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add marquee + fill

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This commit is contained in:
Alexandre Quessy
2013-11-15 02:19:32 +01:00
parent 0a5ddd03ea
commit 2bd81d9736
1 changed files with 75 additions and 15 deletions
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90
prototypes/wx-polyline/main.cpp
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@@ -13,6 +13,12 @@
//Not necessary, but if it was, it needs to be replaced by process.h AND io.h
#endif
typedef enum
{
LINES = 0,
POLYGON = 1
} Style;
/*
* Left: place point
* Right: remove previous point
@@ -38,10 +44,17 @@ class PolyLine
void clear();
void draw();
unsigned int size();
void setStyle(Style style);
private:
std::vector<Point> points;
Style style;
};
void PolyLine::setStyle(Style style)
{
this->style = style;
}
unsigned int PolyLine::size()
{
return points.size();
@@ -66,23 +79,13 @@ void PolyLine::draw()
{
std::vector<Point>::const_iterator iter;
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
glDisable (GL_TEXTURE_2D);
glEnable(GL_LINE_SMOOTH);
glLineWidth(3.0f);
glPushMatrix ();
glDisable (GL_LIGHTING);
glColor3f (0.2f, 1.0f, 0.2f);
glBegin (GL_LINE_STRIP);
if (style == LINES)
glBegin (GL_LINE_STRIP);
else if (style == POLYGON)
glBegin (GL_POLYGON);
for (iter = points.begin(); iter != points.end(); iter++)
{
glVertex3f ((*iter).x, (*iter).y, 0.0f);
}
glEnd ();
glPopMatrix ();
}
@@ -95,11 +98,18 @@ class Manager
void removeLastPoint();
void draw();
void clear();
void setStyle(Style style);
private:
std::vector<PolyLine> lines;
unsigned int current;
Style style;
};
void Manager::setStyle(Style style)
{
this->style = style;
}
void Manager::addPoint(Point point)
{
if (lines.size() == 0)
@@ -137,9 +147,18 @@ void Manager::removeLastPoint()
void Manager::draw()
{
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
glDisable (GL_TEXTURE_2D);
glEnable(GL_LINE_SMOOTH);
glLineWidth(3.0f);
glDisable (GL_LIGHTING);
glColor3f (0.2f, 1.0f, 0.2f);
std::vector<PolyLine>::iterator iter;
for (iter = lines.begin(); iter != lines.end(); iter++)
{
(*iter).setStyle(style);
(*iter).draw();
}
}
@@ -149,6 +168,40 @@ void Manager::clear()
lines.clear();
}
void draw_marquee(float x, float y)
{
const int length = 30;
const int distance = 10;
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
glDisable (GL_TEXTURE_2D);
glEnable(GL_LINE_SMOOTH);
glLineWidth(3.0f);
glDisable (GL_LIGHTING);
glColor3f (1.0f, 0.0f, 0.0f);
glBegin(GL_LINES);
glVertex3f(x - (length + distance), y, 0.0f);
glVertex3f(x - distance, y, 0.0f);
glEnd();
glBegin(GL_LINES);
glVertex3f(x + (length + distance), y, 0.0f);
glVertex3f(x + distance, y, 0.0f);
glEnd();
glBegin(GL_LINES);
glVertex3f(x, y - (length + distance), 0.0f);
glVertex3f(x, y - distance, 0.0f);
glEnd();
glBegin(GL_LINES);
glVertex3f(x, y + (length + distance), 0.0f);
glVertex3f(x, y + distance, 0.0f);
glEnd();
}
class MyCanvas: public wxGLCanvas
{
void Render();
@@ -161,6 +214,8 @@ class MyCanvas: public wxGLCanvas
void OnMouseEvent (wxMouseEvent& event);
void setup_polyline ();
Manager manager;
float mousex;
float mousey;
};
BEGIN_EVENT_TABLE(MyCanvas, wxGLCanvas)
@@ -184,8 +239,11 @@ void MyCanvas::OnMouseEvent(wxMouseEvent& event)
{
//printf("x=%d y=%d LeftIsDown=%d\n", event.GetX(), event.GetY(), (int) event.LeftIsDown());
bool should_render = false;
Point point = Point((float) event.GetX(), (float) event.GetY());
Point point = Point(mousex, mousey);
mousex = (float) event.GetX();
mousey = (float) event.GetY();
should_render = true;
if (event.LeftIsDown())
{
manager.addPoint(point);
@@ -202,6 +260,7 @@ void MyCanvas::OnMouseEvent(wxMouseEvent& event)
{
manager.addPolyLine(point);
should_render = true;
manager.setStyle(POLYGON);
}
else
{
@@ -245,6 +304,7 @@ void MyCanvas::Render()
glLoadIdentity (); // FIXME? is this needed here?
manager.draw();
draw_marquee(mousex, mousey);
glFlush();
SwapBuffers();