Example usage for org.lwjgl.opengl GL11 glBegin

Introduction

In this page you can find the example usage for org.lwjgl.opengl GL11 glBegin.

Prototype

public static native void glBegin(@NativeType("GLenum") int mode);

Source Link

Document

Begins the definition of vertex attributes of a sequence of primitives to be transferred to the GL.

Usage

From source file:com.jmex.bui.border.LineBorder.java

License:Open Source License

@Override
// from BBorder/*from ww w  .  j  a v a 2s.  c o m*/
public void render(Renderer renderer, int x, int y, int width, int height, float alpha) {
    super.render(renderer, x, y, width, height, alpha);

    BComponent.applyDefaultStates();
    BImage.blendState.apply();

    if (_width > 0) {
        RenderContext ctx = DisplaySystem.getDisplaySystem().getCurrentContext();
        GL11.glColor4f(_color.r, _color.g, _color.b, _color.a * alpha);
        // First draw the bottom line.
        if (_bottom > 0) {
            ((LineRecord) ctx.getLineRecord()).applyLineWidth(_bottom);
            float offset = _bottom / 2f;
            GL11.glBegin(GL11.GL_LINE_STRIP);
            GL11.glVertex2f(x - offset, y);
            GL11.glVertex2f(x + width, y);
            GL11.glEnd();
        }
        // Next draw the right hand side.
        if (_right > 0) {
            ((LineRecord) ctx.getLineRecord()).applyLineWidth(_right);
            float offset = _right / 2f;
            GL11.glBegin(GL11.GL_LINE_STRIP);
            GL11.glVertex2f(x + width - offset, y);
            GL11.glVertex2f(x + width - offset, y + height);
            GL11.glEnd();
        }
        // Next draw the top line.
        if (_top > 0) {
            ((LineRecord) ctx.getLineRecord()).applyLineWidth(_top);
            float offset = _top / 2f;
            GL11.glBegin(GL11.GL_LINE_STRIP);
            GL11.glVertex2f(x + width, y + height - offset);
            GL11.glVertex2f(x - offset, y + height - offset);
            GL11.glEnd();
        }
        // Last draw the left hand side.
        if (_left > 0) {
            ((LineRecord) ctx.getLineRecord()).applyLineWidth(_left);
            GL11.glBegin(GL11.GL_LINE_STRIP);
            GL11.glVertex2f(x, y + height);
            GL11.glVertex2f(x, y);
            GL11.glEnd();
        }
    }
}

---

From source file:com.jmex.bui.BRootNode.java

License:Open Source License

protected void renderModalShade() {
    BComponent.applyDefaultStates();/* ww  w.j a v a 2 s .  c  o  m*/
    BImage.blendState.apply();

    int width = DisplaySystem.getDisplaySystem().getWidth();
    int height = DisplaySystem.getDisplaySystem().getHeight();

    GL11.glColor4f(_modalShade.r, _modalShade.g, _modalShade.b, _modalShade.a);
    GL11.glBegin(GL11.GL_QUADS);
    GL11.glVertex2f(0, 0);
    GL11.glVertex2f(width, 0);
    GL11.glVertex2f(width, height);
    GL11.glVertex2f(0, height);
    GL11.glEnd();
}

---

From source file:com.jmex.bui.BTextField.java

License:Open Source License

@Override
// documentation inherited
protected void renderComponent(Renderer renderer) {
    super.renderComponent(renderer);

    Insets insets = getInsets();/* ww  w. j av  a2s.  c o m*/

    // render our text
    if (_glyphs != null) {
        // clip the text to our visible text region
        boolean scissored = intersectScissorBox(_srect, getAbsoluteX() + insets.left,
                getAbsoluteY() + insets.bottom, _width - insets.getHorizontal(),
                _height - insets.getVertical());
        try {
            _glyphs.render(renderer, insets.left - _txoff, insets.bottom, _alpha);
        } finally {
            restoreScissorState(scissored, _srect);
        }
    }

    // render the cursor if we have focus
    if (_showCursor) {
        int cx = insets.left - _txoff + _cursx;
        BComponent.applyDefaultStates();
        ColorRGBA c = getColor();
        GL11.glColor4f(c.r, c.g, c.b, c.a);
        GL11.glBegin(GL11.GL_LINE_STRIP);
        GL11.glVertex2f(cx, insets.bottom);
        int cheight = getTextFactory().getHeight();
        GL11.glVertex2f(cx, insets.bottom + cheight);
        GL11.glEnd();
    }
}

---

From source file:com.kodehawa.gui.api.render.ModGuiUtils.java

License:Open Source License

/**
 * Basic quad/* w  ww.  ja v  a 2s  . c o  m*/
 * 
 * @param g
 * @param h
 * @param i
 * @param j
 * @param col1
 */
public static void drawRect(float g, float h, float i, float j, int col1) {
    float f = ((col1 >> 24) & 0xFF) / 255F;
    float f1 = ((col1 >> 16) & 0xFF) / 255F;
    float f2 = ((col1 >> 8) & 0xFF) / 255F;
    float f3 = (col1 & 0xFF) / 255F;

    GL11.glEnable(GL11.GL_BLEND);
    GL11.glDisable(GL11.GL_TEXTURE_2D);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    GL11.glEnable(GL11.GL_LINE_SMOOTH);

    GL11.glPushMatrix();
    GL11.glColor4f(f1, f2, f3, f);
    GL11.glBegin(GL11.GL_QUADS);
    GL11.glVertex2d(i, h);
    GL11.glVertex2d(g, h);
    GL11.glVertex2d(g, j);
    GL11.glVertex2d(i, j);
    GL11.glEnd();
    GL11.glPopMatrix();

