toc添加数据管理功能

HPPA/HPPA.cpp

@@ -7,11 +7,15 @@
 
 #include "HPPA.h"
 #include "RasterLayer.h"
+#include "RasterImageLayer.h"
+#include "RasterRenderParams.h"
 #include "LayerTreeLayerNode.h"
 #include "MapTool.h"
 #include "MapToolPan.h"
 #include "MapToolSpectral.h"
 #include "MapTools.h"
+#include <algorithm>
+#include <cmath>
 
 HPPA* HPPA::s_instance = nullptr;
 
@@ -818,8 +822,8 @@ void HPPA::initControlTabwidget()
 	ui.controlTabWidget->addTab(m_tmc, QString::fromLocal8Bit("2轴控制"));
 
 	// Connect ImageControl band change to re-render (m_ic created in initControlTabwidget)
-	connect(m_ic, SIGNAL(bandSelectionChanged(double,double,double)),
+	//connect(m_ic, SIGNAL(bandSelectionChanged(double, double, double)),
-		this, SLOT(onBandSelectionChanged(double,double,double)));
+	//	this, SLOT(onBandSelectionChanged(double, double, double)));
 }
 
 void HPPA::recordFromRobotArm(int fileCounter)
@@ -1011,6 +1015,7 @@ void HPPA::removeLayerByTreeIndex()
 
     auto* layerNode = static_cast<LayerTreeLayer*>(node);
     MapLayer* mapLayer = layerNode->mapLayer();
+
     QWidget* layerWidget = nullptr;
 
     if (mapLayer && m_MapLayerStore)
@@ -1042,6 +1047,68 @@ void HPPA::removeLayerByTreeIndex()
     }
 }
 
+void HPPA::showColorImageByTreeIndex()
+{
+	QModelIndex currentIndexTmp = m_layerTreeView->currentIndex();
+
+	if (!currentIndexTmp.isValid()) return;
+
+	LayerTreeModel* model = const_cast<LayerTreeModel*>(static_cast<const LayerTreeModel*>(currentIndexTmp.model()));
+	if (!model) return;
+
+	LayerTreeNode* node = static_cast<LayerTreeNode*>(currentIndexTmp.internalPointer());
+	if (!node || node->type() != LayerTreeNode::Type::Layer) return;
+
+	auto* layerNode = static_cast<LayerTreeLayer*>(node);
+	MapLayer* mapLayer = layerNode->mapLayer();
+
+}
+
+void HPPA::removeImageByTreeIndex()
+{
+	QModelIndex currentIndexTmp = m_layerTreeView->currentIndex();
+
+	if (!currentIndexTmp.isValid()) return;
+
+	LayerTreeModel* model = const_cast<LayerTreeModel*>(static_cast<const LayerTreeModel*>(currentIndexTmp.model()));
+	if (!model) return;
+
+	LayerTreeNode* node = static_cast<LayerTreeNode*>(currentIndexTmp.internalPointer());
+	if (!node || node->type() != LayerTreeNode::Type::Image) return;
+
+	auto* layerNode = static_cast<LayerTreeImageNode*>(node);
+	RasterImageLayer* rasterImageLayer = layerNode->imageLayer();
+	QWidget* layerWidget = nullptr;
+
+	if (rasterImageLayer && m_MapLayerStore)
+	{
+		layerWidget = m_MapLayerStore->widgetForImageLayer(rasterImageLayer);
+		m_MapLayerStore->removeImageLayer(rasterImageLayer);
+	}
+
+	if (layerWidget && m_imageViewerTabWidget)
+	{
+		const int tabIndex = m_imageViewerTabWidget->indexOf(layerWidget);
+		if (tabIndex >= 0)
+		{
+			if (m_recordFrameCounter)
+			{
+				m_recordFrameCounter->removeCounter(layerWidget);
+			}
+			m_imageViewerTabWidget->removeTab(tabIndex);
+		}
+		layerWidget->deleteLater();
+	}
+
+	LayerTreeNode* parent = node->parentNode();
+	int row = node->rowInParent();
+	LayerTreeNode* removed = model->removeNode(parent, row);
+	if (removed)
+	{
+		delete removed;
+	}
+}
+
 void HPPA::removeAllLayersInRasterGroup()
 {
     if (!m_LayerTreeModel || !m_RasterGroup) return;
@@ -1651,7 +1718,7 @@ void HPPA::onTabWidgetCurrentChanged(int index)//代码新建一个tab，会调
 	// Sync layer tree view selection with the current tab
 	if (m_MapLayerStore && m_layerTreeView && m_LayerTreeModel && m_RasterGroup)
 	{
-		MapLayer* layer = m_MapLayerStore->layerForWidget(currentWidget);
+		MapLayer* layer = m_MapLayerStore->mapLayerForWidget(currentWidget);
 		if (layer)
 		{
 			// Find the LayerTreeLayer node in m_RasterGroup that matches this layer
@@ -1671,10 +1738,9 @@ void HPPA::onTabWidgetCurrentChanged(int index)//代码新建一个tab，会调
 						m_layerTreeView->selectionModel()->blockSignals(false);
 
 						// Manually update ImageControl since we blocked the signal
-						RasterLayer* rl = qobject_cast<RasterLayer*>(layer);
+						QList<Mapcavas*> mapcavas = currentWidget->findChildren<Mapcavas*>();
-						if (rl)
+						if (!mapcavas.isEmpty()) {
-						{
+							m_ic->setActiveLayer(mapcavas[0]->imageLayer());
-							m_ic->setActiveLayer(rl);
 						}
 						break;
 					}
@@ -2546,10 +2612,17 @@ void HPPA::addLayer(const QString& baseName, const QString& filePath,bool refres
 	auto* layerNode = new LayerTreeLayer(ml);
 	LayerTreeNode* node = m_LayerTreeModel->addLayer(m_RasterGroup, layerNode);
 
+	if (m_MapLayerStore) m_MapLayerStore->addLayer(ml);
+
 	QWidget* mapcavasContainer = onCreateTab(baseName);
-	if (m_MapLayerStore) m_MapLayerStore->addLayer(ml, mapcavasContainer);
+	RasterImageLayer* rasterImageLayer = new RasterImageLayer(ml, RasterImageLayer::RendererType::Multiband);
 	QList<Mapcavas*> mapcavas = mapcavasContainer->findChildren<Mapcavas*>();
-	mapcavas[0]->setLayers(ml);
+	mapcavas[0]->setImageLayer(rasterImageLayer);
+
+	LayerTreeImageNode* imageNode = new LayerTreeImageNode(rasterImageLayer, "222");
+	LayerTreeNode* node2 = m_LayerTreeModel->addLayer(node, imageNode);
+
+	if (m_MapLayerStore) m_MapLayerStore->addImageLayer(ml, rasterImageLayer, mapcavasContainer);
 
 	if (refresh)
 	{
@@ -2585,9 +2658,6 @@ void HPPA::onLayerTreeSelectionChanged(const QItemSelection& selected, const QIt
         return;
     }
 
