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flightgear/src/GUI/prop_picker.cxx
mfranz c9813d1b5d new FSF address
2006-02-21 01:16:04 +00:00

623 lines
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/*
Adapted by Jim Wilson, beginning Sept 2001 (FG v 0.79)
**** Insert FlightGear GPL here.
Based on puFilePicker from:
********
PLIB - A Suite of Portable Game Libraries
Copyright (C) 2001 Steve Baker
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
For further information visit http://plib.sourceforge.net
$Id$
********
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <simgear/compiler.h>
#include <simgear/props/props.hxx>
#include STL_STRING
#include <Main/globals.hxx>
#include "new_gui.hxx"
#include "prop_picker.hxx"
SG_USING_STD(string);
// A local alternative name, for use when a variable called "string" is in scope - e.g. in classes derived from puInput.
typedef string stdString;
#define DOTDOTSLASH "../"
#define SLASH "/"
static puObject *PP_widget = 0;
// widget location and size...
#define PROPPICK_X 100
#define PROPPICK_Y 200
#define PROPPICK_W 500
#define PROPPICK_H 300
static puObject *PE_widget = 0;
void prop_pickerInit()
{
if( PP_widget == 0 ) {
fgPropPicker *PP = new fgPropPicker ( PROPPICK_X, PROPPICK_Y, PROPPICK_W, PROPPICK_H, 1, "/", "FG Properties");
PP_widget = PP;
}
}
void prop_pickerView( puObject * )
{
if( PP_widget == 0 ) {
prop_pickerInit();
}
fgPropPicker *me = (fgPropPicker *)PP_widget -> getUserData();
// refresh
me -> find_props();
FG_PUSH_PUI_DIALOG( me );
}
void prop_pickerRefresh()
{
if( PP_widget == 0 ) {
prop_pickerInit();
}
fgPropPicker *me = (fgPropPicker *)PP_widget -> getUserData();
me -> find_props();
}
void prop_editInit( const char * name, const char * value, char * proppath )
{
if( PE_widget == 0 ) {
fgPropEdit *PP = new fgPropEdit ( name, value, proppath );
PE_widget = PP;
}
}
void prop_editOpen( const char * name, const char * value, char * proppath )
{
if( PE_widget == 0 ) {
prop_editInit( name, value, proppath );
}
fgPropEdit *me = (fgPropEdit *)PE_widget -> getUserData();
me -> propname -> setLabel (name);
me -> propinput -> setValue (value);
strcpy(me -> propPath, proppath);
me -> propinput -> acceptInput ();
FG_PUSH_PUI_DIALOG( me );
}
// return a human readable form of the value "type"
static string getValueTypeString( const SGPropertyNode_ptr node ) {
string result;
if ( node == NULL ) {
return "unknown";
}
SGPropertyNode::Type type = node->getType();
if ( type == SGPropertyNode::UNSPECIFIED ) {
result = "unspecified";
} else if ( type == SGPropertyNode::NONE ) {
result = "none";
} else if ( type == SGPropertyNode::BOOL ) {
result = "bool";
} else if ( type == SGPropertyNode::INT ) {
result = "int";
} else if ( type == SGPropertyNode::LONG ) {
result = "long";
} else if ( type == SGPropertyNode::FLOAT ) {
result = "float";
} else if ( type == SGPropertyNode::DOUBLE ) {
result = "double";
} else if ( type == SGPropertyNode::STRING ) {
result = "string";
}
return result;
}
void fgPropPicker::fgPropPickerHandleSlider ( puObject * slider )
{
puListBox* list_box = (puListBox*) slider -> getUserData () ;
float val ;
slider -> getValue ( &val ) ;
val = 1.0f - val ;
int scroll_range = list_box->getNumItems () - list_box->getNumVisible() ;
if ( scroll_range > 0 )
{
int index = int ( scroll_range * val + 0.5 ) ;
list_box -> setTopItem ( index ) ;
}
}
void fgPropPicker::fgPropPickerHandleArrow ( puObject *arrow )
{
puSlider *slider = (puSlider *) arrow->getUserData () ;
