Efectes visuals en presentacions de PowerPoint amb C++ | File Format Processing Plugins for C# .NET Core

Aspose.Slides FOSS for C++ lets you apply professional-quality visual effects to PowerPoint shapes in native C++, with no Microsoft Office and no API keys. This post demonstrates the fill system, 2D effects, and 3D formatting available in the library.

El sistema de rellotge

Cada forma té un fill_format() Els quatre tipus de rellotge que es mostren a continuació cobreixen el nucli del disseny de PowerPoint.

Llens sòlid

El rellotge més senzill, de color pla amb transparència opcional:

#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;
}

Lliniatge de gradient lineal

Les parades de gradient et permeten barrejar d’un color a un altre al llarg de la forma:

#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 Visual Effects

Ombra exterior de la gota

Fixar una ombra de gota semitransparent a qualsevol forma:

#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;
}

Efect de la lluminació

Un halo de color al voltant del límit de la forma:

#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 Formatting

Balsos i material

El three_d_format() El mètode dóna a qualsevol forma plana una aparença tridimensional. Combinar un bisell amb un preajust de la càmera i un material per al resultat més ric:

#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;
}

Combinació d’efectes en la mateixa forma

L’ombra i el format 3D poden coexistir en una sola forma, permetent dissenys de “carta” polides:

#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;
}

Instal·lació

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)

No hi ha instal·lació d’Office, ni claus de llicència, no hi han trucades a la xarxa; tot el processament es fa localment.

El sistema de rellotge#

Llens sòlid#

Lliniatge de gradient lineal#

2D Visual Effects#

Ombra exterior de la gota#

Efect de la lluminació#

3D Formatting#

Balsos i material#

Combinació d’efectes en la mateixa forma#

Instal·lació#

Recursos relacionats#