99 lines
2.6 KiB
C++
99 lines
2.6 KiB
C++
//
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// Created by ricardo on 2022/6/11.
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//
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#include "mainScene.h"
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SceneManager::SceneManager(int stop_node_number)
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{
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scene = new QGraphicsScene;
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pixmap_items = new QGraphicsPixmapItem[stop_node_number];
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stop_pos_pairs = new PosPair[stop_node_number];
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rect_item = new QGraphicsRectItem;
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int stop_space_length = stop_pos_pairs->GetStopSpaceLength(stop_node_number);
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double stop_scale = 0.15;
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QTransform stop_transform;
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stop_transform.scale(stop_scale, stop_scale);
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// 为站点对象设置
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// 并将其添加到画图中
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for(size_t i = 0; i < stop_node_number; i++)
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{
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pixmap_items[i].setPixmap(QPixmap(":/picture/stop.png"));
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pixmap_items[i].setTransform(stop_transform);
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scene->addItem(&pixmap_items[i]);
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}
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// 初始化站点的位置
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for(size_t i = 0; i < stop_node_number; i++)
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{
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// 对于后面的节点执行累加
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for(size_t j = i + 1; j < stop_node_number; j++)
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{
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stop_pos_pairs[j].AddLength(stop_space_length);
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}
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pixmap_items[i].setPos(stop_pos_pairs[i].pos_x, stop_pos_pairs[i].pos_y);
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qDebug() << i << " " << stop_pos_pairs[i].pos_x << " " << stop_pos_pairs[i].pos_y;
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}
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// 画一个描边的矩形框
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rect_item->setRect(0, 0, 595, 395);
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scene->addItem(rect_item);
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}
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SceneManager::~SceneManager()
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{
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delete []stop_pos_pairs;
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delete []pixmap_items;
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delete scene;
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}
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PosPair::PosPair()
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{
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pos_x = stop_begin_x;
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pos_y = stop_begin_y;
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}
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int PosPair::GetStopSpaceLength(int stop_number) const
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{
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return 2 * (stop_rail_width + stop_rail_height) / stop_number;
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}
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void PosPair::AddLength(int length)
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{
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distance += length;
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if(distance > 2 * stop_rail_width + stop_rail_height)
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{
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// 站点在左轨道
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pos_x = stop_begin_x;
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pos_y = stop_begin_y + (stop_rail_width + stop_rail_height) * 2 - distance;
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}
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else if(distance > stop_rail_width + stop_rail_height and
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distance <= 2 * stop_rail_width + stop_rail_height)
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{
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// 站点在下轨道
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pos_y = stop_begin_y + stop_rail_height;
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pos_x = stop_begin_x + 2 * stop_rail_width + stop_rail_height - distance;
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}
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else if(distance > stop_rail_width and
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distance <= stop_rail_width + stop_rail_height)
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{
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// 站点在右轨道
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pos_x = stop_begin_x + stop_rail_width;
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pos_y = stop_begin_y + stop_rail_width + stop_rail_height - distance;
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}
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else
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{
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// 站点在上轨道
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pos_y = stop_begin_y;
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pos_x = stop_begin_x + distance;
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}
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}
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