mirror of https://github.com/stella-emu/stella.git
Updated ListWidget to extend EditableWidget class (new code from ScummVM
CVS). This means you can now edit the contents of a ListWidget, and do something with those new contents based on the signal that's emitted. git-svn-id: svn://svn.code.sf.net/p/stella/code/trunk@499 8b62c5a3-ac7e-4cc8-8f21-d9a121418aba
This commit is contained in:
stephena
parent
ab9e047d49
commit
eb792b159a
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@ -13,7 +13,7 @@
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// See the file "license" for information on usage and redistribution of
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// this file, and for a DISCLAIMER OF ALL WARRANTIES.
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//
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// $Id: CheatWidget.cxx,v 1.3 2005-06-14 18:55:36 stephena Exp $
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// $Id: CheatWidget.cxx,v 1.4 2005-06-15 15:34:35 stephena Exp $
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//
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// Based on code from ScummVM - Scumm Interpreter
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// Copyright (C) 2002-2004 The ScummVM project
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@ -122,6 +122,18 @@ void CheatWidget::handleCommand(CommandSender* sender, int cmd, int data)
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case kRestartCmd:
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doRestart();
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break;
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case kListItemDataChangedCmd:
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cerr << "data changed\n";
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break;
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case kListItemDoubleClickedCmd:
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cerr << "kListItemDoubleClickedCmd\n";
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break;
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case kListItemActivatedCmd:
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cerr << "kListItemActivatedCmd\n";
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break;
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}
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}
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@ -13,7 +13,7 @@
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// See the file "license" for information on usage and redistribution of
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// this file, and for a DISCLAIMER OF ALL WARRANTIES.
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//
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// $Id: ListWidget.cxx,v 1.15 2005-06-14 01:11:48 stephena Exp $
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// $Id: ListWidget.cxx,v 1.16 2005-06-15 15:34:35 stephena Exp $
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//
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// Based on code from ScummVM - Scumm Interpreter
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// Copyright (C) 2002-2004 The ScummVM project
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@ -30,15 +30,17 @@
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#include "ListWidget.hxx"
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#include "bspf.hxx"
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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ListWidget::ListWidget(GuiObject* boss, int x, int y, int w, int h)
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: Widget(boss, x, y, w - kScrollBarWidth, h),
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CommandSender(boss)
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: EditableWidget(boss, x, y, w, h),
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CommandSender(boss)
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{
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_w = w - kScrollBarWidth;
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_flags = WIDGET_ENABLED | WIDGET_CLEARBG | WIDGET_RETAIN_FOCUS |
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WIDGET_TAB_NAVIGATE;
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_type = kListWidget;
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_editMode = false;
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_numberingMode = kListNumberingOne;
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_entriesPerPage = (_h - 2) / kLineHeight;
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_currentPos = 0;
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@ -46,16 +48,15 @@ ListWidget::ListWidget(GuiObject* boss, int x, int y, int w, int h)
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_scrollBar = new ScrollBarWidget(boss, _x + _w, _y, kScrollBarWidth, _h);
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_scrollBar->setTarget(this);
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_currentKeyDown = 0;
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_caretVisible = false;
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_caretTime = 0;
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_quickSelectTime = 0;
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// The item is selected, thus _bgcolor is used to draw the caret and
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// _textcolorhi to erase it
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_caretInverse = true;
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// FIXME: This flag should come from widget definition
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_editable = true;
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_editMode = false;
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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@ -68,38 +69,26 @@ void ListWidget::setSelected(int item)
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{
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assert(item >= -1 && item < (int)_list.size());
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if(isEnabled() && _selectedItem != item)
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if (isEnabled() && _selectedItem != item)
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{
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int oldSelectedItem = _selectedItem;
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_selectedItem = item;
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if (_editMode)
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{
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// undo any changes made
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_list[oldSelectedItem] = _backupString;
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_editMode = false;
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drawCaret(true);
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}
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abortEditMode();
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_selectedItem = item;
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sendCommand(kListSelectionChangedCmd, _selectedItem);
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_currentPos = _selectedItem - _entriesPerPage / 2;
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scrollToCurrent();
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draw();
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_boss->instance()->frameBuffer().refresh();
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instance()->frameBuffer().refresh();
