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Make Ctrl-scrolling change thumbnail size

This commit is contained in:
Přemysl Eric Janouch 2021-11-22 15:33:08 +01:00
parent e663368ee4
commit e239aca6f4
Signed by: p
GPG Key ID: A0420B94F92B9493
1 changed files with 44 additions and 8 deletions
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52
fastiv-browser.c
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@ -482,6 +482,23 @@ fastiv_browser_get_property(
}
}
static void
set_item_size(FastivBrowser *self, FastivIoThumbnailSize size)
{
if (size < FASTIV_IO_THUMBNAIL_SIZE_MIN ||
size > FASTIV_IO_THUMBNAIL_SIZE_MAX)
return;
if (size != self->item_size) {
self->item_size = size;
self->item_height = fastiv_io_thumbnail_sizes[self->item_size].size;
reload_thumbnails(self);
g_object_notify_by_pspec(
G_OBJECT(self), browser_properties[PROP_THUMBNAIL_SIZE]);
}
}
static void
fastiv_browser_set_property(
GObject *object, guint property_id, const GValue *value, GParamSpec *pspec)
@ -489,11 +506,7 @@ fastiv_browser_set_property(
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);
self->item_height = fastiv_io_thumbnail_sizes[self->item_size].size;
reload_thumbnails(self);
}
set_item_size(self, g_value_get_enum(value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);
@ -547,7 +560,8 @@ fastiv_browser_realize(GtkWidget *widget)
.visual = gtk_widget_get_visual(widget),
.event_mask = gtk_widget_get_events(widget) | GDK_KEY_PRESS_MASK |
GDK_POINTER_MOTION_MASK | GDK_BUTTON_PRESS_MASK,
GDK_POINTER_MOTION_MASK | GDK_BUTTON_PRESS_MASK |
GDK_SCROLL_MASK,
};
// We need this window to receive input events at all.
@ -649,6 +663,28 @@ fastiv_browser_motion_notify_event(GtkWidget *widget, GdkEventMotion *event)
return TRUE;
}
static gboolean
fastiv_browser_scroll_event(GtkWidget *widget, GdkEventScroll *event)
{
FastivBrowser *self = FASTIV_BROWSER(widget);
if ((event->state & gtk_accelerator_get_default_mod_mask()) !=
GDK_CONTROL_MASK)
return FALSE;
switch (event->direction) {
case GDK_SCROLL_UP:
set_item_size(self, self->item_size + 1);
return TRUE;
case GDK_SCROLL_DOWN:
set_item_size(self, self->item_size - 1);
return TRUE;
default:
// For some reason, we can also get GDK_SCROLL_SMOOTH.
// Left/right are good to steal from GtkScrolledWindow for consistency.
return TRUE;
}
}
static gboolean
fastiv_browser_query_tooltip(GtkWidget *widget, gint x, gint y,
G_GNUC_UNUSED gboolean keyboard_tooltip, GtkTooltip *tooltip)
@ -766,6 +802,7 @@ fastiv_browser_class_init(FastivBrowserClass *klass)
widget_class->size_allocate = fastiv_browser_size_allocate;
widget_class->button_press_event = fastiv_browser_button_press_event;
widget_class->motion_notify_event = fastiv_browser_motion_notify_event;
widget_class->scroll_event = fastiv_browser_scroll_event;
widget_class->query_tooltip = fastiv_browser_query_tooltip;
widget_class->style_updated = fastiv_browser_style_updated;
@ -791,8 +828,7 @@ 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->item_height = fastiv_io_thumbnail_sizes[self->item_size].size;
set_item_size(self, FASTIV_IO_THUMBNAIL_SIZE_NORMAL);
self->selected = -1;
self->glow = cairo_image_surface_create(CAIRO_FORMAT_A1, 0, 0);