some refactoring to reduce the amount of copy-paste later
This commit is contained in:
fgerlits
parent
f741c1bd4f
commit
932be3d827
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@ -287,7 +287,8 @@ G_LIVESUPPORT_OBJS = ${TMP_DIR}/GLiveSupport.o \
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${TMP_DIR}/RestoreBackupWindow.o \
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${TMP_DIR}/TaskbarIcons.o \
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${TMP_DIR}/RdsView.o \
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${TMP_DIR}/RdsEntry.o
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${TMP_DIR}/RdsEntry.o \
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${TMP_DIR}/DndMethods.o
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G_LIVESUPPORT_RES = ${TMP_STUDIO-LOCALIZATION_DIR}/root.res \
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${TMP_STUDIO-LOCALIZATION_DIR}/en.res \
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@ -0,0 +1,185 @@
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/*------------------------------------------------------------------------------
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Copyright (c) 2004 Media Development Loan Fund
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This file is part of the Campcaster project.
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http://campcaster.campware.org/
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To report bugs, send an e-mail to bugs@campware.org
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Campcaster is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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Campcaster is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Campcaster; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Author : $Author$
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Version : $Revision$
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Location : $URL$
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------------------------------------------------------------------------------*/
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/* ============================================================ include files */
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#include <iostream>
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#include <stdexcept>
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#include <cassert>
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#include "DndMethods.h"
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using namespace LiveSupport::Core;
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using namespace LiveSupport::GLiveSupport;
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/* =================================================== local data structures */
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/* ================================================ local constants & macros */
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/* =============================================== local function prototypes */
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/* ============================================================= module code */
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/*------------------------------------------------------------------------------
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* Set up the D'n'D callbacks.
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*----------------------------------------------------------------------------*/
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void
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DndMethods :: setupDndCallbacks (void) throw ()
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{
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Gtk::TreeView * treeView = getTreeViewForDnd();
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std::list<Gtk::TargetEntry> targets;
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targets.push_back(Gtk::TargetEntry("STRING",
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Gtk::TARGET_SAME_APP));
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// set up the tree view as a d'n'd source
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treeView->enable_model_drag_source(targets);
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treeView->signal_drag_data_get().connect(sigc::mem_fun(*this,
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&DndMethods::onTreeViewDragDataGet));
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// set up the tree view as a d'n'd target
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treeView->enable_model_drag_dest(targets);
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treeView->signal_drag_data_received().connect(sigc::mem_fun(*this,
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&DndMethods::onTreeViewDragDataReceived));
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}
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/*------------------------------------------------------------------------------
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* The callback for supplying the data for the drag and drop.
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*----------------------------------------------------------------------------*/
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void
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DndMethods :: onTreeViewDragDataGet (
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const Glib::RefPtr<Gdk::DragContext> & context,
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Gtk::SelectionData & selectionData,
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guint info,
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guint time)
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throw ()
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{
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Glib::ustring dropString = getWindowNameForDnd();
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Ptr<Playable>::Ref playable = getFirstSelectedPlayable();
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while ((playable = getNextSelectedPlayable())) {
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dropString += " ";
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dropString += std::string(*playable->getId());
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}
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selectionData.set(selectionData.get_target(),
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8 /* 8 bits format*/,
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(const guchar *) dropString.c_str(),
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dropString.bytes());
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}
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/*------------------------------------------------------------------------------
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* The callback for processing the data delivered by drag and drop.
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*----------------------------------------------------------------------------*/
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void
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DndMethods :: onTreeViewDragDataReceived(
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const Glib::RefPtr<Gdk::DragContext> & context,
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int x,
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int y,
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const Gtk::SelectionData & selectionData,
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guint info,
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guint time)
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throw ()
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{
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Glib::ustring windowName = getWindowNameForDnd();
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if (selectionData.get_length() < 0 || selectionData.get_format() != 8) {
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std::cerr << "unknown type of data dropped on the tree view in "
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<< windowName << std::endl;
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context->drag_finish(false, false, time);
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return;
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}
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Glib::ustring data = selectionData.get_data_as_string();
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std::stringstream dataStream(data);
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Glib::ustring sourceWindow;
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dataStream >> sourceWindow;
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Gtk::TreeIter iter = insertRowAtPos(x, y);
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Glib::ustring idAsString;
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dataStream >> idAsString; // only works for 1 item, for now
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Ptr<UniqueId>::Ref id(new UniqueId(idAsString));
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addItem(iter, id);
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if (sourceWindow == windowName) {
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context->drag_finish(true, true, time); // delete the original
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} else {
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context->drag_finish(true, false, time); // don't delete the original
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}
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}
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/*------------------------------------------------------------------------------
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* Insert a row into the tree model at the given tree view position.
