添加OpenCv

Pages/P14_AtlasPage.cpp

@@ -1,14 +1,165 @@
 #include "P14_AtlasPage.h"
 #include "ui_P14_AtlasPage.h"
 
-P14_AtlasPage::P14_AtlasPage(QWidget *parent) :
-    QWidget(parent),
-    ui(new Ui::P14_AtlasPage)
+#include <QDir>
+#include <QDebug>
+#include <QCoreApplication>
+#include <QMouseEvent>
+#include <QScrollArea>
+#include <QScrollBar>
+P14_AtlasPage::P14_AtlasPage(QWidget *parent)
+    : QWidget(parent), ui(new Ui::P14_AtlasPage)
 {
     ui->setupUi(this);
+    WinInit();
 }
 
 P14_AtlasPage::~P14_AtlasPage()
 {
     delete ui;
 }
+
+void P14_AtlasPage::WinInit()
+{
+
+    /* ----- 1. 扫描三组图 ----- */
+    QString base = "./ProgramConfig/随机图册库";
+    QDir dir1(base + "/电气图");
+    QDir dir2(base + "/机械图");
+    QDir dir3(base + "/液压图");
+
+    auto scan = [](QDir d, QMap<QString,QString> &map, QStringList &list){
+        d.setNameFilters({"*.png","*.PNG"});
+        d.setFilter(QDir::Files | QDir::NoDotAndDotDot);
+        for (const QString &f : d.entryList()){
+            map[f] = d.absoluteFilePath(f);
+            list.append(f);
+        }
+    };
+
+    scan(dir1, Atlas1, AtStr1);
+    scan(dir2, Atlas2, AtStr2);
+    scan(dir3, Atlas3, AtStr3);
+
+    /* ----- 2. 界面初始 ----- */
+    CurrentAtlas = 1;
+    ui->LV_FileList->addItems(AtStr1);
+    ui->Label_Img->setParent(nullptr);
+    ui->scrollArea->setWidget(ui->Label_Img);
+    ui->scrollArea->setWidgetResizable(false);
+    ui->Label_Img->installEventFilter(this);
+    ui->Label_Zoom->setText("100.00");
+    on_LV_FileList_currentTextChanged(AtStr1[0]);
+
+}
+
+/* ---------- 列表换图 ---------- */
+void P14_AtlasPage::on_LV_FileList_currentTextChanged(const QString &currentText)
+{
+
+    if (currentText.isEmpty()) return;
+    ui->Label_Img->setText("");
+    QString path;
+    if(CurrentAtlas ==1){
+        path = Atlas1.value(currentText);          // 默认先电气图
+    }else if(CurrentAtlas ==2){
+        path = Atlas2.value(currentText);          // 默认先电气图
+    }else if(CurrentAtlas ==3){
+        path = Atlas3.value(currentText);          // 默认先电气图
+    }
+
+    QPixmap pix(path);
+    if (!pix.isNull()) {
+        Img_W = pix.width();
+        Img_H = pix.height();
+        Img_Zoom = 0.238f;
+        ui->Label_Zoom->setText("23.8 %");
+        ui->Label_Img->setPixmap(pix);
+        ui->Label_Img->resize(788, 557);
+        ui->Label_Img->setScaledContents(true);
+    } else {
+        ui->Label_Img->clear();
+        ui->Label_Img->setText("图册加载失败");
+    }
+}
+
+/* ---------- 放大 ---------- */
+void P14_AtlasPage::on_But_Magnify_clicked()
+{
+    if (Img_Zoom >= 1.3f) return;
+    if(Img_Zoom < 0.25f)
+        Img_Zoom = 0.25f;
+    else
+        Img_Zoom += 0.05f;
+    ui->Label_Zoom->setText(QString::number(Img_Zoom*100) + " %");
+    ui->Label_Img->resize(Img_W * Img_Zoom, Img_H * Img_Zoom);
+}
+
+/* ---------- 缩小 ---------- */
+void P14_AtlasPage::on_But_Reduce_clicked()
+{
+    if (Img_Zoom <= 0.238f) return;
+    Img_Zoom -= 0.05f;
+    if (Img_Zoom < 0.25f) Img_Zoom = 0.238f;
+    ui->Label_Zoom->setText(QString::number(Img_Zoom*100) + " %");
+    ui->Label_Img->resize(Img_W * Img_Zoom, Img_H * Img_Zoom);
+}
+
+/* ---------- 底部三按钮 ---------- */
+void P14_AtlasPage::on_But_Atlas_1_clicked()
+{
+    ui->LV_FileList->clear();
+    ui->LV_FileList->addItems(AtStr1);
+    CurrentAtlas = 1;
+}
+void P14_AtlasPage::on_But_Atlas_2_clicked()
+{
+    ui->LV_FileList->clear();
+    ui->LV_FileList->addItems(AtStr2);
+    CurrentAtlas = 2;
+}
+void P14_AtlasPage::on_But_Atlas_3_clicked()
+{
+    ui->LV_FileList->clear();
+    ui->LV_FileList->addItems(AtStr3);
+    CurrentAtlas = 3;
+}
+
+/* ---------- 鼠标拖拽平移 ---------- */
+bool P14_AtlasPage::eventFilter(QObject *obj, QEvent *ev)
+{
+    if (obj != ui->Label_Img) return false;
+
+    switch (ev->type()) {
+    case QEvent::MouseButtonPress:
+        if (static_cast<QMouseEvent*>(ev)->button() == Qt::LeftButton) {
+            dragging = true;
+            dragStart = static_cast<QMouseEvent*>(ev)->pos();
+            ui->Label_Img->setCursor(Qt::ClosedHandCursor);
+            return true;
+        }
+        break;
+    case QEvent::MouseMove:
+        if (dragging) {
+            auto *e = static_cast<QMouseEvent*>(ev);
+            int dx = e->pos().x() - dragStart.x();
+            int dy = e->pos().y() - dragStart.y();
+            ui->scrollArea->horizontalScrollBar()->setValue(
+                ui->scrollArea->horizontalScrollBar()->value() - dx);
+            ui->scrollArea->verticalScrollBar()->setValue(
+                ui->scrollArea->verticalScrollBar()->value() - dy);
+            dragStart = e->pos();
+            return true;
+        }
+        break;
+    case QEvent::MouseButtonRelease:
+        if (dragging && static_cast<QMouseEvent*>(ev)->button() == Qt::LeftButton) {
+            dragging = false;
+            ui->Label_Img->unsetCursor();
+            return true;
+        }
+        break;
+    default: break;
+    }
+    return false;
+}