ppt-rs 0.2.12

Create, read, and update PowerPoint 2007+ (.pptx) files with rich formatting, bullet styles, themes, and templates.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121

//! TextFrame - container for paragraphs

use super::paragraph::Paragraph;
use super::TextAnchor;
use crate::core::ToXml;

/// A text frame containing paragraphs
#[derive(Clone, Debug)]
pub struct TextFrame {
    pub paragraphs: Vec<Paragraph>,
    pub anchor: TextAnchor,
    pub wrap: bool,
    pub margin_left: u32,
    pub margin_right: u32,
    pub margin_top: u32,
    pub margin_bottom: u32,
}

impl TextFrame {
    /// Create a new empty text frame
    pub fn new() -> Self {
        TextFrame {
            paragraphs: Vec::new(),
            anchor: TextAnchor::Top,
            wrap: true,
            margin_left: 91440,   // 0.1 inch
            margin_right: 91440,
            margin_top: 45720,    // 0.05 inch
            margin_bottom: 45720,
        }
    }

    /// Create with a single paragraph
    pub fn with_text(text: &str) -> Self {
        let mut tf = Self::new();
        tf.paragraphs.push(Paragraph::with_text(text));
        tf
    }

    /// Add a paragraph
    pub fn add_paragraph(mut self, para: Paragraph) -> Self {
        self.paragraphs.push(para);
        self
    }

    /// Add plain text as a paragraph
    pub fn add_text(mut self, text: &str) -> Self {
        self.paragraphs.push(Paragraph::with_text(text));
        self
    }

    /// Set vertical anchor
    pub fn anchor(mut self, anchor: TextAnchor) -> Self {
        self.anchor = anchor;
        self
    }

    /// Set margins (in EMU)
    pub fn margins(mut self, left: u32, right: u32, top: u32, bottom: u32) -> Self {
        self.margin_left = left;
        self.margin_right = right;
        self.margin_top = top;
        self.margin_bottom = bottom;
        self
    }

    /// Generate XML for this text frame
    pub fn to_xml(&self) -> String {
        let wrap = if self.wrap { "square" } else { "none" };
        
        let mut xml = format!(
            r#"<p:txBody><a:bodyPr wrap="{}" lIns="{}" rIns="{}" tIns="{}" bIns="{}" anchor="{}"/><a:lstStyle/>"#,
            wrap, self.margin_left, self.margin_right, self.margin_top, self.margin_bottom, self.anchor.to_xml()
        );
        
        for para in &self.paragraphs {
            xml.push_str(&para.to_xml());
        }
        
        // Add empty paragraph if none
        if self.paragraphs.is_empty() {
            xml.push_str("<a:p/>");
        }
        
        xml.push_str("</p:txBody>");
        xml
    }
}

impl ToXml for TextFrame {
    fn to_xml(&self) -> String {
        TextFrame::to_xml(self)
    }
}

impl Default for TextFrame {
    fn default() -> Self {
        Self::new()
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::generator::text::TextAlign;

    #[test]
    fn test_text_frame_to_xml() {
        let tf = TextFrame::new()
            .add_paragraph(Paragraph::with_text("Title").align(TextAlign::Center))
            .add_paragraph(Paragraph::with_text("Content"))
            .anchor(TextAnchor::Middle);
        
        let xml = tf.to_xml();
        
        assert!(xml.contains("<p:txBody>"));
        assert!(xml.contains("anchor=\"ctr\""));
        assert!(xml.contains("Title"));
        assert!(xml.contains("Content"));
    }
}