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Because merging is going to be fun.
[ipdf/code.git]
/
src
/
document.cpp
diff --git
a/src/document.cpp
b/src/document.cpp
index
9cb5aa8
..
5890730
100644
(file)
--- a/
src/document.cpp
+++ b/
src/document.cpp
@@
-105,6
+105,7
@@
int Document::ClipObjectToQuadChild(int object_id, QuadTreeNodeChildren type)
{
case RECT_FILLED:
case RECT_OUTLINE:
+ case PATH:
{
Rect obj_bounds = TransformToQuadChild(m_objects.bounds[object_id], type);
if (obj_bounds.x < 0)
@@
-130,6
+131,32
@@
int Document::ClipObjectToQuadChild(int object_id, QuadTreeNodeChildren type)
m_objects.data_indices.push_back(m_objects.data_indices[object_id]);
return 1;
}
+ case BEZIER:
+ {
+ // If we're entirely within the quadtree node, no clipping need occur.
+ if (ContainedInQuadChild(m_objects.bounds[object_id], type))
+ {
+ m_objects.bounds.push_back(TransformToQuadChild(m_objects.bounds[object_id], type));
+ m_objects.types.push_back(m_objects.types[object_id]);
+ m_objects.data_indices.push_back(m_objects.data_indices[object_id]);
+ return 1;
+ }
+ Rect clip_bezier_bounds = TransformRectCoordinates(m_objects.bounds[object_id], TransformFromQuadChild(Rect{0,0,1,1}, type));
+ std::vector<Bezier> new_curves = m_objects.beziers[m_objects.data_indices[object_id]].ClipToRectangle(clip_bezier_bounds);
+ for (size_t i = 0; i < new_curves.size(); ++i)
+ {
+ Rect new_bounds = TransformToQuadChild(m_objects.bounds[object_id], type);
+ Bezier new_curve_data = new_curves[i].ToAbsolute(TransformToQuadChild(m_objects.bounds[object_id],type));
+ new_bounds = new_curve_data.SolveBounds();
+ Debug("New bounds: %s", new_bounds.Str().c_str());
+ new_curve_data = new_curve_data.ToRelative(new_bounds);
+ unsigned index = AddBezierData(new_curve_data);
+ m_objects.bounds.push_back(new_bounds);
+ m_objects.types.push_back(BEZIER);
+ m_objects.data_indices.push_back(index);
+ }
+ return new_curves.size();
+ }
default:
Debug("Adding %s -> %s", m_objects.bounds[object_id].Str().c_str(), TransformToQuadChild(m_objects.bounds[object_id], type).Str().c_str());
m_objects.bounds.push_back(TransformToQuadChild(m_objects.bounds[object_id], type));
@@
-254,6
+281,11
@@
void Document::Load(const string & filename)
Debug("Bezier data...");
LoadStructVector<Bezier>(file, chunk_size/sizeof(Bezier), m_objects.beziers);
break;
+
+ case CT_OBJPATHS:
+ Debug("Path data...");
+ Warn("Not handled because lazy");
+ break;
}
}
Debug("Successfully loaded %u objects from \"%s\"", ObjectCount(), filename.c_str());
@@
-265,12
+297,39
@@
void Document::Load(const string & filename)
#endif
}
-void Document::Add(ObjectType type, const Rect & bounds, unsigned data_index)
+unsigned Document::AddPath(unsigned start_index, unsigned end_index, const Colour & fill, const Colour & stroke)
+{
+ Path path(m_objects, start_index, end_index, fill, stroke);
+ unsigned data_index = AddPathData(path);
+ Rect bounds = path.SolveBounds(m_objects);
+ unsigned result = Add(PATH, bounds,data_index);
+ //Debug("Added path %u -> %u (%u objects) colour {%u,%u,%u,%u}, stroke {%u,%u,%u,%u}", start_index, end_index, (end_index - start_index), fill.r, fill.g, fill.b, fill.a, stroke.r, stroke.g, stroke.b, stroke.a);
+ return result;
+}
+
+/**
+ * Add a Bezier using Absolute coords
+ */
+unsigned Document::AddBezier(const Bezier & bezier)
+{
+ Rect bounds = bezier.SolveBounds();
+ Bezier data = bezier.ToRelative(bounds); // Relative
+ if (data.ToAbsolute(bounds) != bezier)
+ {
+ Warn("%s != %s", data.ToAbsolute(Rect(0,0,1,1)).Str().c_str(),
+ bezier.Str().c_str());
+ Warn("ToAbsolute on ToRelative does not give original Bezier");
+ }
+ unsigned index = AddBezierData(data);
+ return Add(BEZIER, bounds, index);
+}
+
+unsigned Document::Add(ObjectType type, const Rect & bounds, unsigned data_index)
{
m_objects.types.push_back(type);
m_objects.bounds.push_back(bounds);
m_objects.data_indices.push_back(data_index);
-
++m_count
; // Why can't we just use the size of types or something?
