UIWidget* UIHelper::seekWidgetByRelativeName(UIWidget *root, const char *name)
{
if (!root)
{
return NULL;
}
ccArray* arrayRootChildren = root->getChildren()->data;
int length = arrayRootChildren->num;
for (int i=0;i<length;i++)
{
UIWidget* child = (UIWidget*)(arrayRootChildren->arr[i]);
RelativeLayoutParameter* layoutParameter = dynamic_cast<RelativeLayoutParameter*>(child->getLayoutParameter());
if (layoutParameter && strcmp(layoutParameter->getRelativeName(), name) == 0)
{
return child;
}
}
return NULL;
}
void UILayout::doLayout()
{
switch (m_eLayoutType)
{
case LAYOUT_ABSOLUTE:
break;
case LAYOUT_LINEAR_VERTICAL:
{
ccArray* layoutChildrenArray = getChildren()->data;
int length = layoutChildrenArray->num;
CCSize layoutSize = getSize();
float topBoundary = layoutSize.height;
for (int i=0; i<length; ++i)
{
UIWidget* child = dynamic_cast<UIWidget*>(layoutChildrenArray->arr[i]);
UILinearLayoutParameter* layoutParameter = dynamic_cast<UILinearLayoutParameter*>(child->getLayoutParameter(LAYOUT_PARAMETER_LINEAR));
if (layoutParameter)
{
UILinearGravity childGravity = layoutParameter->getGravity();
CCPoint ap = child->getAnchorPoint();
CCSize cs = child->getSize();
float finalPosX = ap.x * cs.width;
float finalPosY = topBoundary - ((1.0f-ap.y) * cs.height);
switch (childGravity)
{
case LINEAR_GRAVITY_NONE:
case LINEAR_GRAVITY_LEFT:
break;
case LINEAR_GRAVITY_RIGHT:
finalPosX = layoutSize.width - ((1.0f - ap.x) * cs.width);
break;
case LINEAR_GRAVITY_CENTER_HORIZONTAL:
finalPosX = layoutSize.width / 2.0f - cs.width * (0.5f-ap.x);
break;
default:
break;
}
UIMargin mg = layoutParameter->getMargin();
finalPosX += mg.left;
finalPosY -= mg.top;
child->setPosition(ccp(finalPosX, finalPosY));
topBoundary = child->getBottomInParent() - mg.bottom;
}
}
break;
}
case LAYOUT_LINEAR_HORIZONTAL:
{
ccArray* layoutChildrenArray = getChildren()->data;
int length = layoutChildrenArray->num;
CCSize layoutSize = getSize();
float leftBoundary = 0.0f;
for (int i=0; i<length; ++i)
{
UIWidget* child = dynamic_cast<UIWidget*>(layoutChildrenArray->arr[i]);
UILinearLayoutParameter* layoutParameter = dynamic_cast<UILinearLayoutParameter*>(child->getLayoutParameter(LAYOUT_PARAMETER_LINEAR));
if (layoutParameter)
{
UILinearGravity childGravity = layoutParameter->getGravity();
CCPoint ap = child->getAnchorPoint();
CCSize cs = child->getSize();
float finalPosX = leftBoundary + (ap.x * cs.width);
float finalPosY = layoutSize.height - (1.0f - ap.y) * cs.height;
switch (childGravity)
{
case LINEAR_GRAVITY_NONE:
case LINEAR_GRAVITY_TOP:
break;
case LINEAR_GRAVITY_BOTTOM:
finalPosY = ap.y * cs.height;
break;
case LINEAR_GRAVITY_CENTER_VERTICAL:
finalPosY = layoutSize.height / 2.0f - cs.height * (0.5f - ap.y);
break;
default:
break;
}
UIMargin mg = layoutParameter->getMargin();
finalPosX += mg.left;
finalPosY -= mg.top;
child->setPosition(ccp(finalPosX, finalPosY));
leftBoundary = child->getRightInParent() + mg.right;
}
}
break;
}
case LAYOUT_RELATIVE:
{
ccArray* layoutChildrenArray = getChildren()->data;
