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/*
* A simple interface for previewing representations.
*
* Authors:
* Jon A. Cruz
*
* Copyright (C) 2005 Jon A. Cruz
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include "previewholder.h"
#include <gtkmm/scrolledwindow.h>
#include <gtkmm/sizegroup.h>
#include <gtkmm/scrollbar.h>
namespace Inkscape {
namespace UI {
PreviewHolder::PreviewHolder() :
VBox(),
PreviewFillable(),
_scroller(0),
_zee0(0),
_zee1(0),
_zee2(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;
// Add a container with the scroller and a spacer
Gtk::Table* spaceHolder = manage( new Gtk::Table(1, 2) );
_zee0 = manage( new Gtk::VBox() );
_scroller->add(*stuff);
spaceHolder->attach( *_scroller, 0, 1, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND );
spaceHolder->attach( *_zee0, 1, 2, 0, 1, Gtk::SHRINK, Gtk::FILL|Gtk::EXPAND );
pack_start(*spaceHolder, Gtk::PACK_EXPAND_WIDGET);
}
PreviewHolder::~PreviewHolder()
{
}
void PreviewHolder::clear()
{
items.clear();
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( *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 ? 16 : 8;
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, col, col+1, row, row+1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND );
}
_scroller->show_all_children();
_scroller->queue_draw();
}
void PreviewHolder::setStyle(Gtk::BuiltinIconSize size, ViewType view)
{
if ( size != _baseSize || view != _view ) {
_baseSize = size;
_view = view;
rebuildUI();
}
}
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_AUTOMATIC, Gtk::POLICY_NEVER );
dynamic_cast<Gtk::ScrolledWindow*>(_scroller)->set_policy( Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC );
if ( !_zee1 )
{
_zee1 = manage( new Gtk::VBox() );
_zee2 = manage( new Gtk::VBox() );
// Trick to get the scrolled window to a minimum height larger than the scrollbar
Gtk::VScrollbar* vs = dynamic_cast<Gtk::ScrolledWindow*>(_scroller)->get_vscrollbar();
// TODO fix leakage
Glib::RefPtr<Gtk::SizeGroup> sizer = Gtk::SizeGroup::create(Gtk::SIZE_GROUP_VERTICAL);
sizer->add_widget( *_zee1 );
sizer->add_widget( *_zee2 );
sizer->add_widget( *vs );
_zee0->pack_start( *_zee1 );
_zee0->pack_start( *_zee2 );
}
}
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 );
}
}
}
}
void PreviewHolder::rebuildUI()
{
_scroller->remove();
if ( _view == VIEW_TYPE_LIST ) {
Gtk::Table* stuff = manage(new Gtk::Table( 1, 2 ));
_insides = stuff;
stuff->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));
//label->set_alignment(Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER);
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 );
}
_scroller->add(*stuff);
} 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;
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 ) {
col = 0;
row++;
}
}
_scroller->add(*stuff);
}
_scroller->show_all_children();
_scroller->queue_draw();
}
} //namespace UI
} //namespace Inkscape
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
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