
- {
- xr->fsm->destroy (xr->fsm);
- xr->fsm = NULL;
- }
+ xr_fsm_destroy (xr->fsm);
+ xr->fsm = NULL;
}
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 *,
- int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2],
- PangoWrapMode, int *width, int *height);
-
-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_stroke (xr->cairo);
-}
-
-/* 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,
- bool shorten)
-{
- if (left != RENDER_LINE_NONE && right != RENDER_LINE_NONE && !shorten)
- dump_line (xr, x0, y, x3, y);
- else
- {
- if (left != RENDER_LINE_NONE)
- dump_line (xr, x0, y, shorten ? x1 : x2, y);
- if (right != RENDER_LINE_NONE)
- dump_line (xr, shorten ? x2 : x1, y, x3, y);
- }
-}
-
-/* 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,
- bool shorten)
-{
- if (top != RENDER_LINE_NONE && bottom != RENDER_LINE_NONE && !shorten)
- dump_line (xr, x, y0, x, y3);
- else
- {
- if (top != RENDER_LINE_NONE)
- dump_line (xr, x, y0, x, shorten ? y1 : y2);
- if (bottom != RENDER_LINE_NONE)
- dump_line (xr, x, shorten ? y2 : y1, x, y3);
- }
-}
-
-static void
-xr_draw_line (void *xr_, int bb[TABLE_N_AXES][2],
- enum render_line_style styles[TABLE_N_AXES][2])
-{
- 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 left = styles[V][0];
- const int bottom = styles[H][1];
- const int right = styles[V][1];
-
- /* 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 = left == RENDER_LINE_DOUBLE || right == 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 = left == RENDER_LINE_DOUBLE;
- bool shorten_x2_lines = right == 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, left, right, 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);
- }
-
- if (!double_vert)
- vert_line (xr, y0, y1, y2, y3, xc, top, bottom, shorten_xc_line);
- else
- {
- vert_line (xr, y0, y1, y2, y3, x1, top, bottom, shorten_x1_lines);
- vert_line (xr, y0, y1, y2, y3, x2, top, bottom, shorten_x2_lines);
- }
-}
-
-static void
-xr_measure_cell_width (void *xr_, const struct table_cell *cell,
- int *min_width, int *max_width)
-{
- 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, PANGO_WRAP_WORD, max_width, &h);
-
- bb[H][1] = 1;
- xr_layout_cell (xr, cell, bb, clip, PANGO_WRAP_WORD, min_width, &h);
-}
-
-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;
- 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);
- return h;
-}
-
-static void
-xr_draw_cell (void *xr_, const struct table_cell *cell,
- int bb[TABLE_N_AXES][2], int clip[TABLE_N_AXES][2])
-{
- struct xr_driver *xr = xr_;
- int w, h;
-
- xr_layout_cell (xr, cell, bb, clip, PANGO_WRAP_WORD, &w, &h);
-}
-\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;
-
- font = (cell->options & TAB_FIX ? &xr->fonts[XR_FONT_FIXED]
- : cell->options & TAB_EMPH ? &xr->fonts[XR_FONT_EMPHASIS]
- : &xr->fonts[XR_FONT_PROPORTIONAL]);
-
- pango_layout_set_text (font->layout, cell->contents, -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
- : 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);
-
- if (clip[H][0] != clip[H][1])
+ if (xr->fsm != NULL)
{
cairo_save (xr->cairo);
-
- if (clip[H][1] != INT_MAX || clip[V][1] != INT_MAX)
- {
- 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);
- }
-
- 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_translate (xr->cairo, 0, xr_to_pt (xr->y));
+ int used = xr_fsm_draw_slice (xr->fsm, xr->cairo, xr->length - xr->y);
+ xr->y += used;
cairo_restore (xr->cairo);
- }
-
- pango_layout_get_size (font->layout, width, height);
-}
-static void
-xr_draw_title (struct xr_driver *xr, const char *title,
- int title_width, int title_height)
-{
- struct table_cell cell;
- int bb[TABLE_N_AXES][2];
-
- xr_init_caption_cell (title, &cell);
- bb[H][0] = 0;
- bb[H][1] = title_width;
- bb[V][0] = 0;
- bb[V][1] = title_height;
- xr_draw_cell (xr, &cell, bb, bb);
+ if (xr_fsm_is_empty (xr->fsm))
+ xr_driver_destroy_fsm (xr);
+ }
}
\f
struct output_driver_factory pdf_driver_factory =
xr_flush,
};
\f
-/* GUI rendering helpers. */
-
-struct xr_rendering
- {
- struct output_item *item;
-
- /* Table items. */
- struct render_page *page;
- struct xr_driver *xr;
- int title_width;
- int title_height;
- };
-
-#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);
- if (!xr_set_cairo (xr, cairo))
- {
- output_driver_destroy (&xr->driver);
- return NULL;
- }
+ struct xr_driver *xr = xr_allocate ("cairo", 0, options, 1.0);
+ xr_set_cairo (xr, cairo);
return xr;
}
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);
- 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);
- 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_width, &r->title_height);
- }
- else if (is_chart_item (item))
- {
- r = xzalloc (sizeof *r);
- r->item = output_item_ref (item);
- }
-
- return r;
-}
-
-void
-xr_rendering_measure (struct xr_rendering *r, int *w, int *h)
-{
- if (is_table_item (r->item))
- {
- int w0 = render_page_get_size (r->page, H);
- int w1 = r->title_width;
- *w = MAX (w0, w1) / XR_POINT;