int length = layoutChildrenArray->num;
int unlayoutChildCount = length;
CCSize layoutSize = getSize();
for (int i=0; i<length; i++)
{
UIWidget* child = dynamic_cast<UIWidget*>(layoutChildrenArray->arr[i]);
UIRelativeLayoutParameter* layoutParameter = dynamic_cast<UIRelativeLayoutParameter*>(child->getLayoutParameter(LAYOUT_PARAMETER_RELATIVE));
layoutParameter->m_bPut = false;
}
while (unlayoutChildCount > 0)
{
for (int i=0; i<length; i++)
{
UIWidget* child = dynamic_cast<UIWidget*>(layoutChildrenArray->arr[i]);
UIRelativeLayoutParameter* layoutParameter = dynamic_cast<UIRelativeLayoutParameter*>(child->getLayoutParameter(LAYOUT_PARAMETER_RELATIVE));
if (layoutParameter)
{
if (layoutParameter->m_bPut)
{
continue;
}
CCPoint ap = child->getAnchorPoint();
CCSize cs = child->getSize();
UIRelativeAlign align = layoutParameter->getAlign();
const char* relativeName = layoutParameter->getRelativeToWidgetName();
UIWidget* relativeWidget = NULL;
UIRelativeLayoutParameter* relativeWidgetLP = NULL;
float finalPosX = 0.0f;
float finalPosY = 0.0f;
if (relativeName && strcmp(relativeName, ""))
{
relativeWidget = CCUIHELPER->seekWidgetByRelativeName(this, relativeName);
if (relativeWidget)
{
relativeWidgetLP = dynamic_cast<UIRelativeLayoutParameter*>(relativeWidget->getLayoutParameter(LAYOUT_PARAMETER_RELATIVE));
}
}
switch (align)
{
case RELATIVE_ALIGN_NONE:
case RELATIVE_ALIGN_PARENT_TOP_LEFT:
finalPosX = ap.x * cs.width;
finalPosY = layoutSize.height - ((1.0f - ap.y) * cs.height);
break;
case RELATIVE_ALIGN_PARENT_TOP_CENTER_HORIZONTAL:
finalPosX = layoutSize.width * 0.5f - cs.width * (0.5f - ap.x);
finalPosY = layoutSize.height - ((1.0f - ap.y) * cs.height);
break;
case RELATIVE_ALIGN_PARENT_TOP_RIGHT:
finalPosX = layoutSize.width - ((1.0f - ap.x) * cs.width);
finalPosY = layoutSize.height - ((1.0f - ap.y) * cs.height);
break;
case RELATIVE_ALIGN_PARENT_LEFT_CENTER_VERTICAL:
finalPosX = ap.x * cs.width;
finalPosY = layoutSize.height * 0.5f - cs.height * (0.5f - ap.y);
break;
case RELATIVE_CENTER_IN_PARENT:
finalPosX = layoutSize.width * 0.5f - cs.width * (0.5f - ap.x);
finalPosY = layoutSize.height * 0.5f - cs.height * (0.5f - ap.y);
break;
case RELATIVE_ALIGN_PARENT_RIGHT_CENTER_VERTICAL:
finalPosX = layoutSize.width - ((1.0f - ap.x) * cs.width);
finalPosY = layoutSize.height * 0.5f - cs.height * (0.5f - ap.y);
break;
case RELATIVE_ALIGN_PARENT_LEFT_BOTTOM:
finalPosX = ap.x * cs.width;
finalPosY = ap.y * cs.height;
break;
case RELATIVE_ALIGN_PARENT_BOTTOM_CENTER_HORIZONTAL:
finalPosX = layoutSize.width * 0.5f - cs.width * (0.5f - ap.x);
finalPosY = ap.y * cs.height;
break;
case RELATIVE_ALIGN_PARENT_RIGHT_BOTTOM:
finalPosX = layoutSize.width - ((1.0f - ap.x) * cs.width);
finalPosY = ap.y * cs.height;
break;
case RELATIVE_LOCATION_ABOVE_LEFTALIGN:
if (relativeWidget)
{
if (relativeWidgetLP && !relativeWidgetLP->m_bPut)
{
continue;
}
float locationBottom = relativeWidget->getTopInParent();
float locationLeft = relativeWidget->getLeftInParent();
