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00023 #include "visdisplay.h"
00024
00025 #include <interfaces/VisualDisplay2DInterface.h>
00026
00027 using namespace fawkes;
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00038 VisualDisplay2D::VisualDisplay2D()
00039 {
00040 __interface = NULL;
00041 }
00042
00043
00044 VisualDisplay2D::~VisualDisplay2D()
00045 {
00046 for (__sit = __shapes.begin(); __sit != __shapes.end(); ++__sit) {
00047 delete __sit->second;
00048 }
00049 __shapes.clear();
00050 }
00051
00052
00053
00054
00055
00056 void
00057 VisualDisplay2D::set_interface(fawkes::VisualDisplay2DInterface *interface)
00058 {
00059 __interface = interface;
00060 }
00061
00062
00063
00064
00065
00066
00067 void
00068 VisualDisplay2D::process_messages()
00069 {
00070 while (! __interface->msgq_empty()) {
00071 if ( __interface->msgq_first_is<VisualDisplay2DInterface::AddCartLineMessage>() ) {
00072 VisualDisplay2DInterface::AddCartLineMessage *m = __interface->msgq_first<VisualDisplay2DInterface::AddCartLineMessage>();
00073 __shapes[m->id()] = new Line(m->x(0), m->y(0), m->x(1), m->y(1),
00074 m->id(), m->sender_id(),
00075 m->style(), m->color(0),
00076 m->color(1), m->color(2), m->color(3));
00077
00078 } else if ( __interface->msgq_first_is<VisualDisplay2DInterface::AddCartRectMessage>() ) {
00079 VisualDisplay2DInterface::AddCartRectMessage *m = __interface->msgq_first<VisualDisplay2DInterface::AddCartRectMessage>();
00080 __shapes[m->id()] = new Rectangle(m->x(), m->y(), m->width(), m->height(),
00081 m->id(), m->sender_id(),
00082 m->style(), m->color(0),
00083 m->color(1), m->color(2), m->color(3));
00084
00085 } else if ( __interface->msgq_first_is<VisualDisplay2DInterface::AddCartCircleMessage>() ) {
00086 VisualDisplay2DInterface::AddCartCircleMessage *m = __interface->msgq_first<VisualDisplay2DInterface::AddCartCircleMessage>();
00087 __shapes[m->id()] = new Circle(m->x(), m->y(), m->radius(),
00088 m->id(), m->sender_id(),
00089 m->style(), m->color(0),
00090 m->color(1), m->color(2), m->color(3));
00091
00092 } else if ( __interface->msgq_first_is<VisualDisplay2DInterface::AddCartTextMessage>() ) {
00093 VisualDisplay2DInterface::AddCartTextMessage *m = __interface->msgq_first<VisualDisplay2DInterface::AddCartTextMessage>();
00094 __shapes[m->id()] = new Text(m->x(), m->y(), m->text(),
00095 m->anchor(), m->size(),
00096 m->id(), m->sender_id(),
00097 m->color(0),
00098 m->color(1), m->color(2), m->color(3));
00099
00100 } else if (__interface->msgq_first_is<VisualDisplay2DInterface::DeleteAllMessage>() ) {
00101 for (__sit = __shapes.begin(); __sit != __shapes.end(); ++__sit) {
00102 delete __sit->second;
00103 }
00104 __shapes.clear();
00105 }
00106
00107 __interface->msgq_pop();
00108 }
00109 }
00110
00111
00112
00113
00114
00115
00116 void
00117 VisualDisplay2D::draw(Cairo::RefPtr<Cairo::Context> cr)
00118 {
00119 cr->save();
00120 for (__sit = __shapes.begin(); __sit != __shapes.end(); ++__sit) {
00121 float r, g, b, a;
00122 __sit->second->color(r, g, b, a);
00123 __sit->second->apply_style(cr);
00124 __sit->second->draw(cr);
00125 }
00126 cr->stroke();
00127 cr->restore();
00128 }
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00179 VisualDisplay2D::Shape::Shape(unsigned int id, unsigned int owner,
00180 VisualDisplay2DInterface::LineStyle line_style,
00181 unsigned char r, unsigned char g,
00182 unsigned char b, unsigned char a)
00183 {
00184 _id = id;
00185 _owner = owner;
00186 _line_style = line_style;
00187 _color_r = r / 255.f;
00188 _color_g = g / 255.f;
00189 _color_b = b / 255.f;
00190 _color_a = a / 255.f;
00191 }
00192
00193
00194
