finalcut/src/flistbox.cpp

1617 lines
37 KiB
C++

// File: flistbox.cpp
// Provides: class FListBoxItem
// class FListBox
#include "fapp.h"
#include "flistbox.h"
#include "fscrollbar.h"
#include "fstatusbar.h"
//----------------------------------------------------------------------
// class FListBoxItem
//----------------------------------------------------------------------
// constructor and destructor
//----------------------------------------------------------------------
FListBoxItem::FListBoxItem()
: text()
, brackets(fc::NoBrackets)
, selected(false)
{ }
//----------------------------------------------------------------------
FListBoxItem::FListBoxItem (FString& txt)
: text(txt)
, brackets(fc::NoBrackets)
, selected(false)
{ }
//----------------------------------------------------------------------
FListBoxItem::FListBoxItem (const std::string& txt)
: text(txt)
, brackets(fc::NoBrackets)
, selected(false)
{ }
//----------------------------------------------------------------------
FListBoxItem::FListBoxItem (const char* txt)
: text(txt)
, brackets(fc::NoBrackets)
, selected(false)
{ }
//----------------------------------------------------------------------
FListBoxItem::~FListBoxItem()
{ }
//----------------------------------------------------------------------
// class FListBox
//----------------------------------------------------------------------
// constructor and destructor
//----------------------------------------------------------------------
FListBox::FListBox(FWidget* parent)
: FWidget(parent)
, data()
, VBar(0)
, HBar(0)
, text()
, inc_search()
, multiSelect(false)
, mouseSelect(false)
, dragScroll(FListBox::noScroll)
, scrollTimer(false)
, scrollRepeat(100)
, scrollDistance(1)
, current(0)
, last_current(-1)
, secect_from_item(-1)
, xoffset(0)
, yoffset(0)
, last_yoffset(-1)
, nf_offset(0)
, maxLineWidth(0)
{
init();
}
//----------------------------------------------------------------------
FListBox::~FListBox() // destructor
{
delAllTimer();
delete VBar;
delete HBar;
}
// private methods of FListBox
//----------------------------------------------------------------------
void FListBox::init()
{
if ( hasFocus() )
flags = FOCUS;
if ( isEnabled() )
flags |= ACTIVE;
nf_offset = isNewFont() ? 1 : 0;
foregroundColor = wc.dialog_fg;
backgroundColor = wc.dialog_bg;
VBar = new FScrollbar(fc::vertical, this);
VBar->setMinimum(0);
VBar->setValue(0);
VBar->hide();
HBar = new FScrollbar(fc::horizontal, this);
HBar->setMinimum(0);
HBar->setValue(0);
HBar->hide();
setGeometry (1, 1, 5, 4, false); // initialize geometry values
VBar->addCallback
(
"change-value",
_METHOD_CALLBACK (this, &FListBox::cb_VBarChange)
);
HBar->addCallback
(
"change-value",
_METHOD_CALLBACK (this, &FListBox::cb_HBarChange)
);
}
//----------------------------------------------------------------------
void FListBox::draw()
{
bool isFocus;
if ( current < 1 )
current = 1;
setUpdateVTerm(false);
setColor (foregroundColor, backgroundColor);
if ( isMonochron() )
setReverse(true);
if ( isNewFont() )
width--;
drawBorder();
if ( isNewFont() )
{
width++;
if ( ! VBar->isVisible() )
{
setColor (foregroundColor, backgroundColor);
for (int y=ypos+ymin; y < ypos+ymin+height-2; y++)
{
gotoxy(xpos+xmin+width-2, y);
print (' '); // clear right side of the scrollbar
}
}
}
drawLabel();
if ( isMonochron() )
setReverse(false);
setUpdateVTerm(true);
if ( VBar->isVisible() )
VBar->redraw();
if ( HBar->isVisible() )
HBar->redraw();
drawList();
isFocus = ((flags & FOCUS) != 0);
if ( isFocus && statusBar() )
{
FString msg = getStatusbarMessage();
FString curMsg = statusBar()->getMessage();
if ( curMsg != msg )
{
statusBar()->setMessage(msg);
statusBar()->drawMessage();
}
}
}
//----------------------------------------------------------------------
void FListBox::drawLabel()
{
FString txt;
uInt length;
