axmol/cocos2dx/NdControls/NdCxListItem.cpp

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2011-05-31 14:04:14 +08:00
#include "NdCxListItem.h"
namespace NdCxControl
{
NdCxListItem::NdCxListItem(void)
: selected_(false)
, draw_top_line_(false)
, draw_bottom_line_(true)
, horizontal_margin_(10.f)
, vertical_margin_(10.f)
{
}
NdCxListItem::~NdCxListItem(void)
{
}
void NdCxListItem::updateColor(void)
{
const unsigned int l = sizeof(m_pSquareColors) / sizeof(m_pSquareColors[0]);
if (selected_)
{
ccColor3B color = sel_item_start_color_;
const unsigned int half = l / 2;
for (unsigned int i=0; i < l; ++i)
{
if (i >= half)
{
color = sel_item_end_color_;
}
if (i % 4 == 0)
m_pSquareColors[i] = color.r;
else if (i % 4 == 1)
m_pSquareColors[i] = color.g;
else if (i % 4 ==2)
m_pSquareColors[i] = color.b;
else
m_pSquareColors[i] = m_cOpacity;
}
}
else
{
for( unsigned int i=0; i < 4; i++ )
{
m_pSquareColors[i * 4] = m_tColor.r;
m_pSquareColors[i * 4 + 1] = m_tColor.g;
m_pSquareColors[i * 4 + 2] = m_tColor.b;
m_pSquareColors[i * 4 + 3] = m_cOpacity;
}
}
}
void NdCxListItem::draw(void)
{
updateColor();
CCSize size = getContentSize();
if (selected_)
{
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisable(GL_TEXTURE_2D);
glShadeModel(GL_SMOOTH);
glVertexPointer(2, GL_FLOAT, 0, m_pSquareVertices);
glColorPointer(4, GL_UNSIGNED_BYTE, 0, m_pSquareColors);
bool newBlend = false;
if( m_tBlendFunc.src != CC_BLEND_SRC || m_tBlendFunc.dst != CC_BLEND_DST ) {
newBlend = true;
glBlendFunc(m_tBlendFunc.src, m_tBlendFunc.dst);
}
else if( m_cOpacity != 255 ) {
newBlend = true;
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
if( newBlend )
glBlendFunc(CC_BLEND_SRC, CC_BLEND_DST);
// restore default GL state
glShadeModel(GL_FLAT);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnable(GL_TEXTURE_2D);
}
else
{
CCLayerColor::draw();
}
glDisable(GL_LINE_SMOOTH);
if (draw_top_line_)
{
glLineWidth(1.0f);
glColor4ub(line_color_.r, line_color_.g, line_color_.b, 0xFF);
ccDrawLine(CCPointMake(0, size.height-0.5f), CCPointMake(size.width, size.height-0.5f));
}
if (draw_bottom_line_)
{
glLineWidth(1.0f);
glColor4ub(line_color_.r, line_color_.g, line_color_.b, 0xFF);
ccDrawLine(CCPointMake(0, 0.5f), CCPointMake(size.width, 0.5f));
}
}
CCRect NdCxListItem::rect(void)
{
return CCRectMake( m_tPosition.x - m_tContentSize.width * m_tAnchorPoint.x,
m_tPosition.y - m_tContentSize.height * m_tAnchorPoint.y,
m_tContentSize.width, m_tContentSize.height);
}
void NdCxListItem::selected(void)
{
selected_ = true;
}
void NdCxListItem::unselected(void)
{
selected_ = false;
}
void NdCxListItem::setItemColor(const ccColor3B &color)
{
setColor(color);
}
void NdCxListItem::setMargin(CCSize margin)
{
horizontal_margin_ = margin.width;
vertical_margin_ = margin.height;
}
CCSize NdCxListItem::getMargin(void)
{
return CCSizeMake(horizontal_margin_, vertical_margin_);
}
void NdCxListItem::addChild(NdCxListItemChild *child, const LayoutParam &layout)
{
addChild(child, layout, 0);
}
void NdCxListItem::addChild(NdCxListItemChild *child, const LayoutParam &layout, int tag)
{
layout_info_.insert(std::make_pair(child, layout));
child->setIsRelativeAnchorPoint(false);
CCLayerColor::addChild(child, 0, tag);
child->release();
}
NdCxListItemChild *NdCxListItem::getChildByTag(int tag)
{
return (NdCxListItemChild *)CCLayerColor::getChildByTag(tag);
}
void NdCxListItem::requestLayout(void)
{
if (m_pChildren && m_pChildren->count() > 0)
{
CCPoint child_pos;
CCSize size = getContentSize();
CCPoint curr_pos;
CCPoint prev_pos;
float vertical_height = size.height;
bool height_changed = false;
for (int i = 0, l = m_pChildren->count(); i < l; ++i)
{
CCNode *it = (CCNode *)m_pChildren->objectAtIndex(i);
if (!(it))
{
break;
}
CCSize child_size = (*(it)).getContentSize();
child_size.width *= (*(it)).getScaleX();
child_size.height *= (*(it)).getScaleY();