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}
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void ListWidget::setList(const StringList& list)
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{
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if (_editMode && _caretVisible)
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drawCaret(true);
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int size = list.size();
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_list = list;
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if (_currentPos >= size)
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_currentPos = size - 1;
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if (_currentPos < 0)
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@ -137,31 +126,31 @@ void ListWidget::scrollBarRecalc()
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void ListWidget::handleMouseDown(int x, int y, int button, int clickCount)
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{
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if (isEnabled())
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if (!isEnabled())
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return;
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// A click indicates this widget has been selected
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// It should receive focus (because it has the WIDGET_TAB_NAVIGATE property)
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receivedFocus();
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// First check whether the selection changed
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int newSelectedItem;
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newSelectedItem = findItem(x, y);
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if (newSelectedItem > (int)_list.size() - 1)
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newSelectedItem = -1;
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if (_selectedItem != newSelectedItem)
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{
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// A click indicated this widget has been selected
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// It should receive focus (because it has the WIDGET_TAB_NAVIGATE property)
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receivedFocus();
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int oldSelectedItem = _selectedItem;
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_selectedItem = (y - 1) / kLineHeight + _currentPos;
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if (_selectedItem > (int)_list.size() - 1)
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_selectedItem = -1;
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if (oldSelectedItem != _selectedItem)
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{
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if (_editMode)
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{
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// undo any changes made
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_list[oldSelectedItem] = _backupString;
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_editMode = false;
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drawCaret(true);
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}
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sendCommand(kListSelectionChangedCmd, _selectedItem);
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_boss->instance()->frameBuffer().refresh();
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}
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draw();
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if (_editMode)
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abortEditMode();
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_selectedItem = newSelectedItem;
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sendCommand(kListSelectionChangedCmd, _selectedItem);
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instance()->frameBuffer().refresh();
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}
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// TODO: Determine where inside the string the user clicked and place the
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// caret accordingly. See _editScrollOffset and EditTextWidget::handleMouseDown.
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draw();
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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@ -169,8 +158,14 @@ void ListWidget::handleMouseUp(int x, int y, int button, int clickCount)
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{
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// If this was a double click and the mouse is still over the selected item,
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// send the double click command
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if (clickCount == 2 && (_selectedItem == (y - 1) / kLineHeight + _currentPos))
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if (clickCount == 2 && (_selectedItem == findItem(x, y)))
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{
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sendCommand(kListItemDoubleClickedCmd, _selectedItem);
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// Start edit mode
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if(_editable && !_editMode)
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startEditMode();
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}
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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@ -179,6 +174,12 @@ void ListWidget::handleMouseWheel(int x, int y, int direction)
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_scrollBar->handleMouseWheel(x, y, direction);
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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int ListWidget::findItem(int x, int y) const
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{
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return (y - 1) / kLineHeight + _currentPos;
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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static bool matchingCharsIgnoringCase(string s, string pattern)
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{
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@ -202,7 +203,7 @@ bool ListWidget::handleKeyDown(int ascii, int keycode, int modifiers)
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bool dirty = false;
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int oldSelectedItem = _selectedItem;
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if (!_editMode && isalnum((char)ascii))
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if (!_editMode && isalpha((char)ascii))
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{
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// Quick selection mode: Go to first list item starting with this key
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// (or a substring accumulated from the last couple key presses).
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@ -215,8 +216,6 @@ bool ListWidget::handleKeyDown(int ascii, int keycode, int modifiers)
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else
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_quickSelectStr += (char)ascii;
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_quickSelectTime = time + 300; // TODO: Turn this into a proper constant (kQuickSelectDelay ?)