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*----------------------------------------------------------------------------*/
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Gtk::TreeIter
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DndMethods :: insertRowAtPos (int x,
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int y) throw ()
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{
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Gtk::TreeView * treeView = getTreeViewForDnd();
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Glib::RefPtr<Gtk::ListStore>
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treeModel = Glib::RefPtr<Gtk::ListStore>::cast_dynamic(
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treeView->get_model() );
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Gtk::TreePath destPath;
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Gtk::TreeViewDropPosition destPos;
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bool pathIsValid = treeView->get_dest_row_at_pos(
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x, y, destPath, destPos);
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// get_drag_dest_row() does not work here, for some strange reason
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Gtk::TreeIter newIter;
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if (pathIsValid) {
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assert (!destPath.empty());
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Gtk::TreeIter destination = treeModel->get_iter(destPath);
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if (destPos == Gtk::TREE_VIEW_DROP_BEFORE
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|| destPos == Gtk::TREE_VIEW_DROP_INTO_OR_BEFORE) {
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newIter = treeModel->insert(destination);
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} else if (destPos == Gtk::TREE_VIEW_DROP_AFTER
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|| destPos == Gtk::TREE_VIEW_DROP_INTO_OR_AFTER) {
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newIter = treeModel->insert_after(destination);
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} else {
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assert (false);
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}
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} else {
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newIter = treeModel->append();
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}
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return newIter;
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}
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@ -0,0 +1,194 @@
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/*------------------------------------------------------------------------------
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Copyright (c) 2004 Media Development Loan Fund
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This file is part of the Campcaster project.
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http://campcaster.campware.org/
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To report bugs, send an e-mail to bugs@campware.org
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Campcaster is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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Campcaster is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Campcaster; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Author : $Author$
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Version : $Revision$
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Location : $URL$
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------------------------------------------------------------------------------*/
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#ifndef DndMethods_h
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#define DndMethods_h
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#ifndef __cplusplus
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#error This is a C++ include file
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#endif
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/* ============================================================ include files */
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#include <gtkmm.h>
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#include "LiveSupport/Core/Playable.h"
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namespace LiveSupport {
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namespace GLiveSupport {
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using namespace LiveSupport::Core;
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/* ================================================================ constants */
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/* =================================================================== macros */
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/* =============================================================== data types */
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/**
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* An abstract class containing template methods which implement drag and drop.
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*
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* To implement d'n'd in a GuiWindow, inherit from this class, implement the
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* pure abstract methods declared in this class (see the requirements at the
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* method declarations), and call setupDndCallbacks() after the tree view has
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* been constructed.
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*
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* @author $Author$
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* @version $Revision$
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*/
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class DndMethods
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{
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protected:
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/**
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* The tree view we want to implement d'n'd on.
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*/
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virtual Gtk::TreeView *
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getTreeViewForDnd (void) throw ()
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= 0;
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/**
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* The name of the window.
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*/
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virtual Glib::ustring
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getWindowNameForDnd (void) throw ()
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= 0;
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/**
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* Return the topmost selected row in the tree view.
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*
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* @return the first selected playable item.
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*/
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virtual Ptr<Playable>::Ref
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getFirstSelectedPlayable(void) throw ()
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= 0;
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/**
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* Used to iterate over the selected rows in the tree view.
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*
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* @return the next selected playable item.
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*/
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virtual Ptr<Playable>::Ref
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getNextSelectedPlayable(void) throw ()
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= 0;
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/**
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* Add an item to the d'n'd tree view at the given position.
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*
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* @param iter the iterator pointing to the row to be filled in.
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* @param id the ID of the item to add.
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*/
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virtual void
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addItem (Gtk::TreeIter iter,
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Ptr<const UniqueId>::Ref id) throw ()
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= 0;
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/**
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* Insert a row into the tree model at the given tree view position.