+
return (m_count++)
; // Why can't we just use the size of types or something?
}
unsigned Document::AddBezierData(const Bezier & bezier)
@@
-279,6
+338,11
@@
unsigned Document::AddBezierData(const Bezier & bezier)
return m_objects.beziers.size()-1;
}
+unsigned Document::AddPathData(const Path & path)
+{
+ m_objects.paths.push_back(path);
+ return m_objects.paths.size()-1;
+}
void Document::DebugDumpObjects()
{
@@
-336,6
+400,22
@@
static void GetXYPair(const string & d, Real & x, Real & y, unsigned & i,const s
y = strtod(GetToken(d, token, i, delims).c_str(),NULL);
}
+static bool GetKeyValuePair(const string & d, string & key, string & value, unsigned & i, const string & delims = "()[],{}<>;:=")
+{
+ key = "";
+ string token;
+ while (GetToken(d, token, i, delims) == ":" || token == ";");
+ key = token;
+ if (GetToken(d, token, i, delims) != ":")
+ {
+ Error("Expected \":\" seperating key:value pair");
+ return false;
+ }
+ value = "";
+ GetToken(d, value, i, delims);
+ return true;
+}
+
static void TransformXYPair(Real & x, Real & y, const SVGMatrix & transform)
{
Real x0(x);
@@
-345,7
+425,7
@@
static void TransformXYPair(Real & x, Real & y, const SVGMatrix & transform)
void Document::ParseSVGTransform(const string & s, SVGMatrix & transform)
{
- Debug("Parsing transform %s", s.c_str());
+
//
Debug("Parsing transform %s", s.c_str());
string token;
string command;
unsigned i = 0;
@@
-360,7
+440,7
@@
void Document::ParseSVGTransform(const string & s, SVGMatrix & transform)
else
return;
}
- Debug("Token is \"%s\"", command.c_str());
+
//
Debug("Token is \"%s\"", command.c_str());
SVGMatrix delta = {1,0,0,0,1,0};
@@
-399,8
+479,8
@@
void Document::ParseSVGTransform(const string & s, SVGMatrix & transform)
Warn("Unrecognised transform \"%s\", using identity", command.c_str());
}
- Debug("Old transform is {%f,%f,%f,%f,%f,%f}", transform.a, transform.b, transform.c, transform.d,transform.e,transform.f);
- Debug("Delta transform is {%f,%f,%f,%f,%f,%f}", delta.a, delta.b, delta.c, delta.d,delta.e,delta.f);
+
//
Debug("Old transform is {%f,%f,%f,%f,%f,%f}", transform.a, transform.b, transform.c, transform.d,transform.e,transform.f);
+
//
Debug("Delta transform is {%f,%f,%f,%f,%f,%f}", delta.a, delta.b, delta.c, delta.d,delta.e,delta.f);
SVGMatrix old(transform);
transform.a = old.a * delta.a + old.c * delta.b;
@@
-411,13
+491,41
@@
void Document::ParseSVGTransform(const string & s, SVGMatrix & transform)
transform.d = old.b * delta.c + old.d * delta.d;
transform.f = old.b * delta.e + old.d * delta.f + old.f;
- Debug("New transform is {%f,%f,%f,%f,%f,%f}", transform.a, transform.b, transform.c, transform.d,transform.e,transform.f);
+ //Debug("New transform is {%f,%f,%f,%f,%f,%f}", transform.a, transform.b, transform.c, transform.d,transform.e,transform.f);
+ }
+}
+
+inline Colour ParseColourString(const string & colour_str)
+{
+ Colour c(0,0,0,0);
+ if (colour_str == "red")
+ c = {255,0,0,255};
+ else if (colour_str == "blue")
