static void
widget_overlay_add (GtkContainer *container, GtkWidget *widget)
{
WidgetOverlay *ovl = WIDGET_OVERLAY (container);
ChildData *cd;
cd = g_new0 (ChildData, 1);
gtk_widget_set_parent (widget, GTK_WIDGET (ovl));
cd->ovl = ovl;
cd->child = widget;
cd->halign = WIDGET_OVERLAY_ALIGN_CENTER;
cd->valign = WIDGET_OVERLAY_ALIGN_END;
cd->alpha = 1.;
cd->scale = 1.;
cd->ignore_events = FALSE;
cd->is_tooltip = FALSE;
ovl->priv->children = g_list_append (ovl->priv->children, cd);
if (ovl->priv->scale_child) {
ChildData *fcd;
fcd = get_first_child (ovl);
if (cd == fcd)
gtk_range_set_value (ovl->priv->scale_range, cd->scale);
ovl->priv->children = g_list_remove (ovl->priv->children, ovl->priv->scale_child);
ovl->priv->children = g_list_append (ovl->priv->children, ovl->priv->scale_child);
}
}
static void
widget_overlay_dispose (GObject *obj)
{
WidgetOverlay *ovl = WIDGET_OVERLAY (obj);
if (ovl->priv) {
if (ovl->priv->idle_timer) {
g_source_remove (ovl->priv->idle_timer);
ovl->priv->idle_timer = 0;
}
}
if (G_OBJECT_CLASS (parent_class)->dispose)
G_OBJECT_CLASS (parent_class)->dispose (obj);
}
static void
widget_overlay_show (GtkWidget *widget)
{
WidgetOverlay *ovl = WIDGET_OVERLAY (widget);
GList *list;
((GtkWidgetClass *)parent_class)->show (widget);
for (list = ovl->priv->children; list; list = list->next) {
ChildData *cd;
cd = (ChildData*) list->data;
if (cd->is_tooltip)
gtk_widget_hide (cd->child);
}
}
static void
widget_overlay_unrealize (GtkWidget *widget)
{
WidgetOverlay *ovl = WIDGET_OVERLAY (widget);
GList *list;
for (list = ovl->priv->children; list; list = list->next) {
ChildData *cd = (ChildData*) list->data;
gdk_window_set_user_data (cd->offscreen_window, NULL);
gdk_window_destroy (cd->offscreen_window);
cd->offscreen_window = NULL;
}
GTK_WIDGET_CLASS (widget_overlay_parent_class)->unrealize (widget);
}
static void
widget_overlay_size_request (GtkWidget *widget, GtkRequisition *req_min, GtkRequisition *req_nat)
{
WidgetOverlay *ovl = WIDGET_OVERLAY (widget);
gint border_width;
border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
req_min->width = 1;
req_min->height = 1;
req_nat->width = 1;
req_nat->height = 1;
GList *list;
for (list = ovl->priv->children; list; list = list->next) {
ChildData *cd = (ChildData*) list->data;
if (gtk_widget_get_visible (cd->child) && !cd->is_tooltip) {
GtkRequisition child_req_min, child_req_nat;
gtk_widget_get_preferred_size (cd->child, &child_req_min, &child_req_nat);
if (cd->halign == WIDGET_OVERLAY_ALIGN_FILL) {
req_min->width = MAX (border_width * 2 + child_req_min.width,
req_min->width);
req_nat->width = MAX (border_width * 2 + child_req_nat.width,
req_nat->width);
}
else {
req_min->width = MAX (border_width * 2 + child_req_min.width * cd->scale,
req_min->width);
req_nat->width = MAX (border_width * 2 + child_req_nat.width * cd->scale,
req_nat->width);
}
if (cd->valign == WIDGET_OVERLAY_ALIGN_FILL) {
req_min->height = MAX (border_width * 2 + child_req_min.height,
req_min->height);
req_nat->height = MAX (border_width * 2 + child_req_nat.height,
req_nat->height);
}
