C++ Site::image方法代码示例

bool StandbyState::onMouseDown(Editor* editor, MouseMessage* msg)
{
  if (editor->hasCapture())
    return true;

  UIContext* context = UIContext::instance();
  tools::Ink* clickedInk = editor->getCurrentEditorInk();
  Site site;
  editor->getSite(&site);
  app::Document* document = static_cast<app::Document*>(site.document());
  Layer* layer = site.layer();

  // When an editor is clicked the current view is changed.
  context->setActiveView(editor->getDocumentView());

  // Start scroll loop
  if (checkForScroll(editor, msg) || checkForZoom(editor, msg))
    return true;

  // Move cel X,Y coordinates
  if (clickedInk->isCelMovement()) {
    // Handle "Auto Select Layer"
    if (editor->isAutoSelectLayer()) {
      gfx::Point cursor = editor->screenToEditor(msg->position());

      ColorPicker picker;
      picker.pickColor(site, cursor, ColorPicker::FromComposition);

      if (layer != picker.layer()) {
        layer = picker.layer();
        if (layer) {
          editor->setLayer(layer);
          editor->flashCurrentLayer();
        }
      }
    }

    if ((layer) &&
        (layer->type() == ObjectType::LayerImage)) {
      // TODO we should be able to move the `Background' with tiled mode
      if (layer->isBackground()) {
        StatusBar::instance()->showTip(1000,
          "The background layer cannot be moved");
      }
      else if (!layer->isVisible()) {
        StatusBar::instance()->showTip(1000,
          "Layer '%s' is hidden", layer->name().c_str());
      }
      else if (!layer->isMovable() || !layer->isEditable()) {
        StatusBar::instance()->showTip(1000,
          "Layer '%s' is locked", layer->name().c_str());
      }
      else {
        // Change to MovingCelState
        editor->setState(EditorStatePtr(new MovingCelState(editor, msg)));
      }
    }

    return true;
  }

  // Call the eyedropper command
  if (clickedInk->isEyedropper()) {
    callEyedropper(editor);
    return true;
  }

  if (clickedInk->isSelection()) {
    // Transform selected pixels
    if (document->isMaskVisible() && m_decorator->getTransformHandles(editor)) {
      TransformHandles* transfHandles = m_decorator->getTransformHandles(editor);

      // Get the handle covered by the mouse.
      HandleType handle = transfHandles->getHandleAtPoint(editor,
        msg->position(),
        document->getTransformation());

      if (handle != NoHandle) {
        int x, y, opacity;
        Image* image = site.image(&x, &y, &opacity);
        if (layer && image) {
          if (!layer->isEditable()) {
            StatusBar::instance()->showTip(1000,
              "Layer '%s' is locked", layer->name().c_str());
            return true;
          }

          // Change to MovingPixelsState
          transformSelection(editor, msg, handle);
        }
        return true;
      }
    }

    // Move selected pixels
    if (layer && editor->isInsideSelection() && msg->left()) {
      if (!layer->isEditable()) {
        StatusBar::instance()->showTip(1000,
          "Layer '%s' is locked", layer->name().c_str());
        return true;
//.........这里部分代码省略.........

void FlipCommand::onExecute(Context* context)
{
  ContextWriter writer(context);
  Document* document = writer.document();
  Sprite* sprite = writer.sprite();

  {
    Transaction transaction(writer.context(),
      m_flipMask ?
      (m_flipType == doc::algorithm::FlipHorizontal ?
        "Flip Horizontal":
        "Flip Vertical"):
      (m_flipType == doc::algorithm::FlipHorizontal ?
        "Flip Canvas Horizontal":
        "Flip Canvas Vertical"));
    DocumentApi api = document->getApi(transaction);

    CelList cels;
    if (m_flipMask) {
      auto range = App::instance()->timeline()->range();
      if (range.enabled())
        cels = get_unique_cels(sprite, range);
      else if (writer.cel())
        cels.push_back(writer.cel());
    }
    else {
      for (Cel* cel : sprite->uniqueCels())
        cels.push_back(cel);
    }

    Mask* mask = document->mask();
    if (m_flipMask && document->isMaskVisible()) {
      Site site = *writer.site();

      for (Cel* cel : cels) {
        site.frame(cel->frame());
        site.layer(cel->layer());

        int x, y;
        Image* image = site.image(&x, &y);
        if (!image)
          continue;

        // When the mask is inside the cel, we can try to flip the
        // pixels inside the image.
        if (cel->bounds().contains(mask->bounds())) {
          gfx::Rect flipBounds = mask->bounds();
          flipBounds.offset(-x, -y);
          flipBounds &= image->bounds();
          if (flipBounds.isEmpty())
            continue;

          if (mask->bitmap() && !mask->isRectangular())
            transaction.execute(new cmd::FlipMaskedCel(cel, m_flipType));
          else
            api.flipImage(image, flipBounds, m_flipType);

          if (cel->layer()->isTransparent())
            transaction.execute(new cmd::TrimCel(cel));
        }
        // When the mask is bigger than the cel bounds, we have to
        // expand the cel, make the flip, and shrink it again.
        else {
          gfx::Rect flipBounds = (sprite->bounds() & mask->bounds());
          if (flipBounds.isEmpty())
            continue;

