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index e73cd740706f5a6fe7eaed2b92df802de3ff41ca..cc2339c9cf3f7dba860d7867a9125d413a34b7bc 100644 (file)
--- a/src/ui/previewholder.cpp
+++ b/src/ui/previewholder.cpp
#include "previewholder.h"
#include <gtkmm/scrolledwindow.h>
+#include <gtkmm/sizegroup.h>
+#include <gtkmm/scrollbar.h>
+
+#define COLUMNS_FOR_SMALL 16
+#define COLUMNS_FOR_LARGE 8
+//#define COLUMNS_FOR_SMALL 48
+//#define COLUMNS_FOR_LARGE 32
namespace Inkscape {
VBox(),
PreviewFillable(),
_scroller(0),
+ _anchor(Gtk::ANCHOR_CENTER),
_baseSize(Gtk::ICON_SIZE_MENU),
_view(VIEW_TYPE_LIST)
{
_scroller = manage(new Gtk::ScrolledWindow());
- Gtk::Table* stuff = manage(new Gtk::Table( 1, 2 ));
- stuff->set_col_spacings( 8 );
- _insides = stuff;
- _scroller->add(*stuff);
+ _insides = manage(new Gtk::Table( 1, 2 ));
+ _insides->set_col_spacings( 8 );
+
+ // Add a container with the scroller and a spacer
+ Gtk::Table* spaceHolder = manage( new Gtk::Table(1, 2) );
+ _scroller->add( *_insides );
+ spaceHolder->attach( *_scroller, 0, 1, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND );
- pack_start(*_scroller, Gtk::PACK_EXPAND_WIDGET);
+ pack_start(*spaceHolder, Gtk::PACK_EXPAND_WIDGET);
}
PreviewHolder::~PreviewHolder()
void PreviewHolder::clear()
{
items.clear();
+ _prefCols = 0;
rebuildUI();
}
void PreviewHolder::addPreview( Previewable* preview )
{
items.push_back(preview);
-
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));
_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 ? 16 : 8;
+
+ int width = 1;
+ int height = 1;
+ calcGridSize( thing, items.size(), width, height );
int col = i % width;
int row = i / width;
+
+ if ( i < 10 ) {
+ g_message( "i:%d width:%d height:%d prop cols:%d", i, width, height, (int)_insides->property_n_columns() );
+ }
+
if ( col == 0 ) {
// we just started a new row
_insides->resize( row + 1, width );
+ } else if ( _insides && width > (int)_insides->property_n_columns() ) {
+ _insides->resize( height, width );
}
_insides->attach( *thing, col, col+1, row, row+1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND );
}
}
}
+void PreviewHolder::setOrientation( Gtk::AnchorType how )
+{
+ if ( _anchor != how )
+ {
+ _anchor = how;
+ switch ( _anchor )
+ {
+ case Gtk::ANCHOR_NORTH:
+ case Gtk::ANCHOR_SOUTH:
+ {
+ dynamic_cast<Gtk::ScrolledWindow*>(_scroller)->set_policy( Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC );
+ }
+ break;
+
+ case Gtk::ANCHOR_EAST:
+ case Gtk::ANCHOR_WEST:
+ {
+ dynamic_cast<Gtk::ScrolledWindow*>(_scroller)->set_policy( Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC );
+ }
+ break;
+
+ default:
+ {
+ dynamic_cast<Gtk::ScrolledWindow*>(_scroller)->set_policy( Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC );
+ }
+ }
+ rebuildUI();
+ }
+}
+
+void PreviewHolder::setColumnPref( int cols )
+{
+ _prefCols = cols;
+}
+
+void PreviewHolder::on_size_allocate( Gtk::Allocation& allocation )
+{
+// 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 );
+}
+
+void PreviewHolder::on_size_request( Gtk::Requisition* requisition )
+{
+// g_message( "on_size_request(%d, %d)", requisition->width, requisition->height );
+ Gtk::VBox::on_size_request( requisition );
+// g_message( " super (%d, %d)", requisition->width, requisition->height );
+// g_message(" anchor:%d", _anchor);
+// 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();
+ 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();
+
+ // 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;
+ width = (itemCount + (h2 - 1)) / h2;
+ if ( width < w2 ) {
+ width = w2;
+ }
+ } else {
+ width = _baseSize == Gtk::ICON_SIZE_MENU ? 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 = 0; // remove() call should have deleted the Gtk::Table.
if ( _view == VIEW_TYPE_LIST ) {
- Gtk::Table* stuff = manage(new Gtk::Table( 1, 2 ));
- _insides = stuff;
- stuff->set_col_spacings( 8 );
+ _insides = manage(new Gtk::Table( 1, 2 ));
+ _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* thing = manage(items[i]->getPreview(PREVIEW_STYLE_PREVIEW, _view, _baseSize));
- stuff->attach( *thing, 0, 1, i, i+1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND );
- stuff->attach( *label, 1, 2, i, i+1, Gtk::FILL|Gtk::EXPAND, Gtk::SHRINK );
+ _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 );
}
- _scroller->add(*stuff);
+ _scroller->add( *_insides );
} else {
- int width = _baseSize == Gtk::ICON_SIZE_MENU ? 16 : 8;
- int height = (items.size() + (width - 1)) / width;
- if ( height < 1 ) {
- height = 1;
- }
-
- Gtk::Table* stuff = manage(new Gtk::Table( height, width ));
- _insides = stuff;
int col = 0;
int row = 0;
+ 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));
- stuff->attach( *thing, col, col+1, row, row+1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND );
- col++;
- if ( col >= width ) {
+ if ( !_insides ) {
+ calcGridSize( thing, items.size(), width, height );
+ _insides = manage(new Gtk::Table( height, width ));
+ }
+
+ _insides->attach( *thing, col, col+1, row, row+1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND );
+ if ( ++col >= width ) {
col = 0;
row++;
}
}
- _scroller->add(*stuff);
+ if ( !_insides ) {
+ _insides = manage(new Gtk::Table( 1, 2 ));
+ }
+
+ _scroller->add( *_insides );
}
_scroller->show_all_children();