ppt-rs 0.2.37

Create, read, and update PowerPoint 2007+ (.pptx) files with rich formatting, bullet styles, themes, and templates.
Documentation 
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//! Two-column slide layout

use super::common::{ShapePosition, SlideXmlBuilder, TextContent, generate_text_props};
use crate::generator::slide_content::SlideContent;

/// Two-column slide layout generator
pub struct TwoColumnLayout;

impl TwoColumnLayout {
    /// Generate two-column slide XML
    /// Bullets are automatically split between left and right columns
    pub fn generate(content: &SlideContent) -> String {
        let title_size = content.title_size.unwrap_or(44) * 100;
        let content_size = content.content_size.unwrap_or(24) * 100;

        let title_props = generate_text_props(
            title_size,
            content.title_bold,
            content.title_italic,
            content.title_underline,
            content.title_color.as_deref(),
        );

        let content_props = generate_text_props(
            content_size,
            content.content_bold,
            content.content_italic,
            content.content_underline,
            content.content_color.as_deref(),
        );

        let mut builder = SlideXmlBuilder::new()
            .start_slide_with_bg()
            .start_sp_tree()
            .add_title(
                2,
                ShapePosition::new(457200, 274638, 8230200, 914400),
                TextContent::new(&content.title, &title_props),
                "title",
            );

        // Determine which bullets to use
        let use_styled_bullets = !content.bullets.is_empty();
        let bullet_count = if use_styled_bullets {
            content.bullets.len()
        } else {
            content.content.len()
        };

        if bullet_count > 0 {
            let mid = bullet_count.div_ceil(2);

            // Left column
            builder = builder.raw(
                r#"
<p:sp>
<p:nvSpPr>
<p:cNvPr id="3" name="Left Content"/>
<p:cNvSpPr><a:spLocks noGrp="1"/></p:cNvSpPr>
<p:nvPr><p:ph type="body" idx="1"/></p:nvPr>
</p:nvSpPr>
<p:spPr>
<a:xfrm>
<a:off x="457200" y="1189200"/>
<a:ext cx="4115100" cy="5668800"/>
</a:xfrm>
<a:prstGeom prst="rect"><a:avLst/></a:prstGeom>
<a:noFill/>
</p:spPr>
<p:txBody>
<a:bodyPr/>
<a:lstStyle/>
"#,
            );

            if use_styled_bullets {
                for bullet in &content.bullets[..mid] {
                    builder = builder.add_bullet_with_style(
                        &bullet.text,
                        &content_props,
                        bullet.level,
                        bullet.style,
                    );
                }
            } else {
                for bullet in &content.content[..mid] {
                    builder = builder.add_bullet_with_style(
                        bullet,
                        &content_props,
                        0,
                        content.bullet_style,
                    );
                }
            }
            builder = builder.raw("</p:txBody>\n</p:sp>\n");

            // Right column
            if mid < bullet_count {
                builder = builder.raw(
                    r#"
<p:sp>
<p:nvSpPr>
<p:cNvPr id="4" name="Right Content"/>
<p:cNvSpPr><a:spLocks noGrp="1"/></p:cNvSpPr>
<p:nvPr><p:ph type="body" idx="2"/></p:nvPr>
</p:nvSpPr>
<p:spPr>
<a:xfrm>
<a:off x="4572300" y="1189200"/>
<a:ext cx="4115100" cy="5668800"/>
</a:xfrm>
<a:prstGeom prst="rect"><a:avLst/></a:prstGeom>
<a:noFill/>
</p:spPr>
<p:txBody>
<a:bodyPr/>
<a:lstStyle/>
"#,
                );

                if use_styled_bullets {
                    for bullet in &content.bullets[mid..] {
                        builder = builder.add_bullet_with_style(
                            &bullet.text,
                            &content_props,
                            bullet.level,
                            bullet.style,
                        );
                    }
                } else {
                    for bullet in &content.content[mid..] {
                        builder = builder.add_bullet_with_style(
                            bullet,
                            &content_props,
                            0,
                            content.bullet_style,
                        );
                    }
                }
                builder = builder.raw("</p:txBody>\n</p:sp>\n");
            }
        }

        builder.end_sp_tree().end_slide().build()
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_two_column_layout() {
        let content = SlideContent::new("Comparison")
            .add_bullet("Left 1")
            .add_bullet("Left 2")
            .add_bullet("Right 1")
            .add_bullet("Right 2");
        let xml = TwoColumnLayout::generate(&content);

        assert!(xml.contains("Left Content"));
        assert!(xml.contains("Right Content"));
        assert!(xml.contains("Left 1"));
        assert!(xml.contains("Right 1"));
    }
}