if ( text.isNull() || text.isEmpty() )
return;
if ( Encoding == fc::VT100 )
unsetVT100altChar();
txt = " " + text + " ";
length = txt.getLength();
gotoxy (xpos+xmin, ypos+ymin-1);
if ( isEnabled() )
setColor(wc.label_emphasis_fg, wc.label_bg);
else
setColor(wc.label_inactive_fg, wc.label_inactive_bg);
if ( length <= uInt(width-2) )
print (txt);
else
{
print (text.left(uInt(width-4)));
setColor (wc.label_ellipsis_fg, wc.label_bg);
print("..");
}
}
//----------------------------------------------------------------------
void FListBox::drawList()
{
FString element;
uInt start, end, inc_len;
bool isFocus;
if ( data.empty() || height < 4 || width < 5 )
return;
isFocus = ((flags & FOCUS) != 0);
start = 0;
end = uInt(height-2);
inc_len = inc_search.getLength();
if ( end > count() )
end = count();
if ( last_yoffset >= 0
&& last_yoffset == yoffset
&& last_current != current )
{
// speed up: redraw only the changed rows
uInt last_pos = uInt(current - yoffset) - 1;
uInt current_pos = uInt(last_current - yoffset) - 1;
start = std::min(last_pos, current_pos);
end = std::max(last_pos, current_pos)+1;
}
setUpdateVTerm(false);
for (uInt y=start; y < end; y++)
{
gotoxy (xpos+xmin, ypos+ymin+int(y));
bool serach_mark = false;
bool lineHasBrackets = hasBrackets(int(y) + yoffset + 1);
bool isLineSelected = isSelected(int(y) + yoffset + 1);
bool isCurrentLine = bool(uInt(y) + uInt(yoffset) + 1 == uInt(current));
if ( isLineSelected )
{
if ( isMonochron() )
setBold();
else
setColor (wc.selected_list_fg, wc.selected_list_bg);
}
else
{
if ( isMonochron() )
unsetBold();
else
setColor (wc.list_fg, wc.list_bg);
}
if ( isCurrentLine )
{
if ( isFocus && getMaxColor() < 16 )
setBold();
if ( isLineSelected )
{
if ( isMonochron() )
setBold();
else if ( isFocus )
setColor ( wc.selected_current_element_focus_fg
, wc.selected_current_element_focus_bg );
else
setColor ( wc.selected_current_element_fg
, wc.selected_current_element_bg );
setCursorPos ( xpos+xmin+1
, ypos+ymin+int(y) ); // first character
}
else
{
if ( isMonochron() )
unsetBold();
if ( isFocus )
{
setColor ( wc.current_element_focus_fg
, wc.current_element_focus_bg );
if ( inc_len > 0 )
{
serach_mark = true;
int b = ( lineHasBrackets ) ? 1: 0;
setCursorPos ( xpos+xmin+int(inc_len)+b
, ypos+ymin+int(y) ); // last found character
}
else
setCursorPos ( xpos+xmin+1
, ypos+ymin+int(y) ); // first character
}
else
setColor ( wc.current_element_fg
, wc.current_element_bg );
}
if ( isMonochron() )
setReverse(false);
}
else
{
if ( isMonochron() )
setReverse(true);
else if ( isFocus && getMaxColor() < 16 )
unsetBold();
}
// print the entry
if ( isMonochron() && isCurrentLine )
print ('>');
else
print (' ');
if ( lineHasBrackets )
{
const wchar_t* element_str;
int full_length;
uInt len;
uInt i = 0;
uInt b = 0;
if ( xoffset == 0 )
{
b=1;
switch ( data[y+uInt(yoffset)].brackets )
{
case fc::NoBrackets:
break;
case fc::SquareBrackets:
print ('[');
break;
case fc::Parenthesis:
print ('(');
break;
case fc::CurlyBrackets:
print ('{');
break;
case fc::AngleBrackets:
print ('<');
break;
}
element = data[y+uInt(yoffset)].getText()
.mid ( uInt(1+xoffset)
, uInt(width-nf_offset-5) );
}
else
element = data[y+uInt(yoffset)].getText()
.mid ( uInt(xoffset)
, uInt(width-nf_offset-4) );
element_str = element.wc_str();
len = element.getLength();
for (; i < len; i++)
{
if ( serach_mark && i == 0 )
setColor ( wc.current_inc_search_element_fg
, wc.current_element_focus_bg );
if ( serach_mark && i == inc_len )
setColor ( wc.current_element_focus_fg
, wc.current_element_focus_bg );
print (element_str[i]);
}
full_length = int(data[y+uInt(yoffset)].getText().getLength());
if ( b+i < uInt(width-nf_offset-4) && xoffset <= full_length+1 )
{
if ( serach_mark && i == inc_len )
setColor ( wc.current_element_focus_fg
, wc.current_element_focus_bg );
switch ( data[y+uInt(yoffset)].brackets )