-    RasterLayer* rl = static_cast<RasterLayer*>(mapLayer);
-    m_ic->setActiveLayer(rl);
-
     // Also switch to the corresponding tab in the image viewer
     if (m_MapLayerStore && m_imageViewerTabWidget) {
         QWidget* widget = m_MapLayerStore->widgetForLayer(mapLayer);
@@ -2597,28 +2667,37 @@ void HPPA::onLayerTreeSelectionChanged(const QItemSelection& selected, const QIt
                 m_imageViewerTabWidget->setCurrentIndex(tabIndex);
             }
         }
+
+        // Get RasterImageLayer from the Mapcavas container
+        QList<Mapcavas*> mapcavas = widget->findChildren<Mapcavas*>();
+        if (!mapcavas.isEmpty()) {
+            m_ic->setActiveLayer(mapcavas[0]->imageLayer());
+        } else {
+            m_ic->setActiveLayer(nullptr);
+        }
+    } else {
+        m_ic->setActiveLayer(nullptr);
     }
 }
 
 void HPPA::onBandSelectionChanged(double rWave, double gWave, double bWave)
 {
-    RasterLayer* rl = m_ic->activeLayer();
+    RasterImageLayer* imageLayer = m_ic->activeLayer();
-    if (!rl) return;
+    if (!imageLayer) return;
+
+    auto params = imageLayer->multibandParams();
+    params.rWave = rWave;
+    params.gWave = gWave;
+    params.bWave = bWave;
+    imageLayer->setMultibandParams(params);
 
-    // Find the Mapcavas widget associated with this layer and re-render
     if (!m_MapLayerStore) return;
-
+    MapLayer* mapLayer = imageLayer->layer();
-    QWidget* container = m_MapLayerStore->widgetForLayer(rl);
+    QWidget* container = m_MapLayerStore->widgetForLayer(mapLayer);
     if (!container) return;
 
     QList<Mapcavas*> mapcavas = container->findChildren<Mapcavas*>();
     if (mapcavas.isEmpty()) return;
 
-    RasterLayer::RenderParams params = rl->currentRenderParams();
+    mapcavas[0]->freshmap();
-    params.rWave = rWave;
-    params.gWave = gWave;
-    params.bWave = bWave;
-    rl->setCurrentRenderParams(params);
-
-    mapcavas[0]->freshmap(params);
 }

HPPA/HPPA.h

@@ -81,6 +81,8 @@
 #include "DepthCameraWindow.h"
 #include "SingleLensReflexCameraWindow.h"
 
+#include "LayerTreeImageNode.h"
+
 #define PI 3.1415926
 
 QT_CHARTS_USE_NAMESPACE//QChartView 使用 需要加宏， 否则无法使用
@@ -375,6 +377,7 @@ public Q_SLOTS:
 		void addLayer(const QString& baseName, const QString& filePath, bool refresh);
 		void onLayerCreatedFromFile(const QString& baseName, const QString& filePath, int fileIndex);
 		void removeLayerByTreeIndex();
+		void removeImageByTreeIndex();
 		void removeAllLayersInRasterGroup();
 
 		void onLayerTreeSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected);

HPPA/HPPA.vcxproj

@@ -124,6 +124,7 @@
     <ClCompile Include="irisximeaimager.cpp" />
     <ClCompile Include="LayerTree.cpp" />
     <ClCompile Include="LayerTreeGroupNode.cpp" />
+    <ClCompile Include="LayerTreeImageNode.cpp" />
     <ClCompile Include="LayerTreeLayerNode.cpp" />
     <ClCompile Include="LayerTreeModel.cpp" />
     <ClCompile Include="LayerTreeNode.cpp" />
@@ -143,7 +144,10 @@
     <ClCompile Include="QMotorDoubleSlider.cpp" />
     <ClCompile Include="RasterDataProvider.cpp" />
     <ClCompile Include="RasterLayer.cpp" />
-    <ClCompile Include="RasterRenderer.cpp" />
+    <ClCompile Include="MultibandRasterRenderer.cpp" />
+    <ClCompile Include="RasterRendererBase.cpp" />
+    <ClCompile Include="RasterImageLayer.cpp" />
+    <ClCompile Include="SinglebandRasterRenderer.cpp" />
     <ClCompile Include="recordFrameCounter.cpp" />
     <ClCompile Include="resononImager.cpp" />
     <ClCompile Include="ResononNirImager.cpp" />
@@ -229,6 +233,7 @@
     <QtMoc Include="MapLayer.h" />
     <QtMoc Include="RasterLayer.h" />
     <QtMoc Include="MapLayerStore.h" />
+    <QtMoc Include="LayerTreeImageNode.h" />
     <ClInclude Include="LayerTreeView.h" />
     <QtMoc Include="LayerTreeViewMenuProvider.h" />
     <QtMoc Include="MapTool.h" />
@@ -237,7 +242,10 @@
     <QtMoc Include="MapTools.h" />
     <ClInclude Include="MotorWindowBase.h" />
     <ClInclude Include="RasterDataProvider.h" />
-    <ClInclude Include="RasterRenderer.h" />
+    <ClInclude Include="MultibandRasterRenderer.h" />
+    <ClInclude Include="RasterImageLayer.h" />
+    <ClInclude Include="RasterRendererBase.h" />
+    <ClInclude Include="SinglebandRasterRenderer.h" />
     <QtMoc Include="recordFrameCounter.h" />
     <QtMoc Include="setWindow.h" />
     <QtMoc Include="rgbCameraWindow.h" />

HPPA/HPPA.vcxproj.filters

@@ -160,10 +160,16 @@
     <ClCompile Include="RasterLayer.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="RasterImageLayer.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="RasterDataProvider.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
-    <ClCompile Include="RasterRenderer.cpp">
+    <ClCompile Include="MultibandRasterRenderer.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="SinglebandRasterRenderer.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
     <ClCompile Include="MapLayerStore.cpp">
@@ -220,6 +226,12 @@
     <ClCompile Include="SingleLensReflexCameraWindow.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="LayerTreeImageNode.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="RasterRendererBase.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <QtMoc Include="fileOperation.h">
@@ -360,6 +372,9 @@
     <QtMoc Include="SingleLensReflexCameraWindow.h">
       <Filter>Header Files</Filter>
     </QtMoc>
+    <QtMoc Include="LayerTreeImageNode.h">
+      <Filter>Header Files</Filter>
+    </QtMoc>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="imageProcessor.h">
@@ -395,7 +410,16 @@
     <ClInclude Include="RasterDataProvider.h">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="RasterRenderer.h">
+    <ClInclude Include="MultibandRasterRenderer.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="RasterImageLayer.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="RasterRendererBase.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="SinglebandRasterRenderer.h">
       <Filter>Header Files</Filter>
     </ClInclude>
     <ClInclude Include="LayerTreeView.h">

HPPA/ImageViewer.cpp

@@ -6,7 +6,7 @@
 #include <QPoint>
 
 #include "ImageViewer.h"
-#include "RasterLayer.h"
+#include "RasterImageLayer.h"
 #include "MapTool.h"
 
 
@@ -264,35 +264,22 @@ qreal Mapcavas::zoomDelta() const
     return m_zoomDelta;
 }
 
-// new: set associated raster layer
+// set associated raster image layer
-void Mapcavas::setLayers(RasterLayer* layer)
+void Mapcavas::setImageLayer(RasterImageLayer* layer)
 {
-    m_rasterLayer = layer;
+    m_imageLayer = layer;
 }
 
-RasterLayer* Mapcavas::rasterLayer() const
+RasterImageLayer* Mapcavas::imageLayer() const
 {
-    return m_rasterLayer;
+    return m_imageLayer;
 }
 
