added buttons for new zoom operations

gui/base.qrc

@@ -10,5 +10,9 @@
         <file>resources/resultset_next.png</file>
         <file>resources/resultset_last.png</file>
         <file>resources/cross.png</file>
+        <file>resources/zoom_in.png</file>
+        <file>resources/zoom_out.png</file>
+        <file>resources/shape_handles.png</file>
+        <file>resources/shape_square.png</file>
     </qresource>
 </RCC>

gui/basewindow.cc

@@ -25,7 +25,6 @@
 #include <QSplitter>
 #include "designwidget.h"
 #include "fpgaviewwidget.h"
-#include "jsonparse.h"
 #include "log.h"
 #include "mainwindow.h"
 #include "pythontab.h"
@@ -76,7 +75,7 @@ BaseMainWindow::BaseMainWindow(std::unique_ptr<Context> context, QWidget *parent
     centralTabWidget->setTabsClosable(true);
     connect(centralTabWidget, SIGNAL(tabCloseRequested(int)), this, SLOT(closeTab(int)));
 
-    FPGAViewWidget *fpgaView = new FPGAViewWidget();
+    fpgaView = new FPGAViewWidget();
     centralTabWidget->addTab(fpgaView, "Graphics");
     centralTabWidget->tabBar()->tabButton(0, QTabBar::RightSide)->resize(0, 0);
 
@@ -163,4 +162,30 @@ void BaseMainWindow::createMenusAndBars()
     mainToolBar->addAction(actionSave);
 }
 
+void BaseMainWindow::createGraphicsBar()
+{
+    QAction *actionZoomIn = new QAction("Zoom In", this);
+    actionZoomIn->setIcon(QIcon(":/icons/resources/zoom_in.png"));
+    connect(actionZoomIn, SIGNAL(triggered()), fpgaView, SLOT(zoom_in()));
+
+    QAction *actionZoomOut = new QAction("Zoom Out", this);
+    actionZoomOut->setIcon(QIcon(":/icons/resources/zoom_out.png"));
+    connect(actionZoomOut, SIGNAL(triggered()), fpgaView, SLOT(zoom_out()));
+
+    QAction *actionZoomSelected = new QAction("Zoom Selected", this);
+    actionZoomSelected->setIcon(QIcon(":/icons/resources/shape_handles.png"));
+    connect(actionZoomSelected, SIGNAL(triggered()), fpgaView, SLOT(zoom_selected()));
+
+    QAction *actionZoomOutbound = new QAction("Zoom Outbound", this);
+    actionZoomOutbound->setIcon(QIcon(":/icons/resources/shape_square.png"));
+    connect(actionZoomOutbound, SIGNAL(triggered()), fpgaView, SLOT(zoom_outbound()));
+
+    graphicsToolBar = new QToolBar();
+    addToolBar(Qt::TopToolBarArea, graphicsToolBar);
+    graphicsToolBar->addAction(actionZoomIn);
+    graphicsToolBar->addAction(actionZoomOut);
+    graphicsToolBar->addAction(actionZoomSelected);
+    graphicsToolBar->addAction(actionZoomOutbound);
+}
+
 NEXTPNR_NAMESPACE_END

gui/basewindow.h

@@ -37,6 +37,7 @@ NEXTPNR_NAMESPACE_BEGIN
 
 class PythonTab;
 class DesignWidget;
+class FPGAViewWidget;
 
 class BaseMainWindow : public QMainWindow
 {
@@ -49,6 +50,7 @@ class BaseMainWindow : public QMainWindow
 
   protected:
     void createMenusAndBars();
+    void createGraphicsBar();
 
   protected Q_SLOTS:
     void writeInfo(std::string text);
@@ -70,12 +72,14 @@ class BaseMainWindow : public QMainWindow
 
     QMenuBar *menuBar;
     QToolBar *mainToolBar;
+    QToolBar *graphicsToolBar;
     QStatusBar *statusBar;
     QAction *actionNew;
     QAction *actionOpen;
     QAction *actionSave;
     QProgressBar *progressBar;
     DesignWidget *designview;
+    FPGAViewWidget *fpgaView;
 };
 
 NEXTPNR_NAMESPACE_END

gui/fpgaviewwidget.cc

@@ -580,21 +580,32 @@ void FPGAViewWidget::wheelEvent(QWheelEvent *event)
 {
     QPoint degree = event->angleDelta() / 8;
 
-    if (!degree.isNull()) {
-
-        if (zoom_ < zoomNear_) {
-            zoom_ = zoomNear_;
-        } else if (zoom_ < zoomLvl1_) {
-            zoom_ -= degree.y() / 10.0;
-        } else if (zoom_ < zoomLvl2_) {
-            zoom_ -= degree.y() / 5.0;
-        } else if (zoom_ < zoomFar_) {
-            zoom_ -= degree.y();
-        } else {
-            zoom_ = zoomFar_;
-        }
-        update();
-    }
+    if (!degree.isNull())
+        zoom(degree.y());
 }
 
+void FPGAViewWidget::zoom(int level)
+{
+    if (zoom_ < zoomNear_) {
+        zoom_ = zoomNear_;
+    } else if (zoom_ < zoomLvl1_) {
+        zoom_ -= level / 10.0;
+    } else if (zoom_ < zoomLvl2_) {
+        zoom_ -= level / 5.0;
+    } else if (zoom_ < zoomFar_) {
+        zoom_ -= level;
+    } else {
+        zoom_ = zoomFar_;
+    }
+    update();
+}
+
+void FPGAViewWidget::zoom_in() { zoom(10); }
+
+void FPGAViewWidget::zoom_out() { zoom(-10); }
+
+void FPGAViewWidget::zoom_selected() {}
+
+void FPGAViewWidget::zoom_outbound() {}
+
 NEXTPNR_NAMESPACE_END

gui/fpgaviewwidget.h

@@ -292,9 +292,13 @@ class FPGAViewWidget : public QOpenGLWidget, protected QOpenGLFunctions
     void onSelectedArchItem(std::vector<DecalXY> decals);
     void onHighlightGroupChanged(std::vector<DecalXY> decals, int group);
     void pokeRenderer(void);
-
+    void zoom_in();
+    void zoom_out();
+    void zoom_selected();
+    void zoom_outbound();
   private:
     void renderLines(void);
+    void zoom(int level);
 
     QPoint lastPos_;
     LineShader lineShader_;

gui/ice40/mainwindow.cc

@@ -159,6 +159,8 @@ void MainWindow::createMenu()
     taskToolBar->addAction(actionPlay);
     taskToolBar->addAction(actionPause);
     taskToolBar->addAction(actionStop);
+
+    createGraphicsBar();
 }
 
 #if defined(_MSC_VER)