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Split eek_renderer_render_key to e_r_r_key_label and e_r_r_key_outline.

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This commit is contained in:
Daiki Ueno
2011-01-25 10:38:56 +09:00
parent fe101ff0e8
commit 9e5fa977a5
3 changed files with 283 additions and 128 deletions
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371
eek/eek-renderer.c
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@ -4,6 +4,13 @@
#include "eek-section.h"
#include "eek-renderer.h"
enum {
PROP_0,
PROP_KEYBOARD,
PROP_PCONTEXT,
PROP_LAST
};
G_DEFINE_TYPE (EekRenderer, eek_renderer, G_TYPE_OBJECT);
#define EEK_RENDERER_GET_PRIVATE(obj) \
@ -34,15 +41,23 @@ struct {
};
/* eek-keyboard-drawing.c */
extern void _eek_rounded_polygon (cairo_t *cr,
gdouble radius,
EekPoint *points,
gint num_points);
extern void _eek_rounded_polygon (cairo_t *cr,
gdouble radius,
EekPoint *points,
gint num_points);
static void invalidate (EekRenderer *renderer);
static void render_key (EekRenderer *self,
cairo_t *cr,
EekKey *key);
static void eek_renderer_real_render_key_label (EekRenderer *self,
PangoLayout *layout,
EekKey *key);
static void invalidate (EekRenderer *renderer);
static void render_key (EekRenderer *self,
cairo_t *cr,
EekKey *key);
static void on_keysym_index_changed (EekKeyboard *keyboard,
gint group,
gint level,
gpointer user_data);
struct _CreateKeyboardSurfaceCallbackData {
cairo_t *cr;
@ -295,70 +310,6 @@ calculate_font_size (EekRenderer *renderer)
return data.size;
}
static void
render_key_label (EekRenderer *renderer,
cairo_t *cr,
EekKey *key)
{
EekRendererPrivate *priv = EEK_RENDERER_GET_PRIVATE(renderer);
guint keysym;
EekKeysymCategory category;
gchar *label;
PangoLayout *layout;
PangoRectangle extents = { 0, };
EekBounds bounds;
PangoFontDescription *font;
gdouble size, scale;
gint i;
keysym = eek_key_get_keysym (key);
if (keysym == EEK_INVALID_KEYSYM)
return;
category = eek_keysym_get_category (keysym);
if (category == EEK_KEYSYM_CATEGORY_UNKNOWN)
return;
label = eek_keysym_to_string (keysym);
if (!label)
return;
eek_element_get_bounds (EEK_ELEMENT(key), &bounds);
scale = MIN((bounds.width - priv->border_width) / bounds.width,
(bounds.height - priv->border_width) / bounds.height);
layout = pango_cairo_create_layout (cr);
font = pango_font_description_copy (priv->font);
size = pango_font_description_get_size (font);
for (i = 0; i < G_N_ELEMENTS(keysym_category_scale_factors); i++)
if (keysym_category_scale_factors[i].category == category) {
size *= keysym_category_scale_factors[i].scale;
break;
}
pango_font_description_set_size (font, size * priv->scale * scale);
pango_layout_set_font_description (layout, font);
pango_layout_set_text (layout, label, -1);
g_free (label);
pango_layout_set_width (layout,
PANGO_SCALE * bounds.width * priv->scale * scale);
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END);
pango_layout_get_extents (layout, NULL, &extents);
cairo_save (cr);
cairo_move_to
(cr,
(bounds.width * priv->scale - extents.width / PANGO_SCALE) / 2,
(bounds.height * priv->scale - extents.height / PANGO_SCALE) / 2);
cairo_set_source_rgba (cr,
priv->foreground->red,
priv->foreground->green,
priv->foreground->blue,
priv->foreground->alpha);
pango_cairo_show_layout (cr, layout);
cairo_restore (cr);
g_object_unref (layout);
}
static void
render_key (EekRenderer *self,
cairo_t *cr,
@ -368,7 +319,10 @@ render_key (EekRenderer *self,
EekOutline *outline;
cairo_surface_t *outline_surface;
EekBounds bounds;
PangoLayout *layout;
PangoRectangle extents = { 0, };
eek_element_get_bounds (EEK_ELEMENT(key), &bounds);
outline = eek_key_get_outline (key);
outline_surface = g_hash_table_lookup (priv->outline_surface_cache,
@ -376,7 +330,6 @@ render_key (EekRenderer *self,
if (!outline_surface) {
cairo_t *cr;
eek_element_get_bounds (EEK_ELEMENT(key), &bounds);
outline_surface =
cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
bounds.width * priv->scale,
@ -400,27 +353,34 @@ render_key (EekRenderer *self,
outline_surface);
}
if (!priv->font) {
