index 321b7899fc164114bef8dc9cd11513f21b7f7def..b89e68adceabc145164e38132e21d4123266cea7 100644 (file)
--- a/src/ui/previewholder.cpp
+++ b/src/ui/previewholder.cpp
#include "previewholder.h"
#include <gtkmm/scrolledwindow.h>
#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 {
namespace Inkscape {
VBox(),
PreviewFillable(),
_scroller(0),
VBox(),
PreviewFillable(),
_scroller(0),
+ _insides(0),
+ _prefCols(0),
+ _updatesFrozen(false),
_anchor(Gtk::ANCHOR_CENTER),
_baseSize(Gtk::ICON_SIZE_MENU),
_view(VIEW_TYPE_LIST)
{
_scroller = manage(new Gtk::ScrolledWindow());
_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()
}
PreviewHolder::~PreviewHolder()
void PreviewHolder::clear()
{
items.clear();
void PreviewHolder::clear()
{
items.clear();
+ _prefCols = 0;
rebuildUI();
}
void PreviewHolder::addPreview( Previewable* preview )
{
items.push_back(preview);
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 );
+ if ( !_updatesFrozen )
+ {
+ 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 = 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(Gtk::BuiltinIconSize size, ViewType view)
{
if ( _anchor != how )
{
{
if ( _anchor != how )
{
+ _anchor = how;
switch ( _anchor )
{
case Gtk::ANCHOR_NORTH:
case Gtk::ANCHOR_SOUTH:
{
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_ALWAYS, Gtk::POLICY_AUTOMATIC );
}
break;
}
break;
dynamic_cast<Gtk::ScrolledWindow*>(_scroller)->set_policy( Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC );
}
}
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(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 = 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();
}
}
void PreviewHolder::rebuildUI()
{
_scroller->remove();
+ _insides = 0; // remove() call should have deleted the Gtk::Table.
if ( _view == VIEW_TYPE_LIST ) {
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));
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));
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 {
} 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 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));
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++;
}
}
col = 0;
row++;
}
}
- _scroller->add(*stuff);
+ if ( !_insides ) {
+ _insides = manage(new Gtk::Table( 1, 2 ));
+ }
+
+ _scroller->add( *_insides );
}
_scroller->show_all_children();
}
_scroller->show_all_children();