/* PSPP - a program for statistical analysis.
- Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+ Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014 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 "output/charts/piechart.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/driver-provider.h"
#include "output/message-item.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 "gl/error.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. */
+/* 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
/* 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 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. */
+ 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 const struct output_driver_class cairo_driver_class;
-static void draw_headers (struct xr_driver *);
static void xr_driver_destroy_fsm (struct xr_driver *);
static void xr_driver_run_fsm (struct xr_driver *);
-static bool load_font (struct xr_driver *, struct xr_font *);
-static void free_font (struct xr_font *);
-
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 *,
static void xr_draw_cell (void *, const struct table_cell *,
int bb[TABLE_N_AXES][2],
int clip[TABLE_N_AXES][2]);
+static int xr_adjust_break (void *, const struct table_cell *,
+ int width, int height);
static struct xr_render_fsm *xr_render_output_item (
struct xr_driver *, const struct output_item *);
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)
+{
+ 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);
+
+ /* 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;
- struct output_driver *d;
- struct xr_driver *xr;
+ int font_size;
+ int min_break[TABLE_N_AXES];
- xr = xzalloc (sizeof *xr);
- d = &xr->driver;
- output_driver_init (d, &cairo_driver_class, name, device_type);
- 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;
+ /* 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->line_gutter = parse_dimension (opt (d, o, "gutter", "3pt")) * scale;
xr->line_space = XR_POINT;
xr->line_width = XR_POINT / 2;
xr->page_number = 0;
- xr->headers = parse_boolean (opt (d, o, "headers", "true"));
+ 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);
- 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"));
+
+ 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);
- 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;
+ 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));
+ }
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;
}
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;
xr = xr_allocate (file_name, device_type, o);
- d = &xr->driver;
- width_pt = (xr->width + xr->left_margin + xr->right_margin) / 1000.0;
- length_pt = (xr->length + xr->top_margin + xr->bottom_margin) / 1000.0;
+ 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 (file_type == XR_PS)
status = cairo_surface_status (surface);
if (status != CAIRO_STATUS_SUCCESS)
{
- error (0, 0, _("error 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;
cairo_save (xr->cairo);
xr_driver_next_page (xr, xr->cairo);
- if (xr->width / (xr->font_height / 2) < MIN_WIDTH)
+ 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;
}
- draw_headers (xr);
-
return &xr->driver;
error:
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_init_caption_cell (const char *caption, struct table_cell *cell,
+ struct cell_contents *contents)
{
- cell->contents = caption;
- cell->options = TAB_LEFT;
+ contents->options = TAB_LEFT;
+ contents->text = CONST_CAST (char *, caption);
+ contents->table = NULL;
+ cell->contents = contents;
+ cell->n_contents = 1;
cell->destructor = NULL;
}
-static struct render_page *
+static struct render_pager *
xr_render_table_item (struct xr_driver *xr, const struct table_item *item,
- int *caption_heightp)
+ int *caption_widthp, int *caption_heightp)
{
const char *caption = table_item_get_caption (item);
if (caption != NULL)
{
/* XXX doesn't do well with very large captions */
+ struct cell_contents contents;
+ int min_width, max_width;
struct table_cell cell;
- xr_init_caption_cell (caption, &cell);
- *caption_heightp = xr_measure_cell_height (xr, &cell, xr->width);
+
+ xr_init_caption_cell (caption, &cell, &contents);
+
+ 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;
- return render_page_create (xr->params, table_item_get_table (item));
+ return render_pager_create (xr->params, item);
}
static void
{
struct xr_driver *xr = xr_driver_cast (driver);
+ output_driver_track_current_command (output_item, &xr->command_name);
+
xr_driver_output_item (xr, output_item);
while (xr_driver_need_new_page (xr))
{
}
\f
/* Functions for rendering a series of output items to a series of Cairo
- contexts, with pagination, possibly including headers.
+ contexts, with pagination.
