使用 C++ 在 PowerPoint 演示文稿中实现视觉效果 | File Format Processing Plugins for C# .NET Core

Aspose.Slides FOSS for C++ 让您在原生 C++ 中对 PowerPoint 形状应用专业质量的视觉效果，无需 Microsoft Office，也无需 API 密钥。本文演示了库中可用的填充系统、2D 效果和 3D 格式设置。

填充系统

每个形状都有一个 fill_format()，它控制其内部的绘制方式。下面演示的四种填充类型涵盖了 PowerPoint 设计调色板的核心。

实心填充

最简单的填充，带可选透明度的纯色：

#include <Aspose/Slides/Foss/auto_shape.h>
#include <Aspose/Slides/Foss/drawing/color.h>
#include <Aspose/Slides/Foss/export/save_format.h>
#include <Aspose/Slides/Foss/fill_format.h>
#include <Aspose/Slides/Foss/fill_type.h>
#include <Aspose/Slides/Foss/presentation.h>
#include <Aspose/Slides/Foss/shape_collection.h>
#include <Aspose/Slides/Foss/shape_type.h>
#include <Aspose/Slides/Foss/slide.h>
#include <Aspose/Slides/Foss/slide_collection.h>
#include <Aspose/Slides/Foss/text_frame.h>

using namespace Aspose::Slides::Foss;
using namespace Aspose::Slides::Foss::Drawing;

int main() {
    Presentation prs;
    auto& shape = prs.slides()[0].shapes().add_auto_shape(
        ShapeType::ROUND_CORNER_RECTANGLE, 100, 100, 400, 150
    );
    shape.text_frame()->set_text("Solid Fill");

    shape.fill_format().set_fill_type(FillType::SOLID);
    shape.fill_format().solid_fill_color().set_color(Color::from_argb(255, 30, 80, 180));

    prs.save("solid.pptx", SaveFormat::PPTX);
    return 0;
}

线性渐变填充

渐变停止点可让您在形状上实现从一种颜色到另一种颜色的混合：

#include <Aspose/Slides/Foss/auto_shape.h>
#include <Aspose/Slides/Foss/drawing/color.h>
#include <Aspose/Slides/Foss/export/save_format.h>
#include <Aspose/Slides/Foss/fill_format.h>
#include <Aspose/Slides/Foss/fill_type.h>
#include <Aspose/Slides/Foss/gradient_format.h>
#include <Aspose/Slides/Foss/gradient_shape.h>
#include <Aspose/Slides/Foss/presentation.h>
#include <Aspose/Slides/Foss/shape_collection.h>
#include <Aspose/Slides/Foss/shape_type.h>
#include <Aspose/Slides/Foss/slide.h>
#include <Aspose/Slides/Foss/slide_collection.h>

using namespace Aspose::Slides::Foss;
using namespace Aspose::Slides::Foss::Drawing;

int main() {
    Presentation prs;
    auto& shape = prs.slides()[0].shapes().add_auto_shape(
        ShapeType::RECTANGLE, 100, 100, 400, 150
    );

    auto& ff = shape.fill_format();
    ff.set_fill_type(FillType::GRADIENT);
    auto& gf = ff.gradient_format();
    gf.set_gradient_shape(GradientShape::LINEAR);
    gf.set_linear_gradient_angle(90);   // top-to-bottom

    gf.gradient_stops().add(0.0f, Color::from_argb(255, 30, 80, 180));   // top: blue
    gf.gradient_stops().add(1.0f, Color::from_argb(255, 0, 200, 160));   // bottom: teal

    prs.save("gradient.pptx", SaveFormat::PPTX);
    return 0;
}

2D 视觉特效

外部投影阴影

为任意形状添加半透明投影：

#include <Aspose/Slides/Foss/auto_shape.h>
#include <Aspose/Slides/Foss/drawing/color.h>
#include <Aspose/Slides/Foss/effect_format.h>
#include <Aspose/Slides/Foss/export/save_format.h>
#include <Aspose/Slides/Foss/fill_format.h>
#include <Aspose/Slides/Foss/fill_type.h>
#include <Aspose/Slides/Foss/presentation.h>
#include <Aspose/Slides/Foss/shape_collection.h>
#include <Aspose/Slides/Foss/shape_type.h>
#include <Aspose/Slides/Foss/slide.h>
#include <Aspose/Slides/Foss/slide_collection.h>
#include <Aspose/Slides/Foss/text_frame.h>

