static void
esm_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
ESelectionModel *esm = E_SELECTION_MODEL (object);
switch (property_id) {
case PROP_SORTER:
drop_sorter (esm);
add_sorter (
esm, g_value_get_object (value) ?
E_SORTER (g_value_get_object (value)) : NULL);
break;
case PROP_SELECTION_MODE:
esm->mode = g_value_get_int (value);
if (esm->mode == GTK_SELECTION_SINGLE) {
gint cursor_row = e_selection_model_cursor_row (esm);
gint cursor_col = e_selection_model_cursor_col (esm);
e_selection_model_do_something (esm, cursor_row, cursor_col, 0);
}
break;
case PROP_CURSOR_MODE:
esm->cursor_mode = g_value_get_int (value);
break;
}
}
static void
reflow_columns (EReflow *reflow)
{
GSList *list;
int count;
int start;
int i;
int column_count, column_start;
double running_height;
if (reflow->reflow_from_column <= 1) {
start = 0;
column_count = 1;
column_start = 0;
}
else {
/* we start one column before the earliest new entry,
so we can handle the case where the new entry is
inserted at the start of the column */
column_start = reflow->reflow_from_column - 1;
start = reflow->columns[column_start];
column_count = column_start + 1;
}
list = NULL;
running_height = E_REFLOW_BORDER_WIDTH;
count = reflow->count - start;
for (i = start; i < count; i++) {
int unsorted = e_sorter_sorted_to_model (E_SORTER (reflow->sorter), i);
if (i != 0 && running_height + reflow->heights[unsorted] + E_REFLOW_BORDER_WIDTH > reflow->height) {
list = g_slist_prepend (list, GINT_TO_POINTER(i));
column_count ++;
running_height = E_REFLOW_BORDER_WIDTH * 2 + reflow->heights[unsorted];
} else
running_height += reflow->heights[unsorted] + E_REFLOW_BORDER_WIDTH;
}
reflow->column_count = column_count;
reflow->columns = g_renew (int, reflow->columns, column_count);
column_count --;
for (; column_count > column_start; column_count--) {
GSList *to_free;
reflow->columns[column_count] = GPOINTER_TO_INT(list->data);
to_free = list;
list = list->next;
g_slist_free_1 (to_free);
}
reflow->columns[column_start] = start;
queue_incarnate (reflow);
reflow->need_reflow_columns = FALSE;
reflow->reflow_from_column = -1;
}
static void
items_inserted (EReflowModel *model, int position, int count, EReflow *reflow)
{
int i, oldcount;
if (position < 0 || position > reflow->count)
return;
oldcount = reflow->count;
reflow->count += count;
if (reflow->count > reflow->allocated_count) {
while (reflow->count > reflow->allocated_count)
reflow->allocated_count += 256;
reflow->heights = g_renew (int, reflow->heights, reflow->allocated_count);
reflow->items = g_renew (GnomeCanvasItem *, reflow->items, reflow->allocated_count);
}
memmove (reflow->heights + position + count, reflow->heights + position, (reflow->count - position - count) * sizeof (int));
memmove (reflow->items + position + count, reflow->items + position, (reflow->count - position - count) * sizeof (GnomeCanvasItem *));
for (i = position; i < position + count; i++) {
reflow->items[i] = NULL;
reflow->heights[i] = e_reflow_model_height (reflow->model, i, GNOME_CANVAS_GROUP (reflow));
}
e_selection_model_simple_set_row_count (E_SELECTION_MODEL_SIMPLE (reflow->selection), reflow->count);
if (position == oldcount)
e_sorter_array_append (reflow->sorter, count);
else
e_sorter_array_set_count (reflow->sorter, reflow->count);
for (i = position; i < position + count; i ++) {
int sorted = e_sorter_model_to_sorted (E_SORTER (reflow->sorter), i);
int c;
for (c = reflow->column_count - 1; c >= 0; c--) {
int start_of_column = reflow->columns[c];
if (start_of_column <= sorted) {
if (reflow->reflow_from_column == -1
|| reflow->reflow_from_column > c) {
reflow->reflow_from_column = c;