{
case fc::NoBrackets:
break;
case fc::SquareBrackets:
print (']');
break;
case fc::Parenthesis:
print (')');
break;
case fc::CurlyBrackets:
print ('}');
break;
case fc::AngleBrackets:
print ('>');
break;
}
i++;
}
if ( isMonochron() && isCurrentLine )
{
print ('<');
i++;
}
for (; b+i < uInt(width-nf_offset-3); i++)
print (' ');
}
else // line has no brackets
{
const wchar_t* element_str;
uInt i, len;
element = data[y+uInt(yoffset)].getText()
.mid ( uInt(1+xoffset)
, uInt(width-nf_offset-4) );
element_str = element.wc_str();
len = element.getLength();
if ( serach_mark )
setColor ( wc.current_inc_search_element_fg
, wc.current_element_focus_bg );
for (i=0; i < len; i++)
{
if ( serach_mark && i == inc_len )
setColor ( wc.current_element_focus_fg
, wc.current_element_focus_bg );
print (element_str[i]);
}
if ( isMonochron() && isCurrentLine )
{
print ('<');
i++;
}
for (; i < uInt(width-nf_offset-3); i++)
print (' ');
}
}
if ( isMonochron() ) // unset for the last element
setReverse(false);
unsetBold();
setUpdateVTerm(true);
updateTerminal();
flush_out();
if ( hasFocus() )
setCursor();
last_yoffset = yoffset;
last_current = current;
}
//----------------------------------------------------------------------
void FListBox::processClick()
{
emitCallback("clicked");
}
//----------------------------------------------------------------------
void FListBox::processSelect()
{
emitCallback("row-selected");
}
//----------------------------------------------------------------------
void FListBox::processChanged()
{
emitCallback("row-changed");
}
// protected methods of FListBox
//----------------------------------------------------------------------
void FListBox::adjustYOffset()
{
int element_count = int(count());
if ( yoffset > element_count - height + 2 )
yoffset = element_count - height + 2;
if ( yoffset < 0 )
yoffset = 0;
if ( current < yoffset )
current = yoffset;
if ( current >= yoffset + height - 1 )
yoffset = current - height + 2;
}
//----------------------------------------------------------------------
void FListBox::adjustSize()
{
int element_count;
adjustYOffset();
FWidget::adjustSize();
element_count = int(count());
VBar->setMaximum(element_count - height + 2);
VBar->setPageSize(element_count, height - 2);
VBar->setX(width);
VBar->setHeight (height-2, false);
VBar->resize();
HBar->setMaximum(maxLineWidth - width + nf_offset + 4);
HBar->setPageSize(maxLineWidth, width - nf_offset - 4);
HBar->setY(height);
HBar->setWidth (width-2, false);
HBar->resize();
if ( element_count < height - 1 )
VBar->hide();
else
VBar->setVisible();
if ( maxLineWidth < width - nf_offset - 3 )
HBar->hide();
else
HBar->setVisible();
}
// public methods of FListBox
//----------------------------------------------------------------------
void FListBox::setCurrentItem(int index)
{
int element_count;
if ( index == current )
return;
element_count = int(count());
if ( index > element_count )
current = element_count;
else if ( index < 1 )
current = 1;
else
current = index;
xoffset = 0;
yoffset = 0;
adjustSize();
VBar->setValue(yoffset);
if ( isVisible() )
redraw();
}
//----------------------------------------------------------------------
void FListBox::hide()
{
int fg, bg, n, size;
char* blank;
FWidget::hide();
fg = parentWidget()->getForegroundColor();
bg = parentWidget()->getBackgroundColor();
setColor (fg, bg);
n = isNewFont() ? 1 : 0;
size = width + n;
blank = new char[size+1];
memset(blank, ' ', uLong(size));
blank[size] = '\0';
for (int y=0; y < height; y++)
{
gotoxy (xpos+xmin-1, ypos+ymin-1+y);
print (blank);
}
delete[] blank;
}
//----------------------------------------------------------------------
void FListBox::showInsideBrackets ( int index
, fc::brackets_type b )
{
data[uInt(index-1)].brackets = b;
if ( b != fc::NoBrackets )
{
int len = int(data[uInt(index-1)].getText().getLength() + 2);