finalPosY = locationBottom + ap.y * cs.height;
finalPosX = locationLeft + ap.x * cs.width;
}
break;
case RELATIVE_LOCATION_ABOVE_CENTER:
if (relativeWidget)
{
if (relativeWidgetLP && !relativeWidgetLP->m_bPut)
{
continue;
}
CCSize rbs = relativeWidget->getSize();
float locationBottom = relativeWidget->getTopInParent();
finalPosY = locationBottom + ap.y * cs.height;
finalPosX = relativeWidget->getLeftInParent() + rbs.width * 0.5f + ap.x * cs.width - cs.width * 0.5f;
}
break;
case RELATIVE_LOCATION_ABOVE_RIGHTALIGN:
if (relativeWidget)
{
if (relativeWidgetLP && !relativeWidgetLP->m_bPut)
{
continue;
}
float locationBottom = relativeWidget->getTopInParent();
float locationRight = relativeWidget->getRightInParent();
finalPosY = locationBottom + ap.y * cs.height;
finalPosX = locationRight - (1.0f - ap.x) * cs.width;
}
break;
case RELATIVE_LOCATION_LEFT_OF_TOPALIGN:
if (relativeWidget)
{
if (relativeWidgetLP && !relativeWidgetLP->m_bPut)
{
continue;
}
float locationTop = relativeWidget->getTopInParent();
float locationRight = relativeWidget->getLeftInParent();
finalPosY = locationTop - (1.0f - ap.y) * cs.height;
finalPosX = locationRight - (1.0f - ap.x) * cs.width;
}
break;
case RELATIVE_LOCATION_LEFT_OF_CENTER:
if (relativeWidget)
{
if (relativeWidgetLP && !relativeWidgetLP->m_bPut)
{
continue;
}
CCSize rbs = relativeWidget->getSize();
float locationRight = relativeWidget->getLeftInParent();
finalPosX = locationRight - (1.0f - ap.x) * cs.width;
finalPosY = relativeWidget->getBottomInParent() + rbs.height * 0.5f + ap.y * cs.height - cs.height * 0.5f;
}
break;
case RELATIVE_LOCATION_LEFT_OF_BOTTOMALIGN:
if (relativeWidget)
{
if (relativeWidgetLP && !relativeWidgetLP->m_bPut)
{
continue;
}
float locationBottom = relativeWidget->getBottomInParent();
float locationRight = relativeWidget->getLeftInParent();
finalPosY = locationBottom + ap.y * cs.height;
finalPosX = locationRight - (1.0f - ap.x) * cs.width;
}
break;
case RELATIVE_LOCATION_RIGHT_OF_TOPALIGN:
if (relativeWidget)
{
if (relativeWidgetLP && !relativeWidgetLP->m_bPut)
{
continue;
}
float locationTop = relativeWidget->getTopInParent();
float locationLeft = relativeWidget->getRightInParent();
finalPosY = locationTop - (1.0f - ap.y) * cs.height;
finalPosX = locationLeft + ap.x * cs.width;
}
break;
case RELATIVE_LOCATION_RIGHT_OF_CENTER:
if (relativeWidget)
{
if (relativeWidgetLP && !relativeWidgetLP->m_bPut)
{
continue;
}
CCSize rbs = relativeWidget->getSize();
float locationLeft = relativeWidget->getRightInParent();
finalPosX = locationLeft + ap.x * cs.width;
finalPosY = relativeWidget->getBottomInParent() + rbs.height * 0.5f + ap.y * cs.height - cs.height * 0.5f;
}
break;
case RELATIVE_LOCATION_RIGHT_OF_BOTTOMALIGN:
if (relativeWidget)
{
if (relativeWidgetLP && !relativeWidgetLP->m_bPut)
{
continue;
}
float locationBottom = relativeWidget->getBottomInParent();
float locationLeft = relativeWidget->getRightInParent();
finalPosY = locationBottom + ap.y * cs.height;
finalPosX = locationLeft + ap.x * cs.width;
}
break;
