381 lines
12 KiB
C++
381 lines
12 KiB
C++
#include "pch.h"
|
|
#include "layout.h"
|
|
#include "util.h"
|
|
|
|
Plane WidgetBorder::m_plane;
|
|
Plane WidgetImage::m_plane;
|
|
Sampler WidgetImage::m_sampler;
|
|
|
|
Node* Node::find(const char* ids)
|
|
{
|
|
uint16_t id = const_hash(ids);
|
|
if (id == m_nodeID)
|
|
return this;
|
|
for (auto& c : *this)
|
|
if (c.m_nodeID == id)
|
|
return &c;
|
|
return nullptr;
|
|
}
|
|
|
|
kEventResult Node::on_event(Event* e)
|
|
{
|
|
for (auto& c : m_children)
|
|
if (c.on_event(e) == kEventResult::Handled)
|
|
return kEventResult::Handled;
|
|
if (m_widget)
|
|
{
|
|
switch (e->m_cat)
|
|
{
|
|
case kEventCategory::MouseEvent:
|
|
if (point_in_rect(((MouseEvent*)e)->m_pos, m_clip) && m_widget->on_event(e) == kEventResult::Handled)
|
|
return kEventResult::Handled;
|
|
break;
|
|
default:
|
|
if (m_widget->on_event(e) == kEventResult::Handled)
|
|
return kEventResult::Handled;
|
|
break;
|
|
}
|
|
}
|
|
return kEventResult::UnHandled;
|
|
}
|
|
|
|
void Node::update(float width, float height)
|
|
{
|
|
YGNodeStyleSetWidth(y_node, width);
|
|
YGNodeStyleSetHeight(y_node, height);
|
|
YGNodeCalculateLayout(y_node, YGUndefined, YGUndefined, YGDirectionLTR);
|
|
glm::mat4 proj = glm::ortho(0.f, width, height, 0.f, -1.f, 1.f);
|
|
update_internal({ 0, 0 }, proj);
|
|
}
|
|
|
|
void Node::update_internal(const glm::vec2& origin, const glm::mat4& proj)
|
|
{
|
|
float x = YGNodeLayoutGetLeft(y_node);
|
|
float y = YGNodeLayoutGetTop(y_node);
|
|
float w = YGNodeLayoutGetWidth(y_node);
|
|
float h = YGNodeLayoutGetHeight(y_node);
|
|
m_pos = origin + glm::vec2(x, y);
|
|
m_size = glm::vec2(w, h);
|
|
|
|
if (parent)
|
|
{
|
|
// correct the padding clip
|
|
// should not clip the padded area
|
|
// useful to draw decorations
|
|
float pt = 0;//YGNodeLayoutGetPadding(parent->y_node, YGEdgeTop);
|
|
float pr = 0;//YGNodeLayoutGetPadding(parent->y_node, YGEdgeRight);
|
|
float pb = 0;//YGNodeLayoutGetPadding(parent->y_node, YGEdgeBottom);
|
|
float pl = 0;//YGNodeLayoutGetPadding(parent->y_node, YGEdgeLeft);
|
|
glm::vec2 off_p(pl, pt);
|
|
glm::vec2 off_s(pr, pb);
|
|
m_clip = glm::vec4(m_pos - off_p, m_size + off_p + off_s);
|
|
m_clip = rect_intersection(m_clip, parent->m_clip);
|
|
}
|
|
else
|
|
{
|
|
m_clip = glm::vec4(m_pos, m_size);
|
|
}
|
|
|
|
if (m_widget)
|
|
{
|
|
glm::mat4 pivot = glm::translate(glm::vec3(.5f, .5f, 0.f));
|
|
glm::mat4 scale = glm::scale(glm::vec3(glm::ceil(m_size), 1.f));
|
|
glm::mat4 pos = glm::translate(glm::vec3(glm::floor(m_pos), 0));
|
|
m_widget->mvp = proj * pos * scale * pivot;
|
|
m_widget->pos = pos;
|
|
m_widget->scale = scale;
|
|
m_widget->proj = proj;
|
|
m_widget->clip = m_clip;
|
|
m_widget->update();
|
|
}
|
