From ddc3964ed95d01e72229dc9af968a327cd84e56c Mon Sep 17 00:00:00 2001
From: Felix Domke <tmbinc@elitedvb.net>
Date: Fri, 1 Oct 2004 13:21:35 +0000
Subject:  - add python, missing gui  - remove console (needs to be rewritten
 anyway)  - eString -> std::string

---
 lib/gui/ewidget.cpp | 167 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 167 insertions(+)
 create mode 100644 lib/gui/ewidget.cpp

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

diff --git a/lib/gui/ewidget.cpp b/lib/gui/ewidget.cpp
new file mode 100644
index 00000000..89fbfe95
--- /dev/null
+++ b/lib/gui/ewidget.cpp
@@ -0,0 +1,167 @@
+#include <lib/gui/ewidget.h>
+#include <lib/gui/ewidgetdesktop.h>
+
+extern void dumpRegion(const gRegion &region);
+
+eWidget::eWidget(eWidget *parent): m_parent(parent)
+{
+	m_vis = 0;
+	m_desktop = 0;
+	
+	if (parent)
+		m_vis = wVisShow;
+	
+	if (parent)
+		parent->m_childs.push_back(this);
+}
+
+void eWidget::move(ePoint pos)
+{
+	m_position = pos;
+	
+	event(evtChangedPosition);
+}
+
+void eWidget::resize(eSize size)
+{
+	event(evtWillChangeSize, &size);
+	event(evtChangedSize);
+}
+
+void eWidget::invalidate(const gRegion &region)
+{
+	gRegion res = /* region & */ m_visible_with_childs;
+	if (res.empty())
+		return;
+	
+	eWidget *root = this;
+	ePoint abspos = position();
+	while (root && !root->m_desktop)
+	{
+		root = root->m_parent;
+		assert(root);
+		abspos += root->position();
+	}
+	
+	res.moveBy(abspos);
+//	eDebug("region to invalidate:");
+//	dumpRegion(res);
+	root->m_desktop->invalidate(res);
+}
+
+void eWidget::show()
+{
+	if (m_vis & wVisShow)
+		return;
+	
+	m_vis |=  wVisShow;
+
+		/* TODO: optimize here to only recalc what's required. possibly merge with hide. */
+	eWidget *root = this;
+	ePoint abspos = position();
+	while (root && !root->m_desktop)
+	{
+		root = root->m_parent;
+		assert(root);
+		abspos += root->position();
+	}
+
+	root->m_desktop->recalcClipRegions();
+
+	gRegion abs = m_visible_with_childs;
+	abs.moveBy(abspos);
+	root->m_desktop->invalidate(abs);
+}
+
+void eWidget::hide()
+{
+	m_vis &= ~wVisShow;
+
+		/* TODO: optimize here to only recalc what's required. possibly merge with show. */
+	eWidget *root = this;
+	ePoint abspos = position();
+	while (root && !root->m_desktop)
+	{
+		root = root->m_parent;
+		abspos += root->position();
+	}
+	assert(root->m_desktop);
+
+	gRegion abs = m_visible_with_childs;
+	abs.moveBy(abspos);
+
+	root->m_desktop->recalcClipRegions();
+	root->m_desktop->invalidate(abs);
+}
+
+void eWidget::destruct()
+{
+	if (m_parent)
+		m_parent->m_childs.remove(this);
+	delete this;
+}
+
+eWidget::~eWidget()
+{
+		/* destroy all childs */
+	ePtrList<eWidget>::iterator i(m_childs.begin());
+	while (i != m_childs.end())
+	{
+		delete *i;
+		i = m_childs.erase(i);
+	}
+}
+
+void eWidget::doPaint(gPainter &painter, const gRegion &r)
+{
+	if (m_visible_with_childs.empty())
+		return;
+	
+	gRegion region = r;
+			/* we were in parent's space, now we are in local space */
+	region.moveBy(-position());
+	
+	painter.moveOffset(position());
+		/* walk all childs */
+	for (ePtrList<eWidget>::iterator i(m_childs.begin()); i != m_childs.end(); ++i)
+		i->doPaint(painter, region);
+	
+		/* check if there's anything for us to paint */
+	region &= m_visible_region;
+	
+	painter.resetClip(region);
+	event(evtPaint, &region, &painter);
+	
+	painter.moveOffset(-position());
+}
+
+int eWidget::event(int event, void *data, void *data2)
+{
+	switch (event)
+	{
+	case evtPaint:
+	{
+		static int counter = 0x18;
+		gPainter &painter = *(gPainter*)data2;
+//		eDebug("eWidget::evtPaint %d", counter);
+//		dumpRegion(*(gRegion*)data);
+		painter.setBackgroundColor(gColor(++counter));
+		painter.clear();
+		break;
+	}
+	case evtKey:
+		break;
+	case evtWillChangeSize:
+		m_size = *static_cast<eSize*>(data);
+		break;
+	case evtChangedSize:
+	{
+		m_clip_region = gRegion(eRect(ePoint(0, 0),  m_size));
+		break;
+	}
+	default:
+		return -1;
+	}
+	return 0;
+}
+
-- 
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