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 relleno
Cada forma tiene un fill_format() que controla cómo se pinta su interior. Los cinco tipos de relleno cubren toda la gama de la paleta de diseño de PowerPoint.
Relleno sólido
El relleno más simple, un color plano con transparencia opcional:
#include <Aspose/Slides/Foss/presentation.h>
using namespace Aspose::Slides::Foss;
Presentation prs;
auto& shape = prs.slides()[0].shapes().add_auto_shape(
ShapeType::RoundCornerRectangle, 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);
Relleno de degradado lineal
Los puntos de degradado te permiten mezclar de un color a otro a lo largo de la forma:
#include <Aspose/Slides/Foss/presentation.h>
using namespace Aspose::Slides::Foss;
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);
2D Visual Effects
Sombra paralela externa
Adjunta una sombra paralela semitransparente a cualquier forma:
#include <Aspose/Slides/Foss/presentation.h>
using namespace Aspose::Slides::Foss;
Presentation prs;
auto& shape = prs.slides()[0].shapes().add_auto_shape(
ShapeType::RoundCornerRectangle, 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();
ef.outer_shadow_effect().set_blur_radius(12);
ef.outer_shadow_effect().set_direction(315); // upper-left
ef.outer_shadow_effect().set_distance(8);
ef.outer_shadow_effect().shadow_color().set_color(Color::from_argb(100, 0, 0, 0));
prs.save("shadow.pptx", SaveFormat::PPTX);
Efecto de resplandor
Un halo coloreado alrededor del borde de la forma:
#include <Aspose/Slides/Foss/presentation.h>
using namespace Aspose::Slides::Foss;
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();
ef.glow_effect().set_radius(20);
ef.glow_effect().color().set_color(Color::from_argb(200, 0, 180, 255));
prs.save("glow.pptx", SaveFormat::PPTX);
3D Formatting
Bisel y Material
El three_d_format() método le da a cualquier forma plana una apariencia tridimensional. Combine un bisel con un ajuste preestablecido de cámara y un material para obtener el resultado más rico:
#include <Aspose/Slides/Foss/presentation.h>
using namespace Aspose::Slides::Foss;
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::PerspectiveAbove);
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);
Combinando efectos en la misma forma
La sombra y el formato 3D pueden coexistir en una sola forma, permitiendo diseños de “card” pulidos:
#include <Aspose/Slides/Foss/presentation.h>
using namespace Aspose::Slides::Foss;
Presentation prs;
auto& shape = prs.slides()[0].shapes().add_auto_shape(
ShapeType::RoundCornerRectangle, 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::PerspectiveAbove);
tdf.set_material(MaterialPresetType::Plastic);
// Drop shadow
auto& ef = shape.effect_format();
ef.enable_outer_shadow_effect();
ef.outer_shadow_effect().set_blur_radius(14);
ef.outer_shadow_effect().set_direction(270);
ef.outer_shadow_effect().set_distance(8);
ef.outer_shadow_effect().shadow_color().set_color(Color::from_argb(70, 0, 0, 0));
prs.save("premium-card.pptx", SaveFormat::PPTX);
Instalación
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)
Sin instalación de Office, sin claves de licencia, sin llamadas a la red; todo el procesamiento se realiza localmente.