+ c = {0,0,255,255};
+ else if (colour_str == "green")
+ c = {0,255,0,255};
+ else if (colour_str == "black")
+ c = {0,0,0,255};
+ else if (colour_str == "white")
+ c = {255,255,255,255};
+ else if (colour_str.size() == 7 && colour_str[0] == '#')
+ {
+ Debug("Parse colour string: \"%s\"", colour_str.c_str());
+ char comp[3] = {colour_str[1], colour_str[2], '\0'};
+ c.r = strtoul(comp, NULL, 16);
+ comp[0] = colour_str[3]; comp[1] = colour_str[4];
+ c.g = strtoul(comp, NULL, 16);
+ comp[0] = colour_str[5]; comp[1] = colour_str[6];
+ c.b = strtoul(comp, NULL, 16);
+ c.a = 255;
+ Debug("Colour is: %u, %u, %u, %u", c.r, c.g, c.b, c.a);
}
+ return c;
}
void Document::ParseSVGNode(pugi::xml_node & root, SVGMatrix & parent_transform)
{
- Debug("Parse node <%s>", root.name());
+
//
Debug("Parse node <%s>", root.name());
for (pugi::xml_node child = root.first_child(); child; child = child.next_sibling())
@@
-429,6
+537,8
@@
void Document::ParseSVGNode(pugi::xml_node & root, SVGMatrix & parent_transform)
ParseSVGTransform(attrib_trans.as_string(), transform);
}
+
+
if (strcmp(child.name(), "svg") == 0 || strcmp(child.name(),"g") == 0
|| strcmp(child.name(), "group") == 0)
{
@@
-439,8
+549,63
@@
void Document::ParseSVGNode(pugi::xml_node & root, SVGMatrix & parent_transform)
else if (strcmp(child.name(), "path") == 0)
{
string d = child.attribute("d").as_string();
- Debug("Path data attribute is \"%s\"", d.c_str());
- ParseSVGPathData(d, transform);
+ //Debug("Path data attribute is \"%s\"", d.c_str());
+ bool closed = false;
+ pair<unsigned, unsigned> range = ParseSVGPathData(d, transform, closed);
+ if (true)//(closed)
+ {
+
+ string colour_str("");
+ map<string, string> style;
+ if (child.attribute("style"))
+ {
+ ParseSVGStyleData(child.attribute("style").as_string(), style);
+ }
+
+ // Determine shading colour
+ if (child.attribute("fill"))
+ {
+ colour_str = child.attribute("fill").as_string();
+ }
+ else if (style.find("fill") != style.end())
+ {
+ colour_str = style["fill"];
+ }
+ Colour fill = ParseColourString(colour_str);
+ Colour stroke = fill;
+
+ if (child.attribute("stroke"))
+ {
+ colour_str = child.attribute("stroke").as_string();
+ stroke = ParseColourString(colour_str);
+ }
+ else if (style.find("stroke") != style.end())
+ {
+ colour_str = style["stroke"];
+ stroke = ParseColourString(colour_str);
+ }
+
+
+ // Determin shading alpha
+ if (child.attribute("fill-opacity"))
+ {
+ fill.a = 255*child.attribute("fill-opacity").as_float();
+ }
+ else if (style.find("fill-opacity") != style.end())
+ {
+ fill.a = 255*strtod(style["fill-opacity"].c_str(), NULL);
+ }
+ if (child.attribute("stroke-opacity"))
+ {
+ stroke.a = 255*child.attribute("stroke-opacity").as_float();
+ }
+ else if (style.find("stroke-opacity") != style.end())
+ {
+ stroke.a = 255*strtod(style["stroke-opacity"].c_str(), NULL);
+ }
+ AddPath(range.first, range.second, fill, stroke);
+ }
+
}
else if (strcmp(child.name(), "line") == 0)
{
@@
-450,8
+615,7
@@
