From 04ab1a3420b46af046a898ee5510e0d9b25ed24c Mon Sep 17 00:00:00 2001
From: LaG1924 <12997935+LaG1924@users.noreply.github.com>
Date: Sun, 27 Aug 2017 20:24:28 +0500
Subject: 2017-08-27

---
 src/Widget.cpp | 124 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 src/Widget.cpp

(limited to 'src/Widget.cpp')

diff --git a/src/Widget.cpp b/src/Widget.cpp
new file mode 100644
index 0000000..1a522ca
--- /dev/null
+++ b/src/Widget.cpp
@@ -0,0 +1,124 @@
+#include "Widget.hpp"
+
+void RootWidget::AttachWidget(std::unique_ptr<Widget> widget, Widget * parent)
+{
+    parent->childs.push_back(widget.get());
+    this->allWidgets.push_back(std::move(widget));
+}
+
+void RootWidget::AttachWidget(std::unique_ptr<Widget> widget) {
+    widget->parent = nullptr;
+    this->childs.push_back(widget.get());
+    this->allWidgets.push_back(std::move(widget));
+}
+
+std::vector<Widget*> RootWidget::GetRenderList()
+{
+    std::vector<Widget*> renderList;    
+
+    std::function<void(Widget*)> treeWalker = [&](Widget* node) {
+        for (auto it : node->childs)
+            treeWalker(it);
+        renderList.push_back(node);
+    };
+
+    for (auto& it : this->childs)
+        treeWalker(it);
+
+    return renderList;
+}
+
+void RootWidget::UpdateEvents(double mouseX, double mouseY, bool mouseButton) {
+
+    LOG(INFO) << mouseX << "x" << mouseY;
+
+    auto testIsHover = [&](double x, double y, Widget* widget) {
+        bool isOnX = widget->x > x && widget->x + widget->w < x;
+        bool isOnY = widget->y > y && widget->y + widget->h < y;
+        if (mouseButton)
+            LOG(INFO) << "X: " << isOnX << " Y: " << isOnY;
+        return isOnX && isOnY;
+    };
+
+    std::function<void(Widget*)> treeWalker = [&](Widget* node) {
+        for (auto it : node->childs)
+            treeWalker(it);
+        
+        if (testIsHover(mouseX,mouseY,node)) {
+            if (node->onHover)
+                node->onHover(node);
+            if (mouseButton && !prevBut)
+                if (node->onPress)
+                    node->onPress(node);
+            else if (!mouseButton && prevBut)
+                if (node->onRelease)
+                    node->onRelease(node);
+        }
+        else {
+            if (testIsHover(prevX, prevY, node))
+                if (node->onUnhover)
+                    node->onUnhover(node);
+        }
+        
+        if (node->onUpdate)
+            node->onUpdate(node);
+    };
+
+    for (auto it : childs)
+        treeWalker(it);
+
+    prevX = mouseX;
+    prevY = mouseY;
+    prevBut = mouseButton;
+}
+
+WidgetButton::WidgetButton()
+{
+    this->state = WidgetState::Idle;
+
+    onHover = [](Widget* widget) {
+        WidgetButton* w = dynamic_cast<WidgetButton*>(widget);
+        if (w->state != WidgetState::Pressed)
+            w->state = WidgetState::Hovering;
+        LOG(INFO) << "Hover";
+    };
+
+    onPress = [](Widget* widget) {
+        WidgetButton* w = dynamic_cast<WidgetButton*>(widget);
+        w->state = WidgetState::Pressed;
+        LOG(INFO) << "Press";
+    };
+
+    onRelease = [](Widget* widget) {
+        WidgetButton* w = dynamic_cast<WidgetButton*>(widget);
+        w->state = WidgetState::Idle;
+        w->onClick(w);
+        LOG(INFO) << "Release";
+    };
+
+    onUnhover = [](Widget *widget) {
+        WidgetButton* w = dynamic_cast<WidgetButton*>(widget);
+        if (w->state!=WidgetState::Pressed)
+            w->state = WidgetState::Idle;
+        LOG(INFO) << "Unhover";
+    };
+
+}
+
+std::tuple<double, double, double, double> WidgetButton::GetTexture()
+{
+    double yOffset;
+    switch (this->state) {
+    case WidgetState::Idle:
+        yOffset = 0.2578;
+        break;
+    case WidgetState::Hovering:
+        yOffset = 0.3359;
+        break;
+    case WidgetState::Pressed:
+        yOffset = 0.1796;
+    }
+
+    TextureCoordinates texture = AssetManager::Instance().GetTextureByAssetName("minecraft/textures/gui/widgets");
+    return { texture.x,texture.y + texture.h * yOffset,texture.w * 0.7812,texture.h * 0.07812 };
+}
-- 
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