std::map<CCNode *, LayoutParam>::iterator pos = layout_info_.find(it);
CCAssert(layout_info_.end() != pos, "!!");
LayoutParam *lp = &pos->second;
switch ((*lp).val_x.t)
{
case PARENT_CENTER:
child_pos.x = (size.width - child_size.width) / 2;
break;
case HORIZONTAL_LEFT:
child_pos.x = horizontal_margin_;
break;
case HORIZONTAL_RIGHT:
child_pos.x = size.width - child_size.width - horizontal_margin_;
break;
case ABS_WITH_PIXEL:
child_pos.x = (float)(*lp).val_x.val.pixel_val;
break;
case ABS_WITH_PERCENT:
child_pos.x = horizontal_margin_ + (*lp).val_x.val.percent_val * (size.width - 2*horizontal_margin_);
break;
case REF_PREV_X_INC:
{
child_pos.x = prev_pos.x + (*lp).padding;
break;
}
case REF_PREV_X_DEC:
{
child_pos.x = prev_pos.x - (*lp).padding;
break;
}
case REL_FLOW:
child_pos.x = curr_pos.x + (*lp).padding;
break;
}
if (!(*lp).wrap)
{
curr_pos.x = child_pos.x + child_size.width;
}
switch ((*lp).val_y.t)
{
case PARENT_CENTER:
{
if (child_size.height > vertical_height - 2*vertical_margin_)
{
vertical_height += child_size.height - (vertical_height - 2*vertical_margin_);
height_changed = true;
}
child_pos.y = (vertical_height - child_size.height)*0.5f;
break;
}
case VERTICAL_TOP:
{
if (child_size.height > vertical_height - 2*vertical_margin_)
{
vertical_height += child_size.height - (vertical_height - 2*vertical_margin_);
height_changed = true;
}
child_pos.y = vertical_height - (child_size.height + vertical_margin_);
break;
}
case VERTICAL_BOTTOM:
{
if (child_size.height > vertical_height - 2*vertical_margin_)
{
vertical_height += child_size.height - (vertical_height - 2*vertical_margin_);
height_changed = true;
}
child_pos.y = vertical_margin_;
break;
}
case ABS_WITH_PIXEL:
{
child_pos.y = (float)(*lp).val_y.val.pixel_val;
if (child_pos.y + child_size.height > vertical_height - vertical_margin_)
{
vertical_height = child_pos.y + child_size.height + vertical_margin_;
height_changed = true;
}
break;
}
case ABS_WITH_PERCENT:
{
child_pos.y = (*lp).val_y.val.percent_val * (vertical_height - 2*vertical_margin_);
if (child_pos.y + child_size.height > vertical_height - vertical_margin_)
{
vertical_height = child_pos.y + child_size.height + vertical_margin_;
height_changed = true;
}
break;
}
case REF_PREV_Y_INC:
{
child_pos.y = prev_pos.y + (*lp).padding;
if (child_pos.y + child_size.height > + vertical_height - vertical_margin_)
{
vertical_height = child_pos.y + child_size.height + vertical_margin_;
height_changed = true;
}
break;
}
case REF_PREV_Y_DEC:
{
child_pos.y = prev_pos.y - (child_size.height + (*lp).padding);
if (child_pos.y < vertical_margin_)
{
vertical_height += vertical_margin_-child_pos.y + vertical_margin_;
child_pos.y = vertical_margin_;
height_changed = true;
}
break;
}
case REL_FLOW:
{
child_pos.y = curr_pos.y + (*lp).padding;
if (child_pos.y + child_size.height > vertical_height - vertical_margin_)
{
vertical_height = curr_pos.y + child_size.height + vertical_margin_;
height_changed = true;
}
break;
}
curr_pos.y = child_pos.y + child_size.height;
}
prev_pos = child_pos;
(*it).setPosition(child_pos);
}
setContentSize(CCSizeMake(size.width, vertical_height));
if (height_changed)
{
requestLayout();
}
}
}
NdCxListItem *NdCxListItem::itemWithColor(const ccColor3B &color)
{
NdCxListItem *pRet = new NdCxListItem();
pRet->setOpacity(255);
pRet->setColor(color);
return pRet;
}
bool NdCxListItem::initWithWidthHeight(GLfloat width, GLfloat height)
{
ccColor3B color = getColor();
ccColor4B cl4b = { color.r, color.g, color.b, getOpacity() };
return CCLayerColor::initWithColorWidthHeight(cl4b, width, height);
}
void NdCxListItem::setLineColor(const ccColor3B &color)
{
line_color_ = color;
}
void NdCxListItem::setSelectedColor(const ccColor3B &start_color, const ccColor3B &end_color)
{
sel_item_start_color_ = start_color;
sel_item_end_color_ = end_color;
}
}