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* Creates the new row; the caller should fill it with data.
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*
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* @param x the x coordinate of the location of the new row.
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* @param y the y coordinate of the location of the new row.
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* @return an iterator pointing to the newly created row.
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*/
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Gtk::TreeIter
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insertRowAtPos (int x,
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int y) throw ();
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/**
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* Set up the D'n'D callbacks.
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*/
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void
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setupDndCallbacks (void) throw ();
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/**
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* The callback for supplying the data for the drag and drop.
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*
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* @param context the drag context.
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* @param selectionData the data (filled in by this function).
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* @param info not used.
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* @param time timestamp for the d'n'd operation.
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*/
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void
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onTreeViewDragDataGet (
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const Glib::RefPtr<Gdk::DragContext> & context,
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Gtk::SelectionData & selectionData,
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guint info,
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guint time)
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throw ();
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/**
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* The callback for processing the data delivered by drag and drop.
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*
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* @param context the drag context.
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* @param x the x coord where the data was dropped.
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* @param y the y coord where the data was dropped.
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* @param selectionData the data.
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* @param info not used.
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* @param time timestamp for the d'n'd operation.
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*/
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virtual void
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onTreeViewDragDataReceived (
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const Glib::RefPtr<Gdk::DragContext> & context,
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int x,
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int y,
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const Gtk::SelectionData & selectionData,
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guint info,
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guint time)
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throw ();
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/**
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* Constructor.
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*/
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DndMethods (void) throw ()
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{
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}
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/**
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* Virtual destructor.
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*/
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virtual
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~DndMethods(void) throw ()
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{
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}
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};
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/* ================================================= external data structures */
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/* ====================================================== function prototypes */
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} // namespace GLiveSupport
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} // namespace LiveSupport
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#endif // DndMethods_h
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@ -622,126 +622,12 @@ ScratchpadWindow :: hide(void) throw ()
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/*------------------------------------------------------------------------------
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* Set up the D'n'D callbacks.
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* The name of the window for the d'n'd methods.
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*----------------------------------------------------------------------------*/
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void
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ScratchpadWindow :: setupDndCallbacks (void) throw ()
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Glib::ustring
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ScratchpadWindow :: getWindowNameForDnd (void) throw ()
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{
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std::list<Gtk::TargetEntry> targets;
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targets.push_back(Gtk::TargetEntry("STRING",
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Gtk::TARGET_SAME_APP));
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// set up the tree view as a d'n'd source
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treeView->enable_model_drag_source(targets);
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treeView->signal_drag_data_get().connect(sigc::mem_fun(*this,
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&ScratchpadWindow::onTreeViewDragDataGet));
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// set up the tree view as a d'n'd target
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treeView->enable_model_drag_dest(targets);
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treeView->signal_drag_data_received().connect(sigc::mem_fun(*this,
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&ScratchpadWindow::onTreeViewDragDataReceived));
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}
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/*------------------------------------------------------------------------------
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* The callback for supplying the data for the drag and drop.
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*----------------------------------------------------------------------------*/
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void
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ScratchpadWindow :: onTreeViewDragDataGet(
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const Glib::RefPtr<Gdk::DragContext> & context,
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Gtk::SelectionData & selectionData,
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guint info,
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guint time)
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throw ()
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{
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Glib::ustring dropString = bundleName;
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Ptr<Playable>::Ref playable = getFirstSelectedPlayable();
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while ((playable = getNextSelectedPlayable())) {
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dropString += " ";
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dropString += std::string(*playable->getId());
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}
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selectionData.set(selectionData.get_target(),
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8 /* 8 bits format*/,
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(const guchar *) dropString.c_str(),
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dropString.bytes());
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}
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/*------------------------------------------------------------------------------
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* The callback for processing the data delivered by drag and drop.
