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authorThomas White <taw@bitwiz.me.uk>2019-02-23 18:04:22 +0100
committerThomas White <taw@bitwiz.me.uk>2019-02-23 18:04:22 +0100
commit0cf09c110c9919efcbc3ff3b59cb83622b4ce1b2 (patch)
treef9da8c140afb5dabc8f6d5b8f4dbe8c20793a938 /libstorycode
parent14c998b253489b88bc4da904409e32c86bbe92c0 (diff)
Render text with font
Diffstat (limited to 'libstorycode')
-rw-r--r--libstorycode/scparse_priv.h1
-rw-r--r--libstorycode/slide.h23
-rw-r--r--libstorycode/slide_render_cairo.c17
-rw-r--r--libstorycode/storycode.y36
-rw-r--r--libstorycode/stylesheet.c95
-rw-r--r--libstorycode/stylesheet.h29
6 files changed, 161 insertions, 40 deletions
diff --git a/libstorycode/scparse_priv.h b/libstorycode/scparse_priv.h
index fc73bcb..5812c94 100644
--- a/libstorycode/scparse_priv.h
+++ b/libstorycode/scparse_priv.h
@@ -41,6 +41,7 @@ struct scpctx
/* Frame options */
struct frame_geom geom;
int geom_set;
+ char *font;
};
#endif /* SCPARSE_PRIV_H */
diff --git a/libstorycode/slide.h b/libstorycode/slide.h
index a7574e1..ca67c2a 100644
--- a/libstorycode/slide.h
+++ b/libstorycode/slide.h
@@ -30,28 +30,7 @@
typedef struct _slide Slide;
typedef struct _slideitem SlideItem;
-enum length_unit
-{
- LENGTH_FRAC,
- LENGTH_UNIT
-};
-
-
-struct length
-{
- double len;
- enum length_unit unit;
-};
-
-
-struct frame_geom
-{
- struct length x;
- struct length y;
- struct length w;
- struct length h;
-};
-
+#include "stylesheet.h"
extern Slide *slide_new(void);
extern void slide_free(Slide *s);
diff --git a/libstorycode/slide_render_cairo.c b/libstorycode/slide_render_cairo.c
index b3c8a8f..87ee49a 100644
--- a/libstorycode/slide_render_cairo.c
+++ b/libstorycode/slide_render_cairo.c
@@ -64,21 +64,19 @@ static PangoAlignment to_pangoalignment(enum alignment align)
static void render_text(struct slide_item *item, cairo_t *cr, PangoContext *pc,
- double parent_w, double parent_h)
+ Stylesheet *ss, double parent_w, double parent_h)
{
int i;
double x, y, w, h;
PangoRectangle rect;
+ PangoFontDescription *fontdesc;
x = lcalc(item->geom.x, parent_w);
y = lcalc(item->geom.y, parent_h);
w = lcalc(item->geom.w, parent_w);
h = lcalc(item->geom.h, parent_h);
- cairo_rectangle(cr, x, y, w, h);
- cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
- cairo_set_line_width(cr, 1.0);
- cairo_stroke(cr);
+ fontdesc = pango_font_description_from_string(stylesheet_get_slide_text_font(ss));
if ( item->layouts == NULL ) {
item->layouts = malloc(item->n_paras*sizeof(PangoLayout *));
@@ -100,6 +98,8 @@ static void render_text(struct slide_item *item, cairo_t *cr, PangoContext *pc,
pango_layout_set_alignment(item->layouts[i],
to_pangoalignment(item->align));
+ pango_layout_set_font_description(item->layouts[i], fontdesc);
+
/* FIXME: Handle *bold*, _underline_, /italic/ etc. */
//pango_layout_set_attributes(item->layouts[i], attrs);
//pango_attr_list_unref(attrs);
@@ -119,7 +119,8 @@ static void render_text(struct slide_item *item, cairo_t *cr, PangoContext *pc,
static void render_image(struct slide_item *item, cairo_t *cr,