if ( len > maxLineWidth )
{
maxLineWidth = len;
if ( len >= width - nf_offset - 3 )
{
HBar->setMaximum(maxLineWidth - width + nf_offset + 4);
HBar->setPageSize(maxLineWidth, width - nf_offset - 4);
HBar->setValue (xoffset);
if ( ! HBar->isVisible() )
HBar->setVisible();
}
}
}
}
//----------------------------------------------------------------------
void FListBox::setGeometry (int x, int y, int w, int h, bool adjust)
{
FWidget::setGeometry(x, y, w, h, adjust);
if ( isNewFont() )
{
VBar->setGeometry(width, 2, 2, height-2);
HBar->setGeometry(1, height, width-2, 1);
}
else
{
VBar->setGeometry(width, 2, 1, height-2);
HBar->setGeometry(2, height, width-2, 1);
}
}
//----------------------------------------------------------------------
bool FListBox::setEnable (bool on)
{
FWidget::setEnable(on);
if ( on )
flags |= ACTIVE;
else
flags &= ~ACTIVE;
return on;
}
//----------------------------------------------------------------------
bool FListBox::setFocus (bool on)
{
FWidget::setFocus(on);
if ( on )
{
flags |= FOCUS;
if ( statusBar() )
{
FString msg = getStatusbarMessage();
FString curMsg = statusBar()->getMessage();
if ( curMsg != msg )
statusBar()->setMessage(msg);
}
}
else
{
flags &= ~FOCUS;
if ( statusBar() )
statusBar()->clearMessage();
}
return on;
}
//----------------------------------------------------------------------
bool FListBox::setShadow (bool on)
{
if ( on )
flags |= SHADOW;
else
flags &= ~SHADOW;
return on;
}
//----------------------------------------------------------------------
void FListBox::onKeyPress (FKeyEvent* ev)
{
int element_count = int(count());
int current_before = current;
int xoffset_before = xoffset;
int yoffset_before = yoffset;
int key = ev->key();
switch ( key )
{
case fc::Fkey_return:
case fc::Fkey_enter:
processClick();
inc_search.clear();
ev->accept();
break;
case fc::Fkey_up:
current--;
if ( current < 1 )
current=1;
if ( current <= yoffset )
yoffset--;
inc_search.clear();
ev->accept();
break;
case fc::Fkey_down:
current++;
if ( current > element_count )
current = element_count;
if ( current - yoffset >= height - 1 )
yoffset++;
inc_search.clear();
ev->accept();
break;
case fc::Fkey_left:
xoffset--;
if ( xoffset < 0 )
xoffset = 0;
inc_search.clear();
ev->accept();
break;
case fc::Fkey_right:
xoffset++;
if ( xoffset > maxLineWidth - width + nf_offset + 4 )
xoffset = maxLineWidth - width + nf_offset + 4;
if ( xoffset < 0 )
xoffset = 0;
inc_search.clear();
ev->accept();
break;
case fc::Fkey_ppage:
current -= height-3;
if ( current < 1 )
current=1;
if ( current <= yoffset )
{
yoffset -= height-3;
if ( yoffset < 0 )
yoffset=0;
}
inc_search.clear();
ev->accept();
break;
case fc::Fkey_npage:
current += height-3;
if ( current > element_count )
current = element_count;
if ( current - yoffset >= height - 1 )
{
yoffset += height-3;
if ( yoffset > element_count - height + 2 )
yoffset = element_count - height + 2;
}
inc_search.clear();
ev->accept();
break;
case fc::Fkey_home:
current = 1;
yoffset = 0;
inc_search.clear();
ev->accept();
break;
case fc::Fkey_end:
current = element_count;
if ( current >= height - 1 )
yoffset = element_count - height + 2;
inc_search.clear();
ev->accept();
break;
case fc::Fkey_ic: // insert key
if ( isMultiSelection() )
{
if ( isSelected(current) )
unselectItem(current);
else
selectItem(current);
processSelect();
current++;
if ( current > element_count )
current = element_count;
if ( current-yoffset >= height - 1 )
yoffset++;
ev->accept();
}
inc_search.clear();
break;
case fc::Fkey_space:
{
uInt inc_len = inc_search.getLength();
if ( inc_len > 0 )
{
inc_search += L' ';
bool inc_found = false;
uInt end = count();
for (uInt i=0; i < end; i++)
{
if ( ! inc_found
&& inc_search.toLower()
== data[i].getText().left(inc_len+1).toLower() )
{
setCurrentItem(int(i+1));
inc_found = true;
break;
}
}
