new property browser widget
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mfranz
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302
src/GUI/property_list.cxx
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302
src/GUI/property_list.cxx
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// Implementation of the <property-list> widget.
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//
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// Copyright (C) 2001 Steve BAKER
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// Copyright (C) 2001 Jim WILSON
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// Copyright (C) 2006 Melchior FRANZ
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// $Id$
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <simgear/compiler.h>
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#include STL_STRING
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SG_USING_STD(string);
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typedef string stdString; // puObject has a "string" member
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#include <Main/fg_os.hxx> // fgGetKeyModifiers()
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#include <Main/fg_props.hxx>
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#include "property_list.hxx"
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static int nodeNameCompare(const void *ppNode1, const void *ppNode2)
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{
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const SGPropertyNode_ptr pNode1 = *(const SGPropertyNode_ptr *)ppNode1;
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const SGPropertyNode_ptr pNode2 = *(const SGPropertyNode_ptr *)ppNode2;
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int diff = strcmp(pNode1->getName(), pNode2->getName());
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return diff ? diff : pNode1->getIndex() - pNode2->getIndex();
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}
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static string getValueTypeString(const SGPropertyNode *node)
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{
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string result;
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if (!node)
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return "unknown";
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SGPropertyNode::Type type = node->getType();
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if (type == SGPropertyNode::UNSPECIFIED)
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result = "unspecified";
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else if (type == SGPropertyNode::NONE)
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result = "none";
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else if (type == SGPropertyNode::BOOL)
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result = "bool";
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else if (type == SGPropertyNode::INT)
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result = "int";
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else if (type == SGPropertyNode::LONG)
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result = "long";
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else if (type == SGPropertyNode::FLOAT)
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result = "float";
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else if (type == SGPropertyNode::DOUBLE)
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result = "double";
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else if (type == SGPropertyNode::STRING)
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result = "string";
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return result;
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}
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PropertyList::PropertyList(int minx, int miny, int maxx, int maxy, SGPropertyNode *start) :
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puList(minx, miny, maxx, maxy, short(0), 20),
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_curr(start),
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_flags(fgGetNode("/sim/gui/dialogs/property-browser/show-flags", true)),
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_return(0),
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_entries(0),
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_num_entries(0)
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{
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_list_box->setUserData(this);
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_list_box->setCallback(handle_select);
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_list_box->setValue(0);
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update();
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}
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PropertyList::~PropertyList()
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{
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delete_arrays();
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}
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void PropertyList::delete_arrays()
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{
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if (!_entries)
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return;
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for (int i = 0; i < _num_entries; i++)
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delete[] _entries[i];
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for (int j = 0; j < _num_children; j++) {
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if (!_children[j]->nChildren())
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_children[j]->removeChangeListener(this);
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}
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delete[] _entries;
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delete[] _children;
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_entries = 0;
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_children = 0;
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}
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void PropertyList::handle_select(puObject *list_box)
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{
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PropertyList *prop_list = (PropertyList *)list_box->getUserData();
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int selected = list_box->getIntegerValue();
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bool mod_ctrl = fgGetKeyModifiers() & KEYMOD_CTRL;
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if (selected >= 0 && selected < prop_list->_num_entries) {
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const char *src = prop_list->_entries[selected];
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if (prop_list->dotFiles && (selected < 2)) {
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if (!strcmp(src, ".")) {
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if (mod_ctrl)
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prop_list->toggleFlags();
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prop_list->update();
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return;
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} else if (!strcmp(src, "..")) {
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SGPropertyNode *parent = prop_list->getCurrent()->getParent();
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if (parent) {
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if (mod_ctrl)
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for (; parent->getParent(); parent = parent->getParent())
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;
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prop_list->setCurrent(parent);
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}
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return;
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}
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}
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// we know we're dealing with a regular entry, so convert
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// it to an index into children[]
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if (prop_list->dotFiles)
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selected -= 2;
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SGPropertyNode_ptr child = prop_list->_children[selected];
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assert(child);
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// check if it's a directory
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if (child->nChildren()) {
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prop_list->setCurrent(child);
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return;
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}
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// it is a regular property
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if (child->getType() == SGPropertyNode::BOOL && mod_ctrl) {
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child->setBoolValue(!child->getBoolValue());
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prop_list->update();
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} else
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prop_list->publish(child);
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} else {
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// the user clicked on blank screen
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prop_list->update();
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}
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}
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void PropertyList::update(bool restore_pos)
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{
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int pi;
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int i;
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delete_arrays();
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_num_entries = (int)_curr->nChildren();
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// instantiate string objects and add [.] and [..] for subdirs
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if (!_curr->getParent()) {
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_entries = new char*[_num_entries + 1];
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pi = 0;
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dotFiles = false;
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} else {
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_num_entries += 2; // for . and ..