          ExpandCelCanvas expand(
            site, cel->layer(),
            TiledMode::NONE, transaction,
            ExpandCelCanvas::None);

          expand.validateDestCanvas(gfx::Region(flipBounds));

          if (mask->bitmap() && !mask->isRectangular())
            doc::algorithm::flip_image_with_mask(
              expand.getDestCanvas(), mask, m_flipType,
              document->bgColor(cel->layer()));
          else
            doc::algorithm::flip_image(
              expand.getDestCanvas(),
              flipBounds, m_flipType);

          expand.commit();
        }
      }
    }
    else {
      for (Cel* cel : cels) {
        Image* image = cel->image();

        api.setCelPosition
          (sprite, cel,
            (m_flipType == doc::algorithm::FlipHorizontal ?
              sprite->width() - image->width() - cel->x():
              cel->x()),
            (m_flipType == doc::algorithm::FlipVertical ?
              sprite->height() - image->height() - cel->y():
              cel->y()));

//.........这里部分代码省略.........

bool StandbyState::onMouseDown(Editor* editor, MouseMessage* msg)
{
  if (editor->hasCapture())
    return true;

  UIContext* context = UIContext::instance();
  tools::Ink* clickedInk = editor->getCurrentEditorInk();
  Site site;
  editor->getSite(&site);
  app::Document* document = static_cast<app::Document*>(site.document());
  Layer* layer = site.layer();

  // When an editor is clicked the current view is changed.
  context->setActiveView(editor->getDocumentView());

  // Start scroll loop
  if (checkForScroll(editor, msg) || checkForZoom(editor, msg))
    return true;

  // Move cel X,Y coordinates
  if (clickedInk->isCelMovement()) {
    // Handle "Auto Select Layer"
    if (editor->isAutoSelectLayer()) {
      gfx::Point cursor = editor->screenToEditor(msg->position());

      ColorPicker picker;
      picker.pickColor(site, cursor, ColorPicker::FromComposition);

      DocumentRange range = App::instance()->getMainWindow()->getTimeline()->range();

      // Change layer only when the layer is diffrent from current one, and
      // the range we selected is not with multiple cels.
      bool layerChanged = (layer != picker.layer());
      bool rangeEnabled = range.enabled();
      bool rangeSingleCel = ((range.type() == DocumentRange::kCels) &&
                             (range.layers() == 1) && (range.frames() == 1));

      if (layerChanged && (!rangeEnabled || rangeSingleCel)) {
        layer = picker.layer();
        if (layer) {
          editor->setLayer(layer);
          editor->flashCurrentLayer();
        }
      }
    }

    if ((layer) &&
        (layer->type() == ObjectType::LayerImage)) {
      // TODO we should be able to move the `Background' with tiled mode
      if (layer->isBackground()) {
        StatusBar::instance()->showTip(1000,
          "The background layer cannot be moved");
      }
      else if (!layer->isVisible()) {
        StatusBar::instance()->showTip(1000,
          "Layer '%s' is hidden", layer->name().c_str());
      }
      else if (!layer->isMovable() || !layer->isEditable()) {
        StatusBar::instance()->showTip(1000,
          "Layer '%s' is locked", layer->name().c_str());
      }
      else if (!layer->cel(editor->frame())) {
        StatusBar::instance()->showTip(1000,
          "Cel is empty, nothing to move");
      }
      else {
        // Change to MovingCelState
        editor->setState(EditorStatePtr(new MovingCelState(editor, msg)));
      }
    }

    return true;
  }

  // Call the eyedropper command
  if (clickedInk->isEyedropper()) {
    editor->captureMouse();
    callEyedropper(editor);
    return true;
  }

  if (clickedInk->isSelection()) {
    // Transform selected pixels
    if (editor->isActive() &&
        document->isMaskVisible() &&
        m_decorator->getTransformHandles(editor)) {
      TransformHandles* transfHandles = m_decorator->getTransformHandles(editor);

      // Get the handle covered by the mouse.
      HandleType handle = transfHandles->getHandleAtPoint(editor,
        msg->position(),
        document->getTransformation());

      if (handle != NoHandle) {
        int x, y, opacity;
        Image* image = site.image(&x, &y, &opacity);
        if (layer && image) {
          if (!layer->isEditable()) {
            StatusBar::instance()->showTip(1000,
              "Layer '%s' is locked", layer->name().c_str());
//.........这里部分代码省略.........