/*! \brief Constructor of CategoryPreferencesView
* \details It's a descendant of BView.
* \param[in] frame The frame rectangle of the view.
*/
CategoryPreferencesView::CategoryPreferencesView( BRect frame )
:
BView( frame,
"Category Preferences",
B_FOLLOW_ALL_SIDES,
B_WILL_DRAW | B_FRAME_EVENTS | B_NAVIGABLE )
{
BLayoutItem* layoutItem = NULL;
BMessage* toSend = NULL;
menuField = NULL;
this->SetViewColor( ui_color( B_PANEL_BACKGROUND_COLOR ) );
/*! \note Layout of the view
* The view has a grid layout. It's arranged in the following way:
* 1) Left column - list of Categories (CategoryList) that
* contains all categories currently available.
* 2) Right column - three buttons, from top to bottom:
* 2a) Edit currently selected category - guess what it's doing
* 2b) Add a new category
* 2c) Merge a current directory into another one + menu with
* all categories. The category selected in the list is disabled.
* \note Restrictions:
* a) The list of categories is scrolled.
* b) If no category is selected, then
* i) "Edit" button is disabled
* ii) "Merge to" field is disabled
*
*/
BGridLayout* gridLayout = new BGridLayout();
if ( !gridLayout )
{
/* Panic! */
exit( 1 );
}
// Margins from the sides of the view and spacing between the elements
gridLayout->SetInsets( 5, 5, 5, 5 );
gridLayout->SetHorizontalSpacing( 10 );
gridLayout->SetVerticalSpacing( 10 );
this->SetLayout( gridLayout );
gridLayout->SetExplicitAlignment( BAlignment( B_ALIGN_USE_FULL_WIDTH, B_ALIGN_USE_FULL_HEIGHT ) );
gridLayout->SetExplicitMinSize( BSize( (this->Bounds()).Width(), (this->Bounds()).Height() ) );
BRect rect = gridLayout->Frame();
printf ( "The frame is %d pixels wide and %d pixels high.\n",
(int )rect.Width(),
(int )rect.Height() );
/* Creating the CategoryListView with its scroller */
BRect r( this->Bounds() );
r.InsetBySelf( 5, 10 ); // Margins near the border of the view
r.right = (int)(r.right / 2) - B_V_SCROLL_BAR_WIDTH;
r.bottom -= 0;
listView = new CategoryListView( r, "List View" );
if ( ! listView ) {
/* Panic! */
exit( 1 );
}
BLooper* looper = this->Looper();
if ( looper && looper->LockLooper() )
{
looper->AddHandler( ( BHandler* )this );
looper->UnlockLooper();
}
scroller = new BScrollView( "Scroller",
listView,
B_FOLLOW_LEFT | B_FOLLOW_TOP,
0, // Flags
true,
true );
if ( !scroller )
{
/* Panic! */
exit( 1 );
}
layoutItem = gridLayout->AddView( scroller, 0, 0, 1, 3 );
if ( !layoutItem ) {
/* Panic! */
exit( 1 );
}
layoutItem->SetExplicitAlignment( BAlignment( B_ALIGN_LEFT,
B_ALIGN_USE_FULL_HEIGHT ) );
toSend = new BMessage( kCategoryInvoked );
if ( !toSend )
{
/* Panic! */
exit( 1 );
}
listView->SetInvocationMessage( toSend );
toSend = new BMessage( kCategorySelected );
if ( !toSend )
{
/* Panic! */
exit( 1 );
}
listView->SetSelectionMessage( toSend );
r = listView->Bounds();
r.bottom += B_H_SCROLL_BAR_HEIGHT + 3;
r.right -= ( B_V_SCROLL_BAR_WIDTH + 10 );
layoutItem->SetExplicitMinSize( BSize( ( B_V_SCROLL_BAR_WIDTH * 2 ), r.Height() ) );
gridLayout->SetMaxColumnWidth( 0, r.Width()-70 );
gridLayout->SetMaxColumnWidth( 1, r.Width()-66 );
// Add categories to the list
PopulateCategoriesView();
/* Creating the buttons */
// Add new category button
toSend = new BMessage( kAddNewCategory );
addButton = new BButton( BRect( 0, 0, 1, 1),
"Add category",
"Add category",
toSend,
B_FOLLOW_H_CENTER | B_FOLLOW_V_CENTER );
if ( !toSend || !addButton ) {
/* Panic! */
exit( 1 );
}
addButton->ResizeToPreferred();
addButton->SetTarget( this );
layoutItem = gridLayout->AddView( addButton, 1, 0, 1, 1 );
layoutItem->SetExplicitAlignment( BAlignment( B_ALIGN_HORIZONTAL_CENTER, B_ALIGN_VERTICAL_CENTER ) );
// Edit old category button
toSend = new BMessage( kCategoryInvoked );
editButton = new BButton( BRect( 0, 0, 1, 1),
"Edit category",
"Edit category",
toSend,
B_FOLLOW_H_CENTER | B_FOLLOW_V_CENTER );
if ( !toSend || !editButton ) {
/* Panic! */
exit( 1 );
}
editButton->ResizeToPreferred();
editButton->SetTarget( this );
layoutItem = gridLayout->AddView( editButton, 1, 1, 1, 1 );
layoutItem->SetExplicitAlignment( BAlignment( B_ALIGN_HORIZONTAL_CENTER, B_ALIGN_VERTICAL_CENTER ) );
// Edit category button is disabled by default;
// it's enabled when user chooses a category in the list.