- *h = (render_page_get_size (r->page, V) + r->title_height) / XR_POINT;
- }
- else
- {
- *w = CHART_WIDTH;
- *h = CHART_HEIGHT;
- }
-}
-
-static void xr_draw_chart (const struct chart_item *, cairo_t *,
- double x, double y, double width, double height);
-
-/* Draws onto CR at least the region of R that is enclosed in (X,Y)-(X+W,Y+H),
- and possibly some additional parts. */
-void
-xr_rendering_draw (struct xr_rendering *r, cairo_t *cr,
- int x, int y, int w, int h)
-{
- if (is_table_item (r->item))
- {
- struct xr_driver *xr = r->xr;
-
- xr_set_cairo (xr, cr);
-
- if (r->title_height > 0)
- {
- xr->y = 0;
- xr_draw_title (xr, table_item_get_caption (to_table_item (r->item)),
- r->title_width, r->title_height);
- }
-
- xr->y = r->title_height;
- render_page_draw_region (r->page,
- x * XR_POINT, (y * XR_POINT) - r->title_height,
- w * XR_POINT, h * 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)
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 struct xr_color *fg,
- const struct xr_color *bg
- )
+ const struct cell_color *fg,
+ const struct cell_color *bg)
{
const int width = 640;
const int length = 480;
number_pos = strchr (file_name_template, '#');
if (number_pos != NULL)
- file_name = xasprintf ("%.*s%d%s", (int) (number_pos - file_name_template),
+ file_name = xasprintf ("%.*s%d%s.png", (int) (number_pos - file_name_template),
file_name_template, number, number_pos + 1);
else
- file_name = xstrdup (file_name_template);
+ 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->red, bg->green, bg->blue);
+ 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->red, fg->green, fg->blue);
+ 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);
return file_name;
}
-\f
-struct xr_table_state
- {
- struct xr_render_fsm fsm;
- struct table_item *table_item;
- struct render_break x_break;
- struct render_break y_break;
- int caption_height;
- };
-
-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);
-
- for (;;)
- {
- struct render_page *y_slice;
- int space;
-
- while (!render_break_has_next (&ts->y_break))
- {
- struct render_page *x_slice;
-
- render_break_destroy (&ts->y_break);
- if (!render_break_has_next (&ts->x_break))
- return false;
-
- x_slice = render_break_next (&ts->x_break, xr->width);
- render_break_init (&ts->y_break, x_slice, V);
- }
-
- space = xr->length - xr->y;
- if (render_break_next_size (&ts->y_break) > space)
- {
- assert (xr->y > 0);
- return true;
- }
-
- y_slice = render_break_next (&ts->y_break, space);
- if (ts->caption_height)
- {
- if (xr->cairo)
- xr_draw_title (xr, table_item_get_caption (ts->table_item),
- xr->width, ts->caption_height);
-
- xr->y += ts->caption_height;
- ts->caption_height = 0;
- }
-
- if (xr->cairo)
- render_page_draw (y_slice);
- xr->y += render_page_get_size (y_slice, V);
- render_page_unref (y_slice);
- }
-}
-
-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_break_destroy (&ts->x_break);
- render_break_destroy (&ts->y_break);
- 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;
- struct render_page *page;
- int caption_width;
-
- 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;
-
- page = xr_render_table_item (xr, table_item,
- &caption_width, &ts->caption_height);
- xr->params->size[V] = xr->length - ts->caption_height;
-
- render_break_init (&ts->x_break, page, H);
- render_break_init_empty (&ts->y_break);
-
- 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);
-
- if (xr->y > 0)
- return true;
-
- if (xr->cairo != NULL)
- xr_draw_chart (cs->chart_item, xr->cairo, 0.0, 0.0,
- xr_to_pt (xr->width), xr_to_pt (xr->length));
- xr->y = xr->length;
-
- 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)
+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)
{
- struct table_item *table_item;
- struct xr_render_fsm *fsm;
+ const int width = 640;
+ const int length = 480;
- table_item = table_item_create (table_from_string (TAB_LEFT, text), NULL);
- fsm = xr_render_table (xr, table_item);
- table_item_unref (table_item);
+ cairo_surface_t *surface;
+ const char *number_pos;
+ char *file_name;
+ cairo_t *cr;
- return fsm;
-}
+ 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);
-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);
+ surface = cairo_ps_surface_create (file_name, width, length);
+ cairo_ps_surface_set_eps (surface, true);
+ cr = cairo_create (surface);
- 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);
- }
+ cairo_set_source_rgb (cr, bg->r / 255.0, bg->g / 255.0, bg->b / 255.0);
+ cairo_paint (cr);
- return NULL;
-}
+ cairo_set_source_rgb (cr, fg->r / 255.0, fg->g / 255.0, fg->b / 255.0);
-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;
+ xr_draw_chart (item, cr, 0.0, 0.0, width, length);
- s = msg_to_string (msg, xr->command_name);
- fsm = xr_create_text_renderer (xr, s);
- free (s);
+ cairo_destroy (cr);
+ cairo_surface_destroy (surface);
- return fsm;
+ return file_name;
}
-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;
-}