/* -*- mode: C; c-basic-offset: 2; indent-tabs-mode: nil; -*- */ /* big-box.c: Box container. Copyright (C) 2006-2008 Red Hat, Inc. Copyright (C) 2008-2009 litl, LLC. The libbigwidgets-lgpl is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The libbigwidgets-lgpl 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the libbigwidgets-lgpl; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include #include #include #include #include "big-enum-types.h" #include "box.h" #include "theme-image.h" #include "rectangle.h" static void clutter_container_iface_init (ClutterContainerIface *iface); G_DEFINE_TYPE_WITH_CODE (BigBox, big_box, CLUTTER_TYPE_ACTOR, G_IMPLEMENT_INTERFACE (CLUTTER_TYPE_CONTAINER, clutter_container_iface_init)); #define BIG_BOX_GET_PRIVATE(obj) \ (G_TYPE_INSTANCE_GET_PRIVATE ((obj), BIG_TYPE_BOX, BigBoxPrivate)) #define BOX_CHILD_IS_VISIBLE(c) \ (CLUTTER_ACTOR_IS_VISIBLE (c->actor)) #define BOX_CHILD_IN_LAYOUT(c) \ (!c->fixed && (BOX_CHILD_IS_VISIBLE (c) || c->if_hidden)) enum { PROP_0, PROP_ORIENTATION, PROP_SPACING, PROP_X_ALIGN, PROP_Y_ALIGN, PROP_PADDING, PROP_PADDING_TOP, PROP_PADDING_BOTTOM, PROP_PADDING_LEFT, PROP_PADDING_RIGHT, PROP_BORDER, PROP_BORDER_TOP, PROP_BORDER_BOTTOM, PROP_BORDER_LEFT, PROP_BORDER_RIGHT, PROP_CORNER_RADIUS, PROP_BACKGROUND_BORDER_TOP, PROP_BACKGROUND_BORDER_BOTTOM, PROP_BACKGROUND_BORDER_LEFT, PROP_BACKGROUND_BORDER_RIGHT, PROP_BACKGROUND_COLOR, PROP_BACKGROUND_FILENAME, PROP_BACKGROUND_PIXBUF, PROP_BACKGROUND_TEXTURE, PROP_BACKGROUND_RECTANGLE, PROP_BACKGROUND_REPEAT, PROP_BACKGROUND_X_ALIGN, PROP_BACKGROUND_Y_ALIGN, PROP_BORDER_COLOR, PROP_DEBUG }; struct _BigBoxPrivate { GList *children; BigBoxOrientation orientation; BigBoxAlignment x_align; BigBoxAlignment y_align; int spacing; int padding_top; int padding_bottom; int padding_left; int padding_right; int border_top; int border_bottom; int border_left; int border_right; int corner_radius; ClutterColor border_color; guint background_border_top; guint background_border_bottom; guint background_border_left; guint background_border_right; ClutterColor background_color; ClutterActor *background_texture; BigBoxBackgroundRepeat background_repeat; BigBoxAlignment background_x_align; BigBoxAlignment background_y_align; ClutterActor *background_rectangle; guint draw_rounded_corner : 1; guint debug : 1; }; typedef struct { ClutterActor *actor; guint expand : 1; guint end : 1; guint if_fits : 1; guint fixed : 1; guint if_hidden : 1; /* BigBoxAlignment applies if fixed=true */ guint fixed_x_align : 3; guint fixed_y_align : 3; } BigBoxChild; typedef struct { int minimum; int natural; int adjustment; guint does_not_fit : 1; } BigBoxAdjustInfo; static gboolean box_child_set_flags (BigBoxChild *c, BigBoxPackFlags flags) { BigBoxPackFlags old; old = 0; if (c->end) old |= BIG_BOX_PACK_END; if (c->expand) old |= BIG_BOX_PACK_EXPAND; if (c->if_fits) old |= BIG_BOX_PACK_IF_FITS; if (c->fixed) old |= BIG_BOX_PACK_FIXED; if (c->if_hidden) old |= BIG_BOX_PACK_ALLOCATE_WHEN_HIDDEN; if (old == flags) return FALSE; /* no change */ c->expand = (flags & BIG_BOX_PACK_EXPAND) != 0; c->end = (flags & BIG_BOX_PACK_END) != 0; c->if_fits = (flags & BIG_BOX_PACK_IF_FITS) != 0; c->fixed = (flags & BIG_BOX_PACK_FIXED) != 0; c->if_hidden = (flags & BIG_BOX_PACK_ALLOCATE_WHEN_HIDDEN) != 0; return TRUE; } static gboolean box_child_set_align (BigBoxChild *c, BigBoxAlignment fixed_x_align, BigBoxAlignment fixed_y_align) { if (fixed_x_align == c->fixed_x_align && fixed_y_align == c->fixed_y_align) return FALSE; c->fixed_x_align = fixed_x_align; c->fixed_y_align = fixed_y_align; return TRUE; } static BigBoxChild * box_child_find (BigBox *box, ClutterActor *actor) { GList *c; for (c = box->priv->children; c != NULL; c = c->next) { BigBoxChild *child = c->data; if (child->actor == actor) return (BigBoxChild *) child; } return NULL; } static BigBoxChild * box_child_new_from_actor (ClutterActor *child, BigBoxPackFlags flags) { BigBoxChild *c; c = g_new0 (BigBoxChild, 1); g_object_ref (child); c->actor = child; box_child_set_flags (c, flags); return c; } static void box_child_free (BigBoxChild *c) { g_object_unref (c->actor); g_free (c); } static void box_child_remove (BigBox *box, BigBoxChild *child) { BigBoxPrivate *priv = box->priv; priv->children = g_list_remove (priv->children, child); clutter_actor_unparent (child->actor); /* at this point, the actor passed to the "actor-removed" signal * handlers is not parented anymore to the container but since we * are holding a reference on it, it's still valid */ g_signal_emit_by_name (box, "actor-removed", child->actor); box_child_free (child); } static void big_box_real_add (ClutterContainer *container, ClutterActor *child) { big_box_append (BIG_BOX (container), child, BIG_BOX_PACK_FIXED); } static void big_box_real_remove (ClutterContainer *container, ClutterActor *child) { BigBox *box = BIG_BOX (container); BigBoxChild *c; g_object_ref (child); c = box_child_find (box, child); if (c != NULL) { box_child_remove (box, c); clutter_actor_queue_relayout (CLUTTER_ACTOR (box)); } g_object_unref (child); } static void big_box_real_foreach (ClutterContainer *container, ClutterCallback callback, gpointer user_data) { BigBox *group = BIG_BOX (container); BigBoxPrivate *priv = group->priv; GList *l; for (l = priv->children; l; l = l->next) { BigBoxChild *c = (BigBoxChild *) l->data; (* callback) (c->actor, user_data); } } static void big_box_real_foreach_with_internals (ClutterContainer *container, ClutterCallback callback, gpointer user_data) { BigBox *group = BIG_BOX (container); BigBoxPrivate *priv = group->priv; big_box_real_foreach (container, callback, user_data); if (priv->background_texture) (* callback) (priv->background_texture, user_data); if (priv->background_rectangle) (* callback) (priv->background_rectangle, user_data); } static void big_box_real_raise (ClutterContainer *container, ClutterActor *child, ClutterActor *sibling) { BigBox *box = BIG_BOX (container); BigBoxPrivate *priv = box->priv; BigBoxChild *c; c = box_child_find (box, child); /* Child not found */ if (c == NULL) return; /* We only do raise for children not in the layout */ if (!c->fixed) return; priv->children = g_list_remove (priv->children, c); /* Raise at the top */ if (!sibling) { GList *last_item; last_item = g_list_last (priv->children); if (last_item) { BigBoxChild *sibling_child = last_item->data; sibling = sibling_child->actor; } priv->children = g_list_append (priv->children, c); } else { BigBoxChild *sibling_child; gint pos; sibling_child = box_child_find (box, sibling); pos = g_list_index (priv->children, sibling_child) + 1; priv->children = g_list_insert (priv->children, c, pos); } if (sibling && clutter_actor_get_depth (sibling) != clutter_actor_get_depth (child)) { clutter_actor_set_depth (child, clutter_actor_get_depth (sibling)); } } static void big_box_real_lower (ClutterContainer *container, ClutterActor *child, ClutterActor *sibling) { BigBox *box = BIG_BOX (container); BigBoxPrivate *priv = box->priv; BigBoxChild *c; c = box_child_find (box, child); /* Child not found */ if (c == NULL) return; /* We only do lower for children not in the layout */ if (!c->fixed) return; priv->children = g_list_remove (priv->children, c); /* Push to bottom */ if (!sibling) { GList *first_item; first_item = g_list_first (priv->children); if (first_item) { BigBoxChild *sibling_child = first_item->data; sibling = sibling_child->actor; } priv->children = g_list_prepend (priv->children, c); } else { BigBoxChild *sibling_child; gint pos; sibling_child = box_child_find (box, sibling); pos = g_list_index (priv->children, sibling_child); priv->children = g_list_insert (priv->children, c, pos); } if (sibling && clutter_actor_get_depth (sibling) != clutter_actor_get_depth (child)) { clutter_actor_set_depth (child, clutter_actor_get_depth (sibling)); } } static int sort_z_order (gconstpointer a, gconstpointer b) { const BigBoxChild *child_a = a; const BigBoxChild *child_b = b; int depth_a, depth_b; /* Depth of non-fixed children is ignored in