implement delete button per blueprint

src/ui/BlueprintPanel.cpp

@@ -23,7 +23,6 @@ BlueprintPanel::BlueprintPanel(Simulation* sim, const GameConfig* config, QWidge
     , m_sim(sim)
     , m_config(config)
     , m_currentBlocks(0)
-    , m_deleteMode(false)
     , m_activeIndex(-1)
 {
     QVBoxLayout* layout = new QVBoxLayout(this);
@@ -35,11 +34,6 @@ BlueprintPanel::BlueprintPanel(Simulation* sim, const GameConfig* config, QWidge
     m_createBtn->setEnabled(false);
     layout->addWidget(m_createBtn);
 
-    m_deleteBtn = new QPushButton("Delete Blueprint", this);
-    m_deleteBtn->setFixedHeight(48);
-    m_deleteBtn->setCheckable(true);
-    layout->addWidget(m_deleteBtn);
-
     QScrollArea* scrollArea = new QScrollArea(this);
     scrollArea->setWidgetResizable(true);
     scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
@@ -54,7 +48,6 @@ BlueprintPanel::BlueprintPanel(Simulation* sim, const GameConfig* config, QWidge
     layout->addWidget(scrollArea, 1);
 
     connect(m_createBtn, &QPushButton::clicked, this, &BlueprintPanel::onCreateClicked);
-    connect(m_deleteBtn, &QPushButton::clicked, this, &BlueprintPanel::onDeleteClicked);
 
     QHBoxLayout* ioLayout = new QHBoxLayout();
     m_saveBtn = new QPushButton("Save", this);
@@ -108,39 +101,25 @@ void BlueprintPanel::onCreateClicked()
     rebuildButtons();
 }
 
-void BlueprintPanel::onDeleteClicked()
+void BlueprintPanel::onDeleteBlueprintClicked(int index)
 {
-    if (!m_deleteMode)
+    if (m_activeIndex == index)
     {
-        m_deleteMode = true;
-        m_deleteBtn->setChecked(true);
-        if (m_activeIndex >= 0)
-        {
-            clearActiveBlueprintButton();
-            emit exitBlueprintModeRequested();
-        }
+        m_activeIndex = -1;
+        emit exitBlueprintModeRequested();
     }
-    else
+    else if (m_activeIndex > index)
     {
-        m_deleteMode = false;
-        m_deleteBtn->setChecked(false);
+        m_activeIndex--;
     }
+    m_blueprints.erase(m_blueprints.begin() + index);
+    rebuildButtons();
 }
 
 void BlueprintPanel::onBlueprintButtonClicked(int index)
 {
     if (index < 0 || index >= static_cast<int>(m_blueprints.size())) { return; }
 
-    if (m_deleteMode)
-    {
-        m_blueprints.erase(m_blueprints.begin() + index);
-        m_deleteMode = false;
-        m_deleteBtn->setChecked(false);
-        m_activeIndex = -1;
-        rebuildButtons();
-        return;
-    }
-
     if (m_activeIndex == index)
     {
         clearActiveBlueprintButton();
@@ -231,10 +210,11 @@ int BlueprintPanel::computeBlueprintCost(const Blueprint& bp) const
 
 void BlueprintPanel::rebuildButtons()
 {
-    for (QPushButton* btn : m_blueprintButtons)
+    while (m_buttonsLayout->count() > 1)
     {
-        m_buttonsLayout->removeWidget(btn);
-        delete btn;
+        QLayoutItem* item = m_buttonsLayout->takeAt(0);
+        if (item->widget()) { delete item->widget(); }
+        delete item;
     }
     m_blueprintButtons.clear();
 
@@ -244,15 +224,31 @@ void BlueprintPanel::rebuildButtons()
         const int        cost = computeBlueprintCost(bp);
         const QString label   = bp.name + "\n" + QString::number(cost) + " Blocks";
 
-        QPushButton* btn = new QPushButton(label, m_buttonsContainer);
+        QWidget*     row       = new QWidget(m_buttonsContainer);
+        QHBoxLayout* rowLayout = new QHBoxLayout(row);
+        rowLayout->setContentsMargins(0, 0, 0, 0);
+        rowLayout->setSpacing(4);
+
+        QPushButton* btn = new QPushButton(label, row);
         btn->setCheckable(true);
         btn->setFixedHeight(48);
-        m_buttonsLayout->insertWidget(i, btn);
+
+        QPushButton* delBtn = new QPushButton("\xc3\x97", row);
+        delBtn->setFixedWidth(28);
+        delBtn->setFixedHeight(48);
+
+        rowLayout->addWidget(btn, 1);
+        rowLayout->addWidget(delBtn, 0);
+
+        m_buttonsLayout->insertWidget(i, row);
 
         const int capturedIndex = i;
         connect(btn, &QPushButton::clicked, this, [this, capturedIndex]() {
             onBlueprintButtonClicked(capturedIndex);
         });
+        connect(delBtn, &QPushButton::clicked, this, [this, capturedIndex]() {
+            onDeleteBlueprintClicked(capturedIndex);
+        });
 
         m_blueprintButtons.push_back(btn);
     }
@@ -310,11 +306,6 @@ void BlueprintPanel::onLoadClicked()
             emit exitBlueprintModeRequested();
             m_activeIndex = -1;
         }
-        if (m_deleteMode)
-        {
-            m_deleteMode = false;
-            m_deleteBtn->setChecked(false);
-        }
 
         m_blueprints = std::move(loaded);
         rebuildButtons();