puListBox* list_box = (puListBox*) slider -> getUserData () ;
int type = ((puArrowButton *)arrow)->getArrowType() ;
int inc = ( type == PUARROW_DOWN ) ? 1 :
( type == PUARROW_UP ) ? -1 :
( type == PUARROW_FASTDOWN ) ? 10 :
( type == PUARROW_FASTUP ) ? -10 : 0 ;
float val ;
slider -> getValue ( &val ) ;
val = 1.0f - val ;
int scroll_range = list_box->getNumItems () - list_box->getNumVisible() ;
if ( scroll_range > 0 )
{
int index = int ( scroll_range * val + 0.5 ) ;
index += inc ;
// if ( index > scroll_range ) index = scroll_range ;
// Allow buttons to scroll further than the slider does
if ( index > ( list_box->getNumItems () - 1 ) )
index = ( list_box->getNumItems () - 1 ) ;
if ( index < 0 ) index = 0 ;
slider -> setValue ( 1.0f - (float)index / scroll_range ) ;
list_box -> setTopItem ( index ) ;
}
}
void fgPropPicker::chop_file ( char *fname )
{
/* removes everything back to the last '/' */
for ( int i = strlen(fname)-1 ; fname[i] != SLASH[0] && i >= 0 ; i-- )
fname[i] = '\0' ;
}
void fgPropPicker::go_up_one_directory ( char *fname )
{
/* removes everything back to the last but one '/' */
chop_file ( fname ) ;
if ( strlen ( fname ) == 0 )
{
/* Empty string! The only way to go up is to append a "../" */
strcpy ( fname, DOTDOTSLASH ) ;
return ;
}
/* If the last path element is a "../" then we'll have to add another "../" */
if ( strcmp ( & fname [ strlen(fname)-3 ], DOTDOTSLASH ) == 0 )
{
if ( strlen ( fname ) + 4 >= PUSTRING_MAX )
{
ulSetError ( UL_WARNING, "PUI: fgPropPicker - path is too long, max is %d.",
PUSTRING_MAX ) ;
return ;
}
strcat ( fname, DOTDOTSLASH ) ;
return ;
}
/* Otherwise, just delete the last element of the path. */
/* Remove the trailing slash - then remove the rest as if it was a file name */
fname [ strlen(fname)-1 ] = '\0' ;
chop_file ( fname ) ;
}
void fgPropPicker::handle_select ( puObject* list_box )
{
fgPropPicker* prop_picker = (fgPropPicker*) list_box -> getUserData () ;
int selected ;
list_box -> getValue ( &selected ) ;
if ( selected >= 0 && selected < prop_picker -> num_files )
{
char *dst = prop_picker -> startDir ;
char *src = prop_picker -> files [ selected ] ;
if (prop_picker->dotFiles && (selected < 2)) {
if ( strcmp ( src, "." ) == 0 ) {
/* Do nothing - but better refresh anyway. */
prop_picker -> find_props () ;
return ;
} else if ( strcmp ( src, ".." ) == 0 ) {
/* Do back up one level - so refresh. */
go_up_one_directory ( dst ) ;
prop_picker -> find_props () ;
return ;
}
}
// we know we're dealing with a regular entry, so convert
// it to an index into children[]
if (prop_picker->dotFiles) selected -= 2;
SGPropertyNode_ptr child = prop_picker->children[selected];
assert(child != NULL);
// check if it's a directory (had children)
if ( child->nChildren() ) {
/* If this is a directory - then descend into it and refresh */
if ( strlen ( dst ) + strlen ( src ) + 2 >= PUSTRING_MAX )
{
ulSetError ( UL_WARNING,
"PUI: fgPropPicker - path is too long, max is %d.", PUSTRING_MAX ) ;
return ;
}
strcat ( dst, src ) ; /* add path to descend to */
prop_picker -> find_props () ;
return ;
}
/* If this is a regular file - then just append it to the string */
if ( strlen ( dst ) + strlen ( src ) + 2 >= PUSTRING_MAX )
{
ulSetError ( UL_WARNING,
"PUI: fgPropPicker - path is too long, max is %d.", PUSTRING_MAX ) ;
return ;
}
prop_editOpen(child->getName(), child->getStringValue(), dst);
}
else
{
/*
The user clicked on blank screen - maybe we should
refresh just in case some other process created the
file.