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// FIXME: This is bad slow code (it scans the list linearly each time a
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// key is pressed); it could be much faster. Only of importance if we have
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// quite big lists to deal with -- so for now we can live with this lazy
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@ -232,48 +231,19 @@ bool ListWidget::handleKeyDown(int ascii, int keycode, int modifiers)
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}
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newSelectedItem++;
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}
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scrollToCurrent();
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}
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else if (_editMode)
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{
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if (_caretVisible)
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drawCaret(true);
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switch (keycode)
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{
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case '\n': // enter/return
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case '\r':
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// confirm edit and exit editmode
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_editMode = false;
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dirty = true;
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sendCommand(kListItemActivatedCmd, _selectedItem);
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break;
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case 27: // escape
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// abort edit and exit editmode
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_editMode = false;
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dirty = true;
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_list[_selectedItem] = _backupString;
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break;
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case 8: // backspace
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_list[_selectedItem].erase(_list[_selectedItem].length()-1);
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dirty = true;
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break;
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default:
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if (isprint(ascii))
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{
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_list[_selectedItem] += (char)ascii;
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dirty = true;
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}
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else
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handled = false;
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}
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// Class EditableWidget handles all text editing related key presses for us
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handled = EditableWidget::handleKeyDown(ascii, keycode, modifiers);
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}
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else // not editmode
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else
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{
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// not editmode
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switch (keycode)
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{
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case '\n': // enter/return
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case '\n': // enter/return
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case '\r':
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if (_selectedItem >= 0)
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{
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@ -281,47 +251,47 @@ bool ListWidget::handleKeyDown(int ascii, int keycode, int modifiers)
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if (_editable && (_currentKeyDown != '\n' && _currentKeyDown != '\r'))
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{
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dirty = true;
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_editMode = true;
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_backupString = _list[_selectedItem];
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startEditMode();
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}
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else
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sendCommand(kListItemActivatedCmd, _selectedItem);
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}
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break;
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case 256+17: // up arrow
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case 256+17: // up arrow
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if (_selectedItem > 0)
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_selectedItem--;
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break;
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case 256+18: // down arrow
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case 256+18: // down arrow
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if (_selectedItem < (int)_list.size() - 1)
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_selectedItem++;
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break;
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case 256+24: // pageup
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case 256+24: // pageup
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_selectedItem -= _entriesPerPage - 1;
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if (_selectedItem < 0)
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_selectedItem = 0;
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break;
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case 256+25: // pagedown
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case 256+25: // pagedown
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_selectedItem += _entriesPerPage - 1;
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if (_selectedItem >= (int)_list.size() )
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_selectedItem = _list.size() - 1;
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break;
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if (_selectedItem >= (int)_list.size() )
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_selectedItem = _list.size() - 1;
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break;
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case 256+22: // home
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case 256+22: // home
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_selectedItem = 0;
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break;
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case 256+23: // end
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case 256+23: // end
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_selectedItem = _list.size() - 1;
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break;
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default:
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handled = false;
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}
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scrollToCurrent();
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}
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@ -334,9 +304,10 @@ bool ListWidget::handleKeyDown(int ascii, int keycode, int modifiers)
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// also draw scrollbar
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_scrollBar->draw();
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_boss->instance()->frameBuffer().refresh();
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instance()->frameBuffer().refresh();
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}
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_currentKeyDown = keycode;
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return handled;
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}
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@ -352,7 +323,6 @@ bool ListWidget::handleKeyUp(int ascii, int keycode, int modifiers)
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void ListWidget::lostFocusWidget()
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{
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_editMode = false;
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drawCaret(true);
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draw();
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}
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@ -377,6 +347,7 @@ void ListWidget::drawWidget(bool hilite)
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FrameBuffer& fb = _boss->instance()->frameBuffer();
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int i, pos, len = _list.size();
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string buffer;
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int deltax;
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// Draw a thin frame around the list.
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fb.hLine(_x, _y, _x + _w - 1, kColor);
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@ -386,67 +357,69 @@ void ListWidget::drawWidget(bool hilite)
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// Draw the list items
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for (i = 0, pos = _currentPos; i < _entriesPerPage && pos < len; i++, pos++)
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{
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if (_numberingMode == kListNumberingZero || _numberingMode == kListNumberingOne)
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{
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char temp[10];
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sprintf(temp, "%2d. ", (pos + _numberingMode));
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buffer = temp;
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buffer += _list[pos];
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}
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else
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buffer = _list[pos];
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const OverlayColor textColor = (_selectedItem == pos && _hasFocus)
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? kBGColor : kTextColor;
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const int y = _y + 2 + kLineHeight * i;
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// Draw the selected item inverted, on a highlighted background.
