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-rw-r--r--fastiv-browser.c369
1 files changed, 220 insertions, 149 deletions
diff --git a/fastiv-browser.c b/fastiv-browser.c
index feb4ca3..e025d66 100644
--- a/fastiv-browser.c
+++ b/fastiv-browser.c
@@ -41,6 +41,8 @@
struct _FastivBrowser {
GtkWidget parent_instance;
+ FastivIoThumbnailSize item_size; ///< Thumbnail height in pixels
+
GArray *entries; ///< [Entry]
GArray *layouted_rows; ///< [Row]
int selected;
@@ -55,7 +57,6 @@ typedef struct entry Entry;
typedef struct item Item;
typedef struct row Row;
-static const double g_row_height = 256;
static const double g_permitted_width_multiplier = 2;
// Could be split out to also-idiomatic row-spacing/column-spacing properties.
@@ -114,7 +115,7 @@ append_row(FastivBrowser *self, int *y, int x, GArray *items_array)
}));
// Not trying to pack them vertically, but this would be the place to do it.
- *y += g_row_height;
+ *y += (int) self->item_size;
*y += self->item_border_y;
}
@@ -199,13 +200,13 @@ draw_outer_border(FastivBrowser *self, cairo_t *cr, int width, int height)
}
static GdkRectangle
-item_extents(const Item *item, const Row *row)
+item_extents(FastivBrowser *self, const Item *item, const Row *row)
{
int width = cairo_image_surface_get_width(item->entry->thumbnail);
int height = cairo_image_surface_get_height(item->entry->thumbnail);
return (GdkRectangle) {
.x = row->x_offset + item->x_offset,
- .y = row->y_offset + g_row_height - height,
+ .y = row->y_offset + (int) self->item_size - height,
.width = width,
.height = height,
};
@@ -217,7 +218,7 @@ entry_at(FastivBrowser *self, int x, int y)
for (guint i = 0; i < self->layouted_rows->len; i++) {
const Row *row = &g_array_index(self->layouted_rows, Row, i);
for (Item *item = row->items; item->entry; item++) {
- GdkRectangle extents = item_extents(item, row);
+ GdkRectangle extents = item_extents(self, item, row);
if (x >= extents.x &&
y >= extents.y &&
x <= extents.x + extents.width &&
@@ -243,7 +244,7 @@ draw_row(FastivBrowser *self, cairo_t *cr, const Row *row)
gtk_style_context_get_border(style, state, &border);
for (Item *item = row->items; item->entry; item++) {
cairo_save(cr);
- GdkRectangle extents = item_extents(item, row);
+ GdkRectangle extents = item_extents(self, item, row);
cairo_translate(cr, extents.x - border.left, extents.y - border.top);
gtk_style_context_save(style);
@@ -281,6 +282,159 @@ draw_row(FastivBrowser *self, cairo_t *cr, const Row *row)
gtk_style_context_restore(style);
}
+// --- Thumbnails --------------------------------------------------------------
+
+// NOTE: "It is important to note that when an image with an alpha channel is
+// scaled, linear encoded, pre-multiplied component values must be used!"
+static cairo_surface_t *
+rescale_thumbnail(cairo_surface_t *thumbnail, double row_height)
+{
+ if (!thumbnail)
+ return thumbnail;
+
+ int width = cairo_image_surface_get_width(thumbnail);
+ int height = cairo_image_surface_get_height(thumbnail);
+
+ double scale_x = 1;
+ double scale_y = 1;
+ if (width > g_permitted_width_multiplier * height) {
+ scale_x = g_permitted_width_multiplier * row_height / width;
+ scale_y = round(scale_x * height) / height;
+ } else {
+ scale_y = row_height / height;
+ scale_x = round(scale_y * width) / width;
+ }
+ if (scale_x == 1 && scale_y == 1)
+ return thumbnail;
+
+ int projected_width = round(scale_x * width);
+ int projected_height = round(scale_y * height);
+ cairo_surface_t *scaled = cairo_image_surface_create(
+ CAIRO_FORMAT_ARGB32, projected_width, projected_height);
+
+ // pixman can take gamma into account when scaling, unlike Cairo.