PangoFontDescription *base_font;
gdouble size;
size = calculate_font_size (self);
base_font = pango_context_get_font_description (priv->pcontext);
priv->font = pango_font_description_copy (base_font);
pango_font_description_set_size (priv->font, size);
}
cairo_set_source_surface (cr, outline_surface, 0.0, 0.0);
cairo_paint (cr);
render_key_label (self, cr, key);
layout = pango_cairo_create_layout (cr);
eek_renderer_real_render_key_label (self, layout, key);
pango_layout_get_extents (layout, NULL, &extents);
cairo_save (cr);
cairo_move_to
(cr,
(bounds.width * priv->scale - extents.width / PANGO_SCALE) / 2,
(bounds.height * priv->scale - extents.height / PANGO_SCALE) / 2);
cairo_set_source_rgba (cr,
priv->foreground->red,
priv->foreground->green,
priv->foreground->blue,
priv->foreground->alpha);
pango_cairo_show_layout (cr, layout);
cairo_restore (cr);
g_object_unref (layout);
}
static void
eek_renderer_real_render_key (EekRenderer *self,
cairo_t *cr,
EekKey *key,
gdouble scale)
prepare_render_key (EekRenderer *self,
cairo_t *cr,
EekKey *key,
gdouble scale,
gboolean rotate)
{
EekElement *section;
EekBounds bounds, rotated_bounds;
@ -433,28 +393,95 @@ eek_renderer_real_render_key (EekRenderer *self,
section = eek_element_get_parent (EEK_ELEMENT(key));
angle = eek_section_get_angle (EEK_SECTION(section));
cairo_save (cr);
cairo_scale (cr, scale, scale);
#if DEBUG
cairo_set_source_rgba (cr, 1.0, 0.0, 0.0, 1.0);
cairo_rectangle (cr, 0, 0,
rotated_bounds.width, rotated_bounds.height);
cairo_stroke (cr);
cairo_set_source_rgba (cr, 0.0, 1.0, 0.0, 1.0);
#endif /* DEBUG */
s = sin (angle * G_PI / 180);
if (s < 0)
cairo_translate (cr, 0, - bounds.width * s);
else
cairo_translate (cr, bounds.height * s, 0);
cairo_rotate (cr, angle * G_PI / 180);
#if DEBUG
cairo_rectangle (cr,
0,
0,
bounds.width, bounds.height);
cairo_stroke (cr);
#endif /* DEBUG */
if (rotate) {
s = sin (angle * G_PI / 180);
if (s < 0)
cairo_translate (cr, 0, - bounds.width * s);
else
cairo_translate (cr, bounds.height * s, 0);
cairo_rotate (cr, angle * G_PI / 180);
}
}
static void
eek_renderer_real_render_key_label (EekRenderer *self,
PangoLayout *layout,
EekKey *key)
{
EekRendererPrivate *priv = EEK_RENDERER_GET_PRIVATE(self);
guint keysym;
EekKeysymCategory category;
gchar *label;
EekBounds bounds;
PangoFontDescription *font;
gdouble size, scale;
gint i;
keysym = eek_key_get_keysym (key);
if (keysym == EEK_INVALID_KEYSYM)
return;
category = eek_keysym_get_category (keysym);
if (category == EEK_KEYSYM_CATEGORY_UNKNOWN)
return;
label = eek_keysym_to_string (keysym);
if (!label)
return;
if (!priv->font) {
PangoFontDescription *base_font;
gdouble size;
size = calculate_font_size (self);
base_font = pango_context_get_font_description (priv->pcontext);
priv->font = pango_font_description_copy (base_font);
pango_font_description_set_size (priv->font, size);
}
eek_element_get_bounds (EEK_ELEMENT(key), &bounds);
scale = MIN((bounds.width - priv->border_width) / bounds.width,
(bounds.height - priv->border_width) / bounds.height);
font = pango_font_description_copy (priv->font);
size = pango_font_description_get_size (font);
for (i = 0; i < G_N_ELEMENTS(keysym_category_scale_factors); i++)
if (keysym_category_scale_factors[i].category == category) {
size *= keysym_category_scale_factors[i].scale;
break;
}
pango_font_description_set_size (font, size * priv->scale * scale);
pango_layout_set_font_description (layout, font);
pango_layout_set_text (layout, label, -1);
g_free (label);
pango_layout_set_width (layout,
PANGO_SCALE * bounds.width * priv->scale * scale);
pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END);
}
static void
eek_renderer_real_render_key_outline (EekRenderer *self,
cairo_t *cr,
EekKey *key,
gdouble scale,
gboolean rotate)
{
cairo_save (cr);
prepare_render_key (self, cr, key, scale, rotate);
render_key_outline (self, cr, key);
cairo_restore (cr);
}
static void
eek_renderer_real_render_key (EekRenderer *self,
cairo_t *cr,
EekKey *key,
gdouble scale,
gboolean rotate)
{
cairo_save (cr);
prepare_render_key (self, cr, key, scale, rotate);