-// new: refresh the map by rendering using the RasterLayer's render method
 void Mapcavas::freshmap()
 {
-    if (!m_rasterLayer) return;
+    if (!m_imageLayer) return;
 
-    RasterLayer::RenderParams params = m_rasterLayer->currentRenderParams();
+    QImage img = m_imageLayer->render();
-    QImage img = m_rasterLayer->render(params);
-    if (img.isNull()) return;
-
-    QPixmap pm = QPixmap::fromImage(img);
-    SetImage(&pm);
-}
-
-void Mapcavas::freshmap(const RasterLayer::RenderParams& params)
-{
-    if (!m_rasterLayer) return;
-
-    QImage img = m_rasterLayer->render(params);
     if (img.isNull()) return;
 
     QPixmap pm = QPixmap::fromImage(img);

HPPA/ImageViewer.h

@@ -4,7 +4,8 @@
 #include "QGraphicsView"
 #include "qlabel.h"
 #include <QVector>
-#include "RasterLayer.h"
+
+class RasterImageLayer;
 
 class MapTool;
 
@@ -16,7 +17,7 @@ public:
 	Mapcavas(QWidget* pParent = NULL);
 	~Mapcavas();
 
-	
+
 	void DisplayFrameNumber(int frameNumber);
 
 
@@ -47,12 +48,11 @@ public:
 	void setZoomDelta(qreal delta);
 	qreal zoomDelta() const;
 
-	// new: set raster layer and refresh map
+	// set raster image layer and refresh map
-	void setLayers(RasterLayer* layer);
+	void setImageLayer(RasterImageLayer* layer);
 	void freshmap();
-	void freshmap(const RasterLayer::RenderParams& params);
 
-	RasterLayer* rasterLayer() const;
+	RasterImageLayer* imageLayer() const;
 
 	// MapTool management
 	void setMapTool(MapTool* tool);
@@ -65,7 +65,7 @@ private:
 	QGraphicsPixmapItem *m_GraphicsPixmapItemHandle;
 	QLabel *m_framNumberLabel;//显示实时采集到的帧数
 
-	RasterLayer* m_rasterLayer = nullptr; // associated raster layer
+	RasterImageLayer* m_imageLayer = nullptr; // associated raster image layer
 	MapTool* m_mapTool = nullptr;         // current active map tool
 
 	qreal m_translateSpeed;  // 平移速度

HPPA/LayerTreeImageNode.cpp

@@ -0,0 +1,31 @@
+#include "LayerTreeImageNode.h"
+#include "RasterImageLayer.h"
+
+LayerTreeImageNode::LayerTreeImageNode(RasterImageLayer* imageLayer,
+                                       const QString& name,
+                                       QWidget* widget,
+                                       QObject* parent)
+    : LayerTreeNode(name, parent)
+    , m_imageLayer(imageLayer)
+    , m_widget(widget)
+{
+}
+
+LayerTreeImageNode::~LayerTreeImageNode()
+{
+}
+
+LayerTreeNode::Type LayerTreeImageNode::type() const
+{
+    return Type::Image;
+}
+
+QWidget* LayerTreeImageNode::widget() const
+{
+    return m_widget;
+}
+
+void LayerTreeImageNode::setWidget(QWidget* widget)
+{
+    m_widget = widget;
+}

HPPA/LayerTreeImageNode.h

@@ -0,0 +1,30 @@
+#pragma once
+
+#include "LayerTreeNode.h"
+#include <memory>
+
+class QWidget;
+class RasterImageLayer;
+
+class LayerTreeImageNode : public LayerTreeNode
+{
+    Q_OBJECT
+public:
+    explicit LayerTreeImageNode(RasterImageLayer* imageLayer,
+                                const QString& name,
+                                QWidget* widget = nullptr,
+                                QObject* parent = nullptr);
+
+    ~LayerTreeImageNode();
+
+    Type type() const override;
+
+    RasterImageLayer* imageLayer() const { return m_imageLayer; }
+    QWidget* widget() const;
+    void setWidget(QWidget* widget);
+
+private:
+    RasterImageLayer* m_imageLayer;
+    QWidget* m_widget = nullptr;
+};
+

HPPA/LayerTreeModel.cpp

@@ -133,7 +133,7 @@ LayerTreeNode* LayerTreeModel::addGroup(LayerTreeNode* parent, const QString& na
     return g;
 }
 
-LayerTreeNode* LayerTreeModel::addLayer(LayerTreeNode* parent, LayerTreeLayer* layerNode, const QIcon& icon)
+LayerTreeNode* LayerTreeModel::addLayer(LayerTreeNode* parent, LayerTreeNode* layerNode, const QIcon& icon)
 {
     if (!parent) parent = m_tree;
     if (!layerNode) return nullptr;

HPPA/LayerTreeModel.h

@@ -34,7 +34,7 @@ public:
     LayerTreeNode* root() const;
 
     LayerTreeNode* addGroup(LayerTreeNode* parent, const QString& name, const QIcon& icon = QIcon());
-    LayerTreeNode* addLayer(LayerTreeNode* parent, LayerTreeLayer* layerNode, const QIcon& icon = QIcon());
+    LayerTreeNode* addLayer(LayerTreeNode* parent, LayerTreeNode* layerNode, const QIcon& icon = QIcon());
 
     void setCascadeCheckEnabled(bool enabled);
     bool cascadeCheckEnabled() const;

HPPA/LayerTreeViewMenuProvider.cpp

@@ -36,9 +36,15 @@ QMenu* LayerTreeViewMenuProvider::createContextMenu()
 
     if (node->type() == LayerTreeNode::Type::Layer)
     {
-        QAction* removeAction = new QAction(QStringLiteral("移除图层"), menu);
+        QAction* removeLayerAction = new QAction(QStringLiteral("移除图层"), menu);
-        connect(removeAction, &QAction::triggered, HPPA::instance(), &HPPA::removeLayerByTreeIndex);
+        connect(removeLayerAction, &QAction::triggered, HPPA::instance(), &HPPA::removeLayerByTreeIndex);
-        menu->addAction(removeAction);
+        menu->addAction(removeLayerAction);
+    }
+    else if (node->type() == LayerTreeNode::Type::Image)
+    {
+        QAction* removeImageAction = new QAction(QStringLiteral("移除图像"), menu);
+        connect(removeImageAction, &QAction::triggered, HPPA::instance(), &HPPA::removeImageByTreeIndex);
+        menu->addAction(removeImageAction);
     }
     else if (node->type() == LayerTreeNode::Type::Group)
     {

HPPA/MapLayerStore.cpp

@@ -1,43 +1,93 @@
 #include "MapLayerStore.h"
 #include "MapLayer.h"
+#include "RasterImageLayer.h"
+#include <QFileInfo>
+#include <QWidget>
 
 MapLayerStore::MapLayerStore(QObject* parent)
     : QObject(parent)
 {
-    int a = 1;
 }
 