|
for (auto& c : m_children)
|
|
c.update_internal(m_pos, proj);
|
|
}
|
|
|
|
void Node::parse_attributes(kAttribute ka, const tinyxml2::XMLAttribute* attr)
|
|
{
|
|
switch (ka)
|
|
{
|
|
case kAttribute::id:
|
|
m_nodeID_s = attr->Value();
|
|
m_nodeID = const_hash(attr->Value());
|
|
break;
|
|
case kAttribute::Width:
|
|
if (strcmp(attr->Value(), "auto") == 0)
|
|
{
|
|
YGNodeStyleSetWidth(y_node, YGUndefined);
|
|
YGNodeStyleSetWidthPercent(y_node, YGUndefined);
|
|
}
|
|
else
|
|
{
|
|
if (strchr(attr->Value(), '%'))
|
|
YGNodeStyleSetWidthPercent(y_node, attr->FloatValue());
|
|
else
|
|
YGNodeStyleSetWidth(y_node, attr->FloatValue());
|
|
}
|
|
break;
|
|
case kAttribute::MinWidth:
|
|
if (strchr(attr->Value(), '%'))
|
|
YGNodeStyleSetMinWidthPercent(y_node, attr->FloatValue());
|
|
else
|
|
YGNodeStyleSetMinWidth(y_node, attr->FloatValue());
|
|
break;
|
|
case kAttribute::MaxWidth:
|
|
YGNodeStyleSetMaxWidth(y_node, attr->FloatValue());
|
|
break;
|
|
case kAttribute::Height:
|
|
if (strcmp(attr->Value(), "auto") == 0)
|
|
{
|
|
YGNodeStyleSetHeight(y_node, YGUndefined);
|
|
YGNodeStyleSetHeightPercent(y_node, YGUndefined);
|
|
}
|
|
else
|
|
{
|
|
if (strchr(attr->Value(), '%'))
|
|
YGNodeStyleSetHeightPercent(y_node, attr->FloatValue());
|
|
else
|
|
YGNodeStyleSetHeight(y_node, attr->FloatValue());
|
|
}
|
|
break;
|
|
case kAttribute::MinHeight:
|
|
YGNodeStyleSetMinHeight(y_node, attr->FloatValue());
|
|
break;
|
|
case kAttribute::MaxHeight:
|
|
YGNodeStyleSetMaxHeight(y_node, attr->FloatValue());
|
|
break;
|
|
case kAttribute::Grow:
|
|
YGNodeStyleSetFlexGrow(y_node, attr->FloatValue());
|
|
break;
|
|
case kAttribute::Shrink:
|
|
YGNodeStyleSetFlexShrink(y_node, attr->FloatValue());
|
|
break;
|
|
case kAttribute::FlexDir:
|
|
{
|
|
YGFlexDirection dir = YGFlexDirectionRow;
|
|
if (strcmp("col", attr->Value()) == 0)
|
|
dir = YGFlexDirectionColumn;
|
|
else if (strcmp("col-reverse", attr->Value()) == 0)
|
|
dir = YGFlexDirectionColumnReverse;
|
|
else if (strcmp("row", attr->Value()) == 0)
|
|
dir = YGFlexDirectionRow;
|
|
else if (strcmp("row-reverse", attr->Value()) == 0)
|
|
dir = YGFlexDirectionRowReverse;
|
|
YGNodeStyleSetFlexDirection(y_node, dir);
|
|
break;
|
|
}
|
|
case kAttribute::FlexWrap:
|
|
YGNodeStyleSetFlexWrap(y_node, attr->IntValue() ? YGWrapWrap : YGWrapNoWrap);
|
|
break;
|
|
case kAttribute::Justify:
|
|
{
|
|
YGJustify v = YGJustifyFlexStart;
|
|
if (strcmp("center", attr->Value()) == 0)
|
|
v = YGJustifyCenter;
|
|
else if (strcmp("flex-start", attr->Value()) == 0)
|
|
v = YGJustifyFlexStart;
|
|
else if (strcmp("flex-end", attr->Value()) == 0)
|
|
v = YGJustifyFlexEnd;
|
|
else if (strcmp("space-around", attr->Value()) == 0)
|
|
v = YGJustifySpaceAround;