void Document::ParseSVGNode(pugi::xml_node & root, SVGMatrix & parent_transform)
Real y1(child.attribute("y2").as_float());
TransformXYPair(x0,y0,transform);
TransformXYPair(x1,y1,transform);
- unsigned index = AddBezierData(Bezier(x0,y0,x1,y1,x1,y1,x1,y1));
- Add(BEZIER, Rect(0,0,1,1), index);
+ AddBezier(Bezier(x0,y0,x1,y1,x1,y1,x1,y1));
}
else if (strcmp(child.name(), "rect") == 0)
{
@@
-498,6
+662,35
@@
void Document::ParseSVGNode(pugi::xml_node & root, SVGMatrix & parent_transform)
}
}
+void Document::ParseSVGStyleData(const string & style, map<string, string> & results)
+{
+ unsigned i = 0;
+ string key;
+ string value;
+ while (i < style.size() && GetKeyValuePair(style, key, value, i))
+ {
+ results[key] = value;
+ }
+}
+
+/**
+ * Parse an SVG string into a rectangle
+ */
+void Document::ParseSVG(const string & input, const Rect & bounds)
+{
+ using namespace pugi;
+
+ xml_document doc_xml;
+ xml_parse_result result = doc_xml.load(input.c_str());
+
+ if (!result)
+ Error("Couldn't parse SVG input - %s", result.description());
+
+ Debug("Loaded XML - %s", result.description());
+ SVGMatrix transform = {bounds.w, 0,bounds.x, 0,bounds.h,bounds.y};
+ ParseSVGNode(doc_xml, transform);
+}
+
/**
* Load an SVG into a rectangle
*/
@@
-510,7
+703,7
@@
void Document::LoadSVG(const string & filename, const Rect & bounds)
xml_parse_result result = doc_xml.load(input);
if (!result)
-
Fatal
("Couldn't load \"%s\" - %s", filename.c_str(), result.description());
+
Error
("Couldn't load \"%s\" - %s", filename.c_str(), result.description());
Debug("Loaded XML - %s", result.description());
@@
-524,8
+717,9
@@
void Document::LoadSVG(const string & filename, const Rect & bounds)
// Fear the wrath of the tokenizing svg data
// Seriously this isn't really very DOM-like at all is it?
-
void Document::ParseSVGPathData(const string & d, const SVGMatrix & transform
)
+
pair<unsigned, unsigned> Document::ParseSVGPathData(const string & d, const SVGMatrix & transform, bool & closed
)
{
+ closed = false;
Real x[4] = {0,0,0,0};
Real y[4] = {0,0,0,0};
@@
-540,9
+734,12
@@
void Document::ParseSVGPathData(const string & d, const SVGMatrix & transform)
bool start = false;
- static string delims("()[],{}<>;:=LlmMqQzZcC");
+
+ static string delims("()[],{}<>;:=LlHhVvmMqQzZcC");
+
+ pair<unsigned, unsigned> range(m_count, m_count);
- while (i < d.size() && GetToken(d, token, i).size() > 0)
+ while (i < d.size() && GetToken(d, token, i
, delims
).size() > 0)
{
if (isalpha(token[0]))
command = token;
@@
-565,6
+762,8
@@
void Document::ParseSVGPathData(const string & d, const SVGMatrix & transform)
x[0] = (relative) ? x[0] + dx : dx;
y[0] = (relative) ? y[0] + dy : dy;
+ x0 = x[0];
+ y0 = y[0];
//Debug("mmoveto %f,%f", Float(x[0]),Float(y[0]));
command = (command == "m") ? "l" : "L";
}
@@
-609,9
+808,7
@@
void Document::ParseSVGPathData(const string & d, const SVGMatrix & transform)
for (int j = 0; j < 4; ++j)
TransformXYPair(x[j],y[j], transform);
