Show GLWScrollPanel.cpp syntax highlighted
////////////////////////////////////////////////////////////////////////////////
// Scorched3D (c) 2000-2003
//
// This file is part of Scorched3D.
//
// Scorched3D is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// Scorched3D is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Scorched3D; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
////////////////////////////////////////////////////////////////////////////////
#include <GLW/GLWScrollPanel.h>
#include <GLW/GLWTranslate.h>
#include <GLEXT/GLState.h>
#include <float.h>
REGISTER_CLASS_SOURCE(GLWScrollPanel);
GLWScrollPanel::GLWScrollPanel(float x, float y, float w, float h) :
GLWPanel(x, y, w, h), scrollW_(x + w - 19, y + 4, h - 10, 0, 0),
drawScrollBar_(true), maxSee_(0), widgetHeight_(0.0f)
{
scrollW_.setHandler(this);
}
GLWScrollPanel::~GLWScrollPanel()
{
}
void GLWScrollPanel::setH(float h)
{
GLWidget::setH(h);
scrollW_.setH(h_ - 10);
}
void GLWScrollPanel::simulate(float frameTime)
{
scrollW_.simulate(frameTime);
}
void GLWScrollPanel::calculateVisible()
{
drawScrollBar_ = false;
int canSee = 0;
float widgetMinY = FLT_MAX;
float widgetMaxY = FLT_MIN;
{
std::list<GLWPanel::GLWPanelEntry>::iterator itor;
for (itor = getWidgets().begin();
itor != getWidgets().end();
itor++)
{
GLWidget *vw = (GLWidget *) (*itor).widget;
if (vw->getY() < 0.0f || vw->getY() + vw->getH() > h_)
{
drawScrollBar_ = true;
}
else
{
canSee++;
}
if (vw->getY() < widgetMinY) widgetMinY = vw->getY();
if (vw->getY() + vw->getH() > widgetMaxY) widgetMaxY = vw->getY() + vw->getH();
}
}
widgetHeight_ = widgetMaxY - widgetMinY;
// Draw scroll bar if not
if (drawScrollBar_)
{
if (canSee > maxSee_) maxSee_ = canSee;
scrollW_.setSee(maxSee_);
scrollW_.setMax((int) getWidgets().size());
}
}
void GLWScrollPanel::draw()
{
calculateVisible();
glPushMatrix();
{
GLWTranslate trans(x_, y_);
glTranslatef(x_, y_, 0.0f);
GLState currentState(GLState::DEPTH_OFF | GLState::TEXTURE_OFF);
std::list<GLWPanel::GLWPanelEntry>::iterator itor;
for (itor = getWidgets().begin();
itor != getWidgets().end();
itor++)
{
glPushMatrix();
GLWidget *vw = (GLWidget *) (*itor).widget;
if (vw->getY() >= 0.0f && vw->getY() + vw->getH() <= h_)
{
vw->draw();
}
glPopMatrix();
}
}
glPopMatrix();
if (drawScrollBar_) scrollW_.draw();
}
void GLWScrollPanel::mouseUp(int button, float x, float y, bool &skipRest)
{
if (drawScrollBar_)
{
scrollW_.mouseUp(button, x, y, skipRest);
}
if (!skipRest)
{
x -= x_;
y -= y_;
std::list<GLWPanel::GLWPanelEntry>::iterator itor;
for (itor = getWidgets().begin();
itor != getWidgets().end();
itor++)
{
GLWidget *vw =
(GLWidget *) (*itor).widget;
if (vw->getY() < 0.0f || vw->getY() + vw->getH() > h_)
{
}
else
{
vw->mouseUp(button, x, y, skipRest);
}
if (skipRest) break;
}
}
}
void GLWScrollPanel::mouseDown(int button, float x, float y, bool &skipRest)
{
if (drawScrollBar_)
{
scrollW_.mouseDown(button, x, y, skipRest);
}
if (!skipRest)
{
x -= x_;
y -= y_;
std::list<GLWPanel::GLWPanelEntry>::iterator itor;
for (itor = getWidgets().begin();
itor != getWidgets().end();
itor++)
{
GLWidget *vw =
(GLWidget *) (*itor).widget;
if (vw->getY() < 0.0f || vw->getY() + vw->getH() > h_)
{
}
else
{
vw->mouseDown(button, x, y, skipRest);
}
if (skipRest) break;
}
}
}
void GLWScrollPanel::mouseDrag(int button, float mx, float my, float x, float y, bool &skipRest)
{
if (drawScrollBar_)
{
scrollW_.mouseDrag(button, mx, my, x, y, skipRest);
}
if (!skipRest)
{
mx -= x_;
my -= y_;
std::list<GLWPanel::GLWPanelEntry>::iterator itor;
for (itor = getWidgets().begin();
itor != getWidgets().end();
itor++)
{
GLWidget *vw =
(GLWidget *) (*itor).widget;
if (vw->getY() < 0.0f || vw->getY() + vw->getH() > h_)
{
}
else
{
vw->mouseDrag(button, mx, my, x, y, skipRest);
}
if (skipRest) break;
}
}
}
void GLWScrollPanel::mouseWheel(float x, float y, float z, bool &skipRest)
{
if (inBox(x, y, x_, y_, w_, h_))
{
skipRest = true;
if (drawScrollBar_)
{
if (z < 0.0f) scrollW_.setCurrent(scrollW_.getCurrent() + 2);
else scrollW_.setCurrent(scrollW_.getCurrent() - 2);
}
else
{
GLWPanel::mouseWheel(x, y, z, skipRest);
}
}
}
void GLWScrollPanel::positionChange(unsigned int id, int current, int movement)
{
float move = ((widgetHeight_ + 2.0f) / float(getWidgets().size())) * float(movement);
std::list<GLWPanel::GLWPanelEntry>::iterator itor;
for (itor = getWidgets().begin();
itor != getWidgets().end();
itor++)
{
GLWidget *vw =
(GLWidget *) (*itor).widget;
vw->setY(vw->getY() - move);
}
}
void GLWScrollPanel::clear()
{
scrollW_.setCurrent(0);
GLWPanel::clear();
}
See more files for this project here