-void MapLayerStore::addLayer(MapLayer* layer, QWidget* widget)
+void MapLayerStore::addLayer(MapLayer* layer)
 {
     if (!layer) return;
-    MapLayer* raw = layer;
+
-    m_layers.emplace_back(std::shared_ptr<MapLayer>(layer));
+    int index = (int)m_layers.size();
-    if (widget)
+    LayerEntry entry;
-        m_layerWidgets[raw] = widget;
+    entry.mapLayer.reset(layer);
-    emit layerAdded(raw);
+
+    m_layers.push_back(std::move(entry));
+    m_mapLayerIndex[layer] = index;
+
+    emit layerAdded(layer);
+}
+
+void MapLayerStore::addImageLayer(MapLayer* mapLayer, RasterImageLayer* imageLayer, QWidget* widget)
+{
+    if (!mapLayer || !imageLayer) return;
+
+    LayerEntry* entry = findLayerEntry(mapLayer);
+    if (!entry) return;
+
+    entry->imageLayers.push_back({std::unique_ptr<RasterImageLayer>(imageLayer), widget});
+    emit imageLayerAdded(imageLayer);
 }
 
 void MapLayerStore::removeLayer(MapLayer* layer)
 {
     if (!layer) return;
-    for (auto it = m_layers.begin(); it != m_layers.end(); ++it) {
+
-        if (it->get() == layer) {
+    auto it = m_mapLayerIndex.find(layer);
-            emit layerAboutToBeRemoved(layer);
+    if (it == m_mapLayerIndex.end()) return;
-            m_layers.erase(it);
+
-            m_layerWidgets.erase(layer);
+    int index = it->second;
-            return;
+    if (index < 0 || index >= (int)m_layers.size()) return;
+
+    LayerEntry& entry = m_layers[index];
+
+    // Delete all associated widgets
+    for (auto& imgEntry : entry.imageLayers) {
+        if (imgEntry.widget) {
+            delete imgEntry.widget;
+        }
+    }
+    entry.imageLayers.clear();
+
+    emit layerAboutToBeRemoved(layer);
+
+    m_layers.erase(m_layers.begin() + index);//?????????????????????
+    m_mapLayerIndex.erase(it);
+
+    // Rebuild index for layers after removed one
+    for (int i = index; i < (int)m_layers.size(); ++i) {
+        m_mapLayerIndex[m_layers[i].mapLayer.get()] = i;
+    }
+}
+
+void MapLayerStore::removeImageLayer(RasterImageLayer* imageLayer)//可以优化：RasterImageLayer包含一个指向所属MapLayer的指针，这样就不需要遍历所有图层来找到它了
+{
+    if (!imageLayer) return;
+
+    for (auto& entry : m_layers) {
+        for (auto it = entry.imageLayers.begin(); it != entry.imageLayers.end(); ++it) {
+            if (it->imageLayer.get() == imageLayer) {
+                emit imageLayerAboutToBeRemoved(imageLayer);
+                if (it->widget) {
+					//delete it->widget;//在调用此函数的地方已经删除了widget了，这里不需要再删除一次了
+                }
+                entry.imageLayers.erase(it);
+                return;
+            }
         }
     }
 }
 
 void MapLayerStore::removeLayerByName(const QString& name)
 {
-    for (auto it = m_layers.begin(); it != m_layers.end(); ++it) {
+    for (auto& entry : m_layers) {
-        if ((*it)->name() == name) {
+        if (entry.mapLayer->name() == name) {
-            MapLayer* raw = it->get();
+            removeLayer(entry.mapLayer.get());
-            emit layerAboutToBeRemoved(raw);
-            m_layers.erase(it);
-            m_layerWidgets.erase(raw);
             return;
         }
     }
@@ -48,12 +98,12 @@ bool MapLayerStore::containsLayer(const QString& url, bool isAbsolutePath) const
     QFileInfo fi(url);
     QString fileName = fi.completeBaseName();
 
-    if (!isAbsolutePath)
+    if (!isAbsolutePath) {
-    {
         return getLayer(fileName) != nullptr;
     }
-    for (const auto& l : m_layers) {
+
-        if (l->dataPath() == url)
+    for (const auto& entry : m_layers) {
+        if (entry.mapLayer->dataPath() == url)
             return true;
     }
     return false;
@@ -61,16 +111,18 @@ bool MapLayerStore::containsLayer(const QString& url, bool isAbsolutePath) const
 
 MapLayer* MapLayerStore::getLayer(const QString& name) const
 {
-    for (const auto& l : m_layers) {
+    for (const auto& entry : m_layers) {
-        if (l->name() == name) return l.get();
+        if (entry.mapLayer->name() == name)
+            return entry.mapLayer.get();
     }
     return nullptr;
 }
 
 MapLayer* MapLayerStore::getLayerAt(int index) const
 {
-    if (index < 0 || index >= (int)m_layers.size()) return nullptr;
+    if (index < 0 || index >= (int)m_layers.size())
-    return m_layers[index].get();
+        return nullptr;
+    return m_layers[index].mapLayer.get();
 }
 
 int MapLayerStore::layerCount() const
@@ -78,31 +130,129 @@ int MapLayerStore::layerCount() const
     return (int)m_layers.size();
 }
 
+RasterImageLayer* MapLayerStore::getImageLayer(MapLayer* mapLayer, int index) const
+{
+    const LayerEntry* entry = findLayerEntry(mapLayer);
+    if (!entry) return nullptr;
+
+    if (index < 0 || index >= (int)entry->imageLayers.size())
+        return nullptr;
+
+    return entry->imageLayers[index].imageLayer.get();
+}
+
+int MapLayerStore::imageLayerCount(MapLayer* mapLayer) const
+{
+    const LayerEntry* entry = findLayerEntry(mapLayer);
+    if (!entry) return 0;
+    return (int)entry->imageLayers.size();
+}
+
+std::vector<RasterImageLayer*> MapLayerStore::getAllImageLayers() const
+{
+    std::vector<RasterImageLayer*> result;
+    for (const auto& entry : m_layers) {
+        for (const auto& imgEntry : entry.imageLayers) {
+            if (imgEntry.imageLayer)
+                result.push_back(imgEntry.imageLayer.get());
+        }
+    }
+    return result;
+}
+
+QWidget* MapLayerStore::widgetForImageLayer(RasterImageLayer* imageLayer) const
+{
+    for (const auto& entry : m_layers) {
+        for (const auto& imgEntry : entry.imageLayers) {
+            if (imgEntry.imageLayer.get() == imageLayer)
+                return imgEntry.widget;
+        }
+    }
+    return nullptr;
+}
+
 QWidget* MapLayerStore::widgetForLayer(MapLayer* layer) const
 {
-    auto it = m_layerWidgets.find(layer);
+    const LayerEntry* entry = findLayerEntry(layer);
-    if (it == m_layerWidgets.end()) return nullptr;
+    if (!entry || entry->imageLayers.empty())
-    return it->second;
+        return nullptr;
+    return entry->imageLayers.front().widget;
 }
 
 QWidget* MapLayerStore::widgetForLayer(const QString& absolutePath) const
 {
-    for (const auto& sp : m_layers) {
+    for (const auto& entry : m_layers) {
-        if (sp && sp->dataPath() == absolutePath) {
+        if (entry.mapLayer->dataPath() == absolutePath) {
-            MapLayer* raw = sp.get();
+            if (!entry.imageLayers.empty())
-            auto it = m_layerWidgets.find(raw);
+                return entry.imageLayers.front().widget;
-            if (it != m_layerWidgets.end()) return it->second;
             return nullptr;
         }
     }
     return nullptr;
 }
 