Used by PSPPIRE for printing, and by the basic Cairo output driver above as
its underlying implementation.
xr_driver_next_page (struct xr_driver *xr, cairo_t *cairo)
{
if (cairo != NULL)
- cairo_translate (cairo,
- xr_to_pt (xr->left_margin),
- xr_to_pt (xr->top_margin));
+ {
+ 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);
+
+ cairo_translate (cairo,
+ xr_to_pt (xr->left_margin),
+ xr_to_pt (xr->top_margin));
+ }
xr->page_number++;
xr->cairo = cairo;
- xr->y = 0;
- draw_headers (xr);
+ xr->x = xr->y = 0;
xr_driver_run_fsm (xr);
}
return xr->fsm != NULL;
}
-/* Returns true if the current page doesn't have any content yet (besides
- headers, if enabled). */
+/* Returns true if the current page doesn't have any content yet. */
bool
xr_driver_is_page_blank (const struct xr_driver *xr)
{
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);
+ 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);
}
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, 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, bb, clip, min_width, &h, NULL);
}
static int
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, bb, clip, &w, &h, NULL);
return h;
}
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);
+ xr_layout_cell (xr, cell, 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 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 - xr->y;
- bb[H][1] = x + max_width;
- bb[V][1] = xr->font_height - xr->y;
- xr_layout_cell (xr, &cell, bb, bb, PANGO_WRAP_WORD_CHAR, &w, &h);
- return w;
-}
+ if (xr_measure_cell_height (xr_, cell, 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. */
-static void
-draw_header_line (struct xr_driver *xr, const char *left, const char *right,
- int x0, int x1, int y)
-{
- 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);
+ bb[H][0] = 0;
+ bb[H][1] = width;
+ 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, bb, clip, &w, &h, &brk);
+ return brk;
}
-
-/* Draw top of page headers for XR. */
+\f
static void
-draw_headers (struct xr_driver *xr)
+xr_clip (struct xr_driver *xr, int clip[TABLE_N_AXES][2])
{
- char *r1, *r2;
- int x0, x1;
- int y;
-
- if (!xr->headers || xr->cairo == NULL)
- return;
-
- 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);
-
- y += xr->line_width + xr->line_gutter;
-
- r1 = xasprintf (_("%s - Page %d"), get_start_date (), xr->page_number);
- r2 = xasprintf ("%s - %s", version, host_system);
-
- draw_header_line (xr, xr->title, r1, x0, x1, y);
- y += xr->font_height;
-
- draw_header_line (xr, xr->subtitle, r2, x0, x1, y);
+ 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);
- free (r1);
- free (r2);
+ cairo_rectangle (xr->cairo, x0, y0, x1 - x0, y1 - y0);
+ cairo_clip (xr->cairo);
+ }
}
-\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)
+
+static int
+xr_layout_cell_text (struct xr_driver *xr,
+ const struct cell_contents *contents,
+ 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;
+ int w, h;
- font = (cell->options & TAB_FIX ? &xr->fonts[XR_FONT_FIXED]
- : cell->options & TAB_EMPH ? &xr->fonts[XR_FONT_EMPHASIS]
+ 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);
+ 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;
+
+ /* 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;
+ *brk = bottom;
+ }
+ else
+ break;
+ }
+ while (pango_layout_iter_next_line (iter));
- pango_layout_get_size (font->layout, &w, &h);
- if (width != NULL)
- *width = w;
- if (height != NULL)
- *height = h;
+ /* 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);
+ }
+ }
}
+ 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 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]);
- language = pango_language_get_default ();
- context = pango_layout_get_context (font->layout);
- font->metrics = pango_context_get_metrics (context, font->desc, language);
+ /* 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];
+ }
- return true;
+ 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;
+
+ 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 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];
+ }
+
+ if (contents->text)
+ bb[V][0] = xr_layout_cell_text (xr, contents, bb, clip,
+ bb[V][0], width, brk);
+ else
+ bb[V][0] = xr_layout_cell_subtable (xr, contents, bb, clip, width, brk);
+ }
+ *height = bb[V][0] - bb_[V][0];
}
-struct output_driver_factory pdf_driver_factory = { "pdf", xr_pdf_create };
