void HKWidgetRenderer::Render(const HKWidget &widget, const MFMatrix &worldTransform)
{
MFVector widgetColour = widget.GetColour();
MFVector size = widget.GetSize();
size.x -= padding.x + padding.z;
size.y -= padding.y + padding.w;
if(colour.w > 0.f)
{
float borderWidth = border.x + border.z;
float borderHeight = border.y + border.w;
MFPrimitive_DrawUntexturedQuad(padding.x + border.x, padding.y + border.y, size.x - borderWidth, size.y - borderHeight, colour*widgetColour, worldTransform);
}
if(border.x > 0.f) // left
MFPrimitive_DrawUntexturedQuad(padding.x, padding.y, border.x, size.y, borderColour*widgetColour, worldTransform);
if(border.y > 0.f) // top
MFPrimitive_DrawUntexturedQuad(padding.x, padding.y, size.x, border.y, borderColour*widgetColour, worldTransform);
if(border.z > 0.f) // right
MFPrimitive_DrawUntexturedQuad(size.x - border.z + padding.x, padding.y, border.z, size.y, borderColour*widgetColour, worldTransform);
if(border.w > 0.f) // bottom
MFPrimitive_DrawUntexturedQuad(padding.x, padding.y + size.y - border.w, size.x, border.w, borderColour*widgetColour, worldTransform);
if(pImage)
{
if(margin9Cell > 0.f)
{
// 9 cell stuff...
}
else
{
// draw the background image centered in the box
MFMaterial_SetMaterial(pImage);
float offset = 0;
float tc = MFRenderer_GetTexelCenterOffset();
if(tc > 0.f)
{
if(size.x == texWidth && size.y == texHeight)
offset = tc;
}
MFPrimitive_DrawQuad(padding.x - offset, padding.y - offset, size.x, size.y, widgetColour, 0, 0, 1, 1, worldTransform);
}
}
}
HKWidget *HKUserInterface::CreateWidget(const char *pWidgetType)
{
HKWidgetFactory::FactoryType *pType;
HKWidget *pWidget = pFactory->Create(pWidgetType, &pType);
if(!pWidget)
return NULL;
HKWidgetRenderer *pRenderer = pRendererFactory->Create(pWidgetType);
while(!pRenderer && pType->pParent)
{
pType = pType->pParent;
pRenderer = pRendererFactory->Create(pType->typeName);
}
if(pRenderer)
pWidget->SetRenderer(pRenderer);
return pWidget;
}
void HKWidgetRendererLabel::Render(const HKWidget &widget, const MFMatrix &worldTransform)
{
HKWidgetRenderer::Render(widget, worldTransform);
HKWidgetLabel &label = (HKWidgetLabel&)widget;
MFString l = label.GetText();
if(!l.IsEmpty())
{
MFFont *pFont = label.GetFont();
float height = label.GetTextHeight();
float shadowDepth = label.GetShadowDepth();
const MFVector &size = widget.GetSize();
const MFVector &colour = widget.GetColour();
const MFVector &textColour = label.GetTextColour();
MFFontJustify j = label.GetTextJustification();
const char *pString = l.CStr();
if(shadowDepth > 0.f)
MFFont_DrawTextJustified(pFont, pString, MakeVector(shadowDepth, shadowDepth), size.x, size.y, j, height, MFVector::black, -1, worldTransform);
MFFont_DrawTextJustified(pFont, pString, MFVector::zero, size.x, size.y, j, height, textColour * colour, -1, worldTransform);
}
}
void HKWidgetListbox::ArrangeChildren()
{
// early out?