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_entries = new char*[_num_entries + 1];
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_entries[0] = new char[2];
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strcpy(_entries[0], ".");
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_entries[1] = new char[3];
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strcpy(_entries[1], "..");
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pi = 2;
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dotFiles = true;
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}
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_num_children = _curr->nChildren();
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_children = new SGPropertyNode_ptr[_num_children];
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for (i = 0; i < _num_children; i++)
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_children[i] = _curr->getChild(i);
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qsort(_children, _num_children, sizeof(_children[0]), nodeNameCompare);
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// Make lists of the children's names, values, etc.
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for (i = 0; i < _num_children; i++, pi++) {
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SGPropertyNode *child = _children[i];
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if (child->nChildren() > 0) {
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stdString name = stdString(child->getDisplayName(true)) + '/';
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_entries[pi] = new char[name.size() + 1];
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strcpy(_entries[pi], name.c_str());
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} else {
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_entries[pi] = 0; // ensure it's 0 before setting intial value
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updateTextForEntry(i);
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child->addChangeListener(this);
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}
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}
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_entries[_num_entries] = 0;
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int top = getTopItem();
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newList(_entries);
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if (restore_pos)
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setTopItem(top);
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}
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void PropertyList::updateTextForEntry(int index)
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{
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assert((index >= 0) && (index < _num_children));
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SGPropertyNode_ptr node = _children[index];
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stdString name = node->getDisplayName(true);
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stdString type = getValueTypeString(node);
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stdString value = node->getStringValue();
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stdString line = name + " = '" + value + "' (" + type;
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if (_flags->getBoolValue()) {
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stdString ext;
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if (!node->getAttribute(SGPropertyNode::READ))
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ext += 'r';
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if (!node->getAttribute(SGPropertyNode::WRITE))
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ext += 'w';
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if (node->getAttribute(SGPropertyNode::TRACE_READ))
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ext += 'R';
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if (node->getAttribute(SGPropertyNode::TRACE_WRITE))
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ext += 'W';
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if (node->getAttribute(SGPropertyNode::ARCHIVE))
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ext += 'A';
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if (node->getAttribute(SGPropertyNode::USERARCHIVE))
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ext += 'U';
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if (node->isTied())
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ext += 'T';
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if (ext.size())
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line += ", " + ext;
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}
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line += ')';
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if (line.size() >= PUSTRING_MAX)
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line.resize(PUSTRING_MAX - 1);
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if (dotFiles)
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index += 2;
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delete[] _entries[index];
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_entries[index] = new char[line.size() + 1];
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strcpy(_entries[index], line.c_str());
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}
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void PropertyList::valueChanged(SGPropertyNode *nd)
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{
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for (int i = 0; i < _num_children; i++)
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if (_children[i] == nd) {
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updateTextForEntry(i);
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return;
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}
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}
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void PropertyList::setValue(const char *s)
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{
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SGPropertyNode *p = fgGetNode(s, false);
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if (p)
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setCurrent(p);
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}
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74
src/GUI/property_list.hxx
Normal file
74
src/GUI/property_list.hxx
Normal file
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@ -0,0 +1,74 @@
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// Implementation of the <property-list> widget.
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//
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// Copyright (C) 2001 Steve BAKER
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// Copyright (C) 2001 Jim WILSON
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// Copyright (C) 2006 Melchior FRANZ
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// $Id$
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#ifndef _PROPERTY_LIST_HXX
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#define _PROPERTY_LIST_HXX
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#include <plib/pu.h>
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#include <simgear/props/props.hxx>
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#include "puList.hxx"
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class PropertyList : public puList, public SGPropertyChangeListener {
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public:
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PropertyList(int minx, int miny, int maxx, int maxy, SGPropertyNode *);
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~PropertyList();
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void update (bool restore_slider_pos = false);
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void setCurrent(SGPropertyNode *p) { _curr = p; update(); publish(p); }
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SGPropertyNode *getCurrent() const { return _curr; }
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void publish(SGPropertyNode *p) { _return = p; invokeCallback(); }
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void toggleFlags() { _flags->setBoolValue(!_flags->getBoolValue()); }
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// overridden plib pui methods
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virtual char *getStringValue(void) { return (char *)(_return ? _return->getPath(true) : ""); }
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virtual void setValue(const char *);
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// listener method
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virtual void valueChanged(SGPropertyNode *node);
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private:
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// update the text string in the puList using the given node and
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// updating the requested offset. The value of dotFiles is taken
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// into account before the index is applied, i.e this should be
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// an index into 'children'
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void updateTextForEntry(int index);
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void delete_arrays();
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static void handle_select(puObject *b);
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SGPropertyNode_ptr _curr;
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SGPropertyNode_ptr _flags;
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SGPropertyNode_ptr _return;
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char **_entries;
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int _num_entries;
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SGPropertyNode_ptr *_children;
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int _num_children;
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bool dotFiles; // . and .. pseudo-dirs currently shown?
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};
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#endif // _PROP_PICKER_HXX
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