mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-15 22:28:10 +00:00
352 lines
8.7 KiB
C++
352 lines
8.7 KiB
C++
/* ScummVM - Scumm Interpreter
|
|
* Copyright (C) 2002-2003 The ScummVM project
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program 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 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*
|
|
* $Header$
|
|
*/
|
|
|
|
#include "stdafx.h"
|
|
#include "ListWidget.h"
|
|
#include "ScrollBarWidget.h"
|
|
#include "dialog.h"
|
|
#include "newgui.h"
|
|
|
|
|
|
ListWidget::ListWidget(Dialog *boss, int x, int y, int w, int h)
|
|
: Widget(boss, x, y, w - kScrollBarWidth, h), CommandSender(boss) {
|
|
_flags = WIDGET_ENABLED | WIDGET_CLEARBG | WIDGET_RETAIN_FOCUS | WIDGET_WANT_TICKLE;
|
|
_type = kListWidget;
|
|
_numberingMode = kListNumberingOne;
|
|
_entriesPerPage = (_h - 2) / kLineHeight;
|
|
_currentPos = 0;
|
|
_selectedItem = -1;
|
|
_scrollBar = new ScrollBarWidget(boss, _x + _w, _y, kScrollBarWidth, _h);
|
|
_scrollBar->setTarget(this);
|
|
_currentKeyDown = 0;
|
|
|
|
_caretVisible = false;
|
|
_caretTime = 0;
|
|
|
|
// FIXME: This flag should come from widget definition
|
|
_editable = true;
|
|
|
|
_editMode = false;
|
|
}
|
|
|
|
ListWidget::~ListWidget() {
|
|
}
|
|
|
|
void ListWidget::setList(const StringList &list) {
|
|
if (_editMode && _caretVisible)
|
|
drawCaret(true);
|
|
int size = list.size();
|
|
_list = list;
|
|
if (_currentPos >= size)
|
|
_currentPos = size - 1;
|
|
if (_currentPos < 0)
|
|
_currentPos = 0;
|
|
_selectedItem = -1;
|
|
_editMode = false;
|
|
scrollBarRecalc();
|
|
}
|
|
|
|
void ListWidget::scrollTo(int item) {
|
|
int size = _list.size();
|
|
if (item >= size)
|
|
item = size - 1;
|
|
if (item < 0)
|
|
item = 0;
|
|
|
|
if (_currentPos != item) {
|
|
_currentPos = item;
|
|
scrollBarRecalc();
|
|
}
|
|
}
|
|
|
|
void ListWidget::scrollBarRecalc() {
|
|
_scrollBar->_numEntries = _list.size();
|
|
_scrollBar->_entriesPerPage = _entriesPerPage;
|
|
_scrollBar->_currentPos = _currentPos;
|
|
_scrollBar->recalc();
|
|
}
|
|
|
|
void ListWidget::handleTickle() {
|
|
uint32 time = _boss->getGui()->get_time();
|
|
if (_editMode && _caretTime < time) {
|
|
_caretTime = time + kCaretBlinkTime;
|
|
if (_caretVisible) {
|
|
drawCaret(true);
|
|
} else {
|
|
drawCaret(false);
|
|
}
|
|
}
|
|
}
|
|
|
|
void ListWidget::handleMouseDown(int x, int y, int button, int clickCount) {
|
|
if (isEnabled()) {
|
|
int oldSelectedItem = _selectedItem;
|
|
_selectedItem = (y - 1) / kLineHeight + _currentPos;
|
|
if (_selectedItem > _list.size() - 1)
|
|
_selectedItem = -1;
|
|
|
|
if (oldSelectedItem != _selectedItem) {
|
|
if (_editMode) {
|
|
// undo any changes made
|
|
_list[oldSelectedItem] = _backupString;
|
|
_editMode = false;
|
|
drawCaret(true);
|
|
}
|
|
sendCommand(kListSelectionChangedCmd, _selectedItem);
|
|
}
|
|
draw();
|
|
}
|
|
}
|
|
|
|
void ListWidget::handleMouseUp(int x, int y, int button, int clickCount) {
|
|
// If this was a double click and the mouse is still over the selected item,
|
|
// send the double click command
|
|
if (clickCount == 2 && (_selectedItem == (y - 1) / kLineHeight + _currentPos)) {
|
|
sendCommand(kListItemDoubleClickedCmd, _selectedItem);
|