int numChildren = GetNumChildren();
if(numChildren == 0)
return;
MFVector pPos = orientation == Horizontal ? MakeVector(padding.x + scrollOffset, padding.y) : MakeVector(padding.x, padding.y + scrollOffset);
MFVector pSize = MakeVector(size.x - (padding.x + padding.z), size.y - (padding.y + padding.w));
contentSize = 0.f;
for(int a=0; a<numChildren; ++a)
{
HKWidget *pWidget = GetChild(a);
if(pWidget->GetVisible() == Gone)
continue;
const MFVector &cMargin = pWidget->GetLayoutMargin();
const MFVector &cSize = pWidget->GetSize();
MFVector tPos = pPos + MakeVector(cMargin.x, cMargin.y);
MFVector tSize = MFMax(pSize - MakeVector(cMargin.x + cMargin.z, cMargin.y + cMargin.w), MFVector::zero);
if(orientation == Horizontal)
{
float itemSize = cSize.x + cMargin.x + cMargin.z;
contentSize += itemSize;
pPos.x += itemSize;
pWidget->SetPosition(tPos);
pWidget->SetHeight(tSize.y);
}
else
{
float itemSize = cSize.y + cMargin.y + cMargin.w;
contentSize += itemSize;
pPos.y += itemSize;
pWidget->SetPosition(tPos);
pWidget->SetWidth(tSize.x);
}
}
}
void HKWidgetLayoutLinear::ArrangeChildren()
{
bool bFitWidth = bAutoWidth && GetHAlign() != Align_Fill; // fitFlags & FitContentHorizontal
bool bFitHeight = bAutoHeight && GetVAlign() != VAlign_Fill; // fitFlags & FitContentVertical
// early out?
int numChildren = GetNumChildren();
if(numChildren == 0)
{
if(bFitWidth || bFitHeight)
{
// resize the layout
MFVector newSize = GetSize();
if(bFitWidth)
newSize.x = padding.x + padding.z;
if(bFitHeight)
newSize.y = padding.y + padding.w;
Resize(newSize);
}
return;
}
// calculate weight and fit
float totalWeight = 0.f;
MFVector fit = MakeVector(padding.x + padding.z, padding.y + padding.w);
for(int a=0; a<numChildren; ++a)
{
HKWidget *pWidget = GetChild(a);
if(pWidget->GetVisible() == Gone)
continue;
const MFVector &cSize = pWidget->GetSizeWithMargin();
if(orientation == Horizontal)
{
if(pWidget->GetHAlign() == Align_Fill) // fill horizontally
totalWeight += pWidget->GetLayoutWeight();
else
fit.x += cSize.x;
fit.y = MFMax(fit.y, cSize.y + padding.y + padding.w);
}
else
{
if(pWidget->GetVAlign() == VAlign_Fill) // fill vertically
totalWeight += pWidget->GetLayoutWeight();
else
fit.y += cSize.y;
fit.x = MFMax(fit.x, cSize.x + padding.x + padding.z);
}
}
if(bFitWidth || bFitHeight)
{
// resize the layout
MFVector newSize = size;
if(bFitWidth)
newSize.x = fit.x;
if(bFitHeight)
newSize.y = fit.y;
Resize(newSize);
}
MFVector pPos = MakeVector(padding.x, padding.y);
MFVector pSize = MakeVector(size.x - (padding.x + padding.z), size.y - (padding.y + padding.w));
MFVector slack = MFMax(size - fit, MFVector::zero);
for(int a=0; a<numChildren; ++a)
{
HKWidget *pWidget = GetChild(a);
if(pWidget->GetVisible() == Gone)
continue;
const MFVector &cMargin = pWidget->GetLayoutMargin();
const MFVector &cSize = pWidget->GetSize();
MFVector tPos = pPos + MakeVector(cMargin.x, cMargin.y);
MFVector tSize = MFMax(pSize - MakeVector(cMargin.x + cMargin.z, cMargin.y + cMargin.w), MFVector::zero);
Align align = pWidget->GetHAlign();
VAlign valign = pWidget->GetVAlign();
MFVector newSize = cSize;
if(orientation == Horizontal)
{