else {
req_min->height = MAX (border_width * 2 + child_req_min.height * cd->scale,
req_min->height);
req_nat->height = MAX (border_width * 2 + child_req_nat.height * cd->scale,
req_nat->height);
}
}
}
}
static void
widget_overlay_forall (GtkContainer *container,
G_GNUC_UNUSED gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
WidgetOverlay *ovl = WIDGET_OVERLAY (container);
g_return_if_fail (callback != NULL);
GList *list, *copy;
copy = g_list_copy (ovl->priv->children);
for (list = copy; list; list = list->next) {
ChildData *cd = (ChildData*) list->data;
(*callback) (cd->child, callback_data);
}
g_list_free (copy);
}
static void
widget_overlay_finalize (GObject *obj)
{
WidgetOverlay *ovl = WIDGET_OVERLAY (obj);
if (ovl->priv->children) {
GList *list;
for (list = ovl->priv->children; list; list = list->next) {
ChildData *cd = (ChildData*) list->data;
g_free (cd);
}
g_list_free (ovl->priv->children);
}
g_free (ovl->priv);
if (G_OBJECT_CLASS (parent_class)->finalize)
G_OBJECT_CLASS (parent_class)->finalize (obj);
}
static void
widget_overlay_remove (GtkContainer *container, GtkWidget *widget)
{
WidgetOverlay *ovl = WIDGET_OVERLAY (container);
gboolean was_visible;
was_visible = gtk_widget_get_visible (widget);
GList *list;
for (list = ovl->priv->children; list; list = list->next) {
ChildData *cd = (ChildData*) list->data;
if (cd->child == widget) {
gtk_widget_unparent (widget);
ovl->priv->children = g_list_remove (ovl->priv->children, cd);
g_free (cd);
if (was_visible && gtk_widget_get_visible (GTK_WIDGET (container)))
gtk_widget_queue_resize (GTK_WIDGET (container));
break;
}
}
}
static void
widget_overlay_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec)
{
WidgetOverlay *ovl = WIDGET_OVERLAY (object);
if (ovl->priv) {
switch (param_id) {
case PROP_ADD_SCALE: {
gboolean has_scale = FALSE;
if (ovl->priv->scale_child &&
(ovl->priv->scale_child->alpha > 0.))
has_scale = TRUE;
g_value_set_boolean (value, has_scale);
break;
}
}
}
}
static gboolean
widget_overlay_draw (GtkWidget *widget, cairo_t *cr)
{
WidgetOverlay *ovl = WIDGET_OVERLAY (widget);
GdkWindow *window;
GtkAllocation area;
gtk_widget_get_allocation (widget, &area);
window = gtk_widget_get_window (widget);
if (gtk_cairo_should_draw_window (cr, window)) {
GList *list;
for (list = ovl->priv->children; list; list = list->next) {
ChildData *cd = (ChildData*) list->data;
if (gtk_widget_get_visible (cd->child)) {
cairo_surface_t *surface;
GtkAllocation child_area;
double x, y;
gtk_widget_get_allocation (cd->child, &child_area);
child_area.width *= cd->scale;
child_area.height *= cd->scale;
switch (cd->halign) {
case WIDGET_OVERLAY_ALIGN_FILL:
case WIDGET_OVERLAY_ALIGN_START:
x = 0;
break;
case WIDGET_OVERLAY_ALIGN_END:
x = area.width - child_area.width;
break;
case WIDGET_OVERLAY_ALIGN_CENTER:
x = (area.width - child_area.width) / 2.;
break;
}
switch (cd->valign) {
case WIDGET_OVERLAY_ALIGN_FILL:
case WIDGET_OVERLAY_ALIGN_START:
y = 0;
break;
case WIDGET_OVERLAY_ALIGN_END:
y = area.height - child_area.height;
break;
case WIDGET_OVERLAY_ALIGN_CENTER:
