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index 4daea0f961a9be0c79e7de9f562f44450ff3017d..ba0b6a7efa31f9aa822b0c17bf2cc1d062d85c1a 100644 (file)
--- a/src/ui/previewholder.cpp
+++ b/src/ui/previewholder.cpp
VBox(),
PreviewFillable(),
_scroller(0),
+ _insides(0),
+ _prefCols(0),
+ _updatesFrozen(false),
_anchor(Gtk::ANCHOR_CENTER),
- _baseSize(Gtk::ICON_SIZE_MENU),
- _view(VIEW_TYPE_LIST)
+ _baseSize(PREVIEW_SIZE_SMALL),
+ _ratio(100),
+ _view(VIEW_TYPE_LIST),
+ _wrap(false)
{
_scroller = manage(new Gtk::ScrolledWindow());
_insides = manage(new Gtk::Table( 1, 2 ));
{
items.clear();
_prefCols = 0;
+ // Kludge to restore scrollbars
+ if ( !_wrap && (_view != VIEW_TYPE_LIST) && (_anchor == Gtk::ANCHOR_NORTH || _anchor == Gtk::ANCHOR_SOUTH) ) {
+ dynamic_cast<Gtk::ScrolledWindow*>(_scroller)->set_policy( Gtk::POLICY_AUTOMATIC, Gtk::POLICY_NEVER );
+ }
rebuildUI();
}
void PreviewHolder::addPreview( Previewable* preview )
{
items.push_back(preview);
+ if ( !_updatesFrozen )
+ {
+ int i = items.size() - 1;
- int i = items.size() - 1;
- if ( _view == VIEW_TYPE_LIST ) {
- Gtk::Widget* label = manage(preview->getPreview(PREVIEW_STYLE_BLURB, VIEW_TYPE_LIST, _baseSize));
- Gtk::Widget* thing = manage(preview->getPreview(PREVIEW_STYLE_PREVIEW, VIEW_TYPE_LIST, _baseSize));
+ if ( _view == VIEW_TYPE_LIST ) {
+ Gtk::Widget* label = manage(preview->getPreview(PREVIEW_STYLE_BLURB, VIEW_TYPE_LIST, _baseSize, _ratio));
+ Gtk::Widget* thing = manage(preview->getPreview(PREVIEW_STYLE_PREVIEW, VIEW_TYPE_LIST, _baseSize, _ratio));
- _insides->attach( *thing, 0, 1, i, i+1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND );
- _insides->attach( *label, 1, 2, i, i+1, Gtk::FILL|Gtk::EXPAND, Gtk::SHRINK );
- } else {
- Gtk::Widget* thing = manage(items[i]->getPreview(PREVIEW_STYLE_PREVIEW, VIEW_TYPE_GRID, _baseSize));
- int width = _baseSize == Gtk::ICON_SIZE_MENU ? COLUMNS_FOR_SMALL : COLUMNS_FOR_LARGE;
- if ( _prefCols > 0 ) {
- width = _prefCols;
- }
- int col = i % width;
- int row = i / width;
- if ( col == 0 ) {
- // we just started a new row
- _insides->resize( row + 1, width );
+ _insides->attach( *thing, 0, 1, i, i+1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND );
+ _insides->attach( *label, 1, 2, i, i+1, Gtk::FILL|Gtk::EXPAND, Gtk::SHRINK );
+ } else {
+ Gtk::Widget* thing = manage(items[i]->getPreview(PREVIEW_STYLE_PREVIEW, VIEW_TYPE_GRID, _baseSize, _ratio));
+
+ int width = 1;
+ int height = 1;
+ calcGridSize( thing, items.size(), width, height );
+ int col = i % width;
+ int row = i / width;
+
+ if ( _insides && width > (int)_insides->property_n_columns() ) {
+ std::vector<Gtk::Widget*>kids = _insides->get_children();
+ int oldWidth = (int)_insides->property_n_columns();
+ int childCount = (int)kids.size();
+// g_message(" %3d resize from %d to %d (r:%d, c:%d) with %d children", i, oldWidth, width, row, col, childCount );
+ _insides->resize( height, width );
+
+ for ( int j = oldWidth; j < childCount; j++ ) {
+ Gtk::Widget* target = kids[childCount - (j + 1)];
+ int col2 = j % width;
+ int row2 = j / width;
+ Glib::RefPtr<Gtk::Widget> handle(target);
+ _insides->remove( *target );