if ( ! inc_found )
{
inc_search.remove(inc_len, 1);
ev->ignore();
}
else
ev->accept();
}
else if ( isMultiSelection() )
{
if ( isSelected(current) )
unselectItem(current);
else
selectItem(current);
processSelect();
inc_search.clear();
ev->accept();
}
}
break;
case fc::Fkey_erase:
case fc::Fkey_backspace:
{
uInt inc_len = inc_search.getLength();
if ( inc_len > 0 )
{
inc_search.remove(inc_len-1, 1);
if ( inc_len > 1 )
{
uInt end = count();
for (uInt i=0; i < end; i++)
{
if ( inc_search.toLower()
== data[i].getText().left(inc_len-1).toLower() )
{
setCurrentItem(int(i+1));
break;
}
}
}
ev->accept();
}
else
ev->ignore();
}
break;
case fc::Fkey_escape:
case fc::Fkey_escape_mintty:
if ( inc_search.getLength() > 0 )
{
inc_search.clear();
ev->accept();
}
break;
default:
if ( key > 0x20 && key <= 0x10fff )
{
// incremental search
if ( inc_search.getLength() == 0 )
inc_search = wchar_t(key);
else
inc_search += wchar_t(key);
uInt inc_len = inc_search.getLength();
bool inc_found = false;
uInt end = count();
for (uInt i=0; i < end; i++)
{
if ( ! inc_found
&& inc_search.toLower()
== data[i].getText().left(inc_len).toLower() )
{
setCurrentItem(int(i+1));
inc_found = true;
break;
}
}
if ( ! inc_found )
{
inc_search.remove(inc_len-1, 1);
if ( inc_len == 1 )
ev->ignore();
else
ev->accept();
}
else
ev->accept();
}
else
ev->ignore();
}
if ( current_before != current )
{
processChanged();
if ( ! isMultiSelection() )
processSelect();
}
if ( ev->isAccepted() )
{
if ( isVisible() )
drawList();
VBar->setValue (yoffset);
if ( VBar->isVisible() && yoffset_before != yoffset )
VBar->drawBar();
HBar->setValue (xoffset);
if ( HBar->isVisible() && xoffset_before != xoffset )
HBar->drawBar();
updateTerminal();
flush_out();
}
}
//----------------------------------------------------------------------
void FListBox::onMouseDown (FMouseEvent* ev)
{
int yoffset_before, mouse_x, mouse_y;
if ( ev->getButton() != LeftButton
&& ev->getButton() != RightButton )
{
return;
}
if ( ev->getButton() == RightButton && ! isMultiSelection() )
return;
if ( ! hasFocus() )
{
FWidget* focused_widget = getFocusWidget();
FFocusEvent out (FocusOut_Event);
FApplication::queueEvent(focused_widget, &out);
setFocus();
if ( focused_widget )
focused_widget->redraw();
if ( statusBar() )
statusBar()->drawMessage();
}
yoffset_before = yoffset;
mouse_x = ev->getX();
mouse_y = ev->getY();
if ( mouse_x > 1 && mouse_x < width
&& mouse_y > 1 && mouse_y < height )
{
current = yoffset + mouse_y - 1;
if ( current > int(count()) )
current = int(count());
inc_search.clear();
if ( ev->getButton() == RightButton )
{
if ( isMultiSelection() )
{
if ( isSelected(current) )
{
mouseSelect = false;
unselectItem(current);
}
else
{
mouseSelect = true;
selectItem(current);
}
processSelect();
secect_from_item = current;
}
}
if ( isVisible() )
drawList();
VBar->setValue (yoffset);
if ( VBar->isVisible() && yoffset_before != yoffset )
VBar->drawBar();
updateTerminal();
flush_out();
}
}
//----------------------------------------------------------------------
void FListBox::onMouseUp (FMouseEvent* ev)
{
if ( dragScroll != FListBox::noScroll )
{
delAllTimer();
dragScroll = FListBox::noScroll;
scrollDistance = 1;
scrollTimer = false;
}
if ( ev->getButton() == LeftButton )
{
int mouse_x = ev->getX();
int mouse_y = ev->getY();
if ( mouse_x > 1 && mouse_x < width
&& mouse_y > 1 && mouse_y < height )
{
processChanged();
if ( ! isMultiSelection() )
processSelect();
}
}
}
//----------------------------------------------------------------------
void FListBox::onMouseMove (FMouseEvent* ev)
{
int current_before, yoffset_before, mouse_x, mouse_y;
if ( ev->getButton() != LeftButton
&& ev->getButton() != RightButton )
{
return;
}
if ( ev->getButton() == RightButton && ! isMultiSelection() )
return;
current_before = current;
yoffset_before = yoffset;
mouse_x = ev->getX();