using namespace Aspose::Slides::Foss;
using namespace Aspose::Slides::Foss::Drawing;

int main() {
    Presentation prs;
    auto& shape = prs.slides()[0].shapes().add_auto_shape(
        ShapeType::ROUND_CORNER_RECTANGLE, 100, 100, 350, 150
    );
    shape.text_frame()->set_text("Drop Shadow");

    shape.fill_format().set_fill_type(FillType::SOLID);
    shape.fill_format().solid_fill_color().set_color(Color::white);

    auto& ef = shape.effect_format();
    ef.enable_outer_shadow_effect();
    auto* shadow = ef.outer_shadow_effect();
    shadow->set_blur_radius(12);
    shadow->set_direction(315);   // upper-left
    shadow->set_distance(8);
    shadow->shadow_color().set_color(Color::from_argb(100, 0, 0, 0));

    prs.save("shadow.pptx", SaveFormat::PPTX);
    return 0;
}

发光效果

形状边缘周围的彩色光晕：

#include <Aspose/Slides/Foss/auto_shape.h>
#include <Aspose/Slides/Foss/drawing/color.h>
#include <Aspose/Slides/Foss/effect_format.h>
#include <Aspose/Slides/Foss/export/save_format.h>
#include <Aspose/Slides/Foss/fill_format.h>
#include <Aspose/Slides/Foss/fill_type.h>
#include <Aspose/Slides/Foss/presentation.h>
#include <Aspose/Slides/Foss/shape_collection.h>
#include <Aspose/Slides/Foss/shape_type.h>
#include <Aspose/Slides/Foss/slide.h>
#include <Aspose/Slides/Foss/slide_collection.h>

using namespace Aspose::Slides::Foss;
using namespace Aspose::Slides::Foss::Drawing;

int main() {
    Presentation prs;
    auto& shape = prs.slides()[0].shapes().add_auto_shape(
        ShapeType::ELLIPSE, 150, 100, 250, 250
    );
    shape.fill_format().set_fill_type(FillType::SOLID);
    shape.fill_format().solid_fill_color().set_color(Color::from_argb(255, 20, 60, 140));

    auto& ef = shape.effect_format();
    ef.enable_glow_effect();
    auto* glow = ef.glow_effect();
    glow->set_radius(20);
    glow->color().set_color(Color::from_argb(200, 0, 180, 255));

    prs.save("glow.pptx", SaveFormat::PPTX);
    return 0;
}

3D 格式化

倒角与材质

three_d_format() 方法为任何平面形状赋予三维外观。将斜角与相机预设和材质相结合，以获得最丰富的效果：

#include <Aspose/Slides/Foss/auto_shape.h>
#include <Aspose/Slides/Foss/bevel_preset_type.h>
#include <Aspose/Slides/Foss/camera_preset_type.h>
#include <Aspose/Slides/Foss/drawing/color.h>
#include <Aspose/Slides/Foss/export/save_format.h>
#include <Aspose/Slides/Foss/fill_format.h>
#include <Aspose/Slides/Foss/fill_type.h>
#include <Aspose/Slides/Foss/light_rig_preset_type.h>
#include <Aspose/Slides/Foss/lighting_direction.h>
#include <Aspose/Slides/Foss/material_preset_type.h>
#include <Aspose/Slides/Foss/presentation.h>
#include <Aspose/Slides/Foss/shape_collection.h>
#include <Aspose/Slides/Foss/shape_type.h>
#include <Aspose/Slides/Foss/slide.h>
#include <Aspose/Slides/Foss/slide_collection.h>
#include <Aspose/Slides/Foss/text_frame.h>
#include <Aspose/Slides/Foss/three_d_format.h>

using namespace Aspose::Slides::Foss;
using namespace Aspose::Slides::Foss::Drawing;

int main() {
    Presentation prs;
    auto& shape = prs.slides()[0].shapes().add_auto_shape(
        ShapeType::RECTANGLE, 150, 150, 300, 130
    );
    shape.text_frame()->set_text("Metal Button");