|
}
|
|
}
|
|
|
|
void ListWidget::handleMouseWheel(int x, int y, int direction) {
|
|
_scrollBar->handleMouseWheel(x, y, direction);
|
|
}
|
|
|
|
bool ListWidget::handleKeyDown(uint16 ascii, int keycode, int modifiers) {
|
|
bool handled = true;
|
|
bool dirty = false;
|
|
int oldSelectedItem = _selectedItem;
|
|
|
|
if (_editMode) {
|
|
|
|
if (_caretVisible)
|
|
drawCaret(true);
|
|
|
|
switch (keycode) {
|
|
case '\n': // enter/return
|
|
case '\r':
|
|
// enter, confirm edit and exit editmode
|
|
_editMode = false;
|
|
dirty = true;
|
|
sendCommand(kListItemActivatedCmd, _selectedItem);
|
|
break;
|
|
case 27: // escape
|
|
// ESC, abort edit and exit editmode
|
|
_editMode = false;
|
|
dirty = true;
|
|
_list[_selectedItem] = _backupString;
|
|
break;
|
|
case 8: // backspace
|
|
_list[_selectedItem].deleteLastChar();
|
|
dirty = true;
|
|
break;
|
|
default:
|
|
if (isprint((char)ascii)) {
|
|
_list[_selectedItem] += (char)ascii;
|
|
dirty = true;
|
|
} else {
|
|
handled = false;
|
|
}
|
|
}
|
|
|
|
} else {
|
|
// not editmode
|
|
|
|
switch (keycode) {
|
|
case '\n': // enter
|
|
case '\r':
|
|
if (_selectedItem >= 0) {
|
|
// override continuous enter keydown
|
|
if (_editable && (_currentKeyDown != '\n' && _currentKeyDown != '\r')) {
|
|
dirty = true;
|
|
_editMode = true;
|
|
_backupString = _list[_selectedItem];
|
|
}
|
|
}
|
|
break;
|
|
case 256+17: // up arrow
|
|
if (_selectedItem > 0)
|
|
_selectedItem--;
|
|
break;
|
|
case 256+18: // down arrow
|
|
if (_selectedItem < _list.size() - 1)
|
|
_selectedItem++;
|
|
break;
|
|
case 256+24: // pageup
|
|
_selectedItem -= _entriesPerPage - 1;
|
|
if (_selectedItem < 0)
|
|
_selectedItem = 0;
|
|
break;
|
|
case 256+25: // pagedown
|
|
_selectedItem += _entriesPerPage - 1;
|
|
if (_selectedItem >= _list.size() )
|
|
_selectedItem = _list.size() - 1;
|
|
break;
|
|
case 256+22: // home
|
|
_selectedItem = 0;
|
|
break;
|
|
case 256+23: // end
|
|
_selectedItem = _list.size() - 1;
|
|
break;
|
|
default:
|
|
handled = false;
|
|
}
|
|
|
|
scrollToCurrent();
|
|
}
|
|
|
|
if (dirty || _selectedItem != oldSelectedItem)
|
|
draw();
|
|
|
|
if (_selectedItem != oldSelectedItem) {
|
|
sendCommand(kListSelectionChangedCmd, _selectedItem);
|
|
// also draw scrollbar
|
|
_scrollBar->draw();
|
|
}
|
|
|
|
#if !defined(_WIN32_WCE) && !defined(__PALM_OS__)
|
|
// not done on WinCE / PalmOS because keyboard is emulated and
|
|
// keyup is not generated
|
|
|
|
_currentKeyDown = keycode;
|
|
#endif
|
|
|
|
return handled;
|
|
}
|
|
|
|
bool ListWidget::handleKeyUp(uint16 ascii, int keycode, int modifiers) {
|
|
if (keycode == _currentKeyDown)
|
|
_currentKeyDown = 0;
|
|
return true;
|
|
}
|
|
|
|
void ListWidget::lostFocusWidget() {
|
|
_editMode = false;
|
|
drawCaret(true);
|
|
draw();
|
|
}
|
|
|
|
void ListWidget::handleCommand(CommandSender *sender, uint32 cmd, uint32 data) {
|
|
switch (cmd) {
|
|
case kSetPositionCmd:
|
|
if (_currentPos != (int)data) {
|
|
_currentPos = data;
|
|
draw();
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
void ListWidget::drawWidget(bool hilite) {
|
|
NewGui *gui = _boss->getGui();
|
|
int i, pos, len = _list.size();
|
|
ScummVM::String buffer;
|
|
|
|
// Draw a thin frame around the list.