}
break;
}
}
}
reflow->need_reflow_columns = TRUE;
set_empty (reflow);
e_canvas_item_request_reflow(GNOME_CANVAS_ITEM (reflow));
}
static void
e_reflow_reflow( GnomeCanvasItem *item, int flags )
{
EReflow *reflow = E_REFLOW(item);
gdouble old_width;
gdouble running_width;
gdouble running_height;
int next_column;
int i;
if (! (GTK_OBJECT_FLAGS (reflow) & GNOME_CANVAS_ITEM_REALIZED))
return;
if (reflow->need_reflow_columns) {
reflow_columns (reflow);
}
old_width = reflow->width;
running_width = E_REFLOW_BORDER_WIDTH;
running_height = E_REFLOW_BORDER_WIDTH;
next_column = 1;
for (i = 0; i < reflow->count; i++) {
int unsorted = e_sorter_sorted_to_model (E_SORTER (reflow->sorter), i);
if (next_column < reflow->column_count && i == reflow->columns[next_column]) {
running_height = E_REFLOW_BORDER_WIDTH;
running_width += reflow->column_width + E_REFLOW_FULL_GUTTER;
next_column ++;
}
if (unsorted >= 0 && reflow->items[unsorted]) {
e_canvas_item_move_absolute(GNOME_CANVAS_ITEM(reflow->items[unsorted]),
(double) running_width,
(double) running_height);
running_height += reflow->heights[unsorted] + E_REFLOW_BORDER_WIDTH;
}
}
reflow->width = running_width + reflow->column_width + E_REFLOW_BORDER_WIDTH;
if ( reflow->width < reflow->minimum_width )
reflow->width = reflow->minimum_width;
if (old_width != reflow->width)
e_canvas_item_request_parent_reflow(item);
}
static void
incarnate (EReflow *reflow)
{
int column_width;
int first_column;
int last_column;
int first_cell;
int last_cell;
int i;
GtkAdjustment *adjustment = gtk_layout_get_hadjustment (GTK_LAYOUT (GNOME_CANVAS_ITEM (reflow)->canvas));
column_width = reflow->column_width;
first_column = adjustment->value - 1 + E_REFLOW_BORDER_WIDTH;
first_column /= column_width + E_REFLOW_FULL_GUTTER;
last_column = adjustment->value + adjustment->page_size + 1 - E_REFLOW_BORDER_WIDTH - E_REFLOW_DIVIDER_WIDTH;
last_column /= column_width + E_REFLOW_FULL_GUTTER;
last_column ++;
if (first_column >= 0 && first_column < reflow->column_count)
first_cell = reflow->columns[first_column];
else
first_cell = 0;
if (last_column >= 0 && last_column < reflow->column_count)
last_cell = reflow->columns[last_column];
else
last_cell = reflow->count;
for (i = first_cell; i < last_cell; i++) {
int unsorted = e_sorter_sorted_to_model (E_SORTER (reflow->sorter), i);
if (reflow->items[unsorted] == NULL) {
if (reflow->model) {
reflow->items[unsorted] = e_reflow_model_incarnate (reflow->model, unsorted, GNOME_CANVAS_GROUP (reflow));
g_object_set (reflow->items[unsorted],
"selected", e_selection_model_is_row_selected(E_SELECTION_MODEL(reflow->selection), unsorted),
"width", (double) reflow->column_width,
NULL);
}
}
}
reflow->incarnate_idle_id = 0;
}
static void
item_removed (EReflowModel *model, int i, EReflow *reflow)
{
int c;
int sorted;
if (i < 0 || i >= reflow->count)
return;
sorted = e_sorter_model_to_sorted (E_SORTER (reflow->sorter), i);
for (c = reflow->column_count - 1; c >= 0; c--) {
int start_of_column = reflow->columns[c];
if (start_of_column <= sorted) {
if (reflow->reflow_from_column == -1
|| reflow->reflow_from_column > c) {
reflow->reflow_from_column = c;
}
break;
}
}
if (reflow->items[i])
gtk_object_destroy (GTK_OBJECT (reflow->items[i]));
memmove (reflow->heights + i, reflow->heights + i + 1, (reflow->count - i - 1) * sizeof (int));
memmove (reflow->items + i, reflow->items + i + 1, (reflow->count - i - 1) * sizeof (GnomeCanvasItem *));
reflow->count --;
reflow->heights [reflow->count] = 0;
reflow->items [reflow->count] = NULL;
reflow->need_reflow_columns = TRUE;
set_empty (reflow);
e_canvas_item_request_reflow(GNOME_CANVAS_ITEM (reflow));