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*----------------------------------------------------------------------------*/
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void
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ScratchpadWindow :: onTreeViewDragDataReceived(
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const Glib::RefPtr<Gdk::DragContext> & context,
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int x,
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int y,
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const Gtk::SelectionData & selectionData,
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guint info,
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guint time)
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throw ()
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{
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if (selectionData.get_length() < 0 || selectionData.get_format() != 8) {
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std::cerr << "unknown type of data dropped on the tree view in "
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<< bundleName << std::endl;
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context->drag_finish(false, false, time);
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return;
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}
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Glib::ustring data = selectionData.get_data_as_string();
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std::stringstream dataStream(data);
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Glib::ustring sourceWindow;
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dataStream >> sourceWindow;
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Gtk::TreeIter iter = insertRowAtPos(x, y);
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Glib::ustring idAsString;
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dataStream >> idAsString; // only works for 1 item, for now
|
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Ptr<UniqueId>::Ref id(new UniqueId(idAsString));
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addItem(iter, id);
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if (sourceWindow == bundleName) {
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context->drag_finish(true, true, time); // delete the original
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||||
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} else {
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context->drag_finish(true, false, time); // don't delete the original
|
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}
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}
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||||
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||||
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||||
/*------------------------------------------------------------------------------
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* Insert a row into the tree model at the given tree view position.
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*----------------------------------------------------------------------------*/
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Gtk::TreeIter
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ScratchpadWindow :: insertRowAtPos (int x,
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int y) throw ()
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{
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Gtk::TreePath destPath;
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Gtk::TreeViewDropPosition destPos;
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bool pathIsValid = treeView->get_dest_row_at_pos(
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x, y, destPath, destPos);
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// get_drag_dest_row() does not work here, for some strange reason
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Gtk::TreeIter newIter;
|
||||
|
||||
if (pathIsValid) {
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||||
assert (!destPath.empty());
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Gtk::TreeIter destination = treeModel->get_iter(destPath);
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||||
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||||
if (destPos == Gtk::TREE_VIEW_DROP_BEFORE
|
||||
|| destPos == Gtk::TREE_VIEW_DROP_INTO_OR_BEFORE) {
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newIter = treeModel->insert(destination);
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||||
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||||
} else if (destPos == Gtk::TREE_VIEW_DROP_AFTER
|
||||
|| destPos == Gtk::TREE_VIEW_DROP_INTO_OR_AFTER) {
|
||||
newIter = treeModel->insert_after(destination);
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||||
|
||||
} else {
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||||
assert (false);
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||||
}
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||||
} else {
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||||
newIter = treeModel->append();
|
||||
}
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||||
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||||
return newIter;
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return bundleName;
|
||||
}
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||||
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||||
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||||
|
|
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@ -49,6 +49,7 @@
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|||
#include "ContentsStorable.h"
|
||||
#include "ExportPlaylistWindow.h"
|
||||
#include "SchedulePlaylistWindow.h"
|
||||
#include "DndMethods.h"
|
||||
|
||||
#include "GuiWindow.h"
|
||||
|
||||
|
|
@ -75,7 +76,8 @@ using namespace LiveSupport::Widgets;
|
|||
* @version $Revision$
|
||||
*/
|
||||
class ScratchpadWindow : public GuiWindow,
|
||||
public ContentsStorable
|
||||
public ContentsStorable,
|
||||
public DndMethods
|
||||
{
|
||||
private:
|
||||
|
||||
|
|
@ -105,26 +107,6 @@ class ScratchpadWindow : public GuiWindow,
|
|||
*/
|
||||
std::vector<Gtk::TreePath>::const_iterator selectedIter;
|
||||
|
||||
/**
|
||||
* Return the topmost selected row.
|
||||
* Sets selectedPaths and selectedIter; does not increment it.
|
||||
*
|
||||
* @return the first selected playable item.
|
||||
*/
|
||||
Ptr<Playable>::Ref
|
||||
getFirstSelectedPlayable(void) throw ();
|
||||
|
||||
/**
|
||||
* Used to iterate over the selected rows.
|
||||
* Reset to the first row by onEntryClicked().
|
||||
* Returns a 0 pointer if nothing is selected or we have reached
|
||||
* the end of the list of selected rows.
|
||||
*
|
||||
* @return the next selected playable item.
|
||||
*/
|
||||
Ptr<Playable>::Ref
|
||||
getNextSelectedPlayable(void) throw ();
|
||||
|
||||
/**
|
||||
* Check whether exactly one row is selected.
|
||||
*
|
||||
|
|
@ -147,34 +129,6 @@ class ScratchpadWindow : public GuiWindow,
|
|||
void
|
||||
removeItem(Ptr<const UniqueId>::Ref id) throw ();
|
||||
|
||||
/**
|
||||
* Set up the D'n'D callbacks.