+ _insides->attach( *target, col2, col2+1, row2, row2+1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND );
+ }
+ } else if ( col == 0 ) {
+ // we just started a new row
+ _insides->resize( row + 1, width );
+ }
+ _insides->attach( *thing, col, col+1, row, row+1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND );
}
- _insides->attach( *thing, col, col+1, row, row+1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND );
+
+ _scroller->show_all_children();
+ _scroller->queue_draw();
}
+}
- _scroller->show_all_children();
- _scroller->queue_draw();
+void PreviewHolder::freezeUpdates()
+{
+ _updatesFrozen = true;
+}
+
+void PreviewHolder::thawUpdates()
+{
+ _updatesFrozen = false;
+ rebuildUI();
}
-void PreviewHolder::setStyle(Gtk::BuiltinIconSize size, ViewType view)
+void PreviewHolder::setStyle( ::PreviewSize size, ViewType view, guint ratio )
{
- if ( size != _baseSize || view != _view ) {
+ if ( size != _baseSize || view != _view || ratio != _ratio ) {
_baseSize = size;
_view = view;
+ _ratio = ratio;
+ // Kludge to restore scrollbars
+ if ( !_wrap && (_view != VIEW_TYPE_LIST) && (_anchor == Gtk::ANCHOR_NORTH || _anchor == Gtk::ANCHOR_SOUTH) ) {
+ dynamic_cast<Gtk::ScrolledWindow*>(_scroller)->set_policy( Gtk::POLICY_AUTOMATIC, Gtk::POLICY_NEVER );
+ }
rebuildUI();
}
}
case Gtk::ANCHOR_NORTH:
case Gtk::ANCHOR_SOUTH:
{
- dynamic_cast<Gtk::ScrolledWindow*>(_scroller)->set_policy( Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC );
+ dynamic_cast<Gtk::ScrolledWindow*>(_scroller)->set_policy( Gtk::POLICY_AUTOMATIC, _wrap ? Gtk::POLICY_AUTOMATIC : Gtk::POLICY_NEVER );
}
break;
}
}
+void PreviewHolder::setWrap( bool b )
+{
+ if ( b != _wrap ) {
+ _wrap = b;
+ switch ( _anchor )
+ {
+ case Gtk::ANCHOR_NORTH:
+ case Gtk::ANCHOR_SOUTH:
+ {
+ dynamic_cast<Gtk::ScrolledWindow*>(_scroller)->set_policy( Gtk::POLICY_AUTOMATIC, _wrap ? Gtk::POLICY_AUTOMATIC : Gtk::POLICY_NEVER );
+ }
+ break;
+ default:
+ {
+ (void)0;
+ // do nothing;
+ }
+ }
+ rebuildUI();
+ }
+}
+
void PreviewHolder::setColumnPref( int cols )
{
_prefCols = cols;
// g_message( "on_size_allocate(%d, %d) (%d, %d)", allocation.get_x(), allocation.get_y(), allocation.get_width(), allocation.get_height() );
// g_message(" anchor:%d", _anchor);
Gtk::VBox::on_size_allocate( allocation );
+
+ if ( _insides && !_wrap && (_view != VIEW_TYPE_LIST) && (_anchor == Gtk::ANCHOR_NORTH || _anchor == Gtk::ANCHOR_SOUTH) ) {
+ Gtk::Requisition req;
+ _insides->size_request(req);
+ gint delta = allocation.get_width() - req.width;
+
+ if ( (delta > 4) && req.height < allocation.get_height() ) {
+ dynamic_cast<Gtk::ScrolledWindow*>(_scroller)->set_policy( Gtk::POLICY_NEVER, Gtk::POLICY_NEVER );
+ } else {
+ dynamic_cast<Gtk::ScrolledWindow*>(_scroller)->set_policy( Gtk::POLICY_AUTOMATIC, Gtk::POLICY_NEVER );
+ }
+ }
}
void PreviewHolder::on_size_request( Gtk::Requisition* requisition )
// g_message(" items:%d", (int)items.size());
}
+void PreviewHolder::calcGridSize( const Gtk::Widget* thing, int itemCount, int& width, int& height )
+{
+ width = itemCount;
+ height = 1;
+
+ if ( _anchor == Gtk::ANCHOR_SOUTH || _anchor == Gtk::ANCHOR_NORTH ) {
+ Gtk::Requisition req;
