cairo: Factor out code for basic rendering.

[pspp] / src / output / cairo-fsm.h

diff --git a/src/output/cairo-fsm.h b/src/output/cairo-fsm.h
new file mode 100644 (file)
index 0000000..60a6efb
--- /dev/null
+++ b/src/output/cairo-fsm.h
@@ -0,0 +1,69 @@
+/* PSPP - a program for statistical analysis.
+   Copyright (C) 2009, 2010, 2014, 2020 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
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef OUTPUT_CAIRO_FSM_H
+#define OUTPUT_CAIRO_FSM_H 1
+
+#include <stdbool.h>
+
+#ifdef HAVE_CAIRO
+
+#include <cairo/cairo.h>
+#include <pango/pango-font.h>
+#include "output/table.h"
+
+struct xr_fsm;
+struct output_item;
+
+enum xr_font_type
+  {
+    XR_FONT_PROPORTIONAL,
+    XR_FONT_FIXED,
+    XR_N_FONTS
+  };
+
+struct xr_fsm_style
+  {
+    int ref_cnt;
+
+    int size[TABLE_N_AXES];     /* Page size. */
+    int min_break[TABLE_N_AXES]; /* Minimum cell size to allow breaking. */
+    PangoFontDescription *fonts[XR_N_FONTS];
+    bool use_system_colors;
+    bool transparent;
+    double font_scale;
+  };
+struct xr_fsm_style *xr_fsm_style_ref (const struct xr_fsm_style *);
+void xr_fsm_style_unref (struct xr_fsm_style *);
+bool xr_fsm_style_equals (const struct xr_fsm_style *,
+                          const struct xr_fsm_style *);
+
+struct xr_fsm *xr_fsm_create (const struct output_item *,
+                              const struct xr_fsm_style *,
+                              cairo_t *);
+void xr_fsm_destroy (struct xr_fsm *);
+
+void xr_fsm_measure (struct xr_fsm *, cairo_t *, int *w, int *h);
+void xr_fsm_draw_all (struct xr_fsm *, cairo_t *);
+void xr_fsm_draw_region (struct xr_fsm *, cairo_t *,
+                         int x, int y, int w, int h);
+
+int xr_fsm_draw_slice (struct xr_fsm *, cairo_t *, int space);
+bool xr_fsm_is_empty (const struct xr_fsm *);
+
+#endif  /* HAVE_CAIRO */
+
+#endif /* output/cairo-fsm.h */