|
|
gui->hline(_x, _y, _x + _w - 1, gui->_color);
|
|
gui->hline(_x, _y + _h - 1, _x + _w - 1, gui->_shadowcolor);
|
|
gui->vline(_x, _y, _y + _h - 1, gui->_color);
|
|
|
|
// Draw the list items
|
|
for (i = 0, pos = _currentPos; i < _entriesPerPage && pos < len; i++, pos++) {
|
|
if (_numberingMode == kListNumberingZero || _numberingMode == kListNumberingOne) {
|
|
char temp[10];
|
|
sprintf(temp, "%2d. ", (pos + _numberingMode));
|
|
buffer = temp;
|
|
buffer += _list[pos];
|
|
} else
|
|
buffer = _list[pos];
|
|
|
|
if (_selectedItem == pos) {
|
|
if (_hasFocus)
|
|
gui->fillRect(_x + 1, _y + 1 + kLineHeight * i, _w - 1, kLineHeight, gui->_textcolorhi);
|
|
else
|
|
gui->frameRect(_x + 1, _y + 1 + kLineHeight * i, _w - 1, kLineHeight, gui->_textcolorhi);
|
|
}
|
|
gui->drawString(buffer, _x + 2, _y + 3 + kLineHeight * i, _w - 4,
|
|
(_selectedItem == pos && _hasFocus) ? gui->_bgcolor : gui->_textcolor);
|
|
}
|
|
}
|
|
|
|
void ListWidget::drawCaret(bool erase) {
|
|
// Only draw if item is visible
|
|
if (_selectedItem < _currentPos || _selectedItem >= _currentPos + _entriesPerPage)
|
|
return;
|
|
if (!isVisible() || !_boss->isVisible())
|
|
return;
|
|
|
|
NewGui *gui = _boss->getGui();
|
|
|
|
// The item is selected, thus _bgcolor is used to draw the caret and _textcolorhi to erase it
|
|
int16 color = erase ? gui->_textcolorhi : gui->_bgcolor;
|
|
int x = _x + _boss->getX() + 3;
|
|
int y = _y + _boss->getY() + 1;
|
|
ScummVM::String buffer;
|
|
|
|
y += (_selectedItem - _currentPos) * kLineHeight;
|
|
|
|
if (_numberingMode == kListNumberingZero || _numberingMode == kListNumberingOne) {
|
|
char temp[10];
|
|
sprintf(temp, "%2d. ", (_selectedItem + _numberingMode));
|
|
buffer = temp;
|
|
buffer += _list[_selectedItem];
|
|
} else
|
|
buffer = _list[_selectedItem];
|
|
|
|
x += gui->getStringWidth(buffer);
|
|
|
|
gui->vline(x, y, y+kLineHeight, color);
|
|
gui->addDirtyRect(x, y, 2, kLineHeight);
|
|
|
|
_caretVisible = !erase;
|
|
}
|
|
|
|
void ListWidget::scrollToCurrent() {
|
|
// Only do something if the current item is not in our view port
|
|
if (_selectedItem < _currentPos) {
|
|
// it's above our view
|
|
_currentPos = _selectedItem;
|
|
} else if (_selectedItem >= _currentPos + _entriesPerPage ) {
|
|
// it's below our view
|
|
_currentPos = _selectedItem - _entriesPerPage + 1;
|
|
}
|
|
|
|
if (_currentPos < 0)
|
|
_currentPos = 0;
|
|
|
|
_scrollBar->_currentPos = _currentPos;
|
|
_scrollBar->recalc();
|
|
}
|
|
|
|
void ListWidget::startEditMode() {
|
|
if (_editable && !_editMode && _selectedItem >= 0) {
|
|
_editMode = true;
|
|
_backupString = _list[_selectedItem];
|
|
draw();
|
|
}
|
|
}
|
|
|
|
void ListWidget::abortEditMode() {
|
|
if (_editMode) {
|
|
_editMode = false;
|
|
_list[_selectedItem] = _backupString;
|
|
drawCaret(true);
|
|
draw();
|
|
}
|
|
}
|