+ struct pixman_f_transform xform_floating;
+ struct pixman_transform xform;
+
+ // PIXMAN_a8r8g8b8_sRGB can be used for gamma-correct results,
+ // but it's an incredibly slow transformation
+ pixman_format_code_t format = PIXMAN_a8r8g8b8;
+
+ pixman_image_t *src = pixman_image_create_bits(format, width, height,
+ (uint32_t *) cairo_image_surface_get_data(thumbnail),
+ cairo_image_surface_get_stride(thumbnail));
+ pixman_image_t *dest = pixman_image_create_bits(format,
+ cairo_image_surface_get_width(scaled),
+ cairo_image_surface_get_height(scaled),
+ (uint32_t *) cairo_image_surface_get_data(scaled),
+ cairo_image_surface_get_stride(scaled));
+
+ pixman_f_transform_init_scale(&xform_floating, scale_x, scale_y);
+ pixman_f_transform_invert(&xform_floating, &xform_floating);
+ pixman_transform_from_pixman_f_transform(&xform, &xform_floating);
+ pixman_image_set_transform(src, &xform);
+ pixman_image_set_filter(src, PIXMAN_FILTER_BILINEAR, NULL, 0);
+ pixman_image_set_repeat(src, PIXMAN_REPEAT_PAD);
+
+ pixman_image_composite(PIXMAN_OP_SRC, src, NULL, dest, 0, 0, 0, 0, 0, 0,
+ projected_width, projected_height);
+ pixman_image_unref(src);
+ pixman_image_unref(dest);
+
+ cairo_surface_destroy(thumbnail);
+ cairo_surface_mark_dirty(scaled);
+ return scaled;
+}
+
+static void
+entry_add_thumbnail(gpointer data, gpointer user_data)
+{
+ Entry *self = data;
+ g_clear_object(&self->icon);
+ if (self->thumbnail)
+ cairo_surface_destroy(self->thumbnail);
+
+ FastivIoThumbnailSize size = FASTIV_BROWSER(user_data)->item_size;
+ self->thumbnail = rescale_thumbnail(
+ fastiv_io_lookup_thumbnail(self->filename, size), (int) size);
+ if (self->thumbnail)
+ return;
+
+ // Fall back to symbolic icons, though there's only so much we can do
+ // in parallel--GTK+ isn't thread-safe.
+ GFile *file = g_file_new_for_path(self->filename);
+ GFileInfo *info = g_file_query_info(file,
+ G_FILE_ATTRIBUTE_STANDARD_NAME
+ "," G_FILE_ATTRIBUTE_STANDARD_SYMBOLIC_ICON,
+ G_FILE_QUERY_INFO_NONE, NULL, NULL);
+ g_object_unref(file);
+ if (info) {
+ GIcon *icon = g_file_info_get_symbolic_icon(info);
+ if (icon)
+ self->icon = g_object_ref(icon);
+ g_object_unref(info);
+ }
+}
+
+static void
+materialize_icon(FastivBrowser *self, Entry *entry)
+{
+ if (!entry->icon)
+ return;
+
+ // Fucker will still give us non-symbolic icons, no more playing nice.
+ // TODO(p): Investigate a bit closer. We may want to abandon the idea
+ // of using GLib to look up icons for us, derive a list from a guessed
+ // MIME type, with "-symbolic" prefixes and fallbacks,
+ // and use gtk_icon_theme_choose_icon() instead.
+ // TODO(p): Make sure we have /some/ icon for every entry.
+ // TODO(p): We might want to populate these on an as-needed basis.
+ GtkIconInfo *icon_info = gtk_icon_theme_lookup_by_gicon(
+ gtk_icon_theme_get_default(), entry->icon, (int) self->item_size / 2,
+ GTK_ICON_LOOKUP_FORCE_SYMBOLIC);
+ if (!icon_info)
+ return;
+
+ // Bílá, bílá, bílá, bílá... komu by se nelíbí-lá...
+ // We do not want any highlights, nor do we want to remember the style.
+ const GdkRGBA white = {1, 1, 1, 1};
+ GdkPixbuf *pixbuf = gtk_icon_info_load_symbolic(
+ icon_info, &white, &white, &white, &white, NULL, NULL);
+ if (pixbuf) {
+ int outer_size = (int) self->item_size;
+ entry->thumbnail =
+ cairo_image_surface_create(CAIRO_FORMAT_A8, outer_size, outer_size);
+
+ // "Note that the resulting pixbuf may not be exactly this size;"
+ // though GTK_ICON_LOOKUP_FORCE_SIZE is also an option.