render_key (self, cr, key);
cairo_restore (cr);
}
@ -472,6 +499,29 @@ eek_renderer_real_render_keyboard (EekRenderer *self,
cairo_paint (cr);
}
static void
eek_renderer_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
EekRendererPrivate *priv = EEK_RENDERER_GET_PRIVATE(object);
switch (prop_id) {
case PROP_KEYBOARD:
priv->keyboard = g_value_get_object (value);
g_object_ref_sink (priv->keyboard);
g_signal_connect (priv->keyboard, "keysym-index-changed",
G_CALLBACK(on_keysym_index_changed),
object);
break;
case PROP_PCONTEXT:
priv->pcontext = g_value_get_object (value);
g_object_ref (priv->pcontext);
break;
}
}
static void
eek_renderer_dispose (GObject *object)
{
@ -506,15 +556,37 @@ static void
eek_renderer_class_init (EekRendererClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GParamSpec *pspec;
g_type_class_add_private (gobject_class,
sizeof (EekRendererPrivate));
klass->render_key_label = eek_renderer_real_render_key_label;
klass->render_key_outline = eek_renderer_real_render_key_outline;
klass->render_key = eek_renderer_real_render_key;
klass->render_keyboard = eek_renderer_real_render_keyboard;
gobject_class->set_property = eek_renderer_set_property;
gobject_class->dispose = eek_renderer_dispose;
gobject_class->finalize = eek_renderer_finalize;
pspec = g_param_spec_object ("keyboard",
"Keyboard",
"Keyboard",
EEK_TYPE_KEYBOARD,
G_PARAM_WRITABLE);
g_object_class_install_property (gobject_class,
PROP_KEYBOARD,
pspec);
pspec = g_param_spec_object ("pango-context",
"Pango Context",
"Pango Context",
PANGO_TYPE_CONTEXT,
G_PARAM_WRITABLE);
g_object_class_install_property (gobject_class,
PROP_PCONTEXT,
pspec);
}
static void
@ -573,16 +645,11 @@ eek_renderer_new (EekKeyboard *keyboard,
PangoContext *pcontext)
{
EekRenderer *renderer;
EekRendererPrivate *priv;
renderer = g_object_new (EEK_TYPE_RENDERER, NULL);
priv = EEK_RENDERER_GET_PRIVATE(renderer);
priv->keyboard = g_object_ref_sink (keyboard);
priv->pcontext = g_object_ref (pcontext);
g_signal_connect (keyboard, "keysym-index-changed",
G_CALLBACK(on_keysym_index_changed),
renderer);
renderer = g_object_new (EEK_TYPE_RENDERER,
"keyboard", keyboard,
"pango-context", pcontext,
NULL);
return renderer;
}
@ -611,6 +678,25 @@ eek_renderer_set_allocation_size (EekRenderer *renderer,
}
}
void
eek_renderer_get_size (EekRenderer *renderer,
gdouble *width,
gdouble *height)
{
EekRendererPrivate *priv;
EekBounds bounds;
g_return_if_fail (EEK_IS_RENDERER(renderer));
priv = EEK_RENDERER_GET_PRIVATE(renderer);
eek_element_get_bounds (EEK_ELEMENT(priv->keyboard), &bounds);
if (width)
*width = bounds.width * priv->scale;
if (height)
*height = bounds.height * priv->scale;
}
void
eek_renderer_get_key_bounds (EekRenderer *renderer,
EekKey *key,
@ -692,16 +778,61 @@ eek_renderer_get_scale (EekRenderer *renderer)
return priv->scale;
}
PangoLayout *
eek_renderer_create_pango_layout (EekRenderer *renderer)
{
EekRendererPrivate *priv;
g_assert (EEK_IS_RENDERER(renderer));
priv = EEK_RENDERER_GET_PRIVATE(renderer);
return pango_layout_new (priv->pcontext);
}
void
eek_renderer_render_key_label (EekRenderer *renderer,
PangoLayout *layout,
EekKey *key)
{
g_return_if_fail (EEK_IS_RENDERER(renderer));
g_return_if_fail (EEK_IS_KEY(key));
EEK_RENDERER_GET_CLASS(renderer)->
render_key_label (renderer, layout, key);
}
void
eek_renderer_render_key_outline (EekRenderer *renderer,
cairo_t *cr,
EekKey *key,
gdouble scale,
gboolean rotate)
{
g_return_if_fail (EEK_IS_RENDERER(renderer));
g_return_if_fail (EEK_IS_KEY(key));
g_return_if_fail (scale >= 0.0);
EEK_RENDERER_GET_CLASS(renderer)->render_key_outline (renderer,
cr,
key,
scale,
rotate);
}
void
eek_renderer_render_key (EekRenderer *renderer,
cairo_t *cr,
EekKey *key,
gdouble scale)
gdouble scale,
gboolean rotate)
{
g_return_if_fail (EEK_IS_RENDERER(renderer));
g_return_if_fail (EEK_IS_KEY(key));
g_return_if_fail (scale >= 0.0);
EEK_RENDERER_GET_CLASS(renderer)->render_key (renderer, cr, key, scale);
EEK_RENDERER_GET_CLASS(renderer)->
render_key (renderer, cr, key, scale, rotate);
}
void