mouse_y = ev->getY();
if ( mouse_x > 1 && mouse_x < width
&& mouse_y > 1 && mouse_y < height )
{
current = yoffset + mouse_y - 1;
if ( current > int(count()) )
current = int(count());
inc_search.clear();
// handle multiple selections
if ( ev->getButton() == RightButton
&& isMultiSelection()
&& current_before != current )
{
int from, to;
if ( secect_from_item > current )
{
from = current;
to = secect_from_item - 1;
}
else
{
from = secect_from_item + 1;
to = current;
}
for (int i=from; i <= to; i++)
{
if ( mouseSelect )
{
selectItem(i);
processSelect();
}
else
{
unselectItem(i);
processSelect();
}
}
secect_from_item = current;
}
if ( isVisible() )
drawList();
VBar->setValue (yoffset);
if ( VBar->isVisible() && yoffset_before != yoffset )
VBar->drawBar();
updateTerminal();
flush_out();
}
// auto-scrolling when dragging mouse outside the widget
if ( mouse_y < 2 )
{
// drag up
if ( dragScroll != FListBox::noScroll && scrollDistance < height-2 )
scrollDistance++;
if ( ! scrollTimer && current > 1 )
{
scrollTimer = true;
addTimer(scrollRepeat);
if ( ev->getButton() == RightButton )
dragScroll = FListBox::scrollUpSelect;
else
dragScroll = FListBox::scrollUp;
}
if ( current == 1 )
{
delAllTimer();
dragScroll = FListBox::noScroll;
}
}
else if ( mouse_y >= height )
{
// drag down
if ( dragScroll != FListBox::noScroll && scrollDistance < height-2 )
scrollDistance++;
if ( ! scrollTimer && current < int(count()) )
{
scrollTimer = true;
addTimer(scrollRepeat);
if ( ev->getButton() == RightButton )
dragScroll = FListBox::scrollDownSelect;
else
dragScroll = FListBox::scrollDown;
}
if ( current == int(count()) )
{
delAllTimer();
dragScroll = FListBox::noScroll;
}
}
else
{
// no dragging
delAllTimer();
scrollTimer = false;
scrollDistance = 1;
dragScroll = FListBox::noScroll;
}
}
//----------------------------------------------------------------------
void FListBox::onMouseDoubleClick (FMouseEvent* ev)
{
int mouse_x, mouse_y;
if ( ev->getButton() != LeftButton )
return;
mouse_x = ev->getX();
mouse_y = ev->getY();
if ( mouse_x > 1 && mouse_x < width
&& mouse_y > 1 && mouse_y < height )
{
if ( yoffset + mouse_y - 1 > int(count()) )
return;
processClick();
}
}
//----------------------------------------------------------------------
void FListBox::onTimer (FTimerEvent*)
{
int element_count = int(count());
int current_before = current;
int yoffset_before = yoffset;
switch ( dragScroll )
{
case FListBox::noScroll:
return;
case FListBox::scrollUp:
case FListBox::scrollUpSelect:
if ( current_before == 1)
{
dragScroll = FListBox::noScroll;
return;
}
current -= scrollDistance;
if ( current < 1 )
current=1;
if ( current <= yoffset )
yoffset -= scrollDistance;
if ( yoffset < 0 )
yoffset=0;
break;
case FListBox::scrollDown:
case FListBox::scrollDownSelect:
if ( current_before == element_count )
{
dragScroll = FListBox::noScroll;
return;
}
current += scrollDistance;
if ( current > element_count )
current = element_count;
if ( current - yoffset >= height - 1 )
yoffset += scrollDistance;
if ( yoffset > element_count - height + 2 )
yoffset = element_count - height + 2;
default:
break;
}
// handle multiple selections
if ( dragScroll == FListBox::scrollUpSelect
|| dragScroll == FListBox::scrollDownSelect )
{
if ( isMultiSelection() && current_before != current )
{
int from, to;
if ( secect_from_item > current )
{
from = current;
to = secect_from_item - 1;
}
else
{
from = secect_from_item + 1;
to = current;
}
for (int i=from; i <= to; i++)
{
if ( mouseSelect )
{
selectItem(i);
processSelect();
}
else
{
unselectItem(i);
processSelect();
}
}
secect_from_item = current;
}
}
if ( isVisible() )
drawList();
VBar->setValue (yoffset);
if ( VBar->isVisible() && yoffset_before != yoffset )
VBar->drawBar();
updateTerminal();
flush_out();
}
//----------------------------------------------------------------------
