#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/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/table-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>
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 top_margin; /* Top margin in inch/(72 * XR_POINT). */
int bottom_margin; /* Bottom margin in inch/(72 * XR_POINT). */
- int line_space; /* Space between lines. */
- int line_width; /* Width of lines. */
-
int min_break[TABLE_N_AXES]; /* Min cell size to break across pages. */
int object_spacing; /* Space between output objects. */
/* Internal state. */
struct render_params *params;
+ struct xr_fsm_style *style;
double font_scale;
int char_width, char_height;
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;
int clip[TABLE_N_AXES][2]);
static int xr_adjust_break (void *, const struct table_cell *,
int width, int height);
-
-static struct xr_render_fsm *xr_render_output_item (
- struct xr_driver *, const struct output_item *);
\f
/* Output driver basics. */
(d, o, "fixed-font", "monospace", font_size, false, false);
xr->fonts[XR_FONT_PROPORTIONAL].desc = parse_font_option (
d, o, "prop-font", "sans serif", font_size, false, false);
- xr->fonts[XR_FONT_EMPHASIS].desc = parse_font_option (
- d, o, "emph-font", "sans serif", font_size, false, true);
xr->fg = parse_color (opt (d, o, "foreground-color", "#000000000000"));
xr->bg = parse_color (opt (d, o, "background-color", "#FFFFFFFFFFFF"));
if (xr->params == NULL)
{
+ static const struct render_ops xr_render_ops = {
+ .draw_line = xr_draw_line,
+ .measure_cell_width = xr_measure_cell_width,
+ .measure_cell_height = xr_measure_cell_height,
+ .adjust_break = xr_adjust_break,
+ .draw_cell = xr_draw_cell,
+ };
+
xr->params = xmalloc (sizeof *xr->params);
- xr->params->draw_line = xr_draw_line;
- xr->params->measure_cell_width = xr_measure_cell_width;
- xr->params->measure_cell_height = xr_measure_cell_height;
- xr->params->adjust_break = xr_adjust_break;
- xr->params->draw_cell = xr_draw_cell;
+ xr->params->ops = &xr_render_ops;
xr->params->aux = xr;
xr->params->size[H] = xr->width;
xr->params->size[V] = xr->length;
xr->params->font_size[H] = xr->char_width;
xr->params->font_size[V] = xr->char_height;
- int lw = XR_LINE_WIDTH;
- int ls = XR_LINE_SPACE;
- for (int i = 0; i < TABLE_N_AXES; i++)
+ enum { LW = XR_LINE_WIDTH, LS = XR_LINE_SPACE };
+ static const int xr_line_widths[RENDER_N_LINES] =
{
- xr->params->line_widths[i][RENDER_LINE_NONE] = 0;
- xr->params->line_widths[i][RENDER_LINE_SINGLE] = lw;
- xr->params->line_widths[i][RENDER_LINE_DASHED] = lw;
- xr->params->line_widths[i][RENDER_LINE_THICK] = lw * 2;
- xr->params->line_widths[i][RENDER_LINE_THIN] = lw / 2;
- xr->params->line_widths[i][RENDER_LINE_DOUBLE] = 2 * lw + ls;
- }
+ [RENDER_LINE_NONE] = 0,
+ [RENDER_LINE_SINGLE] = LW,
+ [RENDER_LINE_DASHED] = LW,
+ [RENDER_LINE_THICK] = LW * 2,
+ [RENDER_LINE_THIN] = LW / 2,
+ [RENDER_LINE_DOUBLE] = 2 * LW + LS,
+ };
+ xr->params->line_widths = xr_line_widths;
for (int i = 0; i < TABLE_N_AXES; i++)
xr->params->min_break[i] = xr->min_break[i];
xr->params->rtl = render_direction_rtl ();
}
+ 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);
g_object_unref (font->layout);
}
+ xr_fsm_style_unref (xr->style);
free (xr->params);
free (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);
+ if (xr->fsm != NULL)
+ {
+ cairo_save (xr->cairo);
+ 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);
+
+ if (xr_fsm_is_empty (xr->fsm))
+ xr_driver_destroy_fsm (xr);
+ }
}
\f
static void
xr_flush,
};
\f
-/* GUI rendering helpers. */
-
-struct xr_rendering
- {