- ImageStore *is, double parent_w, double parent_h)
+ Stylesheet *ss, ImageStore *is,
+ double parent_w, double parent_h)
{
double x, y, w, h;
double wd, hd;
@@ -168,12 +169,12 @@ int slide_render_cairo(Slide *s, cairo_t *cr, ImageStore *is, Stylesheet *styles
switch ( s->items[i].type ) {
case SLIDE_ITEM_TEXT :
- render_text(&s->items[i], cr, pc,
+ render_text(&s->items[i], cr, pc, stylesheet,
s->logical_w, s->logical_h);
break;
case SLIDE_ITEM_IMAGE :
- render_image(&s->items[i], cr, is,
+ render_image(&s->items[i], cr, stylesheet, is,
s->logical_w, s->logical_h);
break;
diff --git a/libstorycode/storycode.y b/libstorycode/storycode.y
index 9d1e74f..483d0ea 100644
--- a/libstorycode/storycode.y
+++ b/libstorycode/storycode.y
@@ -85,7 +85,6 @@
%type <str> bulletpoint
%type <str> frameopt
%type <geom> geometry
-%type <geom> style_slidesize
%type <len> length
%type <str> slidetitle
%type <character> UNIT
@@ -107,10 +106,12 @@
ctx->str = malloc(ctx->max_str*sizeof(char *));
if ( ctx->str == NULL ) ctx->max_str = 0;
+ style_reset(ctx);
frameopts_reset(ctx);
}
%{
+
void frameopts_reset(struct scpctx *ctx)
{
ctx->geom_set = 0;
@@ -124,6 +125,11 @@ void frameopts_reset(struct scpctx *ctx)
ctx->geom.h.unit = LENGTH_FRAC;
}
+void style_reset(struct scpctx *ctx)
+{
+ ctx->font = NULL;
+}
+
void str_reset(struct scpctx *ctx)
{
ctx->n_str = 0;
@@ -139,6 +145,13 @@ void add_str(struct scpctx *ctx, char *str)
ctx->str[ctx->n_str++] = str;
}
+
+void set_text_style(struct scpctx *ctx)
+{
+ stylesheet_set_slide_text_font(ctx->ss, ctx->font);
+ style_reset(ctx);
+}
+
%}
%%
@@ -281,14 +294,21 @@ style_slide:
style_slide_def:
%empty
-| style_slide_def style_slide_prestitle { printf("slide prestitle\n"); }
-| style_slide_def style_slide_text { printf("slide text\n"); }
-| style_slide_def style_slide_title { printf("slide title\n"); }
-| style_slide_def style_slidesize { printf("slide size\n"); }
+| style_slide_def style_slide_prestitle { }
+| style_slide_def style_slide_text { }
+| style_slide_def style_slide_title { }
+| style_slide_def style_slidesize { }
;
style_slidesize:
- SIZE length TIMES length { $$.w = $2; $$.h = $4; $$.x.len = 0.0; $$.y.len = 0.0; printf("size\n");}
+ SIZE length TIMES length { if ( ($2.unit != LENGTH_UNIT)
+ || ($4.unit != LENGTH_UNIT) )
+ {
+ fprintf(stderr, "Wrong slide size units\n");
+ } else {
+ stylesheet_set_default_slide_size(ctx->ss, $2.len, $4.len);
+ }
+ }
;
style_slide_prestitle:
@@ -300,7 +320,7 @@ style_slide_title:
;
style_slide_text:
- TEXTFRAME OPENBRACE styledefs CLOSEBRACE { printf("slide text style\n"); }
+ TEXTFRAME OPENBRACE styledefs CLOSEBRACE { set_text_style(ctx); }
;
styledefs:
@@ -309,7 +329,7 @@ styledefs:
;
styledef:
- FONT STRING { printf("font def: '%s'\n", $2); }
+ FONT STRING { ctx->font = $2; }
| GEOMETRY STRING { printf("type def: '%s'\n", $2); }
| PAD STRING { printf("pad def: '%s'\n", $2); }
| PARASPACE STRING { printf("align def: '%s'\n", $2); }
diff --git a/libstorycode/stylesheet.c b/libstorycode/stylesheet.c