    // Blue solid fill
    shape.fill_format().set_fill_type(FillType::SOLID);
    shape.fill_format().solid_fill_color().set_color(Color::from_argb(255, 20, 70, 160));

    // 3D bevel + camera + light + material
    auto& tdf = shape.three_d_format();
    tdf.bevel_top().set_bevel_type(BevelPresetType::CIRCLE);
    tdf.bevel_top().set_width(10);
    tdf.bevel_top().set_height(5);
    tdf.camera().set_camera_type(CameraPresetType::PERSPECTIVE_ABOVE);
    tdf.light_rig().set_light_type(LightRigPresetType::BALANCED);
    tdf.light_rig().set_direction(LightingDirection::TOP);
    tdf.set_material(MaterialPresetType::METAL);
    tdf.set_depth(20);

    prs.save("metal-button.pptx", SaveFormat::PPTX);
    return 0;
}

同一形状上的组合效果

阴影和 3D 格式可以在同一个形状上共存，实现精致的“卡片”设计：

#include <Aspose/Slides/Foss/auto_shape.h>
#include <Aspose/Slides/Foss/bevel_preset_type.h>
#include <Aspose/Slides/Foss/camera_preset_type.h>
#include <Aspose/Slides/Foss/drawing/color.h>
#include <Aspose/Slides/Foss/effect_format.h>
#include <Aspose/Slides/Foss/export/save_format.h>
#include <Aspose/Slides/Foss/fill_format.h>
#include <Aspose/Slides/Foss/fill_type.h>
#include <Aspose/Slides/Foss/material_preset_type.h>
#include <Aspose/Slides/Foss/presentation.h>
#include <Aspose/Slides/Foss/shape_collection.h>
#include <Aspose/Slides/Foss/shape_type.h>
#include <Aspose/Slides/Foss/slide.h>
#include <Aspose/Slides/Foss/slide_collection.h>
#include <Aspose/Slides/Foss/text_frame.h>
#include <Aspose/Slides/Foss/three_d_format.h>

using namespace Aspose::Slides::Foss;
using namespace Aspose::Slides::Foss::Drawing;

int main() {
    Presentation prs;
    auto& shape = prs.slides()[0].shapes().add_auto_shape(
        ShapeType::ROUND_CORNER_RECTANGLE, 120, 120, 360, 150
    );
    shape.text_frame()->set_text("Premium Card");

    // Fill
    shape.fill_format().set_fill_type(FillType::SOLID);
    shape.fill_format().solid_fill_color().set_color(Color::from_argb(255, 30, 80, 180));

    // 3D bevel
    auto& tdf = shape.three_d_format();
    tdf.bevel_top().set_bevel_type(BevelPresetType::CIRCLE);
    tdf.bevel_top().set_width(8);
    tdf.camera().set_camera_type(CameraPresetType::PERSPECTIVE_ABOVE);
    tdf.set_material(MaterialPresetType::PLASTIC);

    // Drop shadow
    auto& ef = shape.effect_format();
    ef.enable_outer_shadow_effect();
    auto* shadow = ef.outer_shadow_effect();
    shadow->set_blur_radius(14);
    shadow->set_direction(270);
    shadow->set_distance(8);
    shadow->shadow_color().set_color(Color::from_argb(70, 0, 0, 0));

    prs.save("premium-card.pptx", SaveFormat::PPTX);
    return 0;
}

安装

include(FetchContent)
FetchContent_Declare(
    aspose_slides_foss
    GIT_REPOSITORY https://github.com/aspose-slides-foss/Aspose.Slides-FOSS-for-Cpp.git
    GIT_TAG main
)
FetchContent_MakeAvailable(aspose_slides_foss)
target_link_libraries(your_target PRIVATE aspose_slides_foss)

无需 Office 安装，无需许可证密钥，无网络调用；所有处理均在本地完成。

填充系统#

实心填充#

线性渐变填充#

2D 视觉特效#

外部投影阴影#

发光效果#

3D 格式化#

倒角与材质#

同一形状上的组合效果#

安装#

相关资源#