- struct output_item *item;
-
- /* Table items. */
- struct render_pager *p;
- struct xr_driver *xr;
- };
-
-#define CHART_WIDTH 500
-#define CHART_HEIGHT 375
-
-
-
struct xr_driver *
xr_driver_create (cairo_t *cairo, struct string_map *options)
{
output_driver_destroy (&xr->driver);
}
}
-
-static struct xr_rendering *
-xr_rendering_create_text (struct xr_driver *xr, const char *text, cairo_t *cr)
-{
- struct table_item *table_item;
- struct xr_rendering *r;
-
- table_item = table_item_create (table_from_string (text), NULL, NULL);
- r = xr_rendering_create (xr, &table_item->output_item, cr);
- table_item_unref (table_item);
-
- return r;
-}
-
-struct xr_rendering *
-xr_rendering_create (struct xr_driver *xr, const struct output_item *item,
- cairo_t *cr)
-{
- struct xr_rendering *r = NULL;
-
- if (is_text_item (item))
- r = xr_rendering_create_text (xr, text_item_get_text (to_text_item (item)),
- cr);
- else if (is_message_item (item))
- {
- const struct message_item *message_item = to_message_item (item);
- char *s = msg_to_string (message_item_get_msg (message_item));
- r = xr_rendering_create_text (xr, s, cr);
- free (s);
- }
- else if (is_table_item (item))
- {
- r = xzalloc (sizeof *r);
- r->item = output_item_ref (item);
- r->xr = xr;
- xr_set_cairo (xr, cr);
- r->p = render_pager_create (xr->params, to_table_item (item));
- }
- else if (is_chart_item (item))
- {
- r = xzalloc (sizeof *r);
- r->item = output_item_ref (item);
- }
- else if (is_group_open_item (item))
- r = xr_rendering_create_text (xr, to_group_open_item (item)->command_name,
- cr);
-
- return r;
-}
-
-void
-xr_rendering_destroy (struct xr_rendering *r)
-{
- if (r)
- {
- output_item_unref (r->item);
- render_pager_destroy (r->p);
- free (r);
- }
-}
-
-void
-xr_rendering_measure (const struct xr_rendering *r, int *wp, int *hp)
-{
- int w, h;
-
- if (is_table_item (r->item))
- {
- w = render_pager_get_size (r->p, H) / XR_POINT;
- h = render_pager_get_size (r->p, V) / XR_POINT;
- }
- else
- {
- w = CHART_WIDTH;
- h = CHART_HEIGHT;
- }
-
- if (wp)
- *wp = w;
- if (hp)
- *hp = h;
-}
-
-static void xr_draw_chart (const struct chart_item *, cairo_t *,
- double x, double y, double width, double height);
-
-/* Draws onto CR */
-void
-xr_rendering_draw (struct xr_rendering *r, cairo_t *cr,
- int x0, int y0, int x1, int y1)
-{
- if (is_table_item (r->item))
- {
- struct xr_driver *xr = r->xr;
-
- xr_set_cairo (xr, cr);
-
- render_pager_draw_region (r->p, x0 * XR_POINT, y0 * XR_POINT,
- (x1 - x0) * XR_POINT, (y1 - y0) * XR_POINT);
- }
- else
- xr_draw_chart (to_chart_item (r->item), cr,
- 0, 0, CHART_WIDTH, CHART_HEIGHT);
-}
-
static void
xr_draw_chart (const struct chart_item *chart_item, cairo_t *cr,
double x, double y, double width, double height)
return file_name;
}
-\f
-
-struct xr_table_state
- {
- struct xr_render_fsm fsm;
- struct render_pager *p;
- };
-
-static bool
-xr_table_render (struct xr_render_fsm *fsm, struct xr_driver *xr)
-{
- struct xr_table_state *ts = UP_CAST (fsm, struct xr_table_state, fsm);
-
- while (render_pager_has_next (ts->p))
- {
- int used;
-
- used = render_pager_draw_next (ts->p, xr->length - xr->y);
- if (!used)
- {
- assert (xr->y > 0);
- return true;
- }
- else
- xr->y += used;
- }
- return false;
-}
-
-static void
-xr_table_destroy (struct xr_render_fsm *fsm)
-{
- struct xr_table_state *ts = UP_CAST (fsm, struct xr_table_state, fsm);
-
- render_pager_destroy (ts->p);
- free (ts);
-}
-
-static struct xr_render_fsm *
-xr_render_table (struct xr_driver *xr, struct table_item *table_item)
-{
- struct xr_table_state *ts;
-
- ts = xmalloc (sizeof *ts);