e_sorter_array_set_count (reflow->sorter, reflow->count);
e_selection_model_simple_delete_rows (E_SELECTION_MODEL_SIMPLE (reflow->selection), i, 1);
}
static gboolean
e_reflow_event (GnomeCanvasItem *item, GdkEvent *event)
{
EReflow *reflow;
int return_val = FALSE;
reflow = E_REFLOW (item);
switch( event->type )
{
case GDK_KEY_PRESS:
return_val = e_selection_model_key_press(reflow->selection, (GdkEventKey *) event);
break;
#if 0
if (event->key.keyval == GDK_Tab ||
event->key.keyval == GDK_KP_Tab ||
event->key.keyval == GDK_ISO_Left_Tab) {
int i;
int count;
count = reflow->count;
for (i = 0; i < count; i++) {
int unsorted = e_sorter_sorted_to_model (E_SORTER (reflow->sorter), i);
GnomeCanvasItem *item = reflow->items[unsorted];
EFocus has_focus;
if (item) {
g_object_get(item,
"has_focus", &has_focus,
NULL);
if (has_focus) {
if (event->key.state & GDK_SHIFT_MASK) {
if (i == 0)
return FALSE;
i--;
} else {
if (i == count - 1)
return FALSE;
i++;
}
unsorted = e_sorter_sorted_to_model (E_SORTER (reflow->sorter), i);
if (reflow->items[unsorted] == NULL) {
reflow->items[unsorted] = e_reflow_model_incarnate (reflow->model, unsorted, GNOME_CANVAS_GROUP (reflow));
}
item = reflow->items[unsorted];
gnome_canvas_item_set(item,
"has_focus", (event->key.state & GDK_SHIFT_MASK) ? E_FOCUS_END : E_FOCUS_START,
NULL);
return TRUE;
}
}
}
}
#endif
case GDK_BUTTON_PRESS:
switch(event->button.button)
{
case 1:
{
GdkEventButton *button = (GdkEventButton *) event;
double n_x, max_x;
n_x = button->x;
n_x += E_REFLOW_BORDER_WIDTH + E_REFLOW_DIVIDER_WIDTH;
n_x = fmod(n_x,(reflow->column_width + E_REFLOW_FULL_GUTTER));
max_x = E_REFLOW_BORDER_WIDTH;
max_x += (reflow->column_width + E_REFLOW_FULL_GUTTER) * reflow->column_count;
if ( button->y >= E_REFLOW_BORDER_WIDTH && button->y <= reflow->height - E_REFLOW_BORDER_WIDTH && n_x < E_REFLOW_FULL_GUTTER && max_x > button->x ) {
/* don't allow to drag the first line*/
if (e_reflow_pick_line(reflow, button->x) == 0)
return TRUE;
reflow->which_column_dragged = e_reflow_pick_line(reflow, button->x);
reflow->start_x = reflow->which_column_dragged * (reflow->column_width + E_REFLOW_FULL_GUTTER) - E_REFLOW_DIVIDER_WIDTH / 2;
reflow->temp_column_width = reflow->column_width;
reflow->column_drag = TRUE;
gnome_canvas_item_grab (item,
GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK,
reflow->arrow_cursor,
button->time);
reflow->previous_temp_column_width = -1;
reflow->need_column_resize = TRUE;
gnome_canvas_item_request_update(item);
return TRUE;
}
}
break;
case 4:
{
GtkAdjustment *adjustment = gtk_layout_get_hadjustment(GTK_LAYOUT(item->canvas));
gdouble new_value = adjustment->value;
new_value -= adjustment->step_increment;
gtk_adjustment_set_value(adjustment, new_value);
}
break;
case 5:
{
GtkAdjustment *adjustment = gtk_layout_get_hadjustment(GTK_LAYOUT(item->canvas));
gdouble new_value = adjustment->value;
new_value += adjustment->step_increment;
if ( new_value > adjustment->upper - adjustment->page_size )
new_value = adjustment->upper - adjustment->page_size;
gtk_adjustment_set_value(adjustment, new_value);
}
break;
}
break;
case GDK_BUTTON_RELEASE:
if (reflow->column_drag) {
gdouble old_width = reflow->column_width;
GdkEventButton *button = (GdkEventButton *) event;
GtkAdjustment *adjustment = gtk_layout_get_hadjustment(GTK_LAYOUT(item->canvas));
reflow->temp_column_width = reflow->column_width +
(button->x - reflow->start_x)/(reflow->which_column_dragged - e_reflow_pick_line(reflow, adjustment->value));
if ( reflow->temp_column_width < 50 )
reflow->temp_column_width = 50;
reflow->column_drag = FALSE;
if ( old_width != reflow->temp_column_width ) {
