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authorHowaner <franzi.moos@googlemail.com>2014-09-19 14:31:18 +0200
committerHowaner <franzi.moos@googlemail.com>2014-09-19 14:31:18 +0200
commit4398156b2e56ccfcb41f750906501ecf446be045 (patch)
treedc1c070c6c7490619d8b05e30ace2c959f085bb2 /Tools/QtBiomeVisualiser/BiomeView.cpp
parentDerp (diff)
parentQtBiomeVisualiser: More gcc fixes. (diff)
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Diffstat (limited to 'Tools/QtBiomeVisualiser/BiomeView.cpp')
-rw-r--r--Tools/QtBiomeVisualiser/BiomeView.cpp185
1 files changed, 183 insertions, 2 deletions
diff --git a/Tools/QtBiomeVisualiser/BiomeView.cpp b/Tools/QtBiomeVisualiser/BiomeView.cpp
index be01fd104..bbaccb369 100644
--- a/Tools/QtBiomeVisualiser/BiomeView.cpp
+++ b/Tools/QtBiomeVisualiser/BiomeView.cpp
@@ -8,11 +8,19 @@
+static const int DELTA_STEP = 120; // The normal per-notch wheel delta
+
+
+
+
+
BiomeView::BiomeView(QWidget * parent) :
super(parent),
m_X(0),
m_Z(0),
- m_Zoom(1)
+ m_Zoom(1),
+ m_IsMouseDragging(false),
+ m_MouseWheelDelta(0)
{
// Create the image used for undefined chunks:
int offset = 0;
@@ -33,6 +41,9 @@ BiomeView::BiomeView(QWidget * parent) :
// Add a chunk-update callback mechanism:
connect(&m_Cache, SIGNAL(chunkAvailable(int, int)), this, SLOT(chunkAvailable(int, int)));
+
+ // Allow keyboard interaction:
+ setFocusPolicy(Qt::StrongFocus);
}
@@ -120,6 +131,21 @@ void BiomeView::chunkAvailable(int a_ChunkX, int a_ChunkZ)
+void BiomeView::reload()
+{
+ if (!hasData())
+ {
+ return;
+ }
+ m_Cache.reload();
+
+ redraw();
+}
+
+
+
+
+
void BiomeView::drawChunk(int a_ChunkX, int a_ChunkZ)
{
if (!hasData())
@@ -236,9 +262,164 @@ void BiomeView::paintEvent(QPaintEvent * a_Event)
-void BiomeView::queueChunkRender(ChunkPtr a_Chunk)
+void BiomeView::mousePressEvent(QMouseEvent * a_Event)
+{
+ m_LastX = a_Event->x();
+ m_LastY = a_Event->y();
+ m_IsMouseDragging = true;
+}
+
+
+
+
+
+void BiomeView::mouseMoveEvent(QMouseEvent * a_Event)
+{
+ if (m_IsMouseDragging)
+ {
+ // The user is dragging the mouse, move the view around:
+ m_X += (m_LastX - a_Event->x()) / m_Zoom;
+ m_Z += (m_LastY - a_Event->y()) / m_Zoom;
+ m_LastX = a_Event->x();
+ m_LastY = a_Event->y();
+ redraw();
+ return;
+ }
+
+ // TODO: Update the status bar info for the biome currently pointed at
+}
+
+
+
+
+
+void BiomeView::mouseReleaseEvent(QMouseEvent *)
+{
+ m_IsMouseDragging = false;
+}
+
+
+
+
+
+void BiomeView::wheelEvent(QWheelEvent * a_Event)
+{
+ m_MouseWheelDelta += a_Event->delta();
+ while (m_MouseWheelDelta >= DELTA_STEP)
+ {
+ increaseZoom();
+ m_MouseWheelDelta -= DELTA_STEP;
+ }
+ while (m_MouseWheelDelta <= -DELTA_STEP)
+ {
+ decreaseZoom();
+ m_MouseWheelDelta += DELTA_STEP;
+ }
+}
+
+
+
+
+
+void BiomeView::keyPressEvent(QKeyEvent * a_Event)
+{
+ switch (a_Event->key())
+ {
+ case Qt::Key_Up:
+ case Qt::Key_W:
+ {
+ m_Z -= 10.0 / m_Zoom;
+ redraw();
+ break;
+ }
+
+ case Qt::Key_Down:
+ case Qt::Key_S:
+ {
+ m_Z += 10.0 / m_Zoom;
+ redraw();
+ break;
+ }
+
+ case Qt::Key_Left:
+ case Qt::Key_A:
+ {
+ m_X -= 10.0 / m_Zoom;
+ redraw();
+ break;
+ }
+
+ case Qt::Key_Right:
+ case Qt::Key_D:
+ {
+ m_X += 10.0 / m_Zoom;
+ redraw();
+ break;
+ }
+
+ case Qt::Key_PageUp:
+ case Qt::Key_Q:
+ {
+ increaseZoom();
+ break;
+ }
+
+ case Qt::Key_PageDown:
+ case Qt::Key_E:
+ {
+ decreaseZoom();
+ break;
+ }
+ }
+}
+
+
+
+
+
+void BiomeView::decreaseZoom()
{
+ if (m_Zoom > 1.001)
+ {
+ m_Zoom--;
+ if (m_Zoom < 1.0)
+ {
+ // Just crossed the 100%, fixate the 100% threshold:
+ m_Zoom = 1.0;
+ }
+ }
+ else if (m_Zoom > 0.01)
+ {
+ m_Zoom = m_Zoom / 2;
+ }
+ redraw();
+}
+
+
+
+
+void BiomeView::increaseZoom()
+{
+ if (m_Zoom > 0.99)
+ {
+ if (m_Zoom > 20.0)
+ {
+ // Zoom too large
+ return;
+ }
+ m_Zoom++;
+ }
+ else
+ {
+ m_Zoom = m_Zoom * 2;
+ if (m_Zoom > 1.0)
+ {
+ // Just crossed the 100%, fixate the 100% threshold:
+ m_Zoom = 1.0;
+ }
+ }
+ redraw();
}