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if (_selectedItem == pos)
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{
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if (_hasFocus)
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if (_hasFocus && !_editMode)
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fb.fillRect(_x + 1, _y + 1 + kLineHeight * i, _w - 1, kLineHeight, kTextColorHi);
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else
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fb.frameRect(_x + 1, _y + 1 + kLineHeight * i, _w - 1, kLineHeight, kTextColorHi);
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}
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fb.drawString(_font, buffer, _x + 2, _y + 2 + kLineHeight * i, _w - 4,
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(_selectedItem == pos && _hasFocus) ? kBGColor : kTextColor);
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// If in numbering mode, we first print a number prefix
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if (_numberingMode != kListNumberingOff)
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{
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char temp[10];
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sprintf(temp, "%2d. ", (pos + _numberingMode));
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buffer = temp;
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fb.drawString(_font, buffer, _x + 2, y, _w - 4, textColor);
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}
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GUI::Rect r(getEditRect());
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if (_selectedItem == pos && _editMode)
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{
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buffer = _editString;
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adjustOffset();
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deltax = -_editScrollOffset;
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fb.drawString(_font, buffer, _x + r.left, y, r.width(), kTextColor,
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kTextAlignLeft, deltax, false);
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}
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else
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{
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buffer = _list[pos];
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deltax = 0;
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fb.drawString(_font, buffer, _x + r.left, y, r.width(), kTextColor);
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}
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}
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// Only draw the caret while editing, and if it's in the current viewport
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if(_editMode && (_selectedItem >= _scrollBar->_currentPos) &&
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(_selectedItem < _scrollBar->_currentPos + _entriesPerPage))
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drawCaret();
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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int ListWidget::getCaretPos() const
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GUI::Rect ListWidget::getEditRect() const
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{
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int caretpos = 0;
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GUI::Rect r(2, 1, _w - 2 , kLineHeight);
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const int offset = (_selectedItem - _currentPos) * kLineHeight;
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r.top += offset;
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r.bottom += offset;
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if (_numberingMode == kListNumberingZero || _numberingMode == kListNumberingOne)
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if (_numberingMode != kListNumberingOff)
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{
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char temp[10];
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sprintf(temp, "%2d. ", (_selectedItem + _numberingMode));
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caretpos += _font->getStringWidth(temp);
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// FIXME: Assumes that all digits have the same width.
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sprintf(temp, "%2d. ", (_list.size() - 1 + _numberingMode));
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r.left += _font->getStringWidth(temp);
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}
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caretpos += _font->getStringWidth(_list[_selectedItem]);
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return caretpos;
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}
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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void ListWidget::drawCaret(bool erase)
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{
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// Only draw if item is visible
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if (_selectedItem < _currentPos || _selectedItem >= _currentPos + _entriesPerPage)
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return;
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if (!isVisible() || !_boss->isVisible())
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return;
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FrameBuffer& fb = _boss->instance()->frameBuffer();
|
||||
|
||||
// The item is selected, thus _bgcolor is used to draw the caret and _textcolorhi to erase it
|
||||
OverlayColor color = erase ? kTextColorHi : kBGColor;
|
||||
int x = getAbsX() + 3;
|
||||
int y = getAbsY() + 1;
|
||||
|
||||
y += (_selectedItem - _currentPos) * kLineHeight;
|
||||
x += getCaretPos();
|
||||
|
||||
fb.vLine(x, y, y+kLineHeight, color);
|
||||
|
||||
_caretVisible = !erase;
|
||||
return r;
|
||||
}
|
||||
|
||||
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
|
|
@ -473,30 +446,35 @@ void ListWidget::scrollToCurrent()
|
|||
_scrollBar->recalc();
|
||||
}
|
||||
|
||||
|
||||
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
void ListWidget::startEditMode()
|
||||
{
|
||||
cerr << "ListWidget::startEditMode()\n";
|
||||
|
||||
if (_editable && !_editMode && _selectedItem >= 0)
|
||||
{
|
||||
_editMode = true;
|
||||
_backupString = _list[_selectedItem];
|
||||
setEditString(_list[_selectedItem]);
|
||||
draw();
|
||||
}
|
||||
}
|
||||
|
||||
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
void ListWidget::endEditMode()
|
||||
{
|
||||
if (!_editMode)
|
||||
return;
|
||||
|
||||
// send a message that editing finished with a return/enter key press
|
||||
_editMode = false;
|
||||
_list[_selectedItem] = _editString;
|
||||
sendCommand(kListItemDataChangedCmd, _selectedItem);
|
||||
}
|
||||
|
||||
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
||||
void ListWidget::abortEditMode()
|
||||
{
|
||||
cerr << "ListWidget::abortEditMode()\n";
|
||||
|
||||
if (_editMode)
|
||||
{
|
||||
_editMode = false;
|
||||
_list[_selectedItem] = _backupString;
|
||||
drawCaret(true);
|
||||
draw();
|
||||
}
|
||||
// undo any changes made
|
||||
assert(_selectedItem >= 0);
|
||||
_editMode = false;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -13,7 +13,7 @@
|
|||
// See the file "license" for information on usage and redistribution of
|
||||
// this file, and for a DISCLAIMER OF ALL WARRANTIES.
