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#include <lib/gui/einput.h>
#include <lib/gdi/font.h>
#include <lib/actions/action.h>
#include <linux/input.h>
eInput::eInput(eWidget *parent): eLabel(parent)
{
/* default to center alignment */
m_valign = alignCenter;
m_halign = alignCenter;
ePtr<eActionMap> ptr;
eActionMap::getInstance(ptr);
ptr->bindAction("InputActions", 0, 0, this);
// bind all keys
ptr->bindAction("", 0, 1, this);
}
eInput::~eInput()
{
ePtr<eActionMap> ptr;
eActionMap::getInstance(ptr);
ptr->unbindAction(this, 0);
ptr->unbindAction(this, 1);
}
void eInput::setContent(eInputContent *content)
{
if (m_content)
m_content->setInput(0);
m_content = content;
if (m_content)
m_content->setInput(this);
}
int eInput::event(int event, void *data, void *data2)
{
switch (event)
{
case evtPaint:
{
gPainter &painter = *(gPainter*)data2;
ePtr<eWindowStyle> style;
getStyle(style);
eWidget::event(event, data, data2);
ePtr<eTextPara> para = new eTextPara(eRect(0, 0, size().width(), size().height()));
std::string text;
int cursor = -1;
if (m_content)
m_content->getDisplay(text, cursor);
eDebug("cursor is %d", cursor);
para->setFont(m_font);
para->renderString(text, 0);
int glyphs = para->size();
eRect bbox;
if (cursor < glyphs)
{
bbox = para->getGlyphBBox(cursor);
bbox = eRect(bbox.left()-1, 0, 2, size().height());
} else
{
bbox = para->getGlyphBBox(cursor - 1);
bbox = eRect(bbox.right(), 0, 2, size().height());
}
painter.fill(bbox);
painter.renderPara(para, ePoint(0, 0));
return 0;
}
case evtAction:
if (isVisible())
{
switch((int)data2)
{
case moveLeft:
m_content->moveCursor(eInputContent::dirLeft);
break;
case moveRight:
m_content->moveCursor(eInputContent::dirRight);
break;
case moveHome:
m_content->moveCursor(eInputContent::dirHome);
break;
case moveEnd:
m_content->moveCursor(eInputContent::dirEnd);
break;
case deleteForward:
m_content->deleteChar(eInputContent::deleteForward);
break;
case deleteBackward:
m_content->deleteChar(eInputContent::deleteBackward);
break;
}
return 1;
}
return 0;
case evtKey:
{
int key = (int)data;
int flags = (int)data2;
if (m_content && !(flags & 1))
m_content->haveKey(key);
break;
}
default:
break;
}
return eLabel::event(event, data, data2);
}
int eInput::getNumber()
{
return atoi(m_text.c_str());
}
DEFINE_REF(eInputContentNumber);
void eInputContent::setInput(eInput *widget)
{
m_input = widget;
}
eInputContentNumber::eInputContentNumber(int cur, int min, int max)
{
m_min = min;
m_max = max;
m_value = cur;
m_cursor = 0;
m_input = 0;
recalcLen();
}
void eInputContentNumber::getDisplay(std::string &res, int &cursor)
{
// TODO
char r[128];
sprintf(r, "%d", m_value);
res = r;
cursor = m_cursor;
}
void eInputContentNumber::moveCursor(int dir)
{
eDebug("move cursor..");
int old_cursor = m_cursor;
switch (dir)
{
case dirLeft:
--m_cursor;
break;
case dirRight:
++m_cursor;
break;
case dirHome:
m_cursor = 0;
break;
case dirEnd:
m_cursor = m_len;
break;
}
if (m_cursor < 0)
m_cursor = 0;
if (m_cursor > m_len)
m_cursor = m_len;
if (m_cursor != old_cursor)
if (m_input)
m_input->invalidate();
}
int eInputContentNumber::haveKey(int code)
{
int have_digit = -1;
#define ASCII(x) (x | 0x8000)
#define DIGIT(x) case KEY_##x: case KEY_KP##x: case ASCII(x|0x30): have_digit=x; break;
switch (code)
{
DIGIT(0);
DIGIT(1);
DIGIT(2);
DIGIT(3);
DIGIT(4);
DIGIT(5);
DIGIT(6);
DIGIT(7);
DIGIT(8);
DIGIT(9);
}
if (have_digit != -1)
{
insertDigit(m_cursor, have_digit);
m_cursor++;
recalcLen();
// can happen when 0 -> x
if (m_cursor > m_len)
m_cursor = m_len;
if (m_input)
m_input->invalidate();
}
return 0;
}
void eInputContentNumber::deleteChar(int dir)
{
if (dir == deleteForward)
{
eDebug("forward");
if (m_cursor != m_len)
++m_cursor;
else
return;
}
/* backward delete at begin */
if (!m_cursor)
return;
insertDigit(m_cursor, -1);
if (m_len > 1)
m_cursor--;
recalcLen();
if (m_input)
m_input->invalidate();
}
int eInputContentNumber::isValid()
{
return m_value >= m_min && m_value <= m_max;
}
void eInputContentNumber::recalcLen()
{
int v = m_value;
m_len = 0;
while (v)
{
++m_len;
v /= 10;
}
if (!m_len) /* zero */
m_len = 1;
}
void eInputContentNumber::insertDigit(int pos, int dig)
{
/* get stuff left from cursor */
int exp = 1;
int i;
for (i = 0; i < (m_len - pos); ++i)
exp *= 10;
/* now it's 1...max */
int left = m_value / exp;
int right = m_value % exp;
if (dig >= 0)
{
left *= 10;
left += dig;
} else if (dig == -1) /* delete */
{
left /= 10;
}
left *= exp;
left += right;
m_value = left;
}
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