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text scaling

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git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@168 0fc631ac-6414-0410-93d0-97cfa31319b6
This commit is contained in:
twanvl
2006-12-24 16:04:24 +00:00
parent 99867b0c0b
commit 1ab6b0cb82
7 changed files with 49 additions and 52 deletions
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src/render/text/element.hpp
+7 -24
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@@ -64,30 +64,8 @@ class TextElement {
virtual void getCharInfo(RotatedDC& dc, double scale, vector<CharInfo>& out) const = 0;
/// Return the minimum scale factor allowed (starts at 1)
virtual double minScale() const = 0;
/*
// draw the section <start...end)
// drawSeparators indicates what we should draw, separators or normal text
// h is the height of the current line
virtual void draw(RotatedDC& dc, UInt shrink, RealRect rect, size_t start, size_t end, DrawWhat draw) const = 0;
/// Returns the width and height of the character at charId
virtual RealSize charSize(RotatedDC& dc, double scale, size_t charId) const = 0;
/// May the text be broken after char_id?
virtual BreakAfter breakAfter(size_t char_id) const = 0;
// number of characters in this object
abstract size_t size() const;
// maximum shrink factor allowed
// shrink indicates by how much the thing to render should be shrunk, there is no indication
// what it means (probably pixels or points), but size(shrink = k+1) <= size(shrink = k)
abstract UInt maxShrink() const;
// Size of an entire section
RealSize sectionSize(RotatedDC& dc, double scale, size_t start, size_t end) const;
RealSize for::sectionSize(RotatedDC& dc, double scale, size_t start, size_t end) const {
RealSize size;
for(i = start ; i < end ; ++i) {
size = addHorizontal(size, charSize(dc, scale, i));
}
return size;
}*/
/// Return the steps the scale factor should take
virtual double scaleStep() const = 0;
};
// ----------------------------------------------------------------------------- : TextElements
@@ -101,6 +79,8 @@ class TextElements : public vector<TextElementP> {
void getCharInfo(RotatedDC& dc, double scale, size_t start, size_t end, vector<CharInfo>& out) const;
/// Return the minimum scale factor allowed by all elements
double minScale() const;
/// Return the steps the scale factor should take
double scaleStep() const;
/// The actual elements
/** They must be in order of positions and not overlap, i.e.
@@ -134,6 +114,7 @@ class FontTextElement : public SimpleTextElement {
virtual void draw (RotatedDC& dc, double scale, const RealRect& rect, const double* xs, DrawWhat what, size_t start, size_t end) const;
virtual void getCharInfo(RotatedDC& dc, double scale, vector<CharInfo>& out) const;
virtual double minScale() const;
virtual double scaleStep() const;
private:
FontP font;
DrawWhat draw_as;
@@ -151,6 +132,7 @@ class SymbolTextElement : public SimpleTextElement {
virtual void draw (RotatedDC& dc, double scale, const RealRect& rect, const double* xs, DrawWhat what, size_t start, size_t end) const;
virtual void getCharInfo(RotatedDC& dc, double scale, vector<CharInfo>& out) const;
virtual double minScale() const;
virtual double scaleStep() const;
private:
const SymbolFontRef& font; // owned by TextStyle
Context& ctx;
@@ -166,6 +148,7 @@ class CompoundTextElement : public TextElement {
virtual void draw (RotatedDC& dc, double scale, const RealRect& rect, const double* xs, DrawWhat what, size_t start, size_t end) const;
virtual void getCharInfo(RotatedDC& dc, double scale, vector<CharInfo>& out) const;
virtual double minScale() const;
virtual double scaleStep() const;
TextElements elements; ///< the elements
};