- unsigned index = AddBezierData(Bezier(x[0],y[0],x[1],y[1],x[2],y[2],x[3],y[3]));
- Add(BEZIER,Rect(0,0,1,1),index);
-
+ range.second = AddBezier(Bezier(x[0],y[0],x[1],y[1],x[2],y[2],x[3],y[3]));
//Debug("[%u] curveto %f,%f %f,%f %f,%f", index, Float(x[1]),Float(y[1]),Float(x[2]),Float(y[2]),Float(x[3]),Float(y[3]));
@@
-620,16
+817,32
@@
void Document::ParseSVGPathData(const string & d, const SVGMatrix & transform)
}
- else if (command == "l" || command == "L")
+ else if (command == "l" || command == "L"
|| command == "h" || command == "H" || command == "v" || command == "V"
)
{
- Debug("Construct lineto command, relative %d", relative);
+
//
Debug("Construct lineto command, relative %d", relative);
Real dx = Real(strtod(GetToken(d,token,i,delims).c_str(),NULL));
- assert(GetToken(d,token,i,delims) == ",");
- Real dy = Real(strtod(GetToken(d,token,i,delims).c_str(),NULL));
+ Real dy;
+ if (command == "l" || command == "L")
+ {
+ assert(GetToken(d,token,i,delims) == ",");
+ dy = Real(strtod(GetToken(d,token,i,delims).c_str(),NULL));
+ }
+ else if (command == "v" || command == "V")
+ {
+ swap(dx,dy);
+ }
x[1] = (relative) ? x[0] + dx : dx;
y[1] = (relative) ? y[0] + dy : dy;
+ if (command == "v" || command == "V")
+ {
+ x[1] = x[0];
+ }
+ else if (command == "h" || command == "H")
+ {
+ y[1] = y[0];
+ }
Real x1(x[1]);
Real y1(y[1]);
@@
-638,8
+851,7
@@
void Document::ParseSVGPathData(const string & d, const SVGMatrix & transform)
TransformXYPair(x[1],y[1],transform);
- unsigned index = AddBezierData(Bezier(x[0],y[0],x[1],y[1],x[1],y[1],x[1],y[1]));
- Add(BEZIER,Rect(0,0,1,1),index);
+ range.second = AddBezier(Bezier(x[0],y[0],x[1],y[1],x[1],y[1],x[1],y[1]));
//Debug("[%u] lineto %f,%f %f,%f", index, Float(x[0]),Float(y[0]),Float(x[1]),Float(y[1]));
@@
-662,14
+874,13
@@
void Document::ParseSVGPathData(const string & d, const SVGMatrix & transform)
for (int j = 0; j < 4; ++j)
TransformXYPair(x[j],y[j], transform);
- unsigned index = AddBezierData(Bezier(x[0],y[0],x[1],y[1],x[2],y[2],x[3],y[3]));
- Add(BEZIER,Rect(0,0,1,1),index);
-
+ range.second = AddBezier(Bezier(x[0],y[0],x[1],y[1],x[2],y[2],x[3],y[3]));
//Debug("[%u] returnto %f,%f %f,%f", index, Float(x[0]),Float(y[0]),Float(x[1]),Float(y[1]));
x[0] = x3;
y[0] = y3;
command = "m";
+ closed = true;
}
else
{
@@
-685,6
+896,7
@@
void Document::ParseSVGPathData(const string & d, const SVGMatrix & transform)
}
prev_i = i;
}
+ return range;
}
void Document::SetFont(const string & font_filename)
@@
-694,7
+906,7
@@
void Document::SetFont(const string & font_filename)
free(m_font_data);
}
- FILE *font_file = fopen(
"DejaVuSansMono.ttf"
, "rb");
+ FILE *font_file = fopen(
font_filename.c_str()
, "rb");
fseek(font_file, 0, SEEK_END);
size_t font_file_size = ftell(font_file);
fseek(font_file, 0, SEEK_SET);
@@
-716,11
+928,12
@@
void Document::AddText(const string & text, Real scale, Real x, Real y)
return;
}
- float font_scale = stbtt_ScaleForPixelHeight(&m_font, scale);
Real x0(x);
//Real y0(y);
