src/qt-compositor/compositor_api/waylandsurfaceitem.cpp

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  40
  41 #include "waylandsurfaceitem.h"
  42 #include "waylandsurface.h"
  43
  44 #include <qsgengine.h>
  45 #include <private/qsgitem_p.h>
  46
  47 #include <QKeyEvent>
  48
  49 #include <qsgsimpletexturenode.h>
  50
  51 void WaylandSurfaceItem::surfaceDamaged(const QRect &)
  52 {
  53     if (m_texture)
  54         delete m_texture;
  55
  56     if (m_surface->type() == WaylandSurface::Texture) {
  57         m_texture = canvas()->sceneGraphEngine()->createTextureFromId(m_surface->texture(),
  58                                                                       m_surface->geometry().size(),
  59                                                                       QSGEngine::TextureOwnsGLTexture);
  60     } else {
  61         m_texture = canvas()->sceneGraphEngine()->createTextureFromImage(m_surface->image());
  62     }
  63
  64     emit textureChanged();
  65 }
  66
  67 WaylandSurfaceItem::WaylandSurfaceItem(QSGItem *parent)
  68     : QSGItem(parent)
  69     , m_surface(0)
  70     , m_texture(0)
  71 {
  72 }
  73
  74 WaylandSurfaceItem::WaylandSurfaceItem(WaylandSurface *surface, QSGItem *parent)
  75     : QSGItem(parent)
  76     , m_surface(0)
  77     , m_texture(0)
  78 {
  79     init(surface);
  80 }
  81
  82 void WaylandSurfaceItem::init(WaylandSurface *surface)
  83 {
  84     if (!surface)
  85         return;
  86
  87     m_surface = surface;
  88
  89     setWidth(surface->geometry().width());
  90     setHeight(surface->geometry().height());
  91
  92     setSmooth(true);
  93     setFlag(ItemHasContents);
  94     setAcceptedMouseButtons(Qt::LeftButton | Qt::RightButton);
  95     connect(surface, SIGNAL(mapped(const QRect &)), this, SLOT(surfaceMapped(const QRect &)));
  96     connect(surface, SIGNAL(destroyed(QObject *)), this, SLOT(surfaceDestroyed(QObject *)));
  97     connect(this, SIGNAL(textureChanged()), this, SLOT(update()));
  98     connect(surface, SIGNAL(damaged(const QRect &)), this, SLOT(surfaceDamaged(const QRect &)));
  99 }
 100
 101 WaylandSurfaceItem::~WaylandSurfaceItem()
 102 {
 103     delete m_texture;
 104 }
 105
 106 void WaylandSurfaceItem::setSurface(WaylandSurface *surface)
 107 {
 108     init(surface);
 109 }
 110
 111 QSGTexture *WaylandSurfaceItem::texture() const
 112 {
 113     if (m_texture)
 114         m_texture->setFiltering(smooth() ? QSGTexture::Linear : QSGTexture::Nearest);
 115     return m_texture;
 116 }
 117
 118 void WaylandSurfaceItem::mousePressEvent(QGraphicsSceneMouseEvent *event)
 119 {
 120     if (m_surface)
 121         m_surface->sendMousePressEvent(toSurface(event->pos()), event->button());
 122 }
 123
 124 void WaylandSurfaceItem::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
 125 {
 126     if (m_surface)
 127         m_surface->sendMouseMoveEvent(toSurface(event->pos()));
 128 }
 129
 130 void WaylandSurfaceItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
 131 {
 132     if (m_surface)
 133         m_surface->sendMouseReleaseEvent(toSurface(event->pos()), event->button());
 134 }
 135
 136 void WaylandSurfaceItem::keyPressEvent(QKeyEvent *event)
 137 {
 138     if (m_surface && hasFocus())
 139         m_surface->sendKeyPressEvent(event->nativeScanCode());
 140 }
 141
 142 void WaylandSurfaceItem::keyReleaseEvent(QKeyEvent *event)
 143 {
 144     if (m_surface && hasFocus())
 145         m_surface->sendKeyReleaseEvent(event->nativeScanCode());
 146 }
 147
 148 void WaylandSurfaceItem::takeFocus()
 149 {
 150     setFocus(true);
 151
 152     if (m_surface)
 153         m_surface->setInputFocus();
 154 }
 155
 156 QPoint WaylandSurfaceItem::toSurface(const QPointF &pos) const
 157 {
 158     return pos.toPoint();
 159 }
 160
 161 void WaylandSurfaceItem::surfaceMapped(const QRect &rect)
 162 {
 163     setWidth(rect.width());
 164     setHeight(rect.height());
 165 }
 166
 167 void WaylandSurfaceItem::surfaceDestroyed(QObject *)
 168 {
 169     m_surface = 0;
 170 }
 171
 172 QSGNode *WaylandSurfaceItem::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *)
 173 {
 174     QSGSimpleTextureNode *node = static_cast<QSGSimpleTextureNode *>(oldNode);
 175
 176     if (!m_texture) {
 177         delete oldNode;
 178         return 0;
 179     }
 180
 181     if (!node) {
 182         node = new QSGSimpleTextureNode();
 183         node->setTexture(m_texture);
 184     }
 185
 186     node->setRect(QRectF(0, 0, width(), height()));
 187     node->setFiltering(QSGItemPrivate::get(this)->smooth
 188                        ? QSGTexture::Linear
 189                        : QSGTexture::Nearest);
 190
 191     return node;
 192 }