+ _scroller->size_request(req);
+ int currW = _scroller->get_width();
+ if ( currW > req.width ) {
+ req.width = currW;
+ }
+
+ Gtk::HScrollbar* hs = dynamic_cast<Gtk::ScrolledWindow*>(_scroller)->get_hscrollbar();
+ if ( hs ) {
+ Gtk::Requisition scrollReq;
+ hs->size_request(scrollReq);
+
+ // the +8 is a temporary hack
+ req.height -= scrollReq.height + 8;
+ }
+
+ Gtk::Requisition req2;
+ const_cast<Gtk::Widget*>(thing)->size_request(req2);
+
+ int h2 = ((req2.height > 0) && (req.height > req2.height)) ? (req.height / req2.height) : 1;
+ int w2 = ((req2.width > 0) && (req.width > req2.width)) ? (req.width / req2.width) : 1;
+ width = (itemCount + (h2 - 1)) / h2;
+ if ( width < w2 ) {
+ width = w2;
+ }
+ } else {
+ width = (_baseSize == PREVIEW_SIZE_SMALL || _baseSize == PREVIEW_SIZE_TINY) ? COLUMNS_FOR_SMALL : COLUMNS_FOR_LARGE;
+ if ( _prefCols > 0 ) {
+ width = _prefCols;
+ }
+ height = (itemCount + (width - 1)) / width;
+ if ( height < 1 ) {
+ height = 1;
+ }
+ }
+}
+
void PreviewHolder::rebuildUI()
{
_scroller->remove();
_insides->set_col_spacings( 8 );
for ( unsigned int i = 0; i < items.size(); i++ ) {
- Gtk::Widget* label = manage(items[i]->getPreview(PREVIEW_STYLE_BLURB, _view, _baseSize));
+ Gtk::Widget* label = manage(items[i]->getPreview(PREVIEW_STYLE_BLURB, _view, _baseSize, _ratio));
//label->set_alignment(Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER);
- Gtk::Widget* thing = manage(items[i]->getPreview(PREVIEW_STYLE_PREVIEW, _view, _baseSize));
+ Gtk::Widget* thing = manage(items[i]->getPreview(PREVIEW_STYLE_PREVIEW, _view, _baseSize, _ratio));
_insides->attach( *thing, 0, 1, i, i+1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND );
_insides->attach( *label, 1, 2, i, i+1, Gtk::FILL|Gtk::EXPAND, Gtk::SHRINK );
} else {
int col = 0;
int row = 0;
- int width = items.size();
+ int width = 2;
int height = 1;
for ( unsigned int i = 0; i < items.size(); i++ ) {
- Gtk::Widget* thing = manage(items[i]->getPreview(PREVIEW_STYLE_PREVIEW, _view, _baseSize));
+ Gtk::Widget* thing = manage(items[i]->getPreview(PREVIEW_STYLE_PREVIEW, _view, _baseSize, _ratio));
if ( !_insides ) {
- if ( _anchor == Gtk::ANCHOR_SOUTH || _anchor == Gtk::ANCHOR_NORTH ) {
- // pad on out
- Gtk::Requisition req = _scroller->size_request();
-
- //Gtk::VScrollbar* vs = dynamic_cast<Gtk::ScrolledWindow*>(_scroller)->get_vscrollbar();
- Gtk::HScrollbar* hs = dynamic_cast<Gtk::ScrolledWindow*>(_scroller)->get_hscrollbar();
- if ( hs ) {
- Gtk::Requisition scrollReq = hs->size_request();
-
- // the +8 is a temporary hack
- req.height -= scrollReq.height + 8;
- }
-
- Gtk::Requisition req2 = thing->size_request();
-
- int h2 = req.height / req2.height;
- int w2 = req.width / req2.width;
- if ( (h2 > 1) && (w2 < (int)items.size()) ) {
- width = (items.size() + (h2 - 1)) / h2;
- }
-
- } else {
- width = _baseSize == Gtk::ICON_SIZE_MENU ? COLUMNS_FOR_SMALL : COLUMNS_FOR_LARGE;
- if ( _prefCols > 0 ) {
- width = _prefCols;
- }
- height = (items.size() + (width - 1)) / width;
- if ( height < 1 ) {
- height = 1;
- }
- }
+ calcGridSize( thing, items.size(), width, height );
_insides = manage(new Gtk::Table( height, width ));
}