- ts->fsm.render = xr_table_render;
- ts->fsm.destroy = xr_table_destroy;
-
- if (xr->y > 0)
- xr->y += xr->char_height;
-
- ts->p = render_pager_create (xr->params, table_item);
- table_item_unref (table_item);
-
- return &ts->fsm;
-}
-\f
-struct xr_chart_state
- {
- struct xr_render_fsm fsm;
- struct chart_item *chart_item;
- };
-
-static bool
-xr_chart_render (struct xr_render_fsm *fsm, struct xr_driver *xr)
-{
- struct xr_chart_state *cs = UP_CAST (fsm, struct xr_chart_state, fsm);
-
- const int chart_height = 0.8 * (xr->length < xr->width ? xr->length : xr->width);
-
- if (xr->y > xr->length - chart_height)
- return true;
-
- if (xr->cairo != NULL)
- {
- xr_draw_chart (cs->chart_item, xr->cairo,
- 0.0,
- xr_to_pt (xr->y),
- xr_to_pt (xr->width),
- xr_to_pt (chart_height));
- }
- xr->y += chart_height;
-
- return false;
-}
-
-static void
-xr_chart_destroy (struct xr_render_fsm *fsm)
-{
- struct xr_chart_state *cs = UP_CAST (fsm, struct xr_chart_state, fsm);
-
- chart_item_unref (cs->chart_item);
- free (cs);
-}
-
-static struct xr_render_fsm *
-xr_render_chart (const struct chart_item *chart_item)
-{
- struct xr_chart_state *cs;
-
- cs = xmalloc (sizeof *cs);
- cs->fsm.render = xr_chart_render;
- cs->fsm.destroy = xr_chart_destroy;
- cs->chart_item = chart_item_ref (chart_item);
-
- return &cs->fsm;
-}
-\f
-static bool
-xr_eject_render (struct xr_render_fsm *fsm UNUSED, struct xr_driver *xr)
-{
- return xr->y > 0;
-}
-
-static void
-xr_eject_destroy (struct xr_render_fsm *fsm UNUSED)
-{
- /* Nothing to do. */
-}
-
-static struct xr_render_fsm *
-xr_render_eject (void)
-{
- static struct xr_render_fsm eject_renderer =
- {
- xr_eject_render,
- xr_eject_destroy
- };
-
- return &eject_renderer;
-}
-\f
-static struct xr_render_fsm *
-xr_render_text (struct xr_driver *xr, const struct text_item *text_item)
-{
- enum text_item_type type = text_item_get_type (text_item);
-
- switch (type)
- {
- case TEXT_ITEM_PAGE_TITLE:
- break;
-
- case TEXT_ITEM_EJECT_PAGE:
- if (xr->y > 0)
- return xr_render_eject ();
- break;
-
- default:
- return xr_render_table (
- xr, text_item_to_table_item (text_item_ref (text_item)));
- }
-
- return NULL;
-}
-
-static struct xr_render_fsm *
-xr_render_message (struct xr_driver *xr,
- const struct message_item *message_item)
-{
- char *s = msg_to_string (message_item_get_msg (message_item));
- struct text_item *item = text_item_create (TEXT_ITEM_LOG, s);
- free (s);
- return xr_render_table (xr, text_item_to_table_item (item));
-}
-
-static struct xr_render_fsm *
-xr_render_output_item (struct xr_driver *xr,
- const struct output_item *output_item)
-{
- if (is_table_item (output_item))
- return xr_render_table (xr, table_item_ref (to_table_item (output_item)));
- else if (is_chart_item (output_item))
- return xr_render_chart (to_chart_item (output_item));
- else if (is_text_item (output_item))
- return xr_render_text (xr, to_text_item (output_item));
- else if (is_message_item (output_item))
- return xr_render_message (xr, to_message_item (output_item));
- else
- return NULL;
-}
-
-bool
-xr_draw_svg_file (struct xr_rendering *r,
- const char *filename)
-{
- int width, height;
- g_assert (r);
- xr_rendering_measure (r, &width, &height);
- cairo_surface_t *surface = cairo_svg_surface_create (filename, width, height);
- if (!surface)
- {
- g_error ("Could not create cairo svg surface with file %s", filename);
- return FALSE;
- }
- cairo_t *cr = cairo_create (surface);
- xr_rendering_draw (r, cr, 0, 0, width, height);
- cairo_destroy (cr);
- cairo_surface_destroy (surface);
- return TRUE;
-}
projects / pspp / blobdiff