From 7bc4a59528ab13f3062dc1520e76f9ecedd87400 Mon Sep 17 00:00:00 2001
From: Felix Domke <tmbinc@elitedvb.net>
Date: Sat, 14 May 2005 15:23:23 +0000
Subject:  - work on timers  - add eInput widget  - add python/Tools  - add
 flexible listbox content

---
 lib/gui/einput.cpp | 208 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 208 insertions(+)
 create mode 100644 lib/gui/einput.cpp

(limited to 'lib/gui/einput.cpp')

diff --git a/lib/gui/einput.cpp b/lib/gui/einput.cpp
new file mode 100644
index 00000000..b2c8ad14
--- /dev/null
+++ b/lib/gui/einput.cpp
@@ -0,0 +1,208 @@
+#include <lib/gui/einput.h>
+#include <lib/gdi/font.h>
+#include <lib/actions/action.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);
+}
+
+eInput::~eInput()
+{
+	ePtr<eActionMap> ptr;
+	eActionMap::getInstance(ptr);
+	ptr->unbindAction(this, 0);
+}
+
+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 deleteChar:
+				// not yet
+				break;
+			}
+			return 1;
+		}
+		return 0;
+	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)
+{
+	insertDigit(m_cursor, code);
+	recalcLen();
+	return 0;
+}
+
+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 - 1); ++i)
+		exp *= 10;
+	
+		/* now it's 1...max */
+	int left = m_value / exp;
+	int right = m_value % exp;
+	left *= 10;
+	left += dig;
+	left *= exp;
+	left += right;
+	m_value = left;
+}
-- 
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