C++ 用 Aspose.Slides FOSS
C++ から PowerPoint プレゼンテーションを作成、読み取り、編集できます — 無料でオープンソース、Office への依存は不要です。
PowerPoint プレゼンテーション用のオープンソース C++ ライブラリ
Aspose.Slides FOSS for C++ は、PowerPoint の .pptx ファイルを扱うための MIT ライセンスのライブラリです。CMake FetchContent を使用して統合すれば、Microsoft Office や任意のプロプライエタリランタイムをインストールせずに、すぐにプレゼンテーションの作成、読み取り、編集を開始できます。
このライブラリは、PowerPoint 自体が使用する概念モデルである Presentation、Slide、ShapeCollection、TextFrame、Paragraph、Portion を中心とした Presentation API を提供します。スライドの追加・削除、AutoShape、テーブル、コネクタの挿入、太字・斜体・フォントサイズ・色による文字レベルのテキスト書式設定、単色またはグラデーションの塗りつぶしの適用、そして視覚効果（影、光彩、ぼかし、反射）の追加が可能です。
RAII セマンティクスにより信頼性の高いリソースクリーンアップが保証され、Presentation デストラクタが内部状態を自動的に解放します。ロード時に遭遇した未知の XML パーツは、保存時にそのまま保持されるため、往復処理（ラウンドトリップ）でライブラリがまだ理解できないコンテンツが破壊されることはありません。
このライブラリは C++20 準拠のコンパイラが必要です。
Presentation and Slide API
- Create and open PPTX: Create new presentations or open existing
.pptxfiles viaPresentation()orPresentation(path). - Add and remove slides: Programmatically manage the
SlideCollectionwithadd_empty_slide(),remove(), andremove_at(). - AutoShapes: Insert rectangles, ellipses, lines, and other
ShapeTypegeometries viaadd_auto_shape(). - Tables and Connectors: Add structured table shapes and connector lines between shapes via
add_connector(). - Speaker notes: Read and write per-slide speaker notes through
NotesSlideManager. - Threaded comments: Access comment threads by iterating
pres.comment_authors()and their associated comments.
Where Aspose.Slides FOSS Can Be Used
- Report generation: Build branded slide decks from data sources without Office.
- Template automation: Fill PPTX templates with dynamic content in CI/CD pipelines.
- Content migration: Read existing presentations and restructure or re-style slides.
- Embedded systems: Process PPTX files in performance-critical or resource-constrained environments.
- Batch processing: Apply uniform formatting changes across large slide deck libraries.
Text Formatting and Visual Effects
- Character-level formatting: Apply bold, italic, font size, and color to individual
Portionobjects viaPortionFormat. - Solid and gradient fills: Set shape fill to a solid color or multi-stop linear gradient using
FillFormatandFillType. - Shadow and glow effects: Apply outer shadow, glow, blur, and reflection to any shape via
EffectFormat. - Paragraph alignment: Set left, center, right, or justify alignment per paragraph using
ParagraphFormatandset_alignment(). - Round-trip safe: Unknown XML parts are preserved verbatim on re-save.
Developer Experience
Aspose.Slides FOSS integrates via CMake FetchContent, so no manual download or system-wide installation is needed. The library builds from source alongside your project.
The API mirrors PowerPoint’s own object model (Presentation, Slide, ShapeCollection, TextFrame, Paragraph, Portion), so anyone familiar with the PowerPoint object model can use the library immediately. It is MIT-licensed, open-source on GitHub, and requires a C++20-compliant compiler.
Create a Presentation and Add a Shape
RAII ensures the Presentation destructor releases all resources automatically when the object goes out of scope. add_auto_shape() takes a ShapeType enum, then x/y position and width/height in points — the shape’s text_frame provides access to set text content.
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)
#include <Aspose/Slides/Foss/auto_shape.h>
#include <Aspose/Slides/Foss/export/save_format.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>
int main() {
Aspose::Slides::Foss::Presentation prs;
auto& slide = prs.slides()[0];
// Add a rectangle AutoShape
auto& shape = slide.shapes().add_auto_shape(
Aspose::Slides::Foss::ShapeType::RECTANGLE,
50, 50, 400, 150
);
shape.text_frame()->set_text("Hello, Aspose.Slides!");
prs.save("output.pptx", Aspose::Slides::Foss::SaveFormat::PPTX);
return 0;
}
Format Text and Apply a Fill Effect
Text formatting works at the Portion level — the smallest unit of a run of characters. Open the saved file, navigate to the first portion of the first paragraph, and set font properties directly. Shape fill is independent: set the fill type to solid and assign a color.
#include <Aspose/Slides/Foss/presentation.h>
namespace asf = Aspose::Slides::Foss;
int main() {
asf::Presentation prs("output.pptx");
auto& shape = prs.slides()[0].shapes()[0];
auto& portion = shape.text_frame()
->paragraphs()[0].portions()[0];
// Bold, 18pt text
portion.portion_format().set_font_bold(asf::NullableBool::TRUE);
portion.portion_format().set_font_height(18);
// Solid background fill on the shape
shape.fill_format().set_fill_type(asf::FillType::SOLID);
prs.save("formatted.pptx", asf::SaveFormat::PPTX);
return 0;
}
よくある質問
What is Aspose.Slides FOSS for C++?
It is a free, MIT-licensed C++ library for creating, reading, and editing PowerPoint .pptx presentations without requiring Microsoft Office.
Which file formats are supported?
PPTX is the supported read/write format. Export to PDF, HTML, SVG, or images is not available in this edition.
Does it require Microsoft Office or PowerPoint?
No. Aspose.Slides FOSS is a standalone C++ library with no dependency on Microsoft Office, COM automation, or any proprietary runtime.
How do I install it?
Use CMake FetchContent to integrate the library directly from GitHub. The library requires a C++20-compliant compiler.
Can I apply visual effects like shadow and glow?
Yes. The library supports outer shadow, glow, blur, and reflection effects on any shape object via the EffectFormat API.
Does the library use RAII for resource management?
Yes. The Presentation destructor releases all internal state automatically, so no explicit cleanup is needed.
Will round-tripping a PPTX destroy unknown content?
No. Unknown XML parts encountered during load are preserved verbatim on save, so content the library does not yet understand is never lost.
Where can I find the source code?
The library is MIT-licensed and hosted on GitHub. Bug reports and pull requests are welcome.