+ int x = (outer_size - gdk_pixbuf_get_width(pixbuf)) / 2;
+ int y = (outer_size - gdk_pixbuf_get_height(pixbuf)) / 2;
+
+ cairo_t *cr = cairo_create(entry->thumbnail);
+ gdk_cairo_set_source_pixbuf(cr, pixbuf, x, y);
+ cairo_paint(cr);
+ cairo_destroy(cr);
+
+ g_object_unref(pixbuf);
+ }
+ g_object_unref(icon_info);
+}
+
+static void
+reload_thumbnails(FastivBrowser *self)
+{
+ GThreadPool *pool = g_thread_pool_new(
+ entry_add_thumbnail, self, g_get_num_processors(), FALSE, NULL);
+ for (guint i = 0; i < self->entries->len; i++)
+ g_thread_pool_push(pool, &g_array_index(self->entries, Entry, i), NULL);
+ g_thread_pool_free(pool, FALSE, TRUE);
+
+ for (guint i = 0; i < self->entries->len; i++)
+ materialize_icon(self, &g_array_index(self->entries, Entry, i));
+
+ gtk_widget_queue_resize(GTK_WIDGET(self));
+}
+
// --- Boilerplate -------------------------------------------------------------
// TODO(p): For proper navigation, we need to implement GtkScrollable.
@@ -289,6 +443,13 @@ G_DEFINE_TYPE_EXTENDED(FastivBrowser, fastiv_browser, GTK_TYPE_WIDGET, 0,
fastiv_browser_scrollable_init) */)
enum {
+ PROP_THUMBNAIL_SIZE = 1,
+ N_PROPERTIES
+};
+
+static GParamSpec *browser_properties[N_PROPERTIES];
+
+enum {
ITEM_ACTIVATED,
LAST_SIGNAL,
};
@@ -308,6 +469,37 @@ fastiv_browser_finalize(GObject *gobject)
G_OBJECT_CLASS(fastiv_browser_parent_class)->finalize(gobject);
}
+static void
+fastiv_browser_get_property(
+ GObject *object, guint property_id, GValue *value, GParamSpec *pspec)
+{
+ FastivBrowser *self = FASTIV_BROWSER(object);
+ switch (property_id) {
+ case PROP_THUMBNAIL_SIZE:
+ g_value_set_enum(value, self->item_size);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);
+ }
+}
+
+static void
+fastiv_browser_set_property(
+ GObject *object, guint property_id, const GValue *value, GParamSpec *pspec)
+{
+ FastivBrowser *self = FASTIV_BROWSER(object);
+ switch (property_id) {
+ case PROP_THUMBNAIL_SIZE:
+ if (g_value_get_enum(value) != (int) self->item_size) {
+ self->item_size = g_value_get_enum(value);
+ reload_thumbnails(self);
+ }
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);
+ }
+}
+
static GtkSizeRequestMode
fastiv_browser_get_request_mode(G_GNUC_UNUSED GtkWidget *widget)
{
@@ -323,7 +515,8 @@ fastiv_browser_get_preferred_width(
GtkBorder padding = {};
gtk_style_context_get_padding(style, GTK_STATE_FLAG_NORMAL, &padding);
- *minimum = *natural = g_permitted_width_multiplier * g_row_height +
+ *minimum = *natural =
+ g_permitted_width_multiplier * (int) self->item_size +
padding.left + 2 * self->item_border_x + padding.right;
}
@@ -401,7 +594,7 @@ fastiv_browser_draw(GtkWidget *widget, cairo_t *cr)
.x = 0,
.y = row->y_offset - self->item_border_y,
.width = allocation.width,
- .height = g_row_height + 2 * self->item_border_y,
+ .height = (int) self->item_size + 2 * self->item_border_y,
};
if (!have_clip || gdk_rectangle_intersect(&clip, &extents, NULL))
draw_row(self, cr, row);
@@ -520,6 +713,19 @@ fastiv_browser_class_init(FastivBrowserClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS(klass);
object_class->finalize = fastiv_browser_finalize;
+ object_class->get_property = fastiv_browser_get_property;
+ object_class->set_property = fastiv_browser_set_property;
+
+ browser_properties[PROP_THUMBNAIL_SIZE] = g_param_spec_enum(
+ "thumbnail-size", "Thumbnail size", "The thumbnail height to use",
+ FASTIV_TYPE_IO_THUMBNAIL_SIZE, FASTIV_IO_THUMBNAIL_SIZE_NORMAL,
+ G_PARAM_READWRITE);
+ g_object_class_install_properties(
+ object_class, N_PROPERTIES, browser_properties);
+
+ browser_signals[ITEM_ACTIVATED] = g_signal_new("item-activated",
+ G_TYPE_FROM_CLASS(klass), 0, 0, NULL, NULL, NULL,
+ G_TYPE_NONE, 2, G_TYPE_STRING, GTK_TYPE_PLACES_OPEN_FLAGS);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(klass);