-MapLayer* MapLayerStore::layerForWidget(QWidget* widget) const
+std::vector<QWidget*> MapLayerStore::widgetsForMapLayer(MapLayer* mapLayer) const
 {
-    if (!widget) return nullptr;
+    std::vector<QWidget*> result;
-    for (const auto& kv : m_layerWidgets) {
+    const LayerEntry* entry = findLayerEntry(mapLayer);
-        if (kv.second == widget) return kv.first;
+    if (!entry) return result;
+
+    for (const auto& imgEntry : entry->imageLayers) {
+        if (imgEntry.widget)
+            result.push_back(imgEntry.widget);
+    }
+    return result;
+}
+
+MapLayer* MapLayerStore::mapLayerForImageLayer(RasterImageLayer* imageLayer) const
+{
+    for (const auto& entry : m_layers) {
+        for (const auto& imgEntry : entry.imageLayers) {
+            if (imgEntry.imageLayer.get() == imageLayer)
+                return entry.mapLayer.get();
+        }
     }
     return nullptr;
 }
+
+MapLayer* MapLayerStore::mapLayerForWidget(QWidget* widget) const
+{
+    if (!widget) return nullptr;
+    for (const auto& entry : m_layers) {
+        for (const auto& imgEntry : entry.imageLayers) {
+            if (imgEntry.widget == widget)
+                return entry.mapLayer.get();
+        }
+    }
+    return nullptr;
+}
+
+RasterImageLayer* MapLayerStore::imageLayerForWidget(QWidget* widget) const
+{
+    if (!widget) return nullptr;
+    for (const auto& entry : m_layers) {
+        for (const auto& imgEntry : entry.imageLayers) {
+            if (imgEntry.widget == widget)
+                return imgEntry.imageLayer.get();
+        }
+    }
+    return nullptr;
+}
+
+MapLayerStore::LayerEntry* MapLayerStore::findLayerEntry(MapLayer* mapLayer)
+{
+    auto it = m_mapLayerIndex.find(mapLayer);
+    if (it == m_mapLayerIndex.end()) return nullptr;
+    int index = it->second;
+    if (index < 0 || index >= (int)m_layers.size()) return nullptr;
+    return &m_layers[index];
+}
+
+const MapLayerStore::LayerEntry* MapLayerStore::findLayerEntry(MapLayer* mapLayer) const
+{
+    auto it = m_mapLayerIndex.find(mapLayer);
+    if (it == m_mapLayerIndex.end()) return nullptr;
+    int index = it->second;
+    if (index < 0 || index >= (int)m_layers.size()) return nullptr;
+    return &m_layers[index];
+}

HPPA/MapLayerStore.h

@@ -2,53 +2,70 @@
 
 #include <QObject>
 #include <QString>
-#include <QFileInfo> 
 #include <vector>
 #include <memory>
 #include <unordered_map>
 
 class MapLayer;
+class RasterImageLayer;
 class QWidget;
 
 class MapLayerStore : public QObject
 {
     Q_OBJECT
+
+    struct ImageLayerEntry {
+        std::unique_ptr<RasterImageLayer> imageLayer;
+        QWidget* widget;
+    };
+
+    struct LayerEntry {
+        std::unique_ptr<MapLayer> mapLayer;
+        std::vector<ImageLayerEntry> imageLayers;
+    };
+
 public:
     explicit MapLayerStore(QObject* parent = nullptr);
     ~MapLayerStore() override = default;
 
-    // Take ownership of the layer (store will own and manage its lifetime)
+    // Layer management
-    // Now also accept the associated QWidget so UI widget can be retrieved by layer pointer
+    void addLayer(MapLayer* layer);
-    void addLayer(MapLayer* layer, QWidget* widget = nullptr);
-
-    bool containsLayer(const QString& url, bool isAbsolutePath = true) const;
-
-    // Remove by pointer or by name. Destruction happens when removed from store.
-public slots:
     void removeLayer(MapLayer* layer);
     void removeLayerByName(const QString& name);
+    bool containsLayer(const QString& url, bool isAbsolutePath = true) const;
 
-    // Queries
     MapLayer* getLayer(const QString& name) const;
     MapLayer* getLayerAt(int index) const;
     int layerCount() const;
 
-    // Get associated widget for a layer (or nullptr if none)
+    // ImageLayer management
-    QWidget* widgetForLayer(MapLayer* layer) const;
+    void addImageLayer(MapLayer* mapLayer, RasterImageLayer* imageLayer, QWidget* widget);
-    // Get associated widget by layer absolute data path
+    void removeImageLayer(RasterImageLayer* imageLayer);
-    QWidget* widgetForLayer(const QString& absolutePath) const;
+    RasterImageLayer* getImageLayer(MapLayer* mapLayer, int index) const;
+    int imageLayerCount(MapLayer* mapLayer) const;
+    std::vector<RasterImageLayer*> getAllImageLayers() const;
 
-    // Reverse lookup: find the MapLayer associated with a given widget (or nullptr)
+    // Widget queries
-    MapLayer* layerForWidget(QWidget* widget) const;
+    QWidget* widgetForImageLayer(RasterImageLayer* imageLayer) const;
+    QWidget* widgetForLayer(MapLayer* layer) const;
+    QWidget* widgetForLayer(const QString& absolutePath) const;
+    std::vector<QWidget*> widgetsForMapLayer(MapLayer* mapLayer) const;
+
+    // Reverse lookups
+    MapLayer* mapLayerForImageLayer(RasterImageLayer* imageLayer) const;
+    MapLayer* mapLayerForWidget(QWidget* widget) const;
+    RasterImageLayer* imageLayerForWidget(QWidget* widget) const;
 
 signals:
     void layerAdded(MapLayer* layer);
-    // Emitted just before the layer is destroyed/removed from store
     void layerAboutToBeRemoved(MapLayer* layer);
+    void imageLayerAdded(RasterImageLayer* imageLayer);
+    void imageLayerAboutToBeRemoved(RasterImageLayer* imageLayer);
 
 private:
-    // store shared ownership so other parts can keep raw pointers safely (or use QPointer)
+    LayerEntry* findLayerEntry(MapLayer* mapLayer);
-    std::vector<std::shared_ptr<MapLayer>> m_layers;
+    const LayerEntry* findLayerEntry(MapLayer* mapLayer) const;
-    // mapping from raw MapLayer pointer to associated QWidget*
+
-    std::unordered_map<MapLayer*, QWidget*> m_layerWidgets;
+    std::vector<LayerEntry> m_layers;
+    std::unordered_map<MapLayer*, int> m_mapLayerIndex;
 };

HPPA/MapToolSpectral.cpp

@@ -41,10 +41,10 @@ void MapToolSpectral::canvasMousePressEvent(QMouseEvent* e)
     const int x = static_cast<int>(std::floor(scenePt.x()));
     const int y = static_cast<int>(std::floor(scenePt.y()));
 
-    RasterLayer* rl = canvas()->rasterLayer();
+    auto* imageLayer = canvas()->imageLayer();
+    RasterLayer* rl = imageLayer ? imageLayer->layer() : nullptr;
     if (rl && rl->isValidPixel(x, y))
     {
-        // Place crosshair at pixel center
         canvas()->updateCrosshair(x + 0.5, y + 0.5);
 
         QVector<double> wavelengths;

HPPA/MapToolSpectral.h

@@ -4,6 +4,8 @@
 #include "MapTool.h"
 #include <QVector>
 
+#include "RasterImageLayer.h"
+
 class QGraphicsLineItem;
 
 class MapToolSpectral : public MapTool

HPPA/MultibandRasterRenderer.cpp

@@ -1,14 +1,14 @@
-#include "RasterRenderer.h"
+#include "MultibandRasterRenderer.h"
 #include "RasterDataProvider.h"
 #include <QDebug>
 #include <algorithm>
 