*/
// should be obsolete once we observe child add/remove on our top node
prop_picker -> find_props () ;
}
}
void fgPropPicker::fgPropPickerHandleOk ( puObject* b )
{
fgPropPicker* prop_picker = (fgPropPicker*) b -> getUserData () ;
/* nothing to do, just hide */
FG_POP_PUI_DIALOG( prop_picker );
}
void fgPropPicker::delete_arrays ()
{
if ( files )
{
for ( int i=0; i<num_files; i++ ) {
delete[] files[i];
}
for (int C=0; C<num_children; ++C) {
if (children[C]->nChildren() == 0)
children[C]->removeChangeListener(this);
}
delete[] files;
delete[] children;
}
}
/*
fgPropPicker::~fgPropPicker ()
{
delete_arrays();
if ( this == puActiveWidget () )
puDeactivateWidget () ;
}
*/
fgPropPicker::fgPropPicker ( int x, int y, int w, int h, int arrows,
const char *dir, const char *title ) :
fgPopup ( x,y ),
_gui((NewGUI *)globals->get_subsystem("gui"))
{
puFont LegendFont, LabelFont;
puGetDefaultFonts ( &LegendFont, &LabelFont );
FGColor txtcol(_gui->getColor("label"));
txtcol.merge(_gui->getColor("text"));
txtcol.merge(_gui->getColor("text-label"));
files = NULL ;
num_files = 0 ;
strcpy ( startDir, dir ) ;
// printf ( "StartDirLEN=%i", strlen(startDir));
if ( arrows > 2 ) arrows = 2 ;
if ( arrows < 0 ) arrows = 0 ;
arrow_count = arrows ;
frame = new puFrame ( 0, 0, w, h );
setUserData( this );
proppath = new puText (10, h-30);
proppath -> setLabel (startDir);
proppath -> setColor(PUCOL_LABEL, txtcol.red(), txtcol.green(),
txtcol.blue(), txtcol.alpha());
slider = new puSlider (w-30,40+20*arrows,h-100-40*arrows,TRUE,20);
slider->setValue(1.0f);
list_box = new puListBox ( 10, 40, w-40, h-60 ) ;
list_box -> setLabel ( title );
list_box -> setLabelPlace ( PUPLACE_ABOVE ) ;
list_box -> setStyle ( -PUSTYLE_SMALL_SHADED ) ;
list_box -> setUserData ( this ) ;
list_box -> setCallback ( handle_select ) ;
list_box -> setValue ( 0 ) ;
list_box -> setColor(PUCOL_LABEL, txtcol.red(), txtcol.green(),
txtcol.blue(), txtcol.alpha());
ok_button = new puOneShot ( 10, 10, (w<170)?(w/2-5):80, 30 ) ;
ok_button -> setLegend ( "Ok" ) ;
ok_button -> setUserData ( this ) ;
ok_button -> setCallback ( fgPropPickerHandleOk ) ;
if ( arrows > 0 )
{
down_arrow = new puArrowButton ( w-30, 20+20*arrows, w-10, 40+20*arrows, PUARROW_DOWN ) ;
down_arrow->setUserData ( slider ) ;
down_arrow->setCallback ( fgPropPickerHandleArrow ) ;
up_arrow = new puArrowButton ( w-30, h-60-20*arrows, w-10, h-40-20*arrows, PUARROW_UP ) ;
up_arrow->setUserData ( slider ) ;
up_arrow->setCallback ( fgPropPickerHandleArrow ) ;
}
// after picker is built, load the list box with data...
find_props () ;
// printf("after Props files[1]=%s\n",files[1]);
// printf("num items %i", list_box -> getNumItems ());
slider -> setUserData ( list_box ) ;
slider -> setCallback ( fgPropPickerHandleSlider ) ;
FG_FINALIZE_PUI_DIALOG( this );
}
// Like strcmp, but for sorting property nodes into a suitable display order.
static int nodeNameCompare(const void *ppNode1, const void *ppNode2)
{
const SGPropertyNode_ptr pNode1 = *(const SGPropertyNode_ptr *)ppNode1;
const SGPropertyNode_ptr pNode2 = *(const SGPropertyNode_ptr *)ppNode2;
// Compare name first, and then index.
int diff = strcmp(pNode1->getName(), pNode2->getName());
if (diff) return diff;
return pNode1->getIndex() - pNode2->getIndex();
}
// Replace the current list of properties with the children of node "startDir".
void fgPropPicker::find_props ()
{
int pi;
int i;
delete_arrays();
num_files = 0 ;
// printf("dir begin of find_props=%s\n",startDir);
// printf("len of dir=%i",strlen(startDir));
SGPropertyNode * node = globals->get_props()->getNode(startDir);
num_files = (node) ? (int)node->nChildren() : 0;
// instantiate string objects and add [.] and [..] for subdirs
if (strcmp(startDir,"/") == 0) {
files = new char* [ num_files+1 ] ;
pi = 0;
dotFiles = false;
} else {
// add two for the .. and .
num_files = num_files + 2;
// make room for .. and .
files = new char* [ num_files+1 ] ;
stdString line = ".";
files [ 0 ] = new char[line.size() + 1];
strcpy ( files [ 0 ], line.c_str() );
line = "..";
files [ 1 ] = new char[line.size() + 1];
strcpy ( files [ 1 ], line.c_str() );
pi = 2;
dotFiles = true;
};
if (node) {
// Get the list of children
num_children = node->nChildren();
children = new SGPropertyNode_ptr[num_children];
for (i = 0; i < num_children; i++) {
children[i] = node->getChild(i);
}
// Sort the children into display order
qsort(children, num_children, sizeof(children[0]), nodeNameCompare);
// Make lists of the children's names, values, etc.