widget_class->get_request_mode = fastiv_browser_get_request_mode;
@@ -533,10 +739,6 @@ fastiv_browser_class_init(FastivBrowserClass *klass)
widget_class->motion_notify_event = fastiv_browser_motion_notify_event;
widget_class->style_updated = fastiv_browser_style_updated;
- browser_signals[ITEM_ACTIVATED] = g_signal_new("item-activated",
- G_TYPE_FROM_CLASS(klass), 0, 0, NULL, NULL, NULL,
- G_TYPE_NONE, 2, G_TYPE_STRING, GTK_TYPE_PLACES_OPEN_FLAGS);
-
// TODO(p): Later override "screen_changed", recreate Pango layouts there,
// if we get to have any, or otherwise reflect DPI changes.
gtk_widget_class_set_css_name(widget_class, "fastiv-browser");
@@ -552,96 +754,15 @@ fastiv_browser_init(FastivBrowser *self)
self->layouted_rows = g_array_new(FALSE, TRUE, sizeof(Row));
g_array_set_clear_func(self->layouted_rows, (GDestroyNotify) row_free);
+ self->item_size = FASTIV_IO_THUMBNAIL_SIZE_NORMAL;
self->selected = -1;
self->glow = cairo_image_surface_create(CAIRO_FORMAT_A1, 0, 0);
-}
-
-// NOTE: "It is important to note that when an image with an alpha channel is
-// scaled, linear encoded, pre-multiplied component values must be used!"
-static cairo_surface_t *
-rescale_thumbnail(cairo_surface_t *thumbnail)
-{
- if (!thumbnail)
- return thumbnail;
-
- int width = cairo_image_surface_get_width(thumbnail);
- int height = cairo_image_surface_get_height(thumbnail);
-
- double scale_x = 1;
- double scale_y = 1;
- if (width > g_permitted_width_multiplier * height) {
- scale_x = g_permitted_width_multiplier * g_row_height / width;
- scale_y = round(scale_x * height) / height;
- } else {
- scale_y = g_row_height / height;
- scale_x = round(scale_y * width) / width;
- }
- if (scale_x == 1 && scale_y == 1)
- return thumbnail;
-
- int projected_width = round(scale_x * width);
- int projected_height = round(scale_y * height);
- cairo_surface_t *scaled = cairo_image_surface_create(
- CAIRO_FORMAT_ARGB32, projected_width, projected_height);
-
- // pixman can take gamma into account when scaling, unlike Cairo.
- struct pixman_f_transform xform_floating;
- struct pixman_transform xform;
-
- // PIXMAN_a8r8g8b8_sRGB can be used for gamma-correct results,
- // but it's an incredibly slow transformation
- pixman_format_code_t format = PIXMAN_a8r8g8b8;
-
- pixman_image_t *src = pixman_image_create_bits(format, width, height,
- (uint32_t *) cairo_image_surface_get_data(thumbnail),
- cairo_image_surface_get_stride(thumbnail));
- pixman_image_t *dest = pixman_image_create_bits(format,
- cairo_image_surface_get_width(scaled),
- cairo_image_surface_get_height(scaled),
- (uint32_t *) cairo_image_surface_get_data(scaled),
- cairo_image_surface_get_stride(scaled));
- pixman_f_transform_init_scale(&xform_floating, scale_x, scale_y);
- pixman_f_transform_invert(&xform_floating, &xform_floating);
- pixman_transform_from_pixman_f_transform(&xform, &xform_floating);
- pixman_image_set_transform(src, &xform);
- pixman_image_set_filter(src, PIXMAN_FILTER_BILINEAR, NULL, 0);
- pixman_image_set_repeat(src, PIXMAN_REPEAT_PAD);
-
- pixman_image_composite(PIXMAN_OP_SRC, src, NULL, dest, 0, 0, 0, 0, 0, 0,
- projected_width, projected_height);
- pixman_image_unref(src);
- pixman_image_unref(dest);
-
- cairo_surface_destroy(thumbnail);
- cairo_surface_mark_dirty(scaled);
- return scaled;
+ g_signal_connect_swapped(gtk_settings_get_default(),
+ "notify::gtk-icon-theme-name", G_CALLBACK(reload_thumbnails), self);
}
-static void
-entry_add_thumbnail(gpointer data, G_GNUC_UNUSED gpointer user_data)
-{
- Entry *self = data;
- self->thumbnail =
- rescale_thumbnail(fastiv_io_lookup_thumbnail(self->filename));
- if (self->thumbnail)
- return;
-
- // Fall back to symbolic icons, though there's only so much we can do
- // in parallel--GTK+ isn't thread-safe.
