Kwave::SelectionBorderItem Class Reference

#include <SelectionBorderItem.h>

Inheritance diagram for Kwave::SelectionBorderItem:

Collaboration diagram for Kwave::SelectionBorderItem:

Public Member Functions
	SelectionBorderItem (SignalView &view, Kwave::SignalManager &signal_manager, sample_index_t pos)
virtual	~SelectionBorderItem () Q_DECL_OVERRIDE
virtual Kwave::ViewItem::Flags	flags () const Q_DECL_OVERRIDE
virtual QString	toolTip (sample_index_t &ofs) Q_DECL_OVERRIDE
virtual QCursor	mouseCursor () const Q_DECL_OVERRIDE
virtual void	moveTo (const QPoint &mouse_pos) Q_DECL_OVERRIDE
Public Member Functions inherited from Kwave::ViewItem
	ViewItem (Kwave::SignalView &view, Kwave::SignalManager &signal_manager)
virtual	~ViewItem ()
virtual void	appendContextMenu (QMenu *parent)
virtual void	startDragging ()
virtual void	done ()

Private Attributes
Kwave::MouseMark	m_selection

Additional Inherited Members
Public Types inherited from Kwave::ViewItem
enum	Flag { None = 0, CanGrabAndMove = 1, CanDragAndDrop = 2 }
Signals inherited from Kwave::ViewItem
void	sigCommand (const QString &command)
Protected Attributes inherited from Kwave::ViewItem
Kwave::SignalView &	m_view
Kwave::SignalManager &	m_signal_manager

Detailed Description

Definition at line 39 of file SelectionBorderItem.h.

Constructor & Destructor Documentation

SelectionBorderItem()

Kwave::SelectionBorderItem::SelectionBorderItem	(	Kwave::SignalView &	view,
		Kwave::SignalManager &	signal_manager,
		sample_index_t	pos
	)

Constructor

Parameters

view	the owner (SignalView)
signal_manager	the corresponding SignalManager
pos	start position, either left or right border

Definition at line 28 of file SelectionBorderItem.cpp.

References Kwave::Selection::first(), Kwave::MouseMark::grep(), Kwave::Selection::last(), m_selection, Kwave::SignalManager::selection(), and Kwave::MouseMark::set().

    :Kwave::ViewItem(view, signal_manager),
     m_selection()
{
    m_selection.set(
        signal_manager.selection().first(),
        signal_manager.selection().last()
    );
    m_selection.grep(pos);
}

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~SelectionBorderItem()

Kwave::SelectionBorderItem::~SelectionBorderItem ( )

virtual

Destructor

Definition at line 44 of file SelectionBorderItem.cpp.

{
}

Member Function Documentation

flags()

Kwave::ViewItem::Flags Kwave::SelectionBorderItem::flags ( ) const

virtual

Returns flags describing the possible interactions with this object

See also

Kwave::ViewItem::Flags

Reimplemented from Kwave::ViewItem.

Definition at line 49 of file SelectionBorderItem.cpp.

References Kwave::ViewItem::CanGrabAndMove.

{
    return Kwave::ViewItem::CanGrabAndMove;
}

mouseCursor()

QCursor Kwave::SelectionBorderItem::mouseCursor ( ) const

virtual

Returns a mouse cursor used when moving the item

Reimplemented from Kwave::ViewItem.

Definition at line 78 of file SelectionBorderItem.cpp.

{
    return Qt::SizeHorCursor;
}

moveTo()

void Kwave::SelectionBorderItem::moveTo ( const QPoint &  mouse_pos )

virtual

handles updates when being moved with the mouse

Parameters

mouse_pos

position of the mouse, in pixel coordinates relative to the parent widget

Reimplemented from Kwave::ViewItem.

Definition at line 84 of file SelectionBorderItem.cpp.

References Kwave::MouseMark::left(), Kwave::MouseMark::length(), m_selection, Kwave::ViewItem::m_signal_manager, Kwave::ViewItem::m_view, Kwave::SignalView::offset(), Kwave::SignalView::pixels2samples(), Kwave::SignalManager::selectRange(), and Kwave::MouseMark::update().

{
    const sample_index_t new_pos = m_view.offset() +
                                   m_view.pixels2samples(mouse_pos.x());
    m_selection.update(new_pos);
    m_signal_manager.selectRange(m_selection.left(), m_selection.length());
}

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toolTip()

QString Kwave::SelectionBorderItem::toolTip ( sample_index_t &  ofs )

virtual

Can be overwritten to return a tooltip. The default implementation returns an empty string.

Parameters

ofs	sample index the tooltip should refer to (unused)

Returns

an already localized tooltip

Reimplemented from Kwave::ViewItem.

Definition at line 55 of file SelectionBorderItem.cpp.

References _, Kwave::MouseMark::left(), m_selection, Kwave::ViewItem::m_view, Kwave::ms2hms(), Kwave::MouseMark::right(), and Kwave::SignalView::samples2ms().

{
    sample_index_t first = m_selection.left();
    sample_index_t last  = m_selection.right();
    if (first == last) return QString(); // empty selection

    sample_index_t d_left  = (first < ofs) ? (ofs - first) : (first - ofs);
    sample_index_t d_right = (last  < ofs) ? (ofs - last) :  (last  - ofs);

    QString which;
    if (d_left <= d_right) {
        which = i18n("Selection, left border");
        ofs   = first;
    } else {
        which = i18n("Selection, right border");
        ofs   = last;
    }

    QString hms = Kwave::ms2hms(m_view.samples2ms(ofs));
    return _("%1\n%2\n%3").arg(which).arg(ofs).arg(hms);
}

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Member Data Documentation

m_selection

Kwave::MouseMark Kwave::SelectionBorderItem::m_selection

private

selection handler

Definition at line 85 of file SelectionBorderItem.h.

Referenced by moveTo(), SelectionBorderItem(), and toolTip().

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The documentation for this class was generated from the following files:

• libgui/SelectionBorderItem.h
• libgui/SelectionBorderItem.cpp