void FListBox::onWheel (FWheelEvent* ev)
{
int element_count, current_before, yoffset_before, yoffset_end, wheel;
element_count = int(count());
current_before = current;
yoffset_before = yoffset;
yoffset_end = element_count - height + 2;
if ( yoffset_end < 0 )
yoffset_end = 0;
wheel = ev->getWheel();
if ( dragScroll != FListBox::noScroll )
{
delAllTimer();
scrollTimer = false;
scrollDistance = 1;
dragScroll = FListBox::noScroll;
}
switch ( wheel )
{
case WheelUp:
if ( yoffset == 0 )
break;
yoffset -= 4;
if ( yoffset < 0 )
{
current -= 4+yoffset;
yoffset=0;
}
else
current -= 4;
if ( current < 1 )
current=1;
inc_search.clear();
break;
case WheelDown:
if ( yoffset == yoffset_end )
break;
yoffset += 4;
if ( yoffset > yoffset_end )
{
current += 4 - (yoffset - yoffset_end);
yoffset = yoffset_end;
}
else
current += 4;
if ( current > element_count )
current = element_count;
inc_search.clear();
break;
default:
break;
}
if ( current_before != current )
{
processChanged();
if ( ! isMultiSelection() )
processSelect();
}
if ( isVisible() )
drawList();
VBar->setValue (yoffset);
if ( VBar->isVisible() && yoffset_before != yoffset )
VBar->drawBar();
updateTerminal();
flush_out();
}
//----------------------------------------------------------------------
void FListBox::onFocusIn (FFocusEvent*)
{
if ( statusBar() )
statusBar()->drawMessage();
inc_search.clear();
}
//----------------------------------------------------------------------
void FListBox::onFocusOut (FFocusEvent*)
{
if ( statusBar() )
{
statusBar()->clearMessage();
statusBar()->drawMessage();
}
delAllTimer();
inc_search.clear();
}
//----------------------------------------------------------------------
void FListBox::cb_VBarChange (FWidget*, void*)
{
int distance = 1;
int element_count = int(count());
int yoffset_before = yoffset;
int scrollType = VBar->getScrollType();
switch ( scrollType )
{
case FScrollbar::scrollPageBackward:
distance = height-2;
// fall through
case FScrollbar::scrollStepBackward:
current -= distance;
if ( current < 1 )
current=1;
if ( current <= yoffset )
yoffset -= distance;
if ( yoffset < 0 )
yoffset = 0;
break;
case FScrollbar::scrollPageForward:
distance = height-2;
// fall through
case FScrollbar::scrollStepForward:
current += distance;
if ( current > element_count )
current = element_count;
if ( current - yoffset >= height - 1 )
yoffset += distance;
if ( yoffset > element_count - height + 2 )
yoffset = element_count - height + 2;
break;
case FScrollbar::scrollJump:
{
int val = VBar->getValue();
if ( yoffset == val )
break;
int c = current - yoffset;
yoffset = val;
if ( yoffset > element_count - height + 2 )
yoffset = element_count - height + 2;
if ( yoffset < 0 )
yoffset = 0;
current = yoffset + c;
if ( current < yoffset )
current = yoffset;
if ( current > element_count )
current = element_count;
break;
}
case FScrollbar::scrollWheelUp:
{
FWheelEvent wheel_ev (MouseWheel_Event, FPoint(2,2), WheelUp);
onWheel(&wheel_ev);
}
break;
case FScrollbar::scrollWheelDown:
{
FWheelEvent wheel_ev (MouseWheel_Event, FPoint(2,2), WheelDown);
onWheel(&wheel_ev);
}
break;
default:
break;
}
if ( isVisible() )
drawList();
if ( scrollType >= FScrollbar::scrollStepBackward
&& scrollType <= FScrollbar::scrollPageForward )
{
VBar->setValue (yoffset);
if ( VBar->isVisible() && yoffset_before != yoffset )
VBar->drawBar();
updateTerminal();
flush_out();
}
}
//----------------------------------------------------------------------
void FListBox::cb_HBarChange (FWidget*, void*)
{
int distance = 1;
int xoffset_before = xoffset;
int xoffset_end = maxLineWidth - width + nf_offset + 4;
int scrollType = HBar->getScrollType();
switch ( scrollType )
{
case FScrollbar::scrollPageBackward:
distance = width - nf_offset - 4;
// fall through
case FScrollbar::scrollStepBackward:
xoffset -= distance;
if ( xoffset < 0 )