- GFile *file = g_file_new_for_path(self->filename);
- GFileInfo *info = g_file_query_info(file,
- G_FILE_ATTRIBUTE_STANDARD_NAME
- "," G_FILE_ATTRIBUTE_STANDARD_SYMBOLIC_ICON,
- G_FILE_QUERY_INFO_NONE, NULL, NULL);
- g_object_unref(file);
- if (info) {
- GIcon *icon = g_file_info_get_symbolic_icon(info);
- if (icon)
- self->icon = g_object_ref(icon);
- g_object_unref(info);
- }
-}
+// --- Public interface --------------------------------------------------------
void
fastiv_browser_load(
@@ -676,56 +797,6 @@ fastiv_browser_load(
}
g_object_unref(enumerator);
- GThreadPool *pool = g_thread_pool_new(
- entry_add_thumbnail, NULL, g_get_num_processors(), FALSE, NULL);
- for (guint i = 0; i < self->entries->len; i++)
- g_thread_pool_push(pool, &g_array_index(self->entries, Entry, i), NULL);
- g_thread_pool_free(pool, FALSE, TRUE);
-
- for (guint i = 0; i < self->entries->len; i++) {
- Entry *entry = &g_array_index(self->entries, Entry, i);
- if (!entry->icon)
- continue;
-
- // Fucker will still give us non-symbolic icons, no more playing nice.
- // TODO(p): Investigate a bit closer. We may want to abandon the idea
- // of using GLib to look up icons for us, derive a list from a guessed
- // MIME type, with "-symbolic" prefixes and fallbacks,
- // and use gtk_icon_theme_choose_icon() instead.
- // TODO(p): Make sure we have /some/ icon for every entry.
- // TODO(p): GtkSettings -> notify::gtk-icon-theme-name?
- // TODO(p): We might want to populate these on an as-needed basis.
- GtkIconInfo *icon_info =
- gtk_icon_theme_lookup_by_gicon(gtk_icon_theme_get_default(),
- entry->icon, g_row_height / 2, GTK_ICON_LOOKUP_FORCE_SYMBOLIC);
- if (!icon_info)
- continue;
-
- // Bílá, bílá, bílá, bílá... komu by se nelíbí-lá...
- // We do not want any highlights, nor do we want to remember the style.
- const GdkRGBA white = {1, 1, 1, 1};
- GdkPixbuf *pixbuf = gtk_icon_info_load_symbolic(
- icon_info, &white, &white, &white, &white, NULL, NULL);
- if (pixbuf) {
- int outer_size = g_row_height;
- entry->thumbnail = cairo_image_surface_create(
- CAIRO_FORMAT_A8, outer_size, outer_size);
-
- // "Note that the resulting pixbuf may not be exactly this size;"
- // though GTK_ICON_LOOKUP_FORCE_SIZE is also an option.
- int x = (outer_size - gdk_pixbuf_get_width(pixbuf)) / 2;
- int y = (outer_size - gdk_pixbuf_get_height(pixbuf)) / 2;
-
- cairo_t *cr = cairo_create(entry->thumbnail);
- gdk_cairo_set_source_pixbuf(cr, pixbuf, x, y);
- cairo_paint(cr);
- cairo_destroy(cr);
-
- g_object_unref(pixbuf);
- }
- g_object_unref(icon_info);
- }
-
- // TODO(p): Sort and filter the entries.
- gtk_widget_queue_resize(GTK_WIDGET(self));
+ // TODO(p): Sort the entries before.
+ reload_thumbnails(self);
}