|
||||
*/
|
||||
void
|
||||
setupDndCallbacks (void) throw ();
|
||||
|
||||
/**
|
||||
* Insert a row into the tree model at the given tree view position.
|
||||
* Creates the new row; the caller should fill it with data.
|
||||
*
|
||||
* @param x the x coordinate of the location of the new row.
|
||||
* @param y the y coordinate of the location of the new row.
|
||||
* @return an iterator pointing to the newly created row.
|
||||
*/
|
||||
Gtk::TreeIter
|
||||
insertRowAtPos (int x,
|
||||
int y) throw ();
|
||||
|
||||
/**
|
||||
* Add an item to the Scratchpad at the given position.
|
||||
*
|
||||
* @param iter the iterator pointing to the row to be filled in.
|
||||
* @param id the ID of the item to add.
|
||||
*/
|
||||
void
|
||||
addItem(Gtk::TreeIter iter,
|
||||
Ptr<const UniqueId>::Ref id) throw ();
|
||||
|
||||
|
||||
protected:
|
||||
|
||||
|
|
@ -335,40 +289,49 @@ class ScratchpadWindow : public GuiWindow,
|
|||
onRemoveMenuOption(void) throw ();
|
||||
|
||||
/**
|
||||
* The callback for supplying the data for the drag and drop.
|
||||
*
|
||||
* @param context the drag context.
|
||||
* @param selectionData the data (filled in by this function).
|
||||
* @param info not used.
|
||||
* @param time timestamp for the d'n'd operation.
|
||||
* The tree view we want to implement d'n'd on.
|
||||
*/
|
||||
void
|
||||
onTreeViewDragDataGet(
|
||||
const Glib::RefPtr<Gdk::DragContext> & context,
|
||||
Gtk::SelectionData & selectionData,
|
||||
guint info,
|
||||
guint time)
|
||||
throw ();
|
||||
virtual Gtk::TreeView *
|
||||
getTreeViewForDnd (void) throw ()
|
||||
{
|
||||
return treeView;
|
||||
}
|
||||
|
||||
/**
|
||||
* The callback for processing the data delivered by drag and drop.
|
||||
* The name of the window for the d'n'd methods.
|
||||
*/
|
||||
virtual Glib::ustring
|
||||
getWindowNameForDnd (void) throw ();
|
||||
|
||||
/**
|
||||
* Return the topmost selected row.
|
||||
* Sets selectedPaths and selectedIter; does not increment it.
|
||||
*
|
||||
* @param context the drag context.
|
||||
* @param x the x coord where the data was dropped.
|
||||
* @param y the y coord where the data was dropped.
|
||||
* @param selectionData the data.
|
||||
* @param info not used.
|
||||
* @param time timestamp for the d'n'd operation.
|
||||
* @return the first selected playable item.
|
||||
*/
|
||||
virtual Ptr<Playable>::Ref
|
||||
getFirstSelectedPlayable(void) throw ();
|
||||
|
||||
/**
|
||||
* Used to iterate over the selected rows.
|
||||
* Reset to the first row by onEntryClicked().
|
||||
* Returns a 0 pointer if nothing is selected or we have reached
|
||||
* the end of the list of selected rows.
|
||||
*
|
||||
* @return the next selected playable item.
|
||||
*/
|
||||
virtual Ptr<Playable>::Ref
|
||||
getNextSelectedPlayable(void) throw ();
|
||||
|
||||
/**
|
||||
* Add an item to the Scratchpad at the given position.
|
||||
*
|
||||
* @param iter the iterator pointing to the row to be filled in.
|
||||
* @param id the ID of the item to add.
|
||||
*/
|
||||
virtual void
|
||||
onTreeViewDragDataReceived(
|
||||
const Glib::RefPtr<Gdk::DragContext> & context,
|
||||
int x,
|
||||
int y,
|
||||
const Gtk::SelectionData & selectionData,
|
||||
guint info,
|
||||
guint time)
|
||||
throw ();
|
||||
addItem(Gtk::TreeIter iter,
|
||||
Ptr<const UniqueId>::Ref id) throw ();
|
||||
|
||||
|
||||
public:
|
||||
|
|
|
|||
Loading…
Reference in New Issue