-RasterRenderer::RasterRenderer(RasterDataProvider* provider)
+MultibandRasterRenderer::MultibandRasterRenderer(RasterDataProvider* provider)
-    : m_provider(provider)
+    : RasterRendererBase(provider)
 {
 }
 
-void RasterRenderer::stretchTo8bit(const std::vector<float>& in, std::vector<unsigned char>& out, float minVal, float maxVal)
+void MultibandRasterRenderer::stretchTo8bit(const std::vector<float>& in, std::vector<unsigned char>& out, float minVal, float maxVal)
 {
     size_t n = in.size();
     out.resize(n);
@@ -24,7 +24,7 @@ void RasterRenderer::stretchTo8bit(const std::vector<float>& in, std::vector<uns
     }
 }
 
-QImage RasterRenderer::render(const Params& params)
+QImage MultibandRasterRenderer::render()
 {
     if (!m_provider) return QImage();
     int bands = m_provider->bandCount();
@@ -38,7 +38,7 @@ QImage RasterRenderer::render(const Params& params)
     auto chooseBandIndexForWave = [&](double wave)->int {
         if (wavelengths.empty()) {
             // fallback: select R,G,B as first three bands
-            if (bands >= 3) return (wave==params.rWave?0:(wave==params.gWave?1:2));
+            if (bands >= 3) return (wave==m_params.rWave?0:(wave==m_params.gWave?1:2));
             if (bands >= 1) return 0;
             return -1;
         }
@@ -53,9 +53,9 @@ QImage RasterRenderer::render(const Params& params)
         return std::min(2, bands-1);
     };
 
-    int rIdx = chooseBandIndexForWave(params.rWave);
+    int rIdx = chooseBandIndexForWave(m_params.rWave);
-    int gIdx = chooseBandIndexForWave(params.gWave);
+    int gIdx = chooseBandIndexForWave(m_params.gWave);
-    int bIdx = chooseBandIndexForWave(params.bWave);
+    int bIdx = chooseBandIndexForWave(m_params.bWave);
 
     std::vector<float> rbuf, gbuf, bbuf;
     if (rIdx >= 0) m_provider->readBandAsFloat(rIdx, rbuf);
@@ -63,8 +63,8 @@ QImage RasterRenderer::render(const Params& params)
     if (bIdx >= 0) m_provider->readBandAsFloat(bIdx, bbuf);
 
     std::vector<unsigned char> r8, g8, b8;
-    float minV = static_cast<float>(params.minValue);
+    float minV = static_cast<float>(m_params.minValue);
-    float maxV = static_cast<float>(params.maxValue);
+    float maxV = static_cast<float>(m_params.maxValue);
     if (!rbuf.empty()) stretchTo8bit(rbuf, r8, minV, maxV);
     if (!gbuf.empty()) stretchTo8bit(gbuf, g8, minV, maxV);
     if (!bbuf.empty()) stretchTo8bit(bbuf, b8, minV, maxV);

HPPA/MultibandRasterRenderer.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include "RasterRendererBase.h"
+#include "RasterRenderParams.h"
+#include <vector>
+#include <memory>
+
+class RasterDataProvider;
+
+class MultibandRasterRenderer : public RasterRendererBase
+{
+public:
+    explicit MultibandRasterRenderer(RasterDataProvider* provider);
+
+    QImage render() override;
+
+    // Parameter access
+    MultibandRenderParams params() const { return m_params; }
+    void setParams(const MultibandRenderParams& params) { m_params = params; }
+
+private:
+    MultibandRenderParams m_params;
+
+    // Helper to map float buffer to 8-bit with min/max stretch
+    static void stretchTo8bit(const std::vector<float>& in, std::vector<unsigned char>& out, float minVal, float maxVal);
+};

HPPA/RasterImageLayer.cpp

@@ -0,0 +1,66 @@
+#include "RasterImageLayer.h"
+#include "RasterLayer.h"
+#include "RasterDataProvider.h"
+#include "RasterRendererBase.h"
+#include "MultibandRasterRenderer.h"
+#include "SinglebandRasterRenderer.h"
+
+RasterImageLayer::RasterImageLayer(RasterLayer* layer, RendererType type)
+    : m_layer(layer)
+    , m_rendererType(type)
+{
+    if (!m_layer) return;
+
+    RasterDataProvider* provider = nullptr;
+    if (m_layer->dataProvider()) {
+        provider = m_layer->dataProvider();
+    } else if (m_layer->openDataProvider()) {
+        provider = m_layer->dataProvider();
+    }
+
+    if (!provider) return;
+
+    switch (type) {
+    case RendererType::Multiband: {
+        auto* multiRenderer = new MultibandRasterRenderer(provider);
+        m_renderer.reset(multiRenderer);
+        multiRenderer->setParams(m_multibandParams);
+        break;
+    }
+    case RendererType::Singleband: {
+        auto* singleRenderer = new SinglebandRasterRenderer(provider);
+        m_renderer.reset(singleRenderer);
+        singleRenderer->setParams(m_singlebandParams);
+        break;
+    }
+    }
+}
+
+RasterImageLayer::~RasterImageLayer()
+{
+    m_renderer.reset();
+}
+
+QImage RasterImageLayer::render()
+{
+    if (!m_renderer) return QImage();
+    return m_renderer->render();
+}
+
+void RasterImageLayer::setMultibandParams(const MultibandRenderParams& params)
+{
+    m_multibandParams = params;
+    if (m_rendererType == RendererType::Multiband) {
+        auto* r = static_cast<MultibandRasterRenderer*>(m_renderer.get());
+        r->setParams(params);
+    }
+}
+
+void RasterImageLayer::setSinglebandParams(const SinglebandRenderParams& params)
+{
+    m_singlebandParams = params;
+    if (m_rendererType == RendererType::Singleband) {
+        auto* r = static_cast<SinglebandRasterRenderer*>(m_renderer.get());
+        r->setParams(params);
+    }
+}

HPPA/RasterImageLayer.h

@@ -0,0 +1,44 @@
+#pragma once
+
+#include <memory>
+#include <QImage>
+
+#include "RasterRendererBase.h"
+#include "RasterRenderParams.h"
+
+class RasterLayer;
+class RasterRendererBase;
+class MultibandRasterRenderer;
+class SinglebandRasterRenderer;
+
+class RasterImageLayer
+{
+public:
+    enum class RendererType {
+        Multiband,
+        Singleband
+    };
+
+    RasterImageLayer(RasterLayer* layer, RendererType type);
+    ~RasterImageLayer();
+
+    QImage render();
+
+    RasterLayer* layer() const { return m_layer; }
+    RasterRendererBase* renderer() const { return m_renderer.get(); }
+    RendererType rendererType() const { return m_rendererType; }
+
+    // Type-safe params access
+    MultibandRenderParams multibandParams() const { return m_multibandParams; }
+    SinglebandRenderParams singlebandParams() const { return m_singlebandParams; }
+
+    void setMultibandParams(const MultibandRenderParams& params);
+    void setSinglebandParams(const SinglebandRenderParams& params);
+
+private:
+    RasterLayer* m_layer;
+    RendererType m_rendererType;
+    std::unique_ptr<RasterRendererBase> m_renderer;
+    MultibandRenderParams m_multibandParams;
+    SinglebandRenderParams m_singlebandParams;
+};

