Created RegionPager

editor/region_pager.cpp

@@ -0,0 +1,55 @@
+#include "region_pager.hpp"
+
+#include <stdexcept>
+
+RegionPager::RegionPager() {
+	//
+}
+
+RegionPager::~RegionPager() {
+	if (onDelete) {
+		for (auto& i : regionList) {
+			onDelete(&i);
+		}
+	}
+}
+
+Region* RegionPager::NewRegion(int x, int y) {
+	for (auto& i : regionList) {
+		if (i.GetX() == x && i.GetY() == y) {
+			throw(std::runtime_error("Duplicate Regions detected"));
+		}
+	}
+
+	regionList.push_front({x, y, regionWidth, regionHeight});
+	if (onNew) {
+		onNew(&regionList.front());
+	}
+	return &regionList.front();
+}
+
+Region* RegionPager::GetRegion(int x, int y) {
+	for (auto& i : regionList) {
+		if (i.GetX() == x && i.GetY() == y) {
+			return &i;
+		}
+	}
+	//create, insert and return
+	regionList.push_front({x, y, regionWidth, regionHeight});
+	if (onNew) {
+		onNew(&regionList.front());
+	}
+	return &regionList.front();
+}
+
+void RegionPager::DeleteRegion(int x, int y) {
+	for (std::list<Region>::iterator i = regionList.begin(); i != regionList.end(); i++) {
+		if (i->GetX() == x && i->GetY() == y) {
+			if (onDelete) {
+				onDelete(&(*i));
+			}
+			regionList.erase(i);
+			break;
+		}
+	}
+}