xoffset = 0;
break;
case FScrollbar::scrollPageForward:
distance = width - nf_offset - 4;
// fall through
case FScrollbar::scrollStepForward:
xoffset += distance;
if ( xoffset > maxLineWidth - width + nf_offset + 4 )
xoffset = maxLineWidth - width + nf_offset + 4;
if ( xoffset < 0 )
xoffset = 0;
break;
case FScrollbar::scrollJump:
{
int val = HBar->getValue();
if ( xoffset == val )
break;
xoffset = val;
if ( xoffset > maxLineWidth - width + nf_offset + 4 )
xoffset = maxLineWidth - width + nf_offset + 4;
if ( xoffset < 0 )
xoffset = 0;
break;
}
case FScrollbar::scrollWheelUp:
if ( xoffset == 0 )
break;
xoffset -= 4;
if ( xoffset < 0 )
xoffset=0;
break;
case FScrollbar::scrollWheelDown:
if ( xoffset == xoffset_end )
break;
xoffset += 4;
if ( xoffset > xoffset_end )
xoffset = xoffset_end;
break;
default:
break;
}
if ( isVisible() )
{
drawList();
updateTerminal();
flush_out();
}
if ( scrollType >= FScrollbar::scrollStepBackward
&& scrollType <= FScrollbar::scrollWheelDown )
{
HBar->setValue (xoffset);
if ( HBar->isVisible() && xoffset_before != xoffset )
HBar->drawBar();
updateTerminal();
flush_out();
}
}
//----------------------------------------------------------------------
void FListBox::insert ( FString item
, fc::brackets_type b
, bool s )
{
int len, element_count;
len = int(item.getLength());
if ( b )
len += 2;
if ( len > maxLineWidth )
{
maxLineWidth = len;
if ( len >= width - nf_offset - 3 )
{
HBar->setMaximum(maxLineWidth - width + nf_offset + 4);
HBar->setPageSize(maxLineWidth, width - nf_offset - 4);
HBar->calculateSliderValues();
if ( ! HBar->isVisible() )
HBar->setVisible();
}
}
FListBoxItem listItem (item);
listItem.brackets = b;
listItem.selected = s;
data.push_back (listItem);
element_count = int(count());
VBar->setMaximum(element_count - height + 2);
VBar->setPageSize(element_count, height - 2);
VBar->calculateSliderValues();
if ( ! VBar->isVisible() && element_count >= height - 1 )
VBar->setVisible();
}
//----------------------------------------------------------------------
void FListBox::insert ( long item
, fc::brackets_type b
, bool s )
{
insert (FString().setNumber(item), b, s);
}
//----------------------------------------------------------------------
void FListBox::remove (int item)
{
int element_count;
if ( int(count()) < item )
return;
data.erase (data.begin() + item - 1);
element_count = int(count());
maxLineWidth = 0;
for (int i=0; i < element_count; i++)
{
int len = int(data[uInt(i)].getText().getLength());
if ( len > maxLineWidth )
maxLineWidth = len;
}
HBar->setMaximum(maxLineWidth - width + nf_offset + 4);
HBar->setPageSize(maxLineWidth, width - nf_offset - 4);
if ( HBar->isVisible() && maxLineWidth < width - nf_offset - 3 )
HBar->hide();
VBar->setMaximum(element_count - height + 2);
VBar->setPageSize(element_count, height - 2);
if ( VBar->isVisible() && element_count < height - 1 )
VBar->hide();
if ( current >= item && current > 1 )
current--;
if ( current > element_count )
current = element_count;
if ( yoffset > element_count - height + 2 )
yoffset = element_count - height + 2;
if ( yoffset < 0 )
yoffset = 0;
}
//----------------------------------------------------------------------
void FListBox::clear()
{
int size;
char* blank;
data.clear();
current = 0;
xoffset = 0;
yoffset = 0;
maxLineWidth = 0;
last_current = -1;
last_yoffset = -1;
VBar->setMinimum(0);
VBar->setValue(0);
VBar->hide();
HBar->setMinimum(0);
HBar->setValue(0);
HBar->hide();
// clear list from screen
setColor (wc.list_fg, wc.list_bg);
size = width - 2;
blank = new char[size+1];
memset(blank, ' ', uLong(size));
blank[size] = '\0';
for (int y=0; y < height-2; y++)
{
gotoxy (xpos+xmin, ypos+ymin+y);
print (blank);
}
delete[] blank;
}
//----------------------------------------------------------------------
void FListBox::setText (FString txt)
{
text = txt;
}