case RELATIVE_LOCATION_BELOW_LEFTALIGN:
if (relativeWidget)
{
if (relativeWidgetLP && !relativeWidgetLP->m_bPut)
{
continue;
}
float locationTop = relativeWidget->getBottomInParent();
float locationLeft = relativeWidget->getLeftInParent();
finalPosY = locationTop - (1.0f - ap.y) * cs.height;
finalPosX = locationLeft + ap.x * cs.width;
}
break;
case RELATIVE_LOCATION_BELOW_CENTER:
if (relativeWidget)
{
if (relativeWidgetLP && !relativeWidgetLP->m_bPut)
{
continue;
}
CCSize rbs = relativeWidget->getSize();
float locationTop = relativeWidget->getBottomInParent();
finalPosY = locationTop - (1.0f - ap.y) * cs.height;
finalPosX = relativeWidget->getLeftInParent() + rbs.width * 0.5f + ap.x * cs.width - cs.width * 0.5f;
}
break;
case RELATIVE_LOCATION_BELOW_RIGHTALIGN:
if (relativeWidget)
{
if (relativeWidgetLP && !relativeWidgetLP->m_bPut)
{
continue;
}
float locationTop = relativeWidget->getBottomInParent();
float locationRight = relativeWidget->getRightInParent();
finalPosY = locationTop - (1.0f - ap.y) * cs.height;
finalPosX = locationRight - (1.0f - ap.x) * cs.width;
}
break;
default:
break;
}
UIMargin relativeWidgetMargin;
UIMargin mg = layoutParameter->getMargin();
if (relativeWidget)
{
relativeWidgetMargin = relativeWidget->getLayoutParameter(LAYOUT_PARAMETER_RELATIVE)->getMargin();
}
//handle margin
switch (align)
{
case RELATIVE_ALIGN_NONE:
case RELATIVE_ALIGN_PARENT_TOP_LEFT:
finalPosX += mg.left;
finalPosY -= mg.top;
break;
case RELATIVE_ALIGN_PARENT_TOP_CENTER_HORIZONTAL:
finalPosY -= mg.top;
break;
case RELATIVE_ALIGN_PARENT_TOP_RIGHT:
finalPosX -= mg.right;
finalPosY -= mg.top;
break;
case RELATIVE_ALIGN_PARENT_LEFT_CENTER_VERTICAL:
finalPosX += mg.left;
break;
case RELATIVE_CENTER_IN_PARENT:
break;
case RELATIVE_ALIGN_PARENT_RIGHT_CENTER_VERTICAL:
finalPosX -= mg.right;
break;
case RELATIVE_ALIGN_PARENT_LEFT_BOTTOM:
finalPosX += mg.left;
finalPosY += mg.bottom;
break;
case RELATIVE_ALIGN_PARENT_BOTTOM_CENTER_HORIZONTAL:
finalPosY += mg.bottom;
break;
case RELATIVE_ALIGN_PARENT_RIGHT_BOTTOM:
finalPosX -= mg.right;
finalPosY += mg.bottom;
break;
case RELATIVE_LOCATION_ABOVE_LEFTALIGN:
case RELATIVE_LOCATION_ABOVE_CENTER:
case RELATIVE_LOCATION_ABOVE_RIGHTALIGN:
finalPosY += mg.bottom;
finalPosY += relativeWidgetMargin.top;
break;
case RELATIVE_LOCATION_LEFT_OF_TOPALIGN:
case RELATIVE_LOCATION_LEFT_OF_CENTER:
case RELATIVE_LOCATION_LEFT_OF_BOTTOMALIGN:
finalPosX -= mg.right;
finalPosX -= relativeWidgetMargin.left;
break;
case RELATIVE_LOCATION_RIGHT_OF_TOPALIGN:
case RELATIVE_LOCATION_RIGHT_OF_CENTER:
case RELATIVE_LOCATION_RIGHT_OF_BOTTOMALIGN:
finalPosX += mg.left;
finalPosX += relativeWidgetMargin.right;
break;
case RELATIVE_LOCATION_BELOW_LEFTALIGN:
case RELATIVE_LOCATION_BELOW_CENTER:
case RELATIVE_LOCATION_BELOW_RIGHTALIGN:
finalPosY -= mg.top;
finalPosY -= relativeWidgetMargin.bottom;
break;
default:
break;
}
child->setPosition(ccp(finalPosX, finalPosY));
layoutParameter->m_bPut = true;
unlayoutChildCount--;
}
}
}
break;
}
default:
break;
}
}