动画

本文演示如何使用 Aspose.Slides for C++ 创建简单动画并管理其顺序。

添加动画

创建一个矩形形状，并应用在点击时触发的淡入效果。

static void AddAnimation()
{
    auto presentation = MakeObject<Presentation>();
    auto slide = presentation->get_Slide(0);

    auto shape = slide->get_Shapes()->AddAutoShape(ShapeType::Rectangle, 50, 50, 100, 100);

    // 淡入效果。
    slide->get_Timeline()->get_MainSequence()->AddEffect(
        shape, EffectType::Fade, EffectSubtype::None, EffectTriggerType::OnClick);

    presentation->Dispose();
}

访问动画

从幻灯片时间轴中检索第一个动画效果。

static void AccessAnimation()
{
    auto presentation = MakeObject<Presentation>();
    auto slide = presentation->get_Slide(0);

    auto shape = slide->get_Shapes()->AddAutoShape(ShapeType::Rectangle, 50, 50, 100, 100);

    slide->get_Timeline()->get_MainSequence()->AddEffect(
        shape, EffectType::Fade, EffectSubtype::None, EffectTriggerType::OnClick);

    // 访问第一个动画效果。
    auto effect = slide->get_Timeline()->get_MainSequenceEffect(0);

    presentation->Dispose();
}

移除动画

从序列中移除动画效果。

static void RemoveAnimation()
{
    auto presentation = MakeObject<Presentation>();
    auto slide = presentation->get_Slide(0);

    auto shape = slide->get_Shapes()->AddAutoShape(ShapeType::Rectangle, 50, 50, 100, 100);

    auto effect = slide->get_Timeline()->get_MainSequence()->AddEffect(
        shape, EffectType::Fade, EffectSubtype::None, EffectTriggerType::OnClick);

    // 移除效果。
    slide->get_Timeline()->get_MainSequence()->Remove(effect);

    presentation->Dispose();
}

序列动画

添加多个效果，并演示动画发生的顺序。

static void SequenceAnimations()
{
    auto presentation = MakeObject<Presentation>();
    auto slide = presentation->get_Slide(0);

    auto shape1 = slide->get_Shapes()->AddAutoShape(ShapeType::Rectangle, 50, 50, 100, 100);
    auto shape2 = slide->get_Shapes()->AddAutoShape(ShapeType::Ellipse, 200, 50, 100, 100);

    auto sequence = slide->get_Timeline()->get_MainSequence();
    sequence->AddEffect(shape1, EffectType::Fly, EffectSubtype::Bottom, EffectTriggerType::OnClick);
    sequence->AddEffect(shape2, EffectType::Fly, EffectSubtype::Bottom, EffectTriggerType::OnClick);

    presentation->Dispose();
}