y = (area.height - child_area.height) / 2.;
break;
}
surface = gdk_offscreen_window_get_surface (cd->offscreen_window);
if (cd->scale == 1.) {
cairo_set_source_surface (cr, surface, x, y);
cairo_paint_with_alpha (cr, cd->alpha);
}
else {
cairo_save (cr);
cairo_scale (cr, cd->scale, cd->scale);
cairo_set_source_surface (cr, surface, x/cd->scale, y/cd->scale);
cairo_paint_with_alpha (cr, cd->alpha);
cairo_restore (cr);
}
cd->x = x;
cd->y = y;
}
if (list->next &&
((ChildData*) list->next->data == ovl->priv->scale_child) &&
(ovl->priv->scale_child->alpha > 0.)) {
cairo_set_source_rgba (cr, 0., 0., 0., .3);
cairo_rectangle (cr, 0, 0,
area.width, area.height);
cairo_fill (cr);
}
}
}
else {
GList *list;
for (list = ovl->priv->children; list; list = list->next) {
ChildData *cd = (ChildData*) list->data;
if (gtk_cairo_should_draw_window (cr, cd->offscreen_window))
gtk_container_propagate_draw (GTK_CONTAINER (widget), cd->child, cr);
}
}
return TRUE;
}
static void
widget_overlay_size_allocate (GtkWidget *widget, GtkAllocation *allocation)
{
WidgetOverlay *ovl = WIDGET_OVERLAY (widget);
gint border_width;
gint w, h;
gtk_widget_set_allocation (widget, allocation);
border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
w = allocation->width - border_width * 2;
h = allocation->height - border_width * 2;
if (gtk_widget_get_realized (widget)) {
GdkWindow *win;
win = gtk_widget_get_window (widget);
gdk_window_move_resize (win,
allocation->x + border_width,
allocation->y + border_width,
w, h);
}
GList *list;
for (list = ovl->priv->children; list; list = list->next) {
ChildData *cd = (ChildData*) list->data;
if (gtk_widget_get_visible (cd->child)){
GtkRequisition child_requisition;
GtkAllocation child_allocation;
gtk_widget_get_preferred_size (cd->child, &child_requisition, NULL);
child_allocation.x = 0;
child_allocation.y = 0;
child_allocation.height = child_requisition.height;
child_allocation.width = child_requisition.width;
if (cd->halign == WIDGET_OVERLAY_ALIGN_FILL)
child_allocation.width = w / cd->scale;
if ((cd->valign == WIDGET_OVERLAY_ALIGN_FILL) ||
(cd == ovl->priv->scale_child))
child_allocation.height = h / cd->scale;
if (cd->is_tooltip) {
cd->scale = 1.;
if ((allocation->width > 0) && (allocation->height > 0)) {
if (child_allocation.width > allocation->width)
cd->scale = (gdouble) allocation->width /
(gdouble) child_allocation.width;
if (child_allocation.height > allocation->height) {
if (cd->scale > ((gdouble) allocation->height /
(gdouble) child_allocation.height))
cd->scale = (gdouble) allocation->height /
(gdouble) child_allocation.height;
}
}
}
if (gtk_widget_get_realized (widget))
gdk_window_move_resize (cd->offscreen_window,
child_allocation.x,
child_allocation.y,
child_allocation.width,
child_allocation.height);
child_allocation.x = child_allocation.y = 0;
gtk_widget_size_allocate (cd->child, &child_allocation);
}
}
}
static void
widget_overlay_realize (GtkWidget *widget)
{
WidgetOverlay *ovl = WIDGET_OVERLAY (widget);
GdkWindowAttr attributes;
gint attributes_mask;
gint border_width;
GtkRequisition child_requisition;