|
|
else if (strcmp("space-between", attr->Value()) == 0)
|
|
v = YGJustifySpaceBetween;
|
|
YGNodeStyleSetJustifyContent(y_node, v);
|
|
break;
|
|
}
|
|
case kAttribute::Align:
|
|
{
|
|
YGAlign v = YGAlignStretch;
|
|
if (strcmp("stretch", attr->Value()) == 0)
|
|
v = YGAlignStretch;
|
|
else if (strcmp("flex-start", attr->Value()) == 0)
|
|
v = YGAlignFlexStart;
|
|
else if (strcmp("flex-end", attr->Value()) == 0)
|
|
v = YGAlignFlexEnd;
|
|
else if (strcmp("center", attr->Value()) == 0)
|
|
v = YGAlignCenter;
|
|
YGNodeStyleSetAlignItems(y_node, v);
|
|
break;
|
|
}
|
|
case kAttribute::Padding:
|
|
{
|
|
glm::vec4 pad;
|
|
int n = sscanf(attr->Value(), "%f %f %f %f", &pad.x, &pad.y, &pad.z, &pad.w);
|
|
if (n == 1)
|
|
{
|
|
YGNodeStyleSetPadding(y_node, YGEdgeTop, pad.x);
|
|
YGNodeStyleSetPadding(y_node, YGEdgeRight, pad.x);
|
|
YGNodeStyleSetPadding(y_node, YGEdgeBottom, pad.x);
|
|
YGNodeStyleSetPadding(y_node, YGEdgeLeft, pad.x);
|
|
}
|
|
else
|
|
{
|
|
YGNodeStyleSetPadding(y_node, YGEdgeTop, pad.x);
|
|
YGNodeStyleSetPadding(y_node, YGEdgeRight, pad.y);
|
|
YGNodeStyleSetPadding(y_node, YGEdgeBottom, pad.z);
|
|
YGNodeStyleSetPadding(y_node, YGEdgeLeft, pad.w);
|
|
}
|
|
break;
|
|
}
|
|
case kAttribute::Margin:
|
|
{
|
|
glm::vec4 pad;
|
|
int n = sscanf(attr->Value(), "%f %f %f %f", &pad.x, &pad.y, &pad.z, &pad.w);
|
|
if (n == 1)
|
|
{
|
|
YGNodeStyleSetMargin(y_node, YGEdgeTop, pad.x);
|
|
YGNodeStyleSetMargin(y_node, YGEdgeRight, pad.x);
|
|
YGNodeStyleSetMargin(y_node, YGEdgeBottom, pad.x);
|
|
YGNodeStyleSetMargin(y_node, YGEdgeLeft, pad.x);
|
|
}
|
|
else
|
|
{
|
|
YGNodeStyleSetMargin(y_node, YGEdgeTop, pad.x);
|
|
YGNodeStyleSetMargin(y_node, YGEdgeRight, pad.y);
|
|
YGNodeStyleSetMargin(y_node, YGEdgeBottom, pad.z);
|
|
YGNodeStyleSetMargin(y_node, YGEdgeLeft, pad.w);
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
if (m_widget)
|
|
m_widget->parse_attributes(ka, attr);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void Node::load_internal(const tinyxml2::XMLElement* x_node)
|
|
{
|
|
m_name = x_node->Name();
|
|
auto attr = x_node->FirstAttribute();
|
|
|
|
kWidget widget_id = (kWidget)const_hash(x_node->Name());
|
|
switch (widget_id)
|
|
{
|
|
case kWidget::Border:
|
|
m_widget = std::make_unique<WidgetBorder>();
|
|
break;
|
|
case kWidget::Shape:
|
|
m_widget = std::make_unique<WidgetShape>();
|
|
break;
|
|
case kWidget::Text:
|
|
m_widget = std::make_unique<WidgetText>();
|
|
break;
|
|
case kWidget::Image:
|
|
m_widget = std::make_unique<WidgetImage>();
|
|
break;
|
|
}
|
|
|
|
while (attr)
|
|
{
|
|
parse_attributes((kAttribute)const_hash(attr->Name()), attr);
|
|
attr = attr->Next();
|
|
}
|
|
|
|
if (m_widget)
|
|
m_widget->create();
|