int ascent = 0, descent = 0, line_gap = 0;
stbtt_GetFontVMetrics(&m_font, &ascent, &descent, &line_gap);
+ Real font_scale = scale;
+ font_scale /= Real(ascent - descent);
Real y_advance = Real(font_scale) * Real(ascent - descent + line_gap);
for (unsigned i = 0; i < text.size(); ++i)
{
@@
-734,13
+947,13
@@
void Document::AddText(const string & text, Real scale, Real x, Real y)
int advance_width = 0, left_side_bearing = 0, kerning = 0;
stbtt_GetCodepointHMetrics(&m_font, text[i], &advance_width, &left_side_bearing);
- if (i > 1)
+ if (i >
=
1)
{
kerning = stbtt_GetCodepointKernAdvance(&m_font, text[i-1], text[i]);
}
- x +=
Real(font_scale) * Real(left_side_bearing +
kerning);
+ x +=
font_scale * Real(
kerning);
AddFontGlyphAtPoint(&m_font, text[i], font_scale, x, y);
- x +=
Real(font_scale)
* Real(advance_width);
+ x +=
font_scale
* Real(advance_width);
}
}
@@
-758,7
+971,8
@@
void Document::AddFontGlyphAtPoint(stbtt_fontinfo *font, int character, Real sca
int num_instructions = stbtt_GetGlyphShape(font, glyph_index, &instructions);
Real current_x(0), current_y(0);
-
+ unsigned start_index = m_count;
+ unsigned end_index = m_count;
for (int i = 0; i < num_instructions; ++i)
{
// TTF uses 16-bit signed ints for coordinates:
@@
-771,7
+985,7
@@
void Document::AddFontGlyphAtPoint(stbtt_fontinfo *font, int character, Real sca
Real old_x(current_x), old_y(current_y);
current_x = inst_x;
current_y = inst_y;
- unsigned bezier_index;
+
switch(instructions[i].type)
{
// Move To
@@
-779,8
+993,7
@@
void Document::AddFontGlyphAtPoint(stbtt_fontinfo *font, int character, Real sca
break;
// Line To
case STBTT_vline:
- bezier_index = AddBezierData(Bezier(old_x + x, old_y + y, old_x + x, old_y + y, current_x + x, current_y + y, current_x + x, current_y + y));
- Add(BEZIER,Rect(0,0,1,1),bezier_index);
+ end_index = AddBezier(Bezier(old_x + x, old_y + y, old_x + x, old_y + y, current_x + x, current_y + y, current_x + x, current_y + y));
break;
// Quadratic Bezier To:
case STBTT_vcurve:
@@
-788,12
+1001,17
@@
void Document::AddFontGlyphAtPoint(stbtt_fontinfo *font, int character, Real sca
// - Endpoints are the same.
// - cubic1 = quad0+(2/3)*(quad1-quad0)
// - cubic2 = quad2+(2/3)*(quad1-quad2)
-
bezier_index = AddBezierData
(Bezier(old_x + x, old_y + y, old_x + Real(2)*(inst_cx-old_x)/Real(3) + x, old_y + Real(2)*(inst_cy-old_y)/Real(3) + y,
+
end_index = AddBezier
(Bezier(old_x + x, old_y + y, old_x + Real(2)*(inst_cx-old_x)/Real(3) + x, old_y + Real(2)*(inst_cy-old_y)/Real(3) + y,
current_x + Real(2)*(inst_cx-current_x)/Real(3) + x, current_y + Real(2)*(inst_cy-current_y)/Real(3) + y, current_x + x, current_y + y));
- Add(BEZIER,Rect(0,0,1,1),bezier_index);
break;
}
}
+
+ if (start_index < m_count && end_index < m_count)
+ {
+ AddPath(start_index, end_index);
+ }
+ //Debug("Added Glyph \"%c\" at %f %f, scale %f", (char)character, Float(x), Float(y), Float(scale));
stbtt_FreeShape(font, instructions);
}
UCC
git Repository :: git.ucc.asn.au