GtkAllocation allocation;
gtk_widget_set_realized (widget, TRUE);
border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
gtk_widget_get_allocation (widget, &allocation);
attributes.x = allocation.x + border_width;
attributes.y = allocation.y + border_width;
attributes.width = allocation.width - 2 * border_width;
attributes.height = allocation.height - 2 * border_width;
attributes.window_type = GDK_WINDOW_CHILD;
attributes.event_mask = gtk_widget_get_events (widget)
| GDK_EXPOSURE_MASK
| GDK_POINTER_MOTION_MASK
| GDK_BUTTON_PRESS_MASK
| GDK_BUTTON_RELEASE_MASK
| GDK_SCROLL_MASK
| GDK_ENTER_NOTIFY_MASK
| GDK_LEAVE_NOTIFY_MASK;
attributes.visual = gtk_widget_get_visual (widget);
attributes.wclass = GDK_INPUT_OUTPUT;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
GdkWindow *win;
win = gdk_window_new (gtk_widget_get_parent_window (widget),
&attributes, attributes_mask);
gtk_widget_set_window (widget, win);
gdk_window_set_user_data (win, widget);
g_signal_connect (win, "pick-embedded-child",
G_CALLBACK (pick_offscreen_child), ovl);
GtkStyleContext *style;
style = gtk_widget_get_style_context (widget);
gtk_style_context_set_background (style, win);
/* offscreen windows */
attributes.window_type = GDK_WINDOW_OFFSCREEN;
GList *list;
for (list = ovl->priv->children; list; list = list->next) {
ChildData *cd = (ChildData*) list->data;
child_requisition.width = child_requisition.height = 0;
if (gtk_widget_get_visible (cd->child)) {
GtkAllocation allocation;
gtk_widget_get_allocation (cd->child, &allocation);
attributes.width = allocation.width;
attributes.height = allocation.height;
}
cd->offscreen_window = gdk_window_new (NULL, &attributes, attributes_mask);
gdk_window_set_user_data (cd->offscreen_window, widget);
gtk_widget_set_parent_window (cd->child, cd->offscreen_window);
gdk_offscreen_window_set_embedder (cd->offscreen_window, win);
g_signal_connect (cd->offscreen_window, "to-embedder",
G_CALLBACK (offscreen_window_to_parent), ovl);
g_signal_connect (cd->offscreen_window, "from-embedder",
G_CALLBACK (offscreen_window_from_parent), ovl);
gtk_style_context_set_background (style, cd->offscreen_window);
gdk_window_show (cd->offscreen_window);
}
}
static gboolean
widget_overlay_event (GtkWidget *widget, GdkEvent *event)
{
GdkEventScroll *ev = (GdkEventScroll *) event;
WidgetOverlay *ovl = WIDGET_OVERLAY (widget);
#ifdef GDA_DEBUG_NO
ChildData *cdevent = NULL;
/* find child */
GList *list;
for (list = ovl->priv->children; list; list = list->next) {
ChildData *cd;
cd = (ChildData*) list->data;
if (cd->offscreen_window == ((GdkEventAny*)event)->window) {
cdevent = cd;
break;
}
}
g_print (" CH%d/%d", g_list_index (ovl->priv->children, cdevent), event->type);
#endif
/* tooltip widgets handling */
gboolean tooltip_event = FALSE;
if ((event->type == GDK_BUTTON_PRESS) ||
(event->type == GDK_2BUTTON_PRESS) ||
(event->type == GDK_3BUTTON_PRESS) ||
(event->type == GDK_BUTTON_RELEASE) ||
(event->type == GDK_MOTION_NOTIFY) ||
(event->type == GDK_KEY_PRESS) ||
(event->type == GDK_KEY_RELEASE) ||
(event->type == GDK_ENTER_NOTIFY) ||