stacking/painting order and they * are considered to be at depth=0. Though when the children are painting * themselves the depth translation is applied. */ depth_a = child_a->fixed ? clutter_actor_get_depth (child_a->actor) : 0; depth_b = child_b->fixed ? clutter_actor_get_depth (child_b->actor) : 0; return depth_a - depth_b; } static void big_box_real_sort_depth_order (ClutterContainer *container) { BigBox *box = BIG_BOX (container); BigBoxPrivate *priv = box->priv; priv->children = g_list_sort (priv->children, sort_z_order); if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR (box))) clutter_actor_queue_redraw (CLUTTER_ACTOR (box)); } static void clutter_container_iface_init (ClutterContainerIface *iface) { iface->add = big_box_real_add; iface->remove = big_box_real_remove; iface->foreach = big_box_real_foreach; iface->foreach_with_internals = big_box_real_foreach_with_internals; iface->raise = big_box_real_raise; iface->lower = big_box_real_lower; iface->sort_depth_order = big_box_real_sort_depth_order; } static void big_box_get_bg_texture_allocation (ClutterActor *self, int allocated_width, int allocated_height, ClutterActorBox *bg_box) { BigBoxPrivate *priv; float bg_width, bg_height; int min_x1, min_y1, max_x2, max_y2; g_return_if_fail (BIG_IS_BOX (self)); priv = BIG_BOX (self)->priv; clutter_actor_get_preferred_width (priv->background_texture, -1, NULL, &bg_width); clutter_actor_get_preferred_height (priv->background_texture, bg_width, NULL, &bg_height); min_x1 = priv->border_left; max_x2 = allocated_width - priv->border_right; switch (priv->background_x_align) { case BIG_BOX_ALIGNMENT_FIXED: g_warning("Must specify a real alignment for background, not FIXED"); break; case BIG_BOX_ALIGNMENT_FILL: bg_box->x1 = min_x1; bg_box->x2 = max_x2; break; case BIG_BOX_ALIGNMENT_START: bg_box->x1 = min_x1; bg_box->x2 = MIN (bg_box->x1 + bg_width, max_x2); break; case BIG_BOX_ALIGNMENT_END: bg_box->x1 = MAX (min_x1, max_x2 - bg_width); bg_box->x2 = max_x2; break; case BIG_BOX_ALIGNMENT_CENTER: bg_box->x1 = MAX (min_x1, priv->border_left + (allocated_width - bg_width) / 2); bg_box->x2 = MIN (bg_box->x1 + bg_width, max_x2); break; } min_y1 = priv->border_top; max_y2 = allocated_height - priv->border_bottom; switch (priv->background_y_align) { case BIG_BOX_ALIGNMENT_FIXED: g_warning("Must specify a real alignment for background, not FIXED"); break; case BIG_BOX_ALIGNMENT_FILL: bg_box->y1 = min_y1; bg_box->y2 = max_y2; break; case BIG_BOX_ALIGNMENT_START: bg_box->y1 = min_y1; bg_box->y2 = MIN (bg_box->y1 + bg_height, max_y2); break; case BIG_BOX_ALIGNMENT_END: bg_box->y1 = MAX (min_y1, max_y2 - bg_height); bg_box->y2 = max_y2; break; case BIG_BOX_ALIGNMENT_CENTER: bg_box->y1 = MAX (min_y1, priv->border_top + (allocated_height - bg_height) / 2); bg_box->y2 = MIN (bg_box->y1 + bg_height, max_y2); break; } } static void big_box_update_background_border (BigBox *box) { BigBoxPrivate *priv; g_return_if_fail (BIG_IS_BOX (box)); priv = box->priv; if (priv->background_texture) { guint border_top = 0, border_bottom = 0, border_left = 0, border_right = 0; if ((priv->background_x_align == BIG_BOX_ALIGNMENT_FILL) && /* No repeat on the horizontal axis */ ((priv->background_repeat == BIG_BOX_BACKGROUND_REPEAT_NONE) || (priv->background_repeat == BIG_BOX_BACKGROUND_REPEAT_Y))) { border_left = priv->background_border_left; border_right = priv->background_border_right; } if ((priv->background_y_align == BIG_BOX_ALIGNMENT_FILL) && /* No repeat on the vertical axis */ ((priv->background_repeat == BIG_BOX_BACKGROUND_REPEAT_NONE) || (priv->background_repeat == BIG_BOX_BACKGROUND_REPEAT_X))) { border_top = priv->background_border_top; border_bottom = priv->background_border_bottom; } g_object_set (priv->background_texture, "border-left", border_left, "border-right", border_right, "border-top", border_top, "border-bottom", border_bottom, NULL); } } /* Update whether or not we draw rounded corners. * If different sizes are set for different border segments, * we ignore the radius. */ static void big_box_update_draw_rounded_corner (BigBox *box) { BigBoxPrivate *priv; priv = box->priv; priv->draw_rounded_corner = (priv->border_top == priv->border_left) && (priv->border_top == priv->border_right) && (priv->border_top == priv->border_bottom) && (priv->corner_radius != 0); if (!priv->draw_rounded_corner && priv->background_rectangle) { clutter_actor_unparent(priv->background_rectangle); priv->background_rectangle = NULL; } if (priv->draw_rounded_corner && !priv->background_rectangle) { priv->background_rectangle = g_object_new (BIG_TYPE_RECTANGLE, NULL); clutter_actor_set_parent (priv->background_rectangle, CLUTTER_ACTOR (box)); clutter_actor_queue_relayout (CLUTTER_ACTOR (box)); } if (priv->draw_rounded_corner) { g_object_set (priv->background_rectangle, "color", &priv->background_color, "border-color", &priv->border_color, "border-width", priv->border_top, "corner-radius", priv->corner_radius, NULL); } } static void big_box_set_background_repeat (BigBox *box, BigBoxBackgroundRepeat background_repeat) { BigBoxPrivate *priv; priv = box->priv; priv->background_repeat = background_repeat; if (priv->background_texture) { gboolean repeat_x = FALSE, repeat_y = FALSE; switch (priv->background_repeat) { case BIG_BOX_BACKGROUND_REPEAT_NONE: break; case BIG_BOX_BACKGROUND_REPEAT_X: repeat_x = TRUE; break; case BIG_BOX_BACKGROUND_REPEAT_Y: repeat_y = TRUE; break; case BIG_BOX_BACKGROUND_REPEAT_BOTH: repeat_x = TRUE; repeat_y = TRUE; break; } g_object_set (G_OBJECT (priv->background_texture), "repeat-x", repeat_x, "repeat-y", repeat_y, NULL); } } static void big_box_set_background_pixbuf (BigBox *box, GdkPixbuf *pixbuf) { BigBoxPrivate *priv; ClutterActor *background_texture; g_return_if_fail (BIG_IS_BOX (box)); priv = box->priv; if (priv->background_texture) { clutter_actor_unparent (priv->background_texture); priv->background_texture = NULL; } /* This means we just want to remove current background texture */ if (pixbuf == NULL) return; /* The border values are set depending on the background-repeat * and background alignment settings in * big_box_update_background_border */ background_texture = big_theme_image_new_from_pixbuf (pixbuf, 0, 0, 0, 0); if (background_texture) { clutter_actor_set_parent (background_texture, CLUTTER_ACTOR (box)); priv->background_texture = background_texture; big_box_set_background_repeat (box, priv->background_repeat); } } static void big_box_set_background_filename (BigBox *box, const char *filename) { BigBoxPrivate *priv; ClutterActor *background_texture; g_return_if_fail (BIG_IS_BOX (box)); g_return_if_fail (filename != NULL); priv = box->priv; if (priv->background_texture) { clutter_actor_unparent (priv->background_texture); priv->background_texture = NULL; } /* This means we just want to remove current background texture */ if (filename == NULL) return; /* The border values are set depending on the background-repeat * and background alignment settings in * big_box_update_background_border */ background_texture = big_theme_image_new_from_file (filename, 0, 0, 0, 0); if (background_texture) { clutter_actor_set_parent (background_texture, CLUTTER_ACTOR (box)); priv->background_texture = background_texture; big_box_set_background_repeat (box, priv->background_repeat); } } static void big_box_set_property (GObject *gobject, guint prop_id, const GValue *value, GParamSpec *pspec) { BigBoxPrivate *priv = BIG_BOX (gobject)->priv; gboolean need_repaint = TRUE; gboolean need_resize = TRUE; switch (prop_id) { case PROP_ORIENTATION: priv->orientation = g_value_get_enum (value); break; case PROP_SPACING: priv->spacing = g_value_get_int (value); break; case PROP_X_ALIGN: priv->x_align = g_value_get_enum (value); break; case PROP_Y_ALIGN: priv->y_align = g_value_get_enum (value); break; case PROP_PADDING: big_box_set_padding(BIG_BOX(gobject), g_value_get_int(value)); break; case PROP_PADDING_TOP: priv->padding_top = g_value_get_int (value); break; case PROP_PADDING_BOTTOM: priv->padding_bottom = g_value_get_int (value); break; case