00195 VisualDisplay2D::Shape::~Shape()
00196 {
00197 }
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00219 VisualDisplay2D::Line::Line(float x1, float y1, float x2, float y2,
00220 unsigned int id, unsigned int owner,
00221 VisualDisplay2DInterface::LineStyle line_style,
00222 unsigned char r, unsigned char g,
00223 unsigned char b, unsigned char a)
00224 : Shape(id, owner, line_style, r, g, b, a)
00225 {
00226 __x1 = x1;
00227 __y1 = y1;
00228 __x2 = x2;
00229 __y2 = y2;
00230 }
00231
00232
00233 void
00234 VisualDisplay2D::Line::draw(Cairo::RefPtr<Cairo::Context> &cr)
00235 {
00236 cr->move_to(__x1, __y1);
00237 cr->line_to(__x2, __y2);
00238 cr->stroke();
00239 }
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00263 VisualDisplay2D::Rectangle::Rectangle(float x, float y, float width, float height,
00264 unsigned int id, unsigned int owner,
00265 VisualDisplay2DInterface::LineStyle line_style,
00266 unsigned char r, unsigned char g,
00267 unsigned char b, unsigned char a)
00268 : Shape(id, owner, line_style, r, g, b, a)
00269 {
00270 __x = x;
00271 __y = y;
00272 __width = width;
00273 __height = height;
00274 }
00275
00276
00277 void
00278 VisualDisplay2D::Rectangle::draw(Cairo::RefPtr<Cairo::Context> &cr)
00279 {
00280 cr->rectangle(__x, __y, __width, __height);
00281 }
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00303 VisualDisplay2D::Circle::Circle(float x, float y, float radius,
00304 unsigned int id, unsigned int owner,
00305 VisualDisplay2DInterface::LineStyle line_style,
00306 unsigned char r, unsigned char g,
00307 unsigned char b, unsigned char a)
00308 : Shape(id, owner, line_style, r, g, b, a)
00309 {
00310 __x = x;
00311 __y = y;
00312 __radius = radius;
00313 }
00314
00315
00316 void
00317 VisualDisplay2D::Circle::draw(Cairo::RefPtr<Cairo::Context> &cr)
00318 {
00319 cr->arc(__x, __y, __radius, 0, 2*M_PI);
00320 }
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00343 VisualDisplay2D::Text::Text(float x, float y, std::string text,
00344 fawkes::VisualDisplay2DInterface::Anchor anchor,
00345 float size,
00346 unsigned int id, unsigned int owner,
00347 unsigned char r, unsigned char g,
00348 unsigned char b, unsigned char a)
00349 : Shape(id, owner, fawkes::VisualDisplay2DInterface::LS_SOLID, r, g, b, a)
00350 {
00351 __x = x;
00352 __y = y;
00353 __text = text;
00354 __size = size;
00355 __anchor = anchor;
00356 }
00357
00358
00359 void
00360 VisualDisplay2D::Text::draw(Cairo::RefPtr<Cairo::Context> &cr)
00361 {
00362 cr->save();
00363 cr->scale(-1, 1);
00364 cr->rotate(-0.5 * M_PI);
00365 cr->set_font_size(1.36 * __size);
00366
00367 Cairo::TextExtents te;
00368 cr->get_text_extents(__text, te);
00369
00370 float x = __x, y = __y;
00371 switch (__anchor) {
00372 case VisualDisplay2DInterface::CENTERED:
00373 x = __x - te.width / 2.; y = __y + te.height / 2.; break;
00374 case VisualDisplay2DInterface::NORTH:
00375 x = __x - te.width / 2.; y = __y + te.height; break;
00376 case VisualDisplay2DInterface::EAST:
00377 x = __x - te.width; y = __y + te.height / 2.; break;
00378 case VisualDisplay2DInterface::SOUTH:
00379 x = __x - te.width / 2.; break;
00380 case VisualDisplay2DInterface::WEST:
00381 y = __y + te.height / 2.; break;
00382 case VisualDisplay2DInterface::NORTH_EAST:
00383 x = __x - te.width; y = __y + te.height; break;
00384 case VisualDisplay2DInterface::SOUTH_EAST:
00385 x = __x - te.width; break;
00386 case VisualDisplay2DInterface::SOUTH_WEST:
00387 break;
00388 case VisualDisplay2DInterface::NORTH_WEST:
00389 y = __y + te.height; break;
00390 }
00391
00392 cr->move_to(x, y);
00393 cr->show_text(__text);
00394 cr->restore();
00395 }