gtk_adjustment_set_value(adjustment, adjustment->value + e_reflow_pick_line(reflow, adjustment->value) * (reflow->temp_column_width - reflow->column_width));
reflow->column_width = reflow->temp_column_width;
adjustment->step_increment = (reflow->column_width + E_REFLOW_FULL_GUTTER) / 2;
adjustment->page_increment = adjustment->page_size - adjustment->step_increment;
gtk_adjustment_changed(adjustment);
e_reflow_resize_children(item);
e_canvas_item_request_reflow(item);
gnome_canvas_request_redraw(item->canvas, 0, 0, reflow->width, reflow->height);
column_width_changed (reflow);
}
reflow->need_column_resize = TRUE;
gnome_canvas_item_request_update(item);
gnome_canvas_item_ungrab (item, button->time);
return TRUE;
}
break;
case GDK_MOTION_NOTIFY:
if (reflow->column_drag) {
double old_width = reflow->temp_column_width;
GdkEventMotion *motion = (GdkEventMotion *) event;
GtkAdjustment *adjustment = gtk_layout_get_hadjustment(GTK_LAYOUT(item->canvas));
reflow->temp_column_width = reflow->column_width +
(motion->x - reflow->start_x)/(reflow->which_column_dragged - e_reflow_pick_line(reflow, adjustment->value));
if (reflow->temp_column_width < 50)
reflow->temp_column_width = 50;
if (old_width != reflow->temp_column_width) {
reflow->need_column_resize = TRUE;
gnome_canvas_item_request_update(item);
}
return TRUE;
} else {
GdkEventMotion *motion = (GdkEventMotion *) event;
double n_x, max_x;
n_x = motion->x;
n_x += E_REFLOW_BORDER_WIDTH + E_REFLOW_DIVIDER_WIDTH;
n_x = fmod(n_x,(reflow->column_width + E_REFLOW_FULL_GUTTER));
max_x = E_REFLOW_BORDER_WIDTH;
max_x += (reflow->column_width + E_REFLOW_FULL_GUTTER) * reflow->column_count;
if ( motion->y >= E_REFLOW_BORDER_WIDTH && motion->y <= reflow->height - E_REFLOW_BORDER_WIDTH && n_x < E_REFLOW_FULL_GUTTER && max_x > motion->x) {
if ( reflow->default_cursor_shown ) {
gdk_window_set_cursor(GTK_WIDGET(item->canvas)->window, reflow->arrow_cursor);
reflow->default_cursor_shown = FALSE;
}
} else
if ( ! reflow->default_cursor_shown ) {
gdk_window_set_cursor(GTK_WIDGET(item->canvas)->window, reflow->default_cursor);
reflow->default_cursor_shown = TRUE;
}
}
break;
case GDK_ENTER_NOTIFY:
if (!reflow->column_drag) {
GdkEventCrossing *crossing = (GdkEventCrossing *) event;
double n_x, max_x;
n_x = crossing->x;
n_x += E_REFLOW_BORDER_WIDTH + E_REFLOW_DIVIDER_WIDTH;
n_x = fmod(n_x,(reflow->column_width + E_REFLOW_FULL_GUTTER));
max_x = E_REFLOW_BORDER_WIDTH;
max_x += (reflow->column_width + E_REFLOW_FULL_GUTTER) * reflow->column_count;
if ( crossing->y >= E_REFLOW_BORDER_WIDTH && crossing->y <= reflow->height - E_REFLOW_BORDER_WIDTH && n_x < E_REFLOW_FULL_GUTTER && max_x > crossing->x) {
if ( reflow->default_cursor_shown ) {
gdk_window_set_cursor(GTK_WIDGET(item->canvas)->window, reflow->arrow_cursor);
reflow->default_cursor_shown = FALSE;
}
}
}
break;
case GDK_LEAVE_NOTIFY:
if (!reflow->column_drag) {
GdkEventCrossing *crossing = (GdkEventCrossing *) event;
double n_x;
n_x = crossing->x;
n_x += E_REFLOW_BORDER_WIDTH + E_REFLOW_DIVIDER_WIDTH;
n_x = fmod(n_x,(reflow->column_width + E_REFLOW_FULL_GUTTER));
if ( !( crossing->y >= E_REFLOW_BORDER_WIDTH && crossing->y <= reflow->height - E_REFLOW_BORDER_WIDTH && n_x < E_REFLOW_FULL_GUTTER ) ) {
if ( ! reflow->default_cursor_shown ) {
gdk_window_set_cursor(GTK_WIDGET(item->canvas)->window, reflow->default_cursor);
reflow->default_cursor_shown = TRUE;
}
}
}
break;
default:
break;
}
if (return_val)
return return_val;
else if (GNOME_CANVAS_ITEM_CLASS( e_reflow_parent_class )->event)
return (* GNOME_CANVAS_ITEM_CLASS( e_reflow_parent_class )->event) (item, event);
else
return FALSE;
}