(event->type == GDK_LEAVE_NOTIFY) ||
(event->type == GDK_SCROLL))
tooltip_event = TRUE;
if (tooltip_event) {
/*g_print (".");*/
gboolean need_tooltip = FALSE;
GList *list;
for (list = ovl->priv->children; list; list = list->next) {
ChildData *cd;
cd = (ChildData*) list->data;
if (cd->is_tooltip) {
need_tooltip = TRUE;
break;
}
}
if (ovl->priv->idle_timer) {
g_source_remove (ovl->priv->idle_timer);
ovl->priv->idle_timer = 0;
}
if ((event->type != GDK_ENTER_NOTIFY) &&
(event->type != GDK_LEAVE_NOTIFY)) {
gboolean inc_timeout = FALSE;
for (list = ovl->priv->children; list; list = list->next) {
ChildData *cd;
cd = (ChildData*) list->data;
if (cd->is_tooltip && gtk_widget_get_visible (cd->child)) {
inc_timeout = TRUE;
gtk_widget_hide (cd->child);
}
}
if (inc_timeout) {
GtkSettings *settings;
guint t;
settings = gtk_widget_get_settings (widget);
g_object_get (settings, "gtk-tooltip-timeout",
&t, NULL);
if ((ovl->priv->tooltip_ms * 2) < (t * 32))
ovl->priv->tooltip_ms = ovl->priv->tooltip_ms * 2;
}
}
if ((event->type == GDK_LEAVE_NOTIFY) &&
((GdkEventAny*)event)->window == gtk_widget_get_window (GTK_WIDGET (ovl)))
need_tooltip = FALSE;
if (need_tooltip) {
if (ovl->priv->tooltip_ms == 0) {
GtkSettings *settings;
settings = gtk_widget_get_settings (widget);
g_object_get (settings, "gtk-tooltip-timeout",
&(ovl->priv->tooltip_ms), NULL);
}
ovl->priv->idle_timer = g_timeout_add (ovl->priv->tooltip_ms,
(GSourceFunc) idle_timer_cb, ovl);
}
}
if ((event->type != GDK_SCROLL) || !(ev->state & GDK_SHIFT_MASK))
return FALSE;
ChildData *cd = NULL;
cd = get_first_child (ovl);
if (!cd)
return FALSE;
gdouble scale;
scale = cd->scale;
if (ev->direction == GDK_SCROLL_UP)
scale += SCALE_STEP;
else
scale -= SCALE_STEP;
change_widget_scale (ovl, cd, scale);
return TRUE;
}
static void
widget_overlay_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec)
{
WidgetOverlay *ovl = WIDGET_OVERLAY (object);
if (ovl->priv) {
switch (param_id) {
case PROP_ADD_SCALE: {
gboolean need_scale;
need_scale = g_value_get_boolean (value);
if (!need_scale && !ovl->priv->scale_child)
return;
if (need_scale && ovl->priv->scale_child) {
widget_overlay_set_child_props (ovl, ovl->priv->scale_child->child,
WIDGET_OVERLAY_CHILD_ALPHA, .6,
-1);
}
else if (need_scale) {
GtkWidget *box, *wid, *button, *image;
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
wid = gtk_scale_new_with_range (GTK_ORIENTATION_VERTICAL,
SCALE_MIN, SCALE_MAX, SCALE_STEP);
ovl->priv->scale_range = GTK_RANGE (wid);
g_object_set (G_OBJECT (wid), "draw-value", FALSE, NULL);
gtk_box_pack_start (GTK_BOX (box), wid, TRUE, TRUE, 0);
button = gtk_button_new ();
image = gtk_image_new_from_icon_name ("window-close-symbolic",
GTK_ICON_SIZE_MENU);
gtk_container_add (GTK_CONTAINER (button), image);
gtk_container_add (GTK_CONTAINER (box), button);
gtk_widget_set_name (button, "browser-tab-close-button");
g_signal_connect (button, "clicked",
G_CALLBACK (scale_button_clicked_cb), ovl);
gtk_container_add (GTK_CONTAINER (ovl), box);
gtk_widget_show_all (box);
GList *list;