editButton->SetEnabled( false );
/* Creating the menu of merging a category */
// Create a label
BGroupLayout* groupLayout = new BGroupLayout( B_VERTICAL );
if ( !groupLayout )
{
/* Panic! */
exit( 1 );
}
gridLayout->AddItem( groupLayout, 1, 2, 1, 1 );
groupLayout->SetExplicitAlignment( BAlignment( B_ALIGN_LEFT, B_ALIGN_TOP ) );
mergeToLabel = new BStringView( BRect( 0, 0, 1, 1 ),
"Merge to label",
"Merge selected category into:" );
if ( !mergeToLabel ) {
/* Panic! */
exit( 1 );
}
mergeToLabel->ResizeToPreferred();
layoutItem = groupLayout->AddView( mergeToLabel );
layoutItem->SetExplicitAlignment( BAlignment( B_ALIGN_LEFT, B_ALIGN_TOP ) );
// Create the menu
BMessage templateMessage( kMergeIntoCategory );
listMenu = new CategoryMenu( "Select category to merge to:", true, &templateMessage );
if ( !listMenu )
{
/* Panic! */
exit( 1 );
}
menuField = new BMenuField( mergeToLabel->Bounds(),
"Merge to field",
NULL,
listMenu );
if ( !menuField ) {
/* Panic! */
exit( 1 );
}
menuField->SetDivider( 0 );
// Just like the "Edit" button above, the menu is initially disabled.
menuField->SetEnabled( false );
layoutItem = groupLayout->AddView( menuField );
layoutItem->SetExplicitAlignment( BAlignment( B_ALIGN_USE_FULL_WIDTH, B_ALIGN_TOP ) );
for ( int index = 0; index < gridLayout->CountColumns(); ++index )
{
gridLayout->SetColumnWeight( index, 1 );
}
for ( int index = 0; index < gridLayout->CountRows(); ++index )
{
gridLayout->SetRowWeight( index, 1 );
}
gridLayout->InvalidateLayout();
} // <-- end of constructor of CategoryPreferencesView
/*!
* \brief The constructor of CalendarControl.
* \param[in] frame The outer bounds of the control.
* \param[in] name Name of the control.
* \param[in] labelInForCalendar The label of the calendar part of control.
* \param[in] calModuleName ID of the calendar module used.
* \param[in] initialTime The initial time to be set, passed in seconds.
* If 0, current time is set.
* \param[in] toSend Message sent when the control's value is changed.
* \attention It's assumed that calendar modules were already initialized prior
* to calling this function.