PROP_PADDING_LEFT: priv->padding_left = g_value_get_int (value); break; case PROP_PADDING_RIGHT: priv->padding_right = g_value_get_int (value); break; case PROP_BORDER: big_box_set_border_width(BIG_BOX(gobject), g_value_get_int(value)); break; case PROP_BORDER_TOP: priv->border_top = g_value_get_int (value); big_box_update_draw_rounded_corner (BIG_BOX (gobject)); break; case PROP_BORDER_BOTTOM: priv->border_bottom = g_value_get_int (value); big_box_update_draw_rounded_corner (BIG_BOX (gobject)); break; case PROP_BORDER_LEFT: priv->border_left = g_value_get_int (value); big_box_update_draw_rounded_corner (BIG_BOX (gobject)); break; case PROP_BORDER_RIGHT: priv->border_right = g_value_get_int (value); big_box_update_draw_rounded_corner (BIG_BOX (gobject)); break; case PROP_CORNER_RADIUS: priv->corner_radius = g_value_get_uint (value); big_box_update_draw_rounded_corner (BIG_BOX (gobject)); break; case PROP_BACKGROUND_BORDER_TOP: priv->background_border_top = g_value_get_uint (value); need_resize = FALSE; big_box_update_background_border (BIG_BOX (gobject)); break; case PROP_BACKGROUND_BORDER_BOTTOM: priv->background_border_bottom = g_value_get_uint (value); need_resize = FALSE; big_box_update_background_border (BIG_BOX (gobject)); break; case PROP_BACKGROUND_BORDER_LEFT: priv->background_border_left = g_value_get_uint (value); need_resize = FALSE; big_box_update_background_border (BIG_BOX (gobject)); break; case PROP_BACKGROUND_BORDER_RIGHT: priv->background_border_right = g_value_get_uint (value); need_resize = FALSE; big_box_update_background_border (BIG_BOX (gobject)); break; case PROP_BACKGROUND_COLOR: { ClutterColor *color; color = g_value_get_boxed (value); if (color) { priv->background_color = *color; } else { /* null = default (black and transparent) */ priv->background_color.red = 0; priv->background_color.green = 0; priv->background_color.blue = 0; priv->background_color.alpha = 0; } if (priv->background_rectangle) { g_object_set (priv->background_rectangle, "color", &priv->background_color, NULL); } need_resize = FALSE; } break; case PROP_BACKGROUND_FILENAME: big_box_set_background_filename (BIG_BOX (gobject), g_value_get_string (value)); big_box_update_background_border (BIG_BOX (gobject)); break; case PROP_BACKGROUND_PIXBUF: big_box_set_background_pixbuf (BIG_BOX (gobject), g_value_get_object (value)); big_box_update_background_border (BIG_BOX (gobject)); break; case PROP_BACKGROUND_REPEAT: big_box_set_background_repeat (BIG_BOX (gobject), g_value_get_enum (value)); big_box_update_background_border (BIG_BOX (gobject)); break; case PROP_BACKGROUND_X_ALIGN: priv->background_x_align = g_value_get_enum (value); big_box_update_background_border (BIG_BOX (gobject)); break; case PROP_BACKGROUND_Y_ALIGN: priv->background_y_align = g_value_get_enum (value); big_box_update_background_border (BIG_BOX (gobject)); break; case PROP_BORDER_COLOR: { ClutterColor *color; color = g_value_get_boxed (value); if (color) { priv->border_color = *color; } else { /* null = default (black and transparent) */ priv->border_color.red = 0; priv->border_color.green = 0; priv->border_color.blue = 0; priv->border_color.alpha = 0; } if (priv->background_rectangle) { g_object_set (priv->background_rectangle, "border-color", &priv->border_color, NULL); } need_resize = FALSE; } break; case PROP_DEBUG: priv->debug = g_value_get_boolean (value); need_repaint = FALSE; need_resize = FALSE; break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec); break; } if (need_resize) clutter_actor_queue_relayout (CLUTTER_ACTOR (gobject)); else if (need_repaint) clutter_actor_queue_redraw (CLUTTER_ACTOR (gobject)); } static void big_box_get_property (GObject *gobject, guint prop_id, GValue *value, GParamSpec *pspec) { BigBoxPrivate *priv = BIG_BOX (gobject)->priv; switch (prop_id) { case PROP_ORIENTATION: g_value_set_enum (value, priv->orientation); break; case PROP_SPACING: g_value_set_int (value, priv->spacing); break; case PROP_X_ALIGN: g_value_set_enum (value, priv->x_align); break; case PROP_Y_ALIGN: g_value_set_enum (value, priv->y_align); break; case PROP_PADDING_TOP: g_value_set_int (value, priv->padding_top); break; case PROP_PADDING_BOTTOM: g_value_set_int (value, priv->padding_bottom); break; case PROP_PADDING_LEFT: g_value_set_int (value, priv->padding_left); break; case PROP_PADDING_RIGHT: g_value_set_int (value, priv->padding_right); break; case PROP_BORDER_TOP: g_value_set_int (value, priv->border_top); break; case PROP_BORDER_BOTTOM: g_value_set_int (value, priv->border_bottom); break; case PROP_BORDER_LEFT: g_value_set_int (value, priv->border_left); break; case PROP_BORDER_RIGHT: g_value_set_int (value, priv->border_right); break; case PROP_CORNER_RADIUS: g_value_set_uint (value, priv->corner_radius); break; case PROP_BACKGROUND_TEXTURE: g_value_set_object (value, priv->background_texture); break; case PROP_BACKGROUND_RECTANGLE: g_value_set_object (value, priv->background_rectangle); break; case PROP_BACKGROUND_BORDER_TOP: g_value_set_uint (value, priv->background_border_top); break; case PROP_BACKGROUND_BORDER_BOTTOM: g_value_set_uint (value, priv->background_border_bottom); break; case PROP_BACKGROUND_BORDER_LEFT: g_value_set_uint (value, priv->background_border_left); break; case PROP_BACKGROUND_BORDER_RIGHT: g_value_set_uint (value, priv->background_border_right); break; case PROP_BACKGROUND_COLOR: g_value_set_boxed (value, &priv->background_color); break; case PROP_BACKGROUND_REPEAT: g_value_set_enum (value, priv->background_repeat); break; case PROP_BACKGROUND_X_ALIGN: g_value_set_enum (value, priv->background_x_align); break; case PROP_BACKGROUND_Y_ALIGN: g_value_set_enum (value, priv->background_y_align); break; case PROP_BORDER_COLOR: g_value_set_boxed (value, &priv->border_color); break; case PROP_DEBUG: g_value_set_boolean (value, priv->debug); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (gobject, prop_id, pspec); break; } } static void big_box_finalize (GObject *gobject) { G_OBJECT_CLASS (big_box_parent_class)->finalize (gobject); } static void big_box_dispose (GObject *gobject) { BigBox *self = BIG_BOX (gobject); BigBoxPrivate *priv = self->priv; if (priv->background_texture) { clutter_actor_unparent (priv->background_texture); priv->background_texture = NULL; } if (priv->background_rectangle) { clutter_actor_unparent (priv->background_rectangle); priv->background_rectangle = NULL; } while (priv->children) { clutter_actor_destroy(((BigBoxChild*)priv->children->data)->actor); } G_OBJECT_CLASS (big_box_parent_class)->dispose (gobject); } static void big_box_get_content_width_request (ClutterActor *self, int *min_width_p, int *natural_width_p) { BigBoxPrivate *priv; int total_min; int total_natural; int n_children_in_min; int n_children_in_natural; GList *c; priv = BIG_BOX (self)->priv; total_min = 0; total_natural = 0; n_children_in_min = 0; n_children_in_natural = 0; for (c = priv->children; c != NULL; c = c->next) { BigBoxChild *child = (BigBoxChild *) c->data; float min_width; float natural_width; if (!BOX_CHILD_IN_LAYOUT (child)) continue; /* PACK_IF_FITS children are do not contribute to the min size * of the whole box, but do contribute to natural size, and * will be hidden entirely if their width request does not * fit. */ clutter_actor_get_preferred_width (child->actor, -1, &min_width, &natural_width); if (priv->debug) g_debug ("Child %p min width %g natural %g", child->actor, min_width, natural_width); n_children_in_natural += 1; /* children with if fits flag won't appear at our min width if * we are horizontal. If we're vertical, always request enough * width for all if_fits children. Children with 0 min size won't * themselves appear but they will get spacing around them, so * they count in n_children_in_min. */ if (priv->orientation == BIG_BOX_ORIENTATION_VERTICAL) { total_min = MAX (total_min, min_width); n_children_in_min += 1; total_natural = MAX (total_natural, natural_width); } else { if (!child->if_fits) { total_min += min_width; n_children_in_min += 1; } total_natural += natural_width; } } if (priv->orientation == BIG_BOX_ORIENTATION_HORIZONTAL && n_children_in_min > 1) { total_min += priv->spacing * (n_children_in_min - 1); } if (priv->orientation == BIG_BOX_ORIENTATION_HORIZONTAL && n_children_in_natural > 1) { total_natural += priv->spacing * (n_children_in_natural - 1); } if (min_width_p) *min_width_p = total_min; if (natural_width_p) *natural_width_p = total_natural; } static void big_box_get_preferred_width (ClutterActor *self, float for_height, float *min_width_p, float *natural_width_p) { BigBoxPrivate *priv; int content_min_width; int content_natural_width; int outside; priv = BIG_BOX (self)->priv; big_box_get_content_width_request (self, &content_min_width, &content_natural_width); outside = priv->padding_left + priv->padding_right + priv->border_left + priv->border_right; if (min_width_p) *min_width_p = content_min_width + outside; if (natural_width_p) *natural_width_p = content_natural_width + outside; if (priv->debug) { if (min_width_p) g_debug ("Computed minimum width as %g", *min_width_p); if (natural_width_p) g_debug ("Computed natural width as %g", *natural_width_p); } } static void big_box_get_content_area_horizontal (ClutterActor *self, int requested_content_width, int natural_content_width, int allocated_box_width, int *x_p, int *width_p) { BigBoxPrivate *priv; int left; int right; int unpadded_box_width; int content_width; priv = BIG_BOX (self)->priv; left = priv->border_left + priv->padding_left; right = priv->border_right + priv->padding_right; g_return_if_fail (requested_content_width >= 0); if (natural_content_width < allocated_box_width) content_width = natural_content_width; else content_width = MAX (requested_content_width, allocated_box_width); unpadded_box_width = allocated_box_width - left - right; switch (priv->x_align) { case BIG_BOX_ALIGNMENT_FIXED: g_warning("Must specify a real alignment for content, not FIXED"); break; case BIG_BOX_ALIGNMENT_FILL: if (x_p) *x_p = left; if (width_p) *width_p = unpadded_box_width; break; case BIG_BOX_ALIGNMENT_START: if (x_p) *x_p = left; if (width_p) *width_p = content_width; break; case BIG_BOX_ALIGNMENT_END: if (x_p) *x_p = allocated_box_width - right - content_width; if (width_p) *width_p = content_width; break; case BIG_BOX_ALIGNMENT_CENTER: if (x_p) *x_p = left + (unpadded_box_width - content_width) / 2; if (width_p) *width_p = content_width; break; } } static void big_box_get_content_area_vertical (ClutterActor *self, int requested_content_height, int natural_content_height, int allocated_box_height, int *y_p, int *height_p) { BigBoxPrivate *priv; int top; int bottom; int unpadded_box_height; int content_height; priv = BIG_BOX (self)->priv; top = priv->border_top + priv->padding_top; bottom = priv->border_bottom + priv->padding_bottom; g_return_if_fail (requested_content_height >= 0); if (natural_content_height < allocated_box_height) content_height = natural_content_height; else content_height = MAX (requested_content_height, allocated_box_height); unpadded_box_height = allocated_box_height - top - bottom; switch (priv->y_align) { case BIG_BOX_ALIGNMENT_FIXED: g_warning("Must specify a real alignment for content, not FIXED"); break; case BIG_BOX_ALIGNMENT_FILL: if (y_p) *y_p = top; if (height_p) *height_p = unpadded_box_height; break; case BIG_BOX_ALIGNMENT_START: if (y_p) *y_p = top; if (height_p) *height_p = content_height; break; case BIG_BOX_ALIGNMENT_END: if (y_p) *y_p = allocated_box_height - bottom - content_height; if (height_p) *height_p = content_height; break; case BIG_BOX_ALIGNMENT_CENTER: if (y_p) *y_p = top + (unpadded_box_height - content_height) / 2; if (height_p) *height_p = content_height; break; } } static BigBoxAdjustInfo * big_box_adjust_infos_new (BigBox *box, float for_content_width) { BigBoxPrivate *priv = box->priv; BigBoxAdjustInfo *adjusts = g_new0 (BigBoxAdjustInfo, g_list_length (priv->children)); GList *c; gint i = 0; for (c = priv->children; c != NULL; c = c->next) { BigBoxChild *child = (BigBoxChild *) c->data; if (!BOX_CHILD_IN_LAYOUT (child)) { adjusts[i].minimum = adjusts[i].natural = 0; } else if (priv->orientation == BIG_BOX_ORIENTATION_VERTICAL) { float minimum, natural; clutter_actor_get_preferred_height (child->actor, for_content_width, &minimum, &natural); adjusts[i].minimum = minimum; adjusts[i].natural = natural; } else { float minimum, natural; clutter_actor_get_preferred_width (child->actor, -1, &minimum, &natural); adjusts[i].minimum = minimum; adjusts[i].natural = natural; } i++; } return adjusts; } static void big_box_adjust_if_fits_as_not_fitting (GList *children, BigBoxAdjustInfo *adjusts) { GList *c; gint i; i = 0; for (c = children; c != NULL; c = c->next) { BigBoxChild *child = (BigBoxChild *) c->data; if (child->if_fits) { adjusts[i].adjustment -= adjusts[i].minimum; adjusts[i].does_not_fit = TRUE; } ++i; } } static gboolean big_box_adjust_up_to_natural_size (GList *children, int *remaining_extra_space_p, BigBoxAdjustInfo *adjusts, gboolean if_fits) { int smallest_increase; int space_to_distribute; GList *c; gint n_needing_increase; gint i; g_assert (*remaining_extra_space_p >= 0); if (*remaining_extra_space_p == 0) return FALSE; smallest_increase = G_MAXINT; n_needing_increase = 0; i = 0; for (c = children; c != NULL; c = c->next) { BigBoxChild *child = (BigBoxChild *) c->data; if (BOX_CHILD_IN_LAYOUT (child) && ((!child->if_fits && !if_fits) || (child->if_fits && if_fits && !adjusts[i].does_not_fit))) { float needed_increase; g_assert (adjusts[i].adjustment >= 0); /* Guaranteed to be >= 0 */ needed_increase = adjusts[i].natural - adjusts[i].minimum; g_assert (needed_increase >= 0); needed_increase -= adjusts[i].adjustment; /* see how much we've already increased */ if (needed_increase > 0) { n_needing_increase += 1; smallest_increase = MIN (smallest_increase, needed_increase); } } ++i; } if (n_needing_increase == 0) return FALSE; g_assert (smallest_increase < G_MAXINT); space_to_distribute = MIN (*remaining_extra_space_p, smallest_increase * n_needing_increase); g_assert(space_to_distribute >= 0); g_assert(space_to_distribute <= *remaining_extra_space_p); *remaining_extra_space_p -= space_to_distribute; i = 0; for (c = children; c != NULL; c = c->next) { BigBoxChild *child = (BigBoxChild *) c->data; if (BOX_CHILD_IN_LAYOUT (child) && ((!child->if_fits && !if_fits) || (child->if_fits && if_fits && !adjusts[i].does_not_fit))) { float needed_increase; g_assert (adjusts[i].adjustment >= 0); /* Guaranteed to be >= 0 */ needed_increase = adjusts[i].natural - adjusts[i].minimum; g_assert(needed_increase >= 0); needed_increase -= adjusts[i].adjustment; /* see how much we've already increased */ if (needed_increase > 0) { float extra; extra = (space_to_distribute / n_needing_increase); n_needing_increase -= 1; space_to_distribute -= extra; adjusts[i].adjustment += extra; } } ++i; } g_assert (n_needing_increase == 0); g_assert (space_to_distribute == 0); return TRUE; } static gboolean big_box_adjust_one_if_fits (GList *children, int spacing, int *remaining_extra_space_p, BigBoxAdjustInfo *adjusts) { GList *c; int spacing_delta; gint i; gboolean visible_children = FALSE; if (*remaining_extra_space_p == 0) return FALSE; /* if there are no currently visible children, then adding a child won't * add another spacing */ i = 0; for (c = children; c != NULL; c = c->next) { BigBoxChild *child = (BigBoxChild *) c->data; if (BOX_CHILD_IN_LAYOUT (child) && (!child->if_fits || !adjusts[i].does_not_fit)) { visible_children = TRUE; break; } i++; } spacing_delta = visible_children ? spacing : 0; i = 0; for (c = children; c != NULL; c = c->next) { if (adjusts[i].does_not_fit) { /* This child was adjusted downward, see if we can pop it visible * (picking the smallest instead of first if-fits child on each pass * might be nice, but for now it's the first that fits) */ if ((adjusts[i].minimum + spacing_delta) <= *remaining_extra_space_p) { adjusts[i].adjustment += adjusts[i].minimum; g_assert (adjusts[i].adjustment >= 0); adjusts[i].does_not_fit = FALSE; *remaining_extra_space_p -= (adjusts[i].minimum + spacing_delta); g_assert (*remaining_extra_space_p >= 0); return TRUE; } } ++i; } return FALSE; } static gboolean box_child_is_expandable (BigBoxChild *child, BigBoxAdjustInfo *adjust) { return (BOX_CHILD_IS_VISIBLE (child) || child->if_hidden) && child->expand && (!child->if_fits || (adjust && !