1 files changed, 129 insertions, 0 deletions
diff --git a/labb3/tiles/mainwindow.cpp b/labb3/tiles/mainwindow.cpp
new file mode 100644
index 0000000..461d84a
--- /dev/null
+++ b/labb3/tiles/mainwindow.cpp
@@ -0,0 +1,129 @@
+/*
+ * TDDD86 Tiles
+ * This file contains the implementation of the mainwindow class.
+ * See mainwindow.h for comments about each member.
+ */
+
+#include <QPointF>
+#include <random>
+#include "mainwindow.h"
+#include "Tile.h"
+#include "TileList.h"
+
+// constants
+static const int SCENE_WIDTH = 600;
+static const int SCENE_HEIGHT = 400;
+static const int MIN_SIZE = 20;
+static const int MAX_SIZE = 100;
+static const int MIN_COLOR = 50;
+static const int MAX_COLOR = 255;
+static const int TILE_COUNT = 50;
+static const bool RANDOM = false;   // set to false for repeatable output
+
+MainWindow::MainWindow(QWidget *parent) :
+    QGraphicsView(parent)
+{
+    // setup graphical window
+    scene = new QGraphicsScene();
+    this->setScene(scene);
+    this->setSceneRect(0, 0, SCENE_WIDTH, SCENE_HEIGHT);
+    this->setFixedSize(sizeHint());
+
+    // place several random tiles on the screen
+    this->setWindowTitle("Tiles");
+    for (int i = 0; i < TILE_COUNT; ++i) {
+        addRandomTile(tlist);
+    }
+    tlist.drawAll(scene);
+}
+
+/*
+ * Listens to mouse press events from the graphical subsystem,
+ * and handles the events appropriately:
+ *   - A left-click is a 'raise' action.
+ *   - A shift-left-click is a 'lower' action.
+ *   - A right-click (or ctrl-click) is a 'delete' action.
+ *   - A shift-right-click (or shift-ctrl-click) is a 'delete all' action.
+ */
+void MainWindow::mousePressEvent(QMouseEvent *e)
+{
+    QPointF pt = mapToScene(e->pos());
+    bool modified = false;
+    switch (e->button()) {
+    case Qt::LeftButton:
+        switch (e->modifiers()) {
+        case Qt::NoModifier:
+            tlist.raise(pt.x(), pt.y());
+            modified = true;
+            break;
+        case Qt::ShiftModifier:
+                tlist.lower(pt.x(), pt.y());
+                modified  = true;
+            break;
+        }
+        break;
+    case Qt::RightButton:
+        switch (e->modifiers()) {
+        case Qt::NoModifier:
+            tlist.remove(pt.x(), pt.y());
+            modified = true;
+            break;
+        case Qt::ShiftModifier:
+                tlist.removeAll(pt.x(), pt.y());
+                modified = true;
+            break;
+        }
+        break;
+    default:
+        QGraphicsView::mousePressEvent(e);
+    }
+    if (modified) {
+        scene->clear();
+        tlist.drawAll(scene);
+    }
+}
+
+/*
+ * Listens to key press events from the graphical subsystem,
+ * and handles the events appropriately:
+ *   - 'N' creates a new random tile.
+ */
+void MainWindow::keyPressEvent(QKeyEvent *e)
+{
+    switch (e->key()) {
+    case Qt::Key_N:
+        addRandomTile(tlist);
+        scene->clear();
+        tlist.drawAll(scene);
+        break;
+    default:
+        QGraphicsView::keyPressEvent(e);
+    }
+}
+
+
+/*
+ * Creates a new tile with a random x/y position, width, height, and color,
+ * and adds it to the given tile list.
+ */
+void MainWindow::addRandomTile(TileList &tlist)
+{
+    Tile tile;
+    std::random_device rd;
+
+    // possibly use the same random numbers every time for testing
+    static std::default_random_engine e(RANDOM ? rd() : 42);
+
+    std::uniform_int_distribution<unsigned> u1(MIN_COLOR, MAX_COLOR);
+    std::uniform_int_distribution<unsigned> u2(MIN_SIZE, MAX_SIZE);
+    tile.width = u2(e);
+    tile.height = u2(e);
+    std::uniform_int_distribution<unsigned> u3(0, SCENE_WIDTH - tile.width - 1);
+    std::uniform_int_distribution<unsigned> u4(0, SCENE_HEIGHT - tile.height - 1);
+    tile.x = u3(e);
+    tile.y = u4(e);
+    tile.r = u1(e);
+    tile.g = u1(e);
+    tile.b = u1(e);
+    tlist.addTile(tile);
+}