*/
CalendarControl::CalendarControl(BRect frame,
const char* name,
const BString& labelInForCalendar,
const BString& calModuleName,
time_t initialTime,
BMessage* toSend )
:
BControl( frame, name, labelInForCalendar.String(), toSend,
B_FOLLOW_ALL_SIDES,
B_NAVIGABLE | B_WILL_DRAW | B_FRAME_EVENTS ),
fLabel(NULL),
fDateLabel(NULL),
fDateSelector( NULL ),
fLastError( B_OK )
{
// Firstly, set the calendar module
this->fCalModule = utl_FindCalendarModule( calModuleName );
if ( this->fCalModule == NULL ) {
fLastError = B_BAD_VALUE;
return;
}
// Load the preferences of this calendar module
ParsePreferences();
// Init the internal data to submitted time representation
InitTimeRepresentation( initialTime );
// Create the UI elements
fLabel = new BStringView( BRect( 0, 0, 1, 1 ),
"label",
labelInForCalendar.String() );
if ( !fLabel) {
/* Panic! */
fLastError = B_NO_MEMORY;
return;
}
fLabel->ResizeToPreferred();
fDateLabel = new BStringView( BRect( 0, 0, 1, 1 ),
"dateLabel",
NULL );
if ( !fDateLabel ) {
/* Panic! */
fLastError = B_NO_MEMORY;
return;
}
fCalendarModuleLabel = new BStringView( BRect( 0, 0, 1, 1 ),
"label for the calendar module selector",
"Calendar:" );
if ( !fCalendarModuleLabel ) {
/* Panic! */
fLastError = B_NO_MEMORY;
return;
}
fCalendarModuleLabel->ResizeToPreferred();
fCalendarsMenu = CreateMenuOfCalendarModules();
if ( !fCalendarsMenu ) {
/* Panic! */
fLastError = B_NO_MEMORY;
return;
}
fCalendarModuleSelector = new BMenuField( BRect( 0, 0, 1, 1 ),
"calendar module selector",
NULL, // Label is created separately
fCalendarsMenu );
if ( !fCalendarModuleSelector ) {
/* Panic! */
fLastError = B_NO_MEMORY;
return;
}
fCalendarModuleSelector->ResizeToPreferred();
// Create the menu
CreateMenu();
BRect stringViewFrame = fLabel->Frame();
BPoint topLeftCorner = stringViewFrame.RightTop();
BSize size( BUTTON_WIDTH, stringViewFrame.Height() + SPACING );
fMenuBar = new BMenuBar( BRect(topLeftCorner, size),
"menuBar",
B_FOLLOW_RIGHT | B_FOLLOW_TOP,
B_ITEMS_IN_ROW,
false);
if (! fMenuBar) {
// Panic!
fLastError = B_NO_MEMORY;
return;
}
fMenuBar->SetBorder( B_BORDER_EACH_ITEM );
fMenuBar->AddItem( fDateSelector );
// Update the selected date label to currently selected moment of time
UpdateText();
// Initializing the layout
BGridLayout* lay = new BGridLayout( );
if (!lay) {
// Panic!
fLastError = B_NO_MEMORY;
return;
}
lay->SetInsets(0, 5, 0, 0);
lay->SetSpacing( 10, 5 );
lay->SetExplicitAlignment( BAlignment( B_ALIGN_USE_FULL_WIDTH, B_ALIGN_MIDDLE ) );
this->SetLayout(lay);
BLayoutItem* layoutItem;
layoutItem = lay->AddView( fLabel, 0, 0 );
layoutItem->SetExplicitAlignment( BAlignment( B_ALIGN_LEFT, B_ALIGN_TOP ) );
layoutItem = lay->AddView( fDateLabel, 1, 0 );
layoutItem->SetExplicitAlignment( BAlignment( B_ALIGN_USE_FULL_WIDTH, B_ALIGN_TOP ) );
layoutItem = lay->AddView( fMenuBar, 2, 0 );
layoutItem->SetExplicitAlignment( BAlignment( B_ALIGN_RIGHT, B_ALIGN_TOP ) );
layoutItem->SetExplicitMaxSize( size );
layoutItem = lay->AddView( fCalendarModuleLabel, 0, 1 );
layoutItem->SetExplicitAlignment( BAlignment( B_ALIGN_LEFT, B_ALIGN_MIDDLE ) );
layoutItem = lay->AddView( fCalendarModuleSelector, 1, 1 );
layoutItem->SetExplicitAlignment( BAlignment( B_ALIGN_USE_FULL_WIDTH, B_ALIGN_TOP ) );
lay->SetColumnWeight( 0, 0 );
lay->SetColumnWeight( 1, 1000 );
lay->SetColumnWeight( 2, 0 );
lay->SetMaxColumnWidth( 2, BUTTON_WIDTH );
this->InvalidateLayout();
this->Relayout();
this->Invalidate();
fLastError = B_OK;
}