if(align == Align_Fill) // fill horizontally
{
// this widget fills available empty space in the parent container
newSize.x = slack.x * (pWidget->GetLayoutWeight() / totalWeight);
pPos.x += newSize.x;
newSize.x = MFMax(0.f, newSize.x - cMargin.x - cMargin.z);
}
else
{
pPos.x += cSize.x + cMargin.x + cMargin.z;
}
switch(valign)
{
case VAlign_None:
case VAlign_Top:
pWidget->SetPosition(tPos);
break;
case VAlign_Center:
pWidget->SetPosition(tPos + MakeVector(0, MFMax(tSize.y - cSize.y, 0.f) * 0.5f));
break;
case VAlign_Bottom:
pWidget->SetPosition(tPos + MakeVector(0, MFMax(tSize.y - cSize.y, 0.f)));
break;
case VAlign_Fill:
pWidget->SetPosition(tPos);
newSize.y = tSize.y;
break;
default:
MFUNREACHABLE;
}
}
else
{
if(valign == VAlign_Fill) // fill vertically
{
// this widget fills available empty space in the parent container
newSize.y = slack.y * (pWidget->GetLayoutWeight() / totalWeight);
pPos.y += newSize.y;
newSize.y = MFMax(0.f, newSize.y - cMargin.y - cMargin.w);
}
else
{
pPos.y += cSize.y + cMargin.y + cMargin.w;
}
switch(align)
{
case Align_None:
case Align_Left:
pWidget->SetPosition(tPos);
break;
case Align_Center:
pWidget->SetPosition(tPos + MakeVector(MFMax(tSize.x - cSize.x, 0.f) * 0.5f, 0));
break;
case Align_Right:
pWidget->SetPosition(tPos + MakeVector(MFMax(tSize.x - cSize.x, 0.f), 0));
break;
case Align_Fill:
pWidget->SetPosition(tPos);
newSize.x = tSize.x;
break;
default:
MFUNREACHABLE;
}
}
ResizeChild(pWidget, newSize);
}
}
void HKWidgetLayoutFrame::ArrangeChildren()
{
bool bFitWidth = bAutoWidth && GetHAlign() != Align_Fill; // fitFlags & FitContentHorizontal
bool bFitHeight = bAutoHeight && GetVAlign() != VAlign_Fill; // fitFlags & FitContentVertical
// early out?
int numChildren = GetNumChildren();
if(numChildren == 0)
{
if(bFitWidth || bFitHeight)
{
// resize the layout
MFVector newSize = GetSize();
if(bFitWidth)
newSize.x = padding.x + padding.z;
if(bFitHeight)
newSize.y = padding.y + padding.w;
Resize(newSize);
}
return;
}
if(bFitWidth || bFitHeight)
{
// fit to largest child in each dimension
MFVector fit = MFVector::zero;
for(int a=0; a<numChildren; ++a)
{
HKWidget *pWidget = GetChild(a);
const MFVector &cSize = pWidget->GetSizeWithMargin();
fit.x = MFMax(fit.x, cSize.x + padding.x + padding.z);
fit.y = MFMax(fit.y, cSize.y + padding.y + padding.w);
}
// resize the layout
MFVector newSize = GetSize();
if(bFitWidth)
newSize.x = fit.x;
if(bFitHeight)
newSize.y = fit.y;
Resize(newSize);
}
MFVector cPos = MakeVector(padding.x, padding.y);
MFVector cSize = MakeVector(size.x - (padding.x + padding.z), size.y - (padding.y + padding.w));
for(int a=0; a<numChildren; ++a)
{
HKWidget *pWidget = GetChild(a);
const MFVector &cMargin = pWidget->GetLayoutMargin();
const MFVector &size = pWidget->GetSize();
MFVector tPos = cPos + MakeVector(cMargin.x, cMargin.y);
MFVector tSize = cSize - MakeVector(cMargin.x + cMargin.z, cMargin.y + cMargin.w);
switch(pWidget->GetLayoutJustification())
{
case TopLeft:
pWidget->SetPosition(tPos);
break;
case TopCenter:
pWidget->SetPosition(tPos + MakeVector((tSize.x - size.x) * 0.5f, 0));
break;
case TopRight:
pWidget->SetPosition(tPos + MakeVector(tSize.x - size.x, 0));
break;
case TopFill:
pWidget->SetPosition(tPos);
ResizeChild(pWidget, MakeVector(tSize.x, size.y));
break;
case CenterLeft:
pWidget->SetPosition(tPos + MakeVector(0, (tSize.y - size.y) * 0.5f));
break;
case Center:
pWidget->SetPosition(tPos + MakeVector((tSize.x - size.x) * 0.5f, (tSize.y - size.y) * 0.5f));
break;
case CenterRight:
pWidget->SetPosition(tPos + MakeVector(tSize.x - size.x, (tSize.y - size.y) * 0.5f));
break;
case CenterFill:
pWidget->SetPosition(tPos + MakeVector(0, (tSize.y - size.y) * 0.5f));
ResizeChild(pWidget, MakeVector(tSize.x, size.y));
break;
case BottomLeft:
pWidget->SetPosition(tPos + MakeVector(0, tSize.y - size.y));
break;
case BottomCenter:
pWidget->SetPosition(tPos + MakeVector((tSize.x - size.x) * 0.5f, tSize.y - size.y));
break;
case BottomRight:
pWidget->SetPosition(tPos + MakeVector(tSize.x - size.x, tSize.y - size.y));
break;
case BottomFill:
pWidget->SetPosition(tPos + MakeVector(0, tSize.y - size.y));
ResizeChild(pWidget, MakeVector(tSize.x, size.y));
break;
case FillLeft:
pWidget->SetPosition(tPos);
ResizeChild(pWidget, MakeVector(size.x, tSize.y));
break;
case FillCenter:
pWidget->SetPosition(tPos + MakeVector((tSize.x - size.x) * 0.5f, 0));
ResizeChild(pWidget, MakeVector(size.x, tSize.y));
break;
case FillRight:
pWidget->SetPosition(tPos + MakeVector(tSize.x - size.x, 0));
ResizeChild(pWidget, MakeVector(size.x, tSize.y));
break;
case Fill:
pWidget->SetPosition(tPos);
ResizeChild(pWidget, tSize);
break;
case None:
// this widget has absolute coordinates..
default:
break;
}
}
}
void HKUserInterface::OnInputEvent(HKInputManager &manager, const HKInputManager::EventInfo &ev)
{
HKWidget *pFocusWidget = pFocusList[ev.pSource->sourceID];
if(ev.pSource->device == IDD_Mouse || ev.pSource->device == IDD_TouchPanel)
{
// positional events will be sent to the hierarchy
MFVector pos = { ev.hover.x, ev.hover.y, 0.f, 1.f };
MFVector dir = { 0.f, 0.f, 1.f, 1.f };
MFVector localPos;
HKWidget *pWidget = NULL;
if(pFocusWidget)
{
pWidget = pFocusWidget->IntersectWidget(pos, dir, &localPos);
if(!pWidget)
pWidget = pFocusWidget;
}
else
{
pWidget = pRoot->IntersectWidget(pos, dir, &localPos);
}
// update the down widget
if(ev.ev == HKInputManager::IE_Down)
pDownOver[ev.pSource->sourceID] = pWidget;
else if(ev.ev == HKInputManager::IE_Tap)
{
// if we receive a tap event, check that it was on the same widget we recorded the down event for
if(pDownOver[ev.pSource->sourceID] != pWidget)
return;
}
// check if the hover has changed
HKWidget *pHover = pHoverList[ev.pSource->sourceID];
if(pHover != pWidget)
{
pHoverList[ev.pSource->sourceID] = pWidget;
if(pHover)
{
HKWidgetInputEvent ie(pHover, ev.pSource);
pHover->OnHoverOut(*pHover, ie);
}
if(pWidget)
{
HKWidgetInputEvent ie(pWidget, ev.pSource);
pWidget->OnHoverOver(*pWidget, ie);
}
}
if(pWidget)
{
HKInputManager::EventInfo transformedEv = ev;
LocaliseInput(transformedEv, pWidget, localPos);
// send the input event
if(pWidget->InputEvent(manager, transformedEv))
return;
}
}
else if(pFocusWidget)
{
// non-positional events
pFocusWidget->InputEvent(manager, ev);
}
}