HPPA/RasterLayer.cpp

@@ -1,21 +1,18 @@
 #include "RasterLayer.h"
 #include "RasterDataProvider.h"
-#include "RasterRenderer.h"
-#include <algorithm>
 
 RasterLayer::RasterLayer(const QString& name, const QString& uri)
     : MapLayer(name, uri)
 {
-    // lazy creation
 }
 
 RasterLayer::~RasterLayer()
 {
 }
 
-MapLayer::LayerType RasterLayer::layerType() const 
+MapLayer::LayerType RasterLayer::layerType() const
-{ 
+{
-    return MapLayer::LayerType::Raster; 
+    return MapLayer::LayerType::Raster;
 }
 
 RasterDataProvider* RasterLayer::dataProvider() const
@@ -23,18 +20,11 @@ RasterDataProvider* RasterLayer::dataProvider() const
     return m_provider ? m_provider.get() : nullptr;
 }
 
-RasterRenderer* RasterLayer::renderer() const
-{
-    return m_renderer ? m_renderer.get() : nullptr;
-}
-
 bool RasterLayer::openDataProvider()
 {
     if (!m_provider) m_provider = std::make_unique<RasterDataProvider>(dataPath());
     if (!m_provider) return false;
-    bool ok = m_provider->open();
+    return m_provider->open();
-    if (ok && !m_renderer) m_renderer = std::make_unique<RasterRenderer>(m_provider.get());
-    return ok;
 }
 
 bool RasterLayer::isValidPixel(int x, int y)
@@ -71,31 +61,6 @@ bool RasterLayer::readPixelSpectrum(int x, int y, QVector<double>& wavelengths,
     return true;
 }
 
-QImage RasterLayer::render(const RenderParams& params)
-{
-    if (!m_provider) {
-        if (!openDataProvider()) return QImage();
-    }
-    if (!m_renderer) m_renderer = std::make_unique<RasterRenderer>(m_provider.get());
-    RasterRenderer::Params p;
-    p.rWave = params.rWave;
-    p.gWave = params.gWave;
-    p.bWave = params.bWave;
-    p.minValue = params.minValue;
-    p.maxValue = params.maxValue;
-    return m_renderer->render(p);
-}
-
-RasterLayer::RenderParams RasterLayer::currentRenderParams() const
-{
-    return m_currentParams;
-}
-
-void RasterLayer::setCurrentRenderParams(const RenderParams& params)
-{
-    m_currentParams = params;
-}
-
 bool RasterLayer::wavelengthRange(double& minWave, double& maxWave) const
 {
     auto wl = bandWavelengths();
@@ -108,7 +73,6 @@ bool RasterLayer::wavelengthRange(double& minWave, double& maxWave) const
 std::vector<double> RasterLayer::bandWavelengths() const
 {
     if (!m_provider) {
-        // need to open provider to read wavelengths - cast away const for lazy init
         auto* self = const_cast<RasterLayer*>(this);
         if (!self->openDataProvider()) return {};
     }

HPPA/RasterLayer.h

@@ -2,11 +2,10 @@
 
 #include "MapLayer.h"
 #include <memory>
-#include <QImage>
 #include <QVector>
+#include <vector>
 
 class RasterDataProvider;
-class RasterRenderer;
 
 class RasterLayer : public MapLayer
 {
@@ -17,9 +16,8 @@ public:
 
     LayerType layerType() const override;
 
-    // Access provider/renderer
+    // Access provider
     RasterDataProvider* dataProvider() const;
-    RasterRenderer* renderer() const;
 
     // Create or open provider based on this layer's uri
     bool openDataProvider();
@@ -27,29 +25,12 @@ public:
     bool isValidPixel(int x, int y);
     bool readPixelSpectrum(int x, int y, QVector<double>& wavelengths, QVector<double>& spectrum);
 
-    struct RenderParams {
-        double rWave = 665.0; // default wavelengths (nm)
-        double gWave = 560.0;
-        double bWave = 490.0;
-        double minValue = 0.0; // optional stretch
-        double maxValue = 4095.0;
-    };
-
-    // Render the raster using current provider and renderer. Returns an empty QImage on failure.
-    QImage render(const RenderParams& params);
-
-    // Current render params stored per layer
-    RenderParams currentRenderParams() const;
-    void setCurrentRenderParams(const RenderParams& params);
-
     // Get wavelength range from data provider (min, max). Returns false if unavailable.
     bool wavelengthRange(double& minWave, double& maxWave) const;
 
     // Get all band wavelengths
     std::vector<double> bandWavelengths() const;
 
-private:
+protected:
     std::unique_ptr<RasterDataProvider> m_provider;
-    std::unique_ptr<RasterRenderer> m_renderer;
-    RenderParams m_currentParams;
 };

HPPA/RasterRenderParams.h

@@ -0,0 +1,19 @@
+#pragma once
+
+// Common base struct for all render parameters
+struct RasterRenderParamsBase {
+    double minValue = 0.0;
+    double maxValue = 255.0;
+};
+
+// Parameters for multiband rendering (RGB with wavelengths)
+struct MultibandRenderParams : RasterRenderParamsBase {
+    double rWave = 665.0;
+    double gWave = 560.0;
+    double bWave = 490.0;
+};
+
+// Parameters for singleband rendering (wavelength)
+struct SinglebandRenderParams : RasterRenderParamsBase {
+    double wavelength = 550.0;
+};

HPPA/RasterRenderer.h

@@ -1,29 +0,0 @@
-#pragma once
-
-#include <QImage>
-#include <vector>
-
-class RasterDataProvider;
-
-class RasterRenderer
-{
-public:
-    struct Params {
-        double rWave = 665.0;
-        double gWave = 560.0;
-        double bWave = 490.0;
-        double minValue = 0.0;
-        double maxValue = 255.0;
-    };
-
-    explicit RasterRenderer(RasterDataProvider* provider);
-
-    // Render to an 8-bit RGB image. Returns empty image on failure.
-    QImage render(const Params& params);
-
-private:
-    RasterDataProvider* m_provider;
-
-    // helper to map float buffer to 8-bit with min/max stretch
-    static void stretchTo8bit(const std::vector<float>& in, std::vector<unsigned char>& out, float minVal, float maxVal);
-};

HPPA/RasterRendererBase.cpp

@@ -0,0 +1,6 @@
+#include "RasterRendererBase.h"
+
+RasterRendererBase::RasterRendererBase(RasterDataProvider* provider)
+	: m_provider(provider)
+{
+}

HPPA/RasterRendererBase.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include <QImage>
+#include <memory>
+
+class RasterDataProvider;
+
+class RasterRendererBase
+{
+public:
+    //struct Params {
+    //    virtual ~Params() = default;
+    //};
+
+    virtual ~RasterRendererBase() = default;
+
+    virtual QImage render() = 0;
+
+    RasterDataProvider* dataProvider() const { return m_provider; }
+
+protected:
+    explicit RasterRendererBase(RasterDataProvider* provider);
+
+    RasterDataProvider* m_provider = nullptr;
+};

