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- changed rubberband rendering mode (now draws in XOR) 

- added secondary rendering function of line A->B (with no side-effects)
This commit is contained in:
Marco Callieri 2015-11-10 16:51:43 +00:00
parent 35ed4897f6
commit f66fed8c6a
2 changed files with 69 additions and 9 deletions
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64
wrap/gui/rubberband.cpp
View File

@ -79,13 +79,15 @@ void Rubberband::Render(QGLWidget* gla)
glDepthMask(false);
glLineWidth(2.5);
glPointSize(5.0);
if(currentphase==RUBBER_DRAGGING ) {
if(currentphase==RUBBER_DRAGGING )
{
Point2f qt_start_point = DevicePixelConvert(start);
glColor(color);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
gluOrtho2D(0,QTLogicalToDevice(gla,gla->width()),QTLogicalToDevice(gla,gla->height()),0);
gluOrtho2D(0, QTLogicalToDevice(gla,gla->width()), QTLogicalToDevice(gla,gla->height()), 0);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
@ -99,13 +101,17 @@ void Rubberband::Render(QGLWidget* gla)
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
} else {
}
else
{
assert(currentphase == RUBBER_DRAGGED);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
glBlendFunc(GL_ONE_MINUS_DST_COLOR, GL_ONE_MINUS_SRC_COLOR);
glEnable(GL_LINE_SMOOTH);
glEnable(GL_POINT_SMOOTH);
glColor(color);
glLineWidth(2.0);
glPointSize(4.0);
glBegin(GL_LINES);
glVertex(start);
glVertex(end);
@ -114,9 +120,9 @@ void Rubberband::Render(QGLWidget* gla)
glVertex(start);
glVertex(end);
glEnd();
glDisable(GL_DEPTH_TEST);
glLineWidth(0.7f);
glPointSize(1.4f);
glDepthFunc(GL_GREATER);
glLineWidth(1.0f);
glPointSize(2.0f);
glBegin(GL_LINES);
glVertex(start);
glVertex(end);
@ -125,7 +131,51 @@ void Rubberband::Render(QGLWidget* gla)
glVertex(start);
glVertex(end);
glEnd();
glDepthFunc(GL_LESS);
}
glPopAttrib();
assert(!glGetError());
}
void Rubberband::RenderLine(QGLWidget* gla, Point3f AA, Point3f BB)
{
// Drawing of the line from AA to BB
glPushAttrib(GL_DEPTH_BUFFER_BIT | GL_ENABLE_BIT | GL_LINE_BIT | GL_POINT_BIT | GL_CURRENT_BIT | GL_LIGHTING_BIT | GL_COLOR_BUFFER_BIT);
glDisable(GL_LIGHTING);
glDisable(GL_TEXTURE_2D);
glDepthMask(false);
glLineWidth(2.5);
glPointSize(6.0);
glEnable(GL_BLEND);
glBlendFunc(GL_ONE_MINUS_DST_COLOR, GL_ONE_MINUS_SRC_COLOR);
glEnable(GL_LINE_SMOOTH);
glEnable(GL_POINT_SMOOTH);
glColor(color);
glLineWidth(2.0);
glPointSize(5.0);
glBegin(GL_LINES);
glVertex(AA);
glVertex(BB);
glEnd();
glBegin(GL_POINTS);
glVertex(AA);
glVertex(BB);
glEnd();
glDepthFunc(GL_GREATER);
glLineWidth(1.0f);
glPointSize(2.0f);
glBegin(GL_LINES);
glVertex(AA);
glVertex(BB);
glEnd();
glBegin(GL_POINTS);
glVertex(AA);
glVertex(BB);
glEnd();
glDepthFunc(GL_LESS);
glPopAttrib();
assert(!glGetError());
}

10
wrap/gui/rubberband.h
View File

@ -74,6 +74,16 @@ public:
*/
void Render(QGLWidget* glw);
/*!
@brief RenderLine draws a line from two points.
@param glw the GL widget.
@param AA the start point.
@param BB the end point.
*/
void RenderLine(QGLWidget* gla, Point3f AA, Point3f BB);
/*!
@brief Set the current rubberband endpoint.