-struct output_driver_factory ps_driver_factory = { "ps", xr_ps_create };
-struct output_driver_factory svg_driver_factory = { "svg", xr_svg_create };
+static void
+xr_draw_title (struct xr_driver *xr, const char *title,
+ int title_width, int title_height)
+{
+ struct cell_contents contents;
+ struct table_cell cell;
+ int bb[TABLE_N_AXES][2];
+
+ xr_init_caption_cell (title, &cell, &contents);
+ 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);
+}
+\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 =
{
struct xr_rendering
{
+ struct output_item *item;
+
/* Table items. */
- struct render_page *page;
+ struct render_pager *p;
struct xr_driver *xr;
+ int title_width;
int title_height;
-
- /* Chart items. */
- struct chart_item *chart;
};
#define CHART_WIDTH 500
#define CHART_HEIGHT 375
+
+
struct xr_driver *
xr_driver_create (cairo_t *cairo, struct string_map *options)
{
struct table_item *table_item;
struct xr_rendering *r;
- table_item = table_item_create (table_from_string (0, text), NULL);
+ 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)
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 = 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->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;
+ int w0 = render_pager_get_size (r->p, H);
+ int w1 = r->title_width;
+ *w = MAX (w0, w1) / XR_POINT;
+ *h = (render_pager_get_size (r->p, V) + r->title_height) / 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 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)
+xr_rendering_draw (struct xr_rendering *r, cairo_t *cr,
+ int x, int y, int w, int h)
{
- 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);
+
+ 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_pager_draw_region (r->p,
+ x * XR_POINT, (y * XR_POINT) - r->title_height,
+ w * XR_POINT, h * XR_POINT);
}
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_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
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, _("error writing output file \"%s\": %s"),
+ msg (ME, _("error writing output file `%s': %s"),
file_name, cairo_status_to_string (status));
cairo_destroy (cr);
{
struct xr_render_fsm fsm;
struct table_item *table_item;
- struct render_break x_break;
- struct render_break y_break;
+ struct render_pager *p;
int caption_height;
};
{
struct xr_table_state *ts = UP_CAST (fsm, struct xr_table_state, fsm);
- for (;;)
+ while (render_pager_has_next (ts->p))
{
- 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;
+ int caption_height = ts->caption_height;
+ int used;
- 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)
+ xr->y += caption_height;
+ used = render_pager_draw_next (ts->p, xr->length - xr->y);
+ xr->y -= caption_height;
+ if (!used)
{
assert (xr->y > 0);
return true;
}
-
- y_slice = render_break_next (&ts->y_break, space);
- if (ts->caption_height)
+ else
{
- if (xr->cairo)
+ if (ts->caption_height)
{
- struct table_cell cell;
- int bb[TABLE_N_AXES][2];
-
- xr_init_caption_cell (table_item_get_caption (ts->table_item),
- &cell);
- bb[H][0] = 0;
- bb[H][1] = xr->width;
- bb[V][0] = 0;
- bb[V][1] = ts->caption_height;
- xr_draw_cell (xr, &cell, bb, bb);
+ if (xr->cairo)
+ xr_draw_title (xr, table_item_get_caption (ts->table_item),
+ xr->width, ts->caption_height);
+ ts->caption_height = 0;
}
- xr->y += ts->caption_height;
- ts->caption_height = 0;
+ xr->y += caption_height + used;
}
-
- if (xr->cairo)
- render_page_draw (y_slice);
- xr->y += render_page_get_size (y_slice, V);
- render_page_unref (y_slice);
}
+ return false;
}
static void
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);
+ render_pager_destroy (ts->p);
free (ts);
}
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->table_item = table_item_ref (table_item);
if (xr->y > 0)
- xr->y += xr->font_height;
+ xr->y += xr->char_height;
- page = xr_render_table_item (xr, table_item, &ts->caption_height);
+ ts->p = 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
case TEXT_ITEM_TITLE:
free (xr->title);
xr->title = xstrdup (text);
- draw_headers (xr);
break;
case TEXT_ITEM_SUBTITLE:
free (xr->subtitle);
xr->subtitle = xstrdup (text);
- draw_headers (xr);
break;
case TEXT_ITEM_COMMAND_CLOSE:
case TEXT_ITEM_BLANK_LINE:
if (xr->y > 0)
- xr->y += xr->font_height;
+ xr->y += xr->char_height;
break;
case TEXT_ITEM_EJECT_PAGE:
projects / pspp / blobdiff