for (i = 0; i < num_children; i++) {
SGPropertyNode * child = children[i];
stdString name = child->getDisplayName(true);
if ( child->nChildren() > 0 ) {
files[ pi ] = new char[ strlen(name.c_str())+2 ] ;
strcpy ( files [ pi ], name.c_str() ) ;
strcat ( files [ pi ], "/" ) ;
} else {
files[pi] = NULL; // ensure it's NULL before setting intial value
updateTextForEntry(i);
// observe it
child->addChangeListener(this);
}
++pi;
}
}
files [ num_files ] = NULL ;
proppath -> setLabel (startDir);
list_box -> newList ( files ) ;
// adjust the size of the slider...
if (num_files > list_box->getNumVisible()) {
slider->setSliderFraction((float)list_box->getNumVisible() / num_files);
slider->setValue(1.0f);
slider->reveal();
up_arrow->reveal();
down_arrow->reveal();
} else {
slider->hide();
up_arrow->hide();
down_arrow->hide();
}
}
void fgPropPicker::updateTextForEntry(int index)
{
assert((index >= 0) && (index < num_children));
SGPropertyNode_ptr node = children[index];
// take a copy of the value
stdString value = node->getStringValue();
stdString line = node->getDisplayName() + stdString(" = '")
+ value + "' " + "(";
line += getValueTypeString( node );
line += ")";
// truncate entries to plib pui limit
if (line.length() >= PUSTRING_MAX)
line[PUSTRING_MAX-1] = '\0';
if (dotFiles) index +=2;
// don't leak everywhere if we're updating
delete[] files[index];
files[index] = new char[ strlen(line.c_str())+2 ] ;
strcpy ( files [ index ], line.c_str() ) ;
}
void fgPropPicker::valueChanged(SGPropertyNode *nd)
{
for (int C=0; C<num_children; ++C)
if (children[C] == nd) {
updateTextForEntry(C);
return;
}
}
void fgPropEdit::fgPropEditHandleCancel ( puObject* b )
{
fgPropEdit* prop_edit = (fgPropEdit*) b -> getUserData () ;
FG_POP_PUI_DIALOG( prop_edit );
}
void fgPropEdit::fgPropEditHandleOK ( puObject* b )
{
fgPropEdit* prop_edit = (fgPropEdit*) b -> getUserData () ;
const char* tname;
char* tvalue;
// use label text for property node to be updated
tname = prop_edit -> propname -> getLabel();
prop_edit -> propinput -> getValue( &tvalue );
SGPropertyNode * node = globals->get_props()->getNode(prop_edit -> propPath);
node->getNode( prop_edit -> propname -> getLabel(), true)->setStringValue(tvalue);
// update the picker display so it shows new value
prop_pickerRefresh();
FG_POP_PUI_DIALOG( prop_edit );
}
fgPropEdit::fgPropEdit ( const char *name, const char *value, char *proppath ) :
fgPopup ( 0, 0 ),
_gui((NewGUI *)globals->get_subsystem("gui"))
{
puFont LegendFont, LabelFont;
puGetDefaultFonts ( &LegendFont, &LabelFont );
FGColor txtcol(_gui->getColor("label"));
txtcol.merge(_gui->getColor("text"));
txtcol.merge(_gui->getColor("text-label"));
// locate in relation to picker widget...
int fx = PROPPICK_X;
int fy = PROPPICK_Y + PROPPICK_H;
frame = new puFrame (fx,fy, fx+500, fy+120);
strcpy (propPath, proppath);
setUserData( this );
propname = new puText (fx+10, fy+90);
propname -> setLabel (name);
propname -> setColor(PUCOL_LABEL, txtcol.red(), txtcol.green(),
txtcol.blue(), txtcol.alpha());
propinput = new puInput (fx+10, fy+50, fx+480, fy+80);
propinput -> setValue (value);
propinput -> acceptInput();
ok_button = new puOneShot (fx+10, fy+10, fx+80, fy+30);
ok_button -> setUserData (this);
ok_button -> setLegend (gui_msg_OK);
ok_button -> setCallback (fgPropEditHandleOK);
ok_button -> makeReturnDefault(TRUE);
cancel_button = new puOneShot (fx+100, fy+10, fx+180, fy+30);
cancel_button -> setUserData (this);
cancel_button -> setLegend (gui_msg_CANCEL);
cancel_button -> setCallback (fgPropEditHandleCancel);
FG_FINALIZE_PUI_DIALOG( this );
}
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