|
|
|
if (widget_id == kWidget::Text)
|
|
SetSize(((WidgetText*)m_widget.get())->m_text_mesh.bb);
|
|
|
|
auto x_child = x_node->FirstChildElement();
|
|
while (x_child)
|
|
{
|
|
//Node n;
|
|
if (strcmp("ref", x_child->Name()) == 0)
|
|
{
|
|
auto ids = x_child->Attribute("id");
|
|
auto id = const_hash(ids);
|
|
auto& ref = (*m_manager)[id];
|
|
m_children.push_back(ref.clone());
|
|
m_children.back().parent = this;
|
|
YGNodeInsertChild(y_node, m_children.back().y_node, YGNodeGetChildCount(y_node));
|
|
}
|
|
else
|
|
{
|
|
m_children.emplace_back();
|
|
auto& n = m_children.back();
|
|
n.parent = this;
|
|
n.m_manager = m_manager;
|
|
YGNodeInsertChild(y_node, n.y_node, YGNodeGetChildCount(y_node));
|
|
n.load_internal(x_child);
|
|
}
|
|
x_child = x_child->NextSiblingElement();
|
|
}
|
|
}
|
|
|
|
Node Node::clone()
|
|
{
|
|
Node n;
|
|
YGNodeCopyStyle(n.y_node, y_node);
|
|
if (m_widget)
|
|
n.m_widget = m_widget->clone();
|
|
n.m_manager = m_manager;
|
|
for (auto& c : m_children)
|
|
{
|
|
n.m_children.push_back(std::move(c.clone()));
|
|
auto& cn = n.m_children.back(); // child node reference
|
|
cn.parent = &n;
|
|
YGNodeInsertChild(n.y_node, cn.y_node, YGNodeGetChildCount(n.y_node));
|
|
}
|
|
return std::move(n);
|
|
}
|
|
|
|
bool LayoutManager::load(const char* path)
|
|
{
|
|
struct stat tmp_info;
|
|
if (stat(path, &tmp_info) != 0)
|
|
return false;
|
|
if (tmp_info.st_mtime <= m_file_info.st_mtime)
|
|
return false;
|
|
m_file_info = tmp_info;
|
|
m_path = path;
|
|
|
|
auto old = std::move(m_layouts);
|
|
|
|
tinyxml2::XMLDocument xml;
|
|
auto ret = xml.LoadFile(path);
|
|
if (ret != tinyxml2::XMLError::XML_SUCCESS)
|
|
return false;
|
|
|
|
tinyxml2::XMLElement* current = xml.RootElement()->FirstChildElement();
|
|
while (current)
|
|
{
|
|
auto id_str = current->Attribute("id");
|
|
if (!id_str)
|
|
{
|
|
printf("Layout node without id\n");
|
|
return false;
|
|
}
|
|
printf("Parsing layout: %s\n", id_str);
|
|
uint16_t id = const_hash(id_str);
|
|
auto p = m_layouts.find(id);
|
|
if (p == m_layouts.end())
|
|
{
|
|
auto& node = m_layouts[id];
|
|
node.m_manager = this;
|
|
// try to copy the old size values
|
|
if (old.count(id))
|
|
{
|
|
const auto& old_node = old[id];
|
|
YGNodeCopyStyle(node.y_node, old_node.y_node);
|
|
}
|
|
if (!current->NoChildren())
|
|
node.load_internal(current->FirstChildElement());
|
|
}
|
|
else
|
|
{
|
|
printf("Layout id \"%s\" duplicated\n", id_str);
|
|
}
|
|
current = current->NextSiblingElement("layout");
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool LayoutManager::reload()
|
|
{
|
|
// avoid conflict when assigning the same string from c_str
|
|
std::string path_copy = m_path;
|
|
return load(path_copy.c_str());
|
|
}
|