index 00210ec..2d715a2 100644
--- a/libstorycode/stylesheet.c
+++ b/libstorycode/stylesheet.c
@@ -30,18 +30,82 @@
#include "stylesheet.h"
+struct style
+{
+ struct frame_geom geom;
+ char *font;
+ double fgcol[4]; /* r g b a */
+ double bgcol[4]; /* r g b a */
+ double bgcol2[4]; /* r g b a, if gradient */
+ double paraspace[4]; /* l r t b */
+ double padding[4]; /* l r t b */
+};
+
+
struct _stylesheet
{
- int n_items;
+ struct style narrative;
+
+ double default_slide_w;
+ double default_slide_h;
+ struct style slide_text;
+ struct style slide_prestitle;
+ struct style slide_slidetitle;
};
+static void default_style(struct style *s)
+{
+ s->geom.x.len = 0.0;
+ s->geom.x.unit = LENGTH_FRAC;
+ s->geom.y.len = 0.0;
+ s->geom.y.unit = LENGTH_FRAC;
+ s->geom.w.len = 1.0;
+ s->geom.w.unit = LENGTH_FRAC;
+ s->geom.h.len = 1.0;
+ s->geom.h.unit = LENGTH_FRAC;
+
+ s->font = strdup("Sans 12");
+
+ s->fgcol[0] = 0.0;
+ s->fgcol[1] = 0.0;
+ s->fgcol[2] = 0.0;
+ s->fgcol[3] = 1.0;
+
+ s->bgcol[0] = 1.0;
+ s->bgcol[1] = 1.0;
+ s->bgcol[2] = 1.0;
+ s->bgcol[3] = 1.0;
+
+ s->bgcol2[0] = 1.0;
+ s->bgcol2[1] = 1.0;
+ s->bgcol2[2] = 1.0;
+ s->bgcol2[3] = 1.0;
+
+ s->paraspace[0] = 0.0;
+ s->paraspace[1] = 0.0;
+ s->paraspace[2] = 0.0;
+ s->paraspace[3] = 0.0;
+
+ s->padding[0] = 0.0;
+ s->padding[1] = 0.0;
+ s->padding[2] = 0.0;
+ s->padding[3] = 0.0;
+}
+
+
Stylesheet *stylesheet_new()
{
Stylesheet *s;
s = malloc(sizeof(*s));
if ( s == NULL ) return NULL;
- s->n_items = 0;
+
+ /* Ultimate defaults */
+ default_style(&s->narrative);
+ default_style(&s->slide_text);
+ default_style(&s->slide_prestitle);
+ default_style(&s->slide_slidetitle);
+
return s;
}
@@ -49,3 +113,30 @@ void stylesheet_free(Stylesheet *s)
{
free(s);
}
+
+
+int stylesheet_set_default_slide_size(Stylesheet *s, double w, double h)
+{
+ if ( s == NULL ) return 1;
+ s->default_slide_w = w;
+ s->default_slide_h = h;
+ return 0;
+}
+
+
+int stylesheet_set_slide_text_font(Stylesheet *s, char *font)
+{
+ if ( s == NULL ) return 1;
+ if ( s->slide_text.font != NULL ) {
+ free(s->slide_text.font);
+ }
+ s->slide_text.font = font;
+ return 0;
+}
+
+
+const char *stylesheet_get_slide_text_font(Stylesheet *s)
+{
+ if ( s == NULL ) return NULL;
+ return s->slide_text.font;
+}
diff --git a/libstorycode/stylesheet.h b/libstorycode/stylesheet.h
index f7af223..56a6969 100644
--- a/libstorycode/stylesheet.h
+++ b/libstorycode/stylesheet.h
@@ -29,8 +29,37 @@
typedef struct _stylesheet Stylesheet;
+
+enum length_unit
+{
+ LENGTH_FRAC,
+ LENGTH_UNIT
+};
+
+
+struct length
+{
+ double len;
+ enum length_unit unit;
+};
+
+
+struct frame_geom
+{
+ struct length x;
+ struct length y;
+ struct length w;
+ struct length h;
+};
+
+
extern Stylesheet *stylesheet_new(void);
extern void stylesheet_free(Stylesheet *s);
+extern int stylesheet_set_default_slide_size(Stylesheet *s, double w, double h);
+extern int stylesheet_set_slide_text_font(Stylesheet *s, char *font);
+
+extern const char *stylesheet_get_slide_text_font(Stylesheet *s);
+
#endif /* STYLESHEET_H */