(adjust->does_not_fit))); } static int big_box_count_expandable_children (GList *children, BigBoxAdjustInfo *adjusts) { GList *c; gint count; gint i; count = 0; i = 0; for (c = children; c != NULL; c = c->next) { BigBoxChild *child = (BigBoxChild *) c->data; /* We assume here that we've prevented via g_warning * any floats/fixed from having expand=TRUE */ if (box_child_is_expandable (child, adjusts ? &(adjusts[i]) : NULL)) ++count; ++i; } return count; } static void big_box_adjust_for_expandable (GList *children, int *remaining_extra_space_p, BigBoxAdjustInfo *adjusts) { GList *c; int expand_space; gint expand_count; gint i; if (*remaining_extra_space_p == 0) return; expand_space = *remaining_extra_space_p; expand_count = big_box_count_expandable_children (children, adjusts); if (expand_count == 0) return; i = 0; for (c = children; c != NULL; c = c->next) { BigBoxChild *child = (BigBoxChild *) c->data; if (box_child_is_expandable (child, &(adjusts[i])) && !adjusts[i].does_not_fit) { float extra; extra = (expand_space / expand_count); expand_count -= 1; expand_space -= extra; adjusts[i].adjustment += extra; } ++i; } /* if we had anything to expand, then we will have used up all space */ g_assert (expand_space == 0); g_assert (expand_count == 0); *remaining_extra_space_p = 0; } static void big_box_compute_adjusts (GList *children, BigBoxAdjustInfo *adjusts, int spacing, int alloc_request_delta) { int remaining_extra_space; if (children == NULL) return; /* Go ahead and cram all PACK_IF_FITS children to zero width, * we'll expand them again if we can. */ big_box_adjust_if_fits_as_not_fitting (children, adjusts); /* Make no adjustments if we got too little or just right space. * (FIXME handle too little space better) */ if (alloc_request_delta <= 0) { return; } remaining_extra_space = alloc_request_delta; /* Adjust non-PACK_IF_FITS up to natural size */ while (big_box_adjust_up_to_natural_size (children, &remaining_extra_space, adjusts, FALSE)) ; /* See if any PACK_IF_FITS can get their minimum size */ while (big_box_adjust_one_if_fits (children, spacing, &remaining_extra_space, adjusts)) ; /* If so, then see if they can also get a natural size */ while (big_box_adjust_up_to_natural_size(children, &remaining_extra_space, adjusts, TRUE)) ; /* And finally we can expand to fill empty space */ big_box_adjust_for_expandable (children, &remaining_extra_space, adjusts); /* remaining_extra_space need not be 0, if we had no expandable children */ } static int big_box_get_adjusted_size (BigBoxAdjustInfo *adjust) { return adjust->minimum + adjust->adjustment; } static void big_box_get_hbox_height_request (ClutterActor *self, int for_width, int *min_height_p, int *natural_height_p) { BigBoxPrivate *priv; int total_min; int total_natural; int requested_content_width; int natural_content_width; int allocated_content_width; BigBoxAdjustInfo *width_adjusts; GList *c; gint i; priv = BIG_BOX (self)->priv; total_min = 0; total_natural = 0; big_box_get_content_width_request (self, &requested_content_width, &natural_content_width); big_box_get_content_area_horizontal (self, requested_content_width, natural_content_width, for_width, NULL, &allocated_content_width); width_adjusts = big_box_adjust_infos_new (BIG_BOX (self), for_width); big_box_compute_adjusts (priv->children, width_adjusts, priv->spacing, allocated_content_width - requested_content_width); i = 0; for (c = priv->children; c != NULL; c = c->next) { BigBoxChild *child = c->data; float min_height, natural_height; int req = 0; if (!BOX_CHILD_IN_LAYOUT (child)) { ++i; continue; } req = big_box_get_adjusted_size (&width_adjusts[i]); clutter_actor_get_preferred_height (child->actor, req, &min_height, &natural_height); if (priv->debug) g_debug ("H - Child %p min height %g natural %g", child->actor, min_height, natural_height); total_min = MAX (total_min, min_height); total_natural = MAX (total_natural, natural_height); ++i; } g_free (width_adjusts); if (min_height_p) *min_height_p = total_min; if (natural_height_p) *natural_height_p = total_natural; } static void big_box_get_vbox_height_request (ClutterActor *self, int for_width, int *min_height_p, int *natural_height_p) { BigBoxPrivate *priv; int total_min; int total_natural; int n_children_in_min; int n_children_in_natural; GList *c; priv = BIG_BOX (self)->priv; total_min = 0; total_natural = 0; n_children_in_min = 0; n_children_in_natural = 0; for (c = priv->children; c != NULL; c = c->next) { BigBoxChild *child = (BigBoxChild *) c->data; float min_height; float natural_height; if (!BOX_CHILD_IN_LAYOUT (child)) continue; clutter_actor_get_preferred_height (child->actor, for_width, &min_height, &natural_height); if (priv->debug) g_debug ("V - Child %p min height %g natural %g", child->actor, min_height, natural_height); n_children_in_natural += 1; total_natural += natural_height; if (!child->if_fits) { n_children_in_min += 1; total_min += min_height; } } if (n_children_in_min > 1) total_min += priv->spacing * (n_children_in_min - 1); if (n_children_in_natural > 1) total_natural += priv->spacing * (n_children_in_natural - 1); if (min_height_p) *min_height_p = total_min; if (natural_height_p) *natural_height_p = total_natural; } static void big_box_get_content_height_request (ClutterActor *self, int for_width, int *min_height_p, int *natural_height_p) { BigBoxPrivate *priv; priv = BIG_BOX (self)->priv; if (priv->orientation == BIG_BOX_ORIENTATION_VERTICAL) big_box_get_vbox_height_request (self, for_width, min_height_p, natural_height_p); else big_box_get_hbox_height_request (self, for_width, min_height_p, natural_height_p); } static void big_box_get_preferred_height (ClutterActor *self, float for_width, float *min_height_p, float *natural_height_p) { BigBoxPrivate *priv; int content_min_height, content_natural_height; int content_for_width; int outside; priv = BIG_BOX (self)->priv; content_for_width = for_width - priv->padding_left - priv->padding_right - priv->border_left - priv->border_right; /* We need to call this even if just returning the box-height prop, * so that children can rely on getting the full request, allocate * cycle in order every time, and so we compute the cached requests. */ big_box_get_content_height_request (self, content_for_width, &content_min_height, &content_natural_height); outside = priv->padding_top + priv->padding_bottom + priv->border_top + priv->border_bottom; if (min_height_p) *min_height_p = content_min_height + outside; if (natural_height_p) *natural_height_p = content_natural_height + outside; if (priv->debug) { if (min_height_p) g_debug ("Computed minimum height for width=%g as %g", for_width, *min_height_p); if (natural_height_p) g_debug ("Computed natural height for width=%g as %g", for_width, *natural_height_p); } } static void big_box_layout (ClutterActor *self, float content_x, float content_y, float allocated_content_width, float allocated_content_height, float requested_content_width, float requested_content_height, ClutterAllocationFlags flags) { BigBoxPrivate *priv; BigBoxAdjustInfo *adjusts; ClutterActorBox child_box; float allocated_size, requested_size; float start; float end; GList *c; gint i; priv = BIG_BOX (self)->priv; if (priv->orientation == BIG_BOX_ORIENTATION_VERTICAL) { allocated_size = allocated_content_height; requested_size = requested_content_height; start = content_y; } else { allocated_size = allocated_content_width; requested_size = requested_content_width; start = content_x; } end = start + allocated_size; adjusts = big_box_adjust_infos_new (BIG_BOX (self), allocated_content_width); big_box_compute_adjusts (priv->children, adjusts, priv->spacing, allocated_size - requested_size); i = 0; for (c = priv->children; c != NULL; c = c->next) { BigBoxChild *child = (BigBoxChild *) c->data; float req; if (!BOX_CHILD_IN_LAYOUT (child)) { ++i; continue; } if (priv->orientation == BIG_BOX_ORIENTATION_VERTICAL) { req = big_box_get_adjusted_size (&adjusts[i]); child_box.x1 = content_x; child_box.y1 = child->end ? end - req : start; child_box.x2 = child_box.x1 + allocated_content_width; child_box.y2 = child_box.y1 + req; if (priv->debug) g_debug ("V - Child %p %s being allocated: %g, %g, %g, %g w: %g h: %g", child->actor, g_type_name_from_instance((GTypeInstance*) child->actor), child_box.x1, child_box.y1, child_box.x2, child_box.y2, child_box.x2 - child_box.x1, child_box.y2 - child_box.y1); clutter_actor_allocate (child->actor, &child_box, flags); } else { req = big_box_get_adjusted_size (&adjusts[i]); child_box.x1 = child->end ? end - req : start; child_box.y1 = content_y; child_box.x2 = child_box.x1 + req; child_box.y2 = child_box.y1 + allocated_content_height; if (priv->debug) g_debug ("H - Child %p %s being allocated: %g, %g, %g, %g w: %g h: %g", child->actor, g_type_name_from_instance((GTypeInstance*) child->actor), child_box.x1, child_box.y1, child_box.x2, child_box.y2, child_box.x2 - child_box.x1, child_box.y2 - child_box.y1); clutter_actor_allocate (child->actor, &child_box, flags); } if (req <= 0) { /* Child was adjusted out of existence, act like it's * !visible */ child_box.x1 = 0; child_box.y1 = 0; child_box.x2 = 0; child_box.y2 = 0; clutter_actor_allocate (child->actor, &child_box, flags); } /* Children with req == 0 still get spacing unless they are IF_FITS. * The handling of spacing could use improvement (spaces should probably * act like items with min width 0 and natural width of spacing) but * it's pretty hard to get right without rearranging the code a lot. */ if (!adjusts[i].does_not_fit) { if (child->end) end -= (req + priv->spacing); else start += (req + priv->spacing); } ++i; } g_free (adjusts); } static void big_box_allocate (ClutterActor *self, const ClutterActorBox *box, ClutterAllocationFlags flags) { BigBoxPrivate *priv; int requested_content_width; int requested_content_height; int natural_content_width; int natural_content_height; int allocated_content_width; int allocated_content_height = 0; int content_x, content_y = 0; GList *c; priv = BIG_BOX (self)->priv; if (priv->debug) g_debug ("Entire box %p being allocated: %g, %g, %g, %g", self, box->x1, box->y1, box->x2, box->y2); CLUTTER_ACTOR_CLASS (big_box_parent_class)->allocate (self, box, flags); big_box_get_content_width_request (self, &requested_content_width, &natural_content_width); big_box_get_content_area_horizontal (self, requested_content_width, natural_content_width, box->x2 - box->x1, &content_x, &allocated_content_width); big_box_get_content_height_request (self, allocated_content_width, &requested_content_height, &natural_content_height); big_box_get_content_area_vertical (self, requested_content_height, natural_content_height, box->y2 - box->y1, &content_y, &allocated_content_height); if (priv->debug) { if (allocated_content_height < requested_content_height) g_debug ("Box %p allocated height %d but requested %d", self, allocated_content_height, requested_content_height); if (allocated_content_width < requested_content_width) g_debug ("Box %p allocated width %d but requested %d", self, allocated_content_width, requested_content_width); } if (priv->background_texture) { ClutterActorBox bg_box; big_box_get_bg_texture_allocation (self, box->x2 - box->x1, box->y2 - box->y1, &bg_box); if (priv->debug) { g_debug ("Box %p texture allocated width %g and height %g", self, bg_box.x2 - bg_box.x1, bg_box.y2 - bg_box.y1); } clutter_actor_allocate (priv->background_texture, &bg_box, flags); } if (priv->background_rectangle) { ClutterActorBox rectangle_box; rectangle_box.x1 = 0; rectangle_box.y1 = 0; rectangle_box.x2 = box->x2 - box->x1; rectangle_box.y2 = box->y2 - box->y1; clutter_actor_allocate (priv->background_rectangle, &rectangle_box, flags); } for (c = priv->children; c != NULL; c = c->next) { BigBoxChild *child = (BigBoxChild *) c->data; ClutterActorBox child_box; if (!(BOX_CHILD_IS_VISIBLE (child) || child->if_hidden)) { child_box.x1 = 0; child_box.y1 = 0; child_box.x2 = 0; child_box.y2 = 0; clutter_actor_allocate (child->actor, &child_box, FALSE); } else if (child->fixed) { float x, y, width, height; clutter_actor_get_position (child->actor, &x, &y); clutter_actor_get_preferred_width(child->actor, -1, NULL, &width); clutter_actor_get_preferred_height(child->actor, width, NULL, &height); switch (child->fixed_x_align) { case BIG_BOX_ALIGNMENT_FIXED: /* honor child forced x,y instead of aligning automatically */ child_box.x1 = x; child_box.x2 = x + width; break; case BIG_BOX_ALIGNMENT_START: child_box.x1 = content_x; child_box.x2 = child_box.x1 + width; break; case BIG_BOX_ALIGNMENT_END: child_box.x2 = content_x + allocated_content_width; child_box.x1 = child_box.x2 - width; break; case BIG_BOX_ALIGNMENT_CENTER: child_box.x1 = content_x + (allocated_content_width - width) / 2; child_box.x2 = child_box.x1 + width; break; case BIG_BOX_ALIGNMENT_FILL: child_box.x1 = content_x; child_box.x2 = content_x + allocated_content_width; break; } switch (child->fixed_y_align) { case BIG_BOX_ALIGNMENT_FIXED: /* honor child forced x,y instead of aligning automatically */ child_box.y1 = y; child_box.y2 = y + height; break; case BIG_BOX_ALIGNMENT_START: child_box.y1 = content_y; child_box.y2 = child_box.y1 + height; break; case BIG_BOX_ALIGNMENT_END: child_box.y2 = content_y + allocated_content_height; child_box.y1 = child_box.y2 - height; break; case BIG_BOX_ALIGNMENT_CENTER: child_box.y1 = content_y + (allocated_content_height - height) / 2; child_box.y2 = child_box.y1 + height; break; case BIG_BOX_ALIGNMENT_FILL: child_box.y1 = content_y; child_box.y2 = content_y + allocated_content_height; break; } if (priv->debug) g_debug ("Fixed Child being allocated: %g, %g, %g, %g", child_box.x1, child_box.y1, child_box.x2, child_box.y2); clutter_actor_allocate(child->actor, &child_box, flags); } } big_box_layout (self, content_x, content_y, allocated_content_width, allocated_content_height, requested_content_width, requested_content_height, flags); } static void big_box_paint (ClutterActor *actor) { BigBox *self = BIG_BOX (actor); GList *c; ClutterColor color; guint8 actor_opacity; ClutterGeometry allocation; int border_top, border_bottom, border_left, border_right; int padding_top, padding_bottom, padding_left, padding_right; /* shorter variable names (and cast to int while we're at it * though I think this is only for historical reasons) */ border_top = self->priv->border_top; border_bottom = self->priv->border_bottom; border_left = self->priv->border_left; border_right = self->priv->border_right; padding_top = self->priv->padding_top; padding_bottom = self->priv->padding_bottom; padding_left = self->priv->padding_left; padding_right = self->priv->padding_right; actor_opacity = clutter_actor_get_paint_opacity (actor); /* Remember allocation.x and .y don't matter since we are * theoretically already translated to 0,0 */ clutter_actor_get_allocation_geometry (actor, &allocation); cogl_push_matrix (); /* Background */ color = self->priv->background_color; color.alpha = (color.alpha * actor_opacity) / 0xff; /* Border */ if (self->priv->draw_rounded_corner) { /* we delegate drawing of the background to BigRectangle. * Ideally we would always do that but currently BigRectangle * does not support border segments with different size */ clutter_actor_paint (self->priv->background_rectangle); } else { if (color.alpha != 0) { cogl_set_source_color4ub (color.red, color.green, color.blue, color.alpha); cogl_rectangle (border_left, border_top, allocation.width - border_left, allocation.height - border_bottom); } color = self->priv->border_color; color.alpha = (color.alpha * actor_opacity) / 0xff; if (color.alpha != 0) { cogl_set_source_color4ub (color.red, color.green, color.blue, color.alpha); /* top */ cogl_rectangle (0, 0, allocation.width, border_top); /* left */ cogl_rectangle (0, border_top, border_left, allocation.height - border_top); /* right */ cogl_rectangle (allocation.width - border_right, border_top, allocation.width, allocation.height - border_top); /* bottom */ cogl_rectangle (0, allocation.height - border_bottom, allocation.width, allocation.height); } } if (self->priv->background_texture && CLUTTER_ACTOR_IS_VISIBLE(self->priv->background_texture)) { clutter_actor_paint (CLUTTER_ACTOR (self->priv->background_texture)); } /* Children */ for (c = self->priv->children; c != NULL; c = c->next) { BigBoxChild *child = (BigBoxChild *) c->data; g_assert (child != NULL); if (BOX_CHILD_IS_VISIBLE (child)) { clutter_actor_paint (child->actor); } } cogl_pop_matrix(); } static void big_box_pick (ClutterActor *actor, const ClutterColor *color) { BigBox *self = BIG_BOX (actor); GList *c; CLUTTER_ACTOR_CLASS (big_box_parent_class)->pick (actor, color); for (c = self->priv->children; c != NULL; c = c->next) { BigBoxChild *child = (BigBoxChild *) c->data; g_assert (child != NULL); if (BOX_CHILD_IS_VISIBLE (child)) clutter_actor_paint (child->actor); } } static void big_box_class_init (BigBoxClass *klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass); g_type_class_add_private (klass, sizeof (BigBoxPrivate)); gobject_class->set_property = big_box_set_property; gobject_class->get_property = big_box_get_property; gobject_class->dispose = big_box_dispose; gobject_class->finalize = big_box_finalize; actor_class->get_preferred_width = big_box_get_preferred_width; actor_class->get_preferred_height = big_box_get_preferred_height; actor_class->allocate = big_box_allocate; actor_class->paint = big_box_paint; actor_class->pick = big_box_pick; g_object_class_install_property (gobject_class, PROP_ORIENTATION, g_param_spec_enum ("orientation", "Orientation", "Orientation of the box", BIG_TYPE_BOX_ORIENTATION, BIG_BOX_ORIENTATION_VERTICAL, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_SPACING, g_param_spec_int ("spacing", "Spacing", "Spacing between items of the box", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_X_ALIGN, g_param_spec_enum ("x-align", "X alignment", "X alignment", BIG_TYPE_BOX_ALIGNMENT, BIG_BOX_ALIGNMENT_START, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_Y_ALIGN, g_param_spec_enum ("y-align", "Y alignment", "Y alignment", BIG_TYPE_BOX_ALIGNMENT, BIG_BOX_ALIGNMENT_START, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_PADDING, g_param_spec_int ("padding", "Padding", "Padding (set all paddings at once)", G_MININT, G_MAXINT, 0, G_PARAM_WRITABLE)); g_object_class_install_property (gobject_class, PROP_PADDING_TOP, g_param_spec_int ("padding-top", "Padding on the top", "Padding on the top", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_PADDING_BOTTOM, g_param_spec_int ("padding-bottom", "Padding on the bottom", "Padding on the bottom", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_PADDING_LEFT, g_param_spec_int ("padding-left", "Padding on the left", "Padding on the left", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_PADDING_RIGHT, g_param_spec_int ("padding-right", "Padding on the right", "Padding on the right", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_BORDER, g_param_spec_int ("border", "Border", "Border (set all borders at once)", G_MININT, G_MAXINT, 0, G_PARAM_WRITABLE)); g_object_class_install_property (gobject_class, PROP_BORDER_TOP, g_param_spec_int ("border-top", "Border on the top", "Border on the top", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_BORDER_BOTTOM, g_param_spec_int ("border-bottom", "Border on the bottom", "Border on the bottom", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_BORDER_LEFT, g_param_spec_int ("border-left", "Border on the left", "Border on the left", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_BORDER_RIGHT, g_param_spec_int ("border-right", "Border on the right", "Border on the right", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_CORNER_RADIUS, g_param_spec_uint ("corner-radius", "Corner radius", "Radius of the rounded corner " "(ignored with border segments of " "different sizes)", 0, G_MAXUINT, 0, G_PARAM_READWRITE)); /** * BigBox:background-border-top: * * Specifies a border on the top of the image which should not be * stretched when the image is set to fill the box vertically * (background-y-align set to FILL, background-repeat set to * not repeat vertically. Useful for images with rounded corners. */ g_object_class_install_property (gobject_class, PROP_BACKGROUND_BORDER_TOP, g_param_spec_uint ("background-border-top", "Background border on the top", "Background border on the top", 0, G_MAXUINT, 0, G_PARAM_READWRITE)); /** * BigBox:background-border-bottom: * * Specifies a border on the bottom of the image which should not be * stretched when the image is set to fill the box vertically * (background-y-align set to FILL, background-repeat set to * not repeat vertically. Useful for images with rounded corners. */ g_object_class_install_property (gobject_class, PROP_BACKGROUND_BORDER_BOTTOM, g_param_spec_uint ("background-border-bottom", "Background border on the bottom", "Background border on the bottom", 0, G_MAXUINT, 0, G_PARAM_READWRITE)); /** * BigBox:background-border-left: * * Specifies a border on the left of the image which should not be * stretched when the image is set to fill the box horizontally * (background-x-align set to FILL, background-repeat set to * not repeat horizontally. Useful for images with rounded corners. */ g_object_class_install_property (gobject_class, PROP_BACKGROUND_BORDER_LEFT, g_param_spec_uint ("background-border-left", "Background border on the left", "Background border on the left", 0, G_MAXUINT, 0, G_PARAM_READWRITE)); /** * BigBox:background-border-right: * * Specifies a border on the right of the image which should not be * stretched when the image is set to fill the box horizontally * (background-x-align set to FILL, background-repeat set to * not repeat horizontally. Useful for images with rounded corners. */ g_object_class_install_property (gobject_class, PROP_BACKGROUND_BORDER_RIGHT, g_param_spec_uint ("background-border-right", "Background border on the right", "Background border on the right", 0, G_MAXUINT, 0, G_PARAM_READWRITE)); /** * BigBox:background-color: * * Background color, covers padding but not border. */ g_object_class_install_property (gobject_class, PROP_BACKGROUND_COLOR, g_param_spec_boxed ("background-color", "Background Color", "The color of the background", CLUTTER_TYPE_COLOR, G_PARAM_READWRITE)); /** * BigBox:background-filename: * * Background filename, covers padding but not border. */ g_object_class_install_property (gobject_class, PROP_BACKGROUND_FILENAME, g_param_spec_string ("background-filename", "Background Filename", "The image filename of the background", NULL, G_PARAM_WRITABLE)); /** * BigBox:background-pixbuf: * * Background pixbuf, covers padding but not border. */ g_object_class_install_property (gobject_class, PROP_BACKGROUND_PIXBUF, g_param_spec_object ("background-pixbuf", "Background Pixbuf", "The image pixbuf of the background", GDK_TYPE_PIXBUF, G_PARAM_WRITABLE)); /** * BigBox:background-texture: * * Background texture, covers padding but not border. */ g_object_class_install_property (gobject_class, PROP_BACKGROUND_TEXTURE, g_param_spec_object ("background-texture", "Background Texture", "The texture of the background", CLUTTER_TYPE_TEXTURE, G_PARAM_READABLE)); /** * BigBox:background-rectangle: * * Background rectangle, covers the complete box allocation. */ g_object_class_install_property (gobject_class, PROP_BACKGROUND_RECTANGLE, g_param_spec_object ("background-rectangle", "Background Rectangle", "The rectangle forming the box border and " "background color", BIG_TYPE_RECTANGLE, G_PARAM_READABLE)); /** * BigBox:background-repeat: * * Sets if/how a background image will be repeated. */ g_object_class_install_property (gobject_class, PROP_BACKGROUND_REPEAT, g_param_spec_enum ("background-repeat", "Background Repeat", "Background