ppt-rs 0.2.24

Create, read, and update PowerPoint 2007+ (.pptx) files with rich formatting, bullet styles, themes, and templates.
Documentation 
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//! Additional content rendering (shapes, images, code blocks, connectors)

use crate::generator::shapes_xml::generate_shape_xml;
use crate::generator::slide_content::SlideContent;

/// Render additional content elements (shapes, images, code blocks, connectors, charts, ink)
pub fn render_additional_content(
    xml: &mut String,
    content: &SlideContent,
    chart_rids: &[String],
    ink_rel_id: Option<&str>,
) {
    let extra_elements = content.shapes.len()
        + content.images.len()
        + content.code_blocks.len()
        + content.connectors.len()
        + content.charts.len().min(chart_rids.len())
        + ink_rel_id.map_or(0, |_| 1);
    if extra_elements > 0 {
        xml.reserve(extra_elements * 512);
    }

    // Render shapes - use shape's fixed ID if set, otherwise auto-assign
    for (i, shape) in content.shapes.iter().enumerate() {
        xml.push('\n');
        let shape_id = shape.id.unwrap_or((i + 10) as u32);
        xml.push_str(&generate_shape_xml(shape, shape_id));
    }

    // Render images (actual picture elements, not placeholders)
    let image_start_id = 20 + content.shapes.len();
    let image_rel_start = 2 + usize::from(content.notes.is_some());
    for (i, image) in content.images.iter().enumerate() {
        xml.push('\n');
        let rel_id = image_rel_start + i;
        xml.push_str(&crate::generator::images_xml::generate_image_xml(
            image,
            image_start_id + i,
            rel_id,
        ));
    }

    // Render code blocks with syntax highlighting
    let code_start_id = 30 + content.shapes.len() + content.images.len();
    for (i, code_block) in content.code_blocks.iter().enumerate() {
        xml.push('\n');
        xml.push_str(&generate_code_block(code_start_id + i, code_block));
    }

    // Render connectors
    let connector_start_id =
        50 + content.shapes.len() + content.images.len() + content.code_blocks.len();
    for (i, connector) in content.connectors.iter().enumerate() {
        xml.push('\n');
        let id = connector_start_id + i;
        xml.push_str(&crate::generator::connectors::generate_connector_xml(
            connector, id,
        ));
    }

    // Render charts
    let chart_start_id = 100
        + content.shapes.len()
        + content.images.len()
        + content.code_blocks.len()
        + content.connectors.len();
    for (i, chart) in content.charts.iter().enumerate() {
        if i < chart_rids.len() {
            xml.push('\n');
            let r_id = &chart_rids[i];
            xml.push_str(&crate::generator::charts::generate_chart_ref_xml(
                chart,
                r_id,
                chart_start_id + i,
            ));
        }
    }

    // Render ink annotation reference
    if let Some(rel_id) = ink_rel_id
        && content.ink_annotations.is_some() {
            xml.push('\n');
            xml.push_str(&format!(
                r#"<mc:AlternateContent xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"><mc:Choice Requires="p14"><p:contentPart xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" r:id="{}"/></mc:Choice></mc:AlternateContent>"#,
                rel_id
            ));
        }
}

/// Generate code block XML with syntax highlighting
fn generate_code_block(
    id: usize,
    code_block: &crate::generator::slide_content::CodeBlock,
) -> String {
    // Use syntax highlighting when available, otherwise use plain text
    #[cfg(feature = "syntect")]
    let highlighted_xml =
        crate::cli::syntax::generate_highlighted_code_xml(&code_block.code, &code_block.language);

    #[cfg(not(feature = "syntect"))]
    let highlighted_xml = {
        // Fallback to basic XML without syntax highlighting
        let escaped_code = code_block.code
            .replace('&', "&amp;")
            .replace('<', "&lt;")
            .replace('>', "&gt;");
        format!("<a:t>{}</a:t>", escaped_code)
    };

    let x = code_block.x;
    let y = code_block.y;
    let width = code_block.width;
    let height = code_block.height;

    format!(
        r#"<p:sp>
<p:nvSpPr>
<p:cNvPr id="{id}" name="Code Block"/>
<p:cNvSpPr txBox="1"/>
<p:nvPr/>
</p:nvSpPr>
<p:spPr>
<a:xfrm>
<a:off x="{x}" y="{y}"/>
<a:ext cx="{width}" cy="{height}"/>
</a:xfrm>
<a:prstGeom prst="rect"><a:avLst/></a:prstGeom>
<a:solidFill><a:srgbClr val="002B36"/></a:solidFill>
<a:ln w="12700"><a:solidFill><a:srgbClr val="073642"/></a:solidFill></a:ln>
</p:spPr>
<p:txBody>
<a:bodyPr wrap="square" rtlCol="0" anchor="t" lIns="91440" tIns="45720" rIns="91440" bIns="45720"/>
<a:lstStyle/>
{highlighted_xml}</p:txBody>
</p:sp>"#
    )
}