for (list = ovl->priv->children; list; list = list->next) {
ChildData *cd = (ChildData*) list->data;
if (cd->child == box) {
ovl->priv->scale_child = cd;
break;
}
}
g_assert (ovl->priv->scale_child);
ChildData *cd;
cd = get_first_child (ovl);
if (cd)
gtk_range_set_value (ovl->priv->scale_range, cd->scale);
gtk_range_set_inverted (ovl->priv->scale_range, TRUE);
g_signal_connect (wid, "value-changed",
G_CALLBACK (scale_value_changed_cb), ovl);
widget_overlay_set_child_props (ovl, box,
WIDGET_OVERLAY_CHILD_VALIGN,
WIDGET_OVERLAY_ALIGN_FILL,
WIDGET_OVERLAY_CHILD_HALIGN,
WIDGET_OVERLAY_ALIGN_END,
WIDGET_OVERLAY_CHILD_SCALE, 1.,
WIDGET_OVERLAY_CHILD_ALPHA, .6,
-1);
}
else {
widget_overlay_set_child_props (ovl, ovl->priv->scale_child->child,
WIDGET_OVERLAY_CHILD_ALPHA, 0.,
-1);
}
break;
}
}
}
}
static void
ui_formgrid_show (GtkWidget *widget)
{
UiFormGrid *formgrid;
GtkWidget *ovl, *packed;
formgrid = UI_FORMGRID (widget);
if (! formgrid->priv->overlay_grid) {
/* finalize packing */
GtkWidget *sw, *vp;
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw),
GTK_SHADOW_NONE);
gtk_container_add (GTK_CONTAINER (sw), formgrid->priv->raw_grid);
gtk_widget_show_all (sw);
packed = sw;
/* overlay */
ovl = widget_overlay_new ();
formgrid->priv->overlay_grid = ovl;
g_object_set (G_OBJECT (ovl), "add-scale", TRUE, NULL);
g_object_set (G_OBJECT (ovl), "add-scale", FALSE, NULL);
gtk_container_add (GTK_CONTAINER (ovl), packed);
widget_overlay_set_child_props (WIDGET_OVERLAY (ovl), packed,
WIDGET_OVERLAY_CHILD_HALIGN,
WIDGET_OVERLAY_ALIGN_FILL,
WIDGET_OVERLAY_CHILD_VALIGN,
WIDGET_OVERLAY_ALIGN_FILL,
WIDGET_OVERLAY_CHILD_SCALE, .9,
-1);
gtk_widget_show (ovl);
gtk_notebook_append_page (GTK_NOTEBOOK (formgrid->priv->nb), ovl, NULL);
}
if (! formgrid->priv->overlay_form) {
/* finalize packing */
if (formgrid->priv->scroll_form) {
GtkWidget *sw, *vp;
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw),
GTK_SHADOW_NONE);
vp = gtk_viewport_new (NULL, NULL);
gtk_widget_set_name (vp, "gdaui-transparent-background");
gtk_container_add (GTK_CONTAINER (sw), vp);
gtk_viewport_set_shadow_type (GTK_VIEWPORT (vp), GTK_SHADOW_NONE);
gtk_container_add (GTK_CONTAINER (vp), formgrid->priv->raw_form);
gtk_widget_show_all (sw);
packed = sw;
}
else {
gtk_widget_show (formgrid->priv->raw_form);
packed = formgrid->priv->raw_form;
}
/* overlay */
ovl = widget_overlay_new ();
formgrid->priv->overlay_form = ovl;
g_object_set (G_OBJECT (ovl), "add-scale", TRUE, NULL);
g_object_set (G_OBJECT (ovl), "add-scale", FALSE, NULL);
gtk_container_add (GTK_CONTAINER (ovl), packed);
widget_overlay_set_child_props (WIDGET_OVERLAY (ovl), packed,
WIDGET_OVERLAY_CHILD_HALIGN,
WIDGET_OVERLAY_ALIGN_FILL,
WIDGET_OVERLAY_CHILD_VALIGN,
WIDGET_OVERLAY_ALIGN_FILL,
WIDGET_OVERLAY_CHILD_SCALE, 1.,
-1);
gtk_widget_show (ovl);
gtk_notebook_append_page (GTK_NOTEBOOK (formgrid->priv->nb), ovl, NULL);
gtk_notebook_set_current_page (GTK_NOTEBOOK (formgrid->priv->nb),
0);
}
((GtkWidgetClass *)parent_class)->show (widget);
if (! formgrid->priv->autoupdate_possible)
gtk_widget_hide (formgrid->priv->autoupdate_toggle);
}