|
||||
//
|
||||
// $Id: ListWidget.hxx,v 1.4 2005-06-07 01:14:39 stephena Exp $
|
||||
// $Id: ListWidget.hxx,v 1.5 2005-06-15 15:34:35 stephena Exp $
|
||||
//
|
||||
// Based on code from ScummVM - Scumm Interpreter
|
||||
// Copyright (C) 2002-2004 The ScummVM project
|
||||
|
|
@ -24,10 +24,12 @@
|
|||
|
||||
#include "GuiObject.hxx"
|
||||
#include "Widget.hxx"
|
||||
#include "ScrollBarWidget.hxx"
|
||||
#include "Command.hxx"
|
||||
#include "StringList.hxx"
|
||||
#include "bspf.hxx"
|
||||
#include "EditableWidget.hxx"
|
||||
#include "Rect.hxx"
|
||||
|
||||
class ScrollBarWidget;
|
||||
|
||||
enum NumberingMode {
|
||||
kListNumberingOff = -1,
|
||||
|
|
@ -39,12 +41,12 @@ enum NumberingMode {
|
|||
enum {
|
||||
kListItemDoubleClickedCmd = 'LIdb', // double click on item - 'data' will be item index
|
||||
kListItemActivatedCmd = 'LIac', // item activated by return/enter - 'data' will be item index
|
||||
kListItemDataChangedCmd = 'LIch', // item data changed - 'data' will be item index
|
||||
kListSelectionChangedCmd = 'Lsch' // selection changed - 'data' will be item index
|
||||
};
|
||||
|
||||
|
||||
/* ListWidget */
|
||||
class ListWidget : public Widget, public CommandSender
|
||||
class ListWidget : public EditableWidget, public CommandSender
|
||||
{
|
||||
public:
|
||||
ListWidget(GuiObject* boss, int x, int y, int w, int h);
|
||||
|
|
@ -57,35 +59,35 @@ class ListWidget : public Widget, public CommandSender
|
|||
const string& getSelectedString() const { return _list[_selectedItem]; }
|
||||
bool isEditable() const { return _editable; }
|
||||
void setEditable(bool editable) { _editable = editable; }
|
||||
void setNumberingMode(NumberingMode numberingMode) { _numberingMode = numberingMode; }
|
||||
void setNumberingMode(NumberingMode numberingMode) { _numberingMode = numberingMode; }
|
||||
void scrollTo(int item);
|
||||
|
||||
virtual void handleMouseDown(int x, int y, int button, int clickCount);
|
||||
virtual void handleMouseUp(int x, int y, int button, int clickCount);
|
||||
virtual void handleMouseWheel(int x, int y, int direction);
|
||||
virtual void handleMouseEntered(int button) {};
|
||||
virtual void handleMouseLeft(int button) {};
|
||||
virtual bool handleKeyDown(int ascii, int keycode, int modifiers);
|
||||
virtual bool handleKeyUp(int ascii, int keycode, int modifiers);
|
||||
virtual void handleCommand(CommandSender* sender, int cmd, int data);
|
||||
|
||||
virtual bool wantsFocus() { return true; };
|
||||
|
||||
void scrollBarRecalc();
|
||||
virtual bool wantsFocus() { return true; }
|
||||
|
||||
void startEditMode();
|
||||
void abortEditMode();
|
||||
void endEditMode();
|
||||
|
||||
protected:
|
||||
void drawWidget(bool hilite);
|
||||
|
||||
int getCaretPos() const;
|
||||
void drawCaret(bool erase);
|
||||
|
||||
int findItem(int x, int y) const;
|
||||
void scrollBarRecalc();
|
||||
|
||||
void abortEditMode();
|
||||
|
||||
GUI::Rect getEditRect() const;
|
||||
|
||||
void lostFocusWidget();
|
||||
void scrollToCurrent();
|
||||
|
||||
protected:
|
||||
protected:
|
||||
StringList _list;
|
||||
bool _editable;
|
||||
bool _editMode;
|
||||
|
|
@ -97,9 +99,6 @@ class ListWidget : public Widget, public CommandSender
|
|||
int _currentKeyDown;
|
||||
string _backupString;
|
||||
|
||||
bool _caretVisible;
|
||||
int _caretTime;
|
||||
|
||||
string _quickSelectStr;
|
||||
int _quickSelectTime;
|
||||
};
|
||||
|
|
|
|||
Loading…
Reference in New Issue