Repeat", BIG_TYPE_BOX_BACKGROUND_REPEAT, BIG_BOX_BACKGROUND_REPEAT_NONE, G_PARAM_READWRITE)); /** * BigBox:background-x-align: * * Sets the horizontal alignment of the background texture. */ g_object_class_install_property (gobject_class, PROP_BACKGROUND_X_ALIGN, g_param_spec_enum ("background-x-align", "Background X alignment", "Background X alignment", BIG_TYPE_BOX_ALIGNMENT, BIG_BOX_ALIGNMENT_FILL, G_PARAM_READWRITE)); /** * BigBox:background-y-align: * * Sets the vertical alignment of the background texture. */ g_object_class_install_property (gobject_class, PROP_BACKGROUND_Y_ALIGN, g_param_spec_enum ("background-y-align", "Background Y alignment", "Background Y alignment", BIG_TYPE_BOX_ALIGNMENT, BIG_BOX_ALIGNMENT_FILL, G_PARAM_READWRITE)); /** * BigBox:border-color: * * Border color, color of border if any. Make the border transparent * to use the border purely for spacing with no visible border. * */ g_object_class_install_property (gobject_class, PROP_BORDER_COLOR, g_param_spec_boxed ("border-color", "Border Color", "The color of the border of the rectangle", CLUTTER_TYPE_COLOR, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_DEBUG, g_param_spec_boolean ("debug", "Debug", "Whether debug is activated or not", FALSE, G_PARAM_READWRITE)); } static void big_box_init (BigBox *box) { box->priv = BIG_BOX_GET_PRIVATE (box); box->priv->orientation = BIG_BOX_ORIENTATION_VERTICAL; box->priv->x_align = BIG_BOX_ALIGNMENT_FILL; box->priv->y_align = BIG_BOX_ALIGNMENT_FILL; box->priv->spacing = 0; box->priv->padding_top = 0; box->priv->padding_bottom = 0; box->priv->padding_left = 0; box->priv->padding_right = 0; box->priv->border_top = 0; box->priv->border_bottom = 0; box->priv->border_left = 0; box->priv->border_right = 0; box->priv->background_texture = NULL; box->priv->background_repeat = BIG_BOX_BACKGROUND_REPEAT_NONE; box->priv->background_x_align = BIG_BOX_ALIGNMENT_FILL; box->priv->background_y_align = BIG_BOX_ALIGNMENT_FILL; box->priv->background_rectangle = NULL; box->priv->draw_rounded_corner = FALSE; /* both bg and border colors default to black and transparent (all bits 0) */ } ClutterActor * big_box_new (BigBoxOrientation orientation) { return g_object_new (BIG_TYPE_BOX, "orientation", orientation, NULL); } void big_box_prepend (BigBox *box, ClutterActor *child, BigBoxPackFlags flags) { BigBoxPrivate *priv; BigBoxChild *c; g_return_if_fail (BIG_IS_BOX (box)); g_return_if_fail (CLUTTER_IS_ACTOR (child)); priv = box->priv; g_object_ref (child); c = box_child_new_from_actor (child, flags); priv->children = g_list_prepend (priv->children, c); clutter_actor_set_parent (child, CLUTTER_ACTOR (box)); g_signal_emit_by_name (box, "actor-added", child); clutter_actor_queue_relayout (CLUTTER_ACTOR (box)); g_object_unref (child); } void big_box_append (BigBox *box, ClutterActor *child, BigBoxPackFlags flags) { BigBoxPrivate *priv; BigBoxChild *c; g_return_if_fail (BIG_IS_BOX (box)); g_return_if_fail (CLUTTER_IS_ACTOR (child)); priv = box->priv; g_object_ref (child); c = box_child_new_from_actor (child, flags); priv->children = g_list_append (priv->children, c); clutter_actor_set_parent (child, CLUTTER_ACTOR (box)); g_signal_emit_by_name (box, "actor-added", child); big_box_real_sort_depth_order (CLUTTER_CONTAINER (box)); clutter_actor_queue_relayout (CLUTTER_ACTOR (box)); g_object_unref (child); } gboolean big_box_is_empty (BigBox *box) { g_return_val_if_fail (BIG_IS_BOX (box), TRUE); return (box->priv->children == NULL); } void big_box_remove_all (BigBox *box) { BigBoxPrivate *priv; g_return_if_fail (BIG_IS_BOX (box)); priv = box->priv; while (priv->children != NULL) { BigBoxChild *child = priv->children->data; box_child_remove (box, child); } clutter_actor_queue_relayout (CLUTTER_ACTOR (box)); } void big_box_insert_after (BigBox *box, ClutterActor *child, ClutterActor *ref_child, BigBoxPackFlags flags) { BigBoxPrivate *priv; BigBoxChild *c, *ref_c; gint position; g_return_if_fail (BIG_IS_BOX (box)); g_return_if_fail (CLUTTER_IS_ACTOR (child)); g_return_if_fail (CLUTTER_IS_ACTOR (ref_child)); priv = box->priv; g_object_ref (child); ref_c = box_child_find (box, ref_child); if (ref_c != NULL) { c = box_child_new_from_actor (child, flags); position = g_list_index (priv->children, ref_c); priv->children = g_list_insert (priv->children, c, ++position); clutter_actor_set_parent (child, CLUTTER_ACTOR (box)); g_signal_emit_by_name (box, "actor-added", child); clutter_actor_queue_relayout (CLUTTER_ACTOR (box)); } g_object_unref (child); } void big_box_insert_before (BigBox *box, ClutterActor *child, ClutterActor *ref_child, BigBoxPackFlags flags) { BigBoxPrivate *priv; BigBoxChild *c, *ref_c; gint position; g_return_if_fail (BIG_IS_BOX (box)); g_return_if_fail (CLUTTER_IS_ACTOR (child)); priv = box->priv; g_object_ref (child); ref_c = box_child_find (box, ref_child); if (ref_c != NULL) { c = box_child_new_from_actor (child, flags); position = g_list_index (priv->children, ref_c); priv->children = g_list_insert (priv->children, c, position); clutter_actor_set_parent (child, CLUTTER_ACTOR (box)); g_signal_emit_by_name (box, "actor-added", child); clutter_actor_queue_relayout (CLUTTER_ACTOR (box)); } g_object_unref (child); } void big_box_set_child_packing (BigBox *box, ClutterActor *child, BigBoxPackFlags flags) { BigBoxChild *c; g_return_if_fail (BIG_IS_BOX (box)); g_return_if_fail (CLUTTER_IS_ACTOR (child)); g_object_ref (child); c = box_child_find (box, child); if (c != NULL && box_child_set_flags (c, flags)) clutter_actor_queue_relayout (CLUTTER_ACTOR (box)); g_object_unref (child); } void big_box_set_child_align(BigBox *box, ClutterActor *child, BigBoxAlignment fixed_x_align, BigBoxAlignment fixed_y_align) { BigBoxChild *c; g_return_if_fail (BIG_IS_BOX (box)); g_return_if_fail (CLUTTER_IS_ACTOR (child)); g_object_ref (child); c = box_child_find (box, child); if (c != NULL && box_child_set_align (c, fixed_x_align, fixed_y_align)) clutter_actor_queue_relayout (CLUTTER_ACTOR (box)); g_object_unref (child); } void big_box_set_padding (BigBox *box, int padding) { BigBoxPrivate *priv; gboolean padding_changed; g_return_if_fail (BIG_IS_BOX (box)); g_return_if_fail (padding >= 0); priv = box->priv; padding_changed = (priv->padding_top != padding || priv->padding_bottom != padding || priv->padding_left != padding || priv->padding_right != padding); if (padding_changed) { g_object_freeze_notify (G_OBJECT (box)); if (box->priv->padding_top != padding) g_object_notify (G_OBJECT (box), "padding-top"); box->priv->padding_top = padding; if (box->priv->padding_bottom != padding) g_object_notify (G_OBJECT (box), "padding-bottom"); box->priv->padding_bottom = padding; if (box->priv->padding_left != padding) g_object_notify (G_OBJECT (box), "padding-left"); box->priv->padding_left = padding; if (box->priv->padding_right != padding) g_object_notify (G_OBJECT (box), "padding-right"); box->priv->padding_right = padding; g_object_thaw_notify (G_OBJECT (box)); clutter_actor_queue_relayout (CLUTTER_ACTOR (box)); } } void big_box_set_border_width (BigBox *box, int border_width) { BigBoxPrivate *priv; gboolean border_changed; g_return_if_fail (BIG_IS_BOX (box)); g_return_if_fail (border_width >= 0); priv = box->priv; border_changed = (priv->border_top != border_width || priv->border_bottom != border_width || priv->border_left != border_width || priv->border_right != border_width); if (border_changed) { g_object_freeze_notify (G_OBJECT (box)); if (box->priv->border_top != border_width) g_object_notify (G_OBJECT (box), "border-top"); box->priv->border_top = border_width; if (box->priv->border_bottom != border_width) g_object_notify (G_OBJECT (box), "border-bottom"); box->priv->border_bottom = border_width; if (box->priv->border_left != border_width) g_object_notify (G_OBJECT (box), "border-left"); box->priv->border_left = border_width; if (box->priv->border_right != border_width) g_object_notify (G_OBJECT (box), "border-right"); box->priv->border_right = border_width; g_object_thaw_notify (G_OBJECT (box)); clutter_actor_queue_relayout (CLUTTER_ACTOR (box)); big_box_update_draw_rounded_corner (box); } }