HPPA/SinglebandRasterRenderer.cpp

@@ -0,0 +1,85 @@
+#include "SinglebandRasterRenderer.h"
+#include "RasterDataProvider.h"
+#include <algorithm>
+
+SinglebandRasterRenderer::SinglebandRasterRenderer(RasterDataProvider* provider)
+    : RasterRendererBase(provider)
+{
+}
+
+void SinglebandRasterRenderer::stretchTo8bit(const std::vector<float>& in, std::vector<unsigned char>& out, float minVal, float maxVal)
+{
+    size_t n = in.size();
+    out.resize(n);
+    if (maxVal <= minVal) {
+        std::fill(out.begin(), out.end(), 0);
+        return;
+    }
+    float denom = 1.0f / (maxVal - minVal);
+    for (size_t i = 0; i < n; ++i) {
+        float v = (in[i] - minVal) * denom;
+        v = std::min(std::max(v, 0.0f), 1.0f);
+        out[i] = static_cast<unsigned char>(v * 255.0f);
+    }
+}
+
+int SinglebandRasterRenderer::nearestBandIndex(double wave) const
+{
+    if (!m_provider) return -1;
+
+    int bands = m_provider->bandCount();
+    if (bands <= 0) return -1;
+
+    std::vector<double> wavelengths = m_provider->bandWavelengths();
+    if (wavelengths.empty()) {
+        // No wavelengths available, fallback to first band
+        return 0;
+    }
+
+    int best = -1;
+    double bestDiff = 1e12;
+    for (int i = 0; i < (int)wavelengths.size(); ++i) {
+        if (wavelengths[i] < 0) continue;
+        double d = std::abs(wavelengths[i] - wave);
+        if (d < bestDiff) {
+            bestDiff = d;
+            best = i;
+        }
+    }
+
+    return (best >= 0) ? best : 0;
+}
+
+QImage SinglebandRasterRenderer::render()
+{
+    if (!m_provider) return QImage();
+
+    int w = m_provider->width();
+    int h = m_provider->height();
+    if (w <= 0 || h <= 0) return QImage();
+
+    int bandIdx = nearestBandIndex(m_params.wavelength);
+    if (bandIdx < 0 || bandIdx >= m_provider->bandCount()) {
+        bandIdx = 0;
+    }
+
+    std::vector<float> buf;
+    m_provider->readBandAsFloat(bandIdx, buf);
+
+    std::vector<unsigned char> gray8;
+    float minV = static_cast<float>(m_params.minValue);
+    float maxV = static_cast<float>(m_params.maxValue);
+    if (!buf.empty()) {
+        stretchTo8bit(buf, gray8, minV, maxV);
+    }
+
+    QImage out(w, h, QImage::Format_Grayscale8);
+    for (int y = 0; y < h; ++y) {
+        unsigned char* scan = out.scanLine(y);
+        for (int x = 0; x < w; ++x) {
+            int idx = y * w + x;
+            scan[x] = (gray8.size() > (size_t)idx) ? gray8[idx] : 0;
+        }
+    }
+    return out;
+}

HPPA/SinglebandRasterRenderer.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#include "RasterRendererBase.h"
+#include "RasterRenderParams.h"
+#include <vector>
+
+class RasterDataProvider;
+
+class SinglebandRasterRenderer : public RasterRendererBase
+{
+public:
+    explicit SinglebandRasterRenderer(RasterDataProvider* provider);
+
+    QImage render() override;
+
+    // Parameter access
+    SinglebandRenderParams params() const { return m_params; }
+    void setParams(const SinglebandRenderParams& params) { m_params = params; }
+
+private:
+    SinglebandRenderParams m_params;
+
+    int nearestBandIndex(double wave) const;
+
+    // Helper to map float buffer to 8-bit with min/max stretch
+    static void stretchTo8bit(const std::vector<float>& in, std::vector<unsigned char>& out, float minVal, float maxVal);
+};

HPPA/imageControl.cpp

@@ -1,5 +1,5 @@
 #include "imageControl.h"
-#include "RasterLayer.h"
+#include "RasterImageLayer.h"
 #include <algorithm>
 #include <cmath>
 
@@ -99,7 +99,7 @@ ImageControl::~ImageControl()
 {
 }
 
-void ImageControl::setActiveLayer(RasterLayer* layer)
+void ImageControl::setActiveLayer(RasterImageLayer* layer)
 {
 	m_activeLayer = layer;
 
@@ -110,8 +110,8 @@ void ImageControl::setActiveLayer(RasterLayer* layer)
 	}
 	setEnabled(true);
 
-	// Get band wavelengths from the layer's header
+	// Get band wavelengths from the underlying RasterLayer's header
-	m_wavelengths = layer->bandWavelengths();
+	m_wavelengths = layer->layer()->bandWavelengths();
 	std::sort(m_wavelengths.begin(), m_wavelengths.end());
 
 	if (m_wavelengths.empty()) {
@@ -150,8 +150,8 @@ void ImageControl::setActiveLayer(RasterLayer* layer)
 	ui.sliderBlue->setMinimum(0);
 	ui.sliderBlue->setMaximum(maxIdx);
 
-	// Set current values from layer's render params
+	// Set current values from layer's render params (multiband)
-	auto params = layer->currentRenderParams();
+	auto params = layer->multibandParams();
 
 	int rIdx = nearestBandIndex(params.rWave);
 	int gIdx = nearestBandIndex(params.gWave);
@@ -168,7 +168,7 @@ void ImageControl::setActiveLayer(RasterLayer* layer)
 	blockAllSignals(false);
 }
 
-RasterLayer* ImageControl::activeLayer() const
+RasterImageLayer* ImageControl::activeLayer() const
 {
 	return m_activeLayer;
 }
@@ -326,13 +326,13 @@ void ImageControl::emitBandChange()
 	double g = ui.spinGreen->value();
 	double b = ui.spinBlue->value();
 
-	// Update active layer's stored render params
+	// Update active layer's stored render params (multiband)
 	if (m_activeLayer) {
-		auto params = m_activeLayer->currentRenderParams();
+		auto params = m_activeLayer->multibandParams();
 		params.rWave = r;
 		params.gWave = g;
 		params.bWave = b;
-		m_activeLayer->setCurrentRenderParams(params);
+		m_activeLayer->setMultibandParams(params);
 	}
 
 	emit bandSelectionChanged(r, g, b);

HPPA/imageControl.h

@@ -6,9 +6,10 @@
 #include <QNetworkAccessManager>
 #include <vector>
 
+#include "RasterLayer.h"
 #include "ui_imgControl.h"
 
-class RasterLayer;
+class RasterImageLayer;
 
 class ImageControl : public QDialog
 {
@@ -18,9 +19,9 @@ public:
 	ImageControl(QWidget* parent = nullptr);
 	~ImageControl();
 
-	// Populate controls from a RasterLayer's wavelength info and current render params
+	// Populate controls from a RasterImageLayer's wavelength info and current render params
-	void setActiveLayer(RasterLayer* layer);
+	void setActiveLayer(RasterImageLayer* layer);
-	RasterLayer* activeLayer() const;
+	RasterImageLayer* activeLayer() const;
 
 public Q_SLOTS:
 
@@ -62,7 +63,7 @@ private:
 	void setControlsToBandIndex(QDoubleSpinBox* spin, QSlider* slider, int idx);
 
 	Ui::ImageControl ui;
-	RasterLayer* m_activeLayer = nullptr;
+	RasterImageLayer* m_activeLayer = nullptr;
 	double m_minWave = 374.5;
 	double m_maxWave = 948.1;
 	std::vector<double> m_wavelengths; // band wavelengths from header