    GL11.glEnable(GL11.GL_TEXTURE_2D);
    GL11.glDisable(GL11.GL_BLEND);
    GL11.glDisable(GL11.GL_LINE_SMOOTH);
}

---

From source file:com.kodehawa.gui.api.render.ModGuiUtils.java

License:Open Source License

/**
 * Gradient quad//from  w  w w. j av  a2  s  . c om
 * 
 * @param x
 * @param y
 * @param x2
 * @param y2
 * @param col1
 * @param col2
 */
public static void drawGradientRect(int x, int y, int x2, int y2, int col1, int col2) {
    float f = ((col1 >> 24) & 0xFF) / 255F;
    float f1 = ((col1 >> 16) & 0xFF) / 255F;
    float f2 = ((col1 >> 8) & 0xFF) / 255F;
    float f3 = (col1 & 0xFF) / 255F;

    float f4 = ((col2 >> 24) & 0xFF) / 255F;
    float f5 = ((col2 >> 16) & 0xFF) / 255F;
    float f6 = ((col2 >> 8) & 0xFF) / 255F;
    float f7 = (col2 & 0xFF) / 255F;

    GL11.glEnable(GL11.GL_BLEND);
    GL11.glDisable(GL11.GL_TEXTURE_2D);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    GL11.glEnable(GL11.GL_LINE_SMOOTH);
    GL11.glShadeModel(GL11.GL_SMOOTH);

    GL11.glPushMatrix();
    GL11.glBegin(GL11.GL_QUADS);
    GL11.glColor4f(f1, f2, f3, f);
    GL11.glVertex2d(x2, y);
    GL11.glVertex2d(x, y);

    GL11.glColor4f(f5, f6, f7, f4);
    GL11.glVertex2d(x, y2);
    GL11.glVertex2d(x2, y2);
    GL11.glEnd();
    GL11.glPopMatrix();

    GL11.glEnable(GL11.GL_TEXTURE_2D);
    GL11.glDisable(GL11.GL_BLEND);
    GL11.glDisable(GL11.GL_LINE_SMOOTH);
    GL11.glShadeModel(GL11.GL_FLAT);
}

---

From source file:com.kodehawa.gui.api.render.ModGuiUtils.java

License:Open Source License

/**
 * Sideways gradient quad/* w w w.j a  va2 s .c  om*/
 * 
 * @param x
 * @param y
 * @param x2
 * @param y2
 * @param col1
 * @param col2
 */
public static void drawSideGradientRect(float x, float y, float x2, float y2, int col1, int col2) {
    float f = ((col1 >> 24) & 0xFF) / 255F;
    float f1 = ((col1 >> 16) & 0xFF) / 255F;
    float f2 = ((col1 >> 8) & 0xFF) / 255F;
    float f3 = (col1 & 0xFF) / 255F;

    float f4 = ((col2 >> 24) & 0xFF) / 255F;
    float f5 = ((col2 >> 16) & 0xFF) / 255F;
    float f6 = ((col2 >> 8) & 0xFF) / 255F;
    float f7 = (col2 & 0xFF) / 255F;

    GL11.glEnable(GL11.GL_BLEND);
    GL11.glDisable(GL11.GL_TEXTURE_2D);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    GL11.glEnable(GL11.GL_LINE_SMOOTH);
    GL11.glShadeModel(GL11.GL_SMOOTH);

    GL11.glPushMatrix();
    GL11.glBegin(GL11.GL_QUADS);
    GL11.glColor4f(f1, f2, f3, f);
    GL11.glVertex2d(x2, y);

    GL11.glColor4f(f5, f6, f7, f4);
    GL11.glVertex2d(x, y);
    GL11.glVertex2d(x, y2);

    GL11.glColor4f(f1, f2, f3, f);
    GL11.glVertex2d(x2, y2);
    GL11.glEnd();
    GL11.glPopMatrix();

    GL11.glEnable(GL11.GL_TEXTURE_2D);
    GL11.glDisable(GL11.GL_BLEND);
    GL11.glDisable(GL11.GL_LINE_SMOOTH);
    GL11.glShadeModel(GL11.GL_FLAT);
}

---

From source file:com.kodehawa.gui.api.render.ModGuiUtils.java

License:Open Source License

/**
 * Bordered quad/*from w  w w  .  j a  va  2  s. c o m*/
 * 
 * @param x
 * @param y
 * @param x2
 * @param y2
 * @param l1
 * @param col1
 * @param col2
 */
public static void drawBorderedRect(int x, int y, int x2, int y2, float l1, int col1, int col2) {
    drawRect(x, y, x2, y2, col2);

    float f = ((col1 >> 24) & 0xFF) / 255F;
    float f1 = ((col1 >> 16) & 0xFF) / 255F;
    float f2 = ((col1 >> 8) & 0xFF) / 255F;
    float f3 = (col1 & 0xFF) / 255F;

    GL11.glEnable(GL11.GL_BLEND);
    GL11.glDisable(GL11.GL_TEXTURE_2D);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    GL11.glEnable(GL11.GL_LINE_SMOOTH);

    GL11.glPushMatrix();
    GL11.glColor4f(f1, f2, f3, f);
    GL11.glLineWidth(l1);
    GL11.glBegin(GL11.GL_LINES);
    GL11.glVertex2d(x, y);
    GL11.glVertex2d(x, y2);
    GL11.glVertex2d(x2, y2);
    GL11.glVertex2d(x2, y);
    GL11.glVertex2d(x, y);
    GL11.glVertex2d(x2, y);
    GL11.glVertex2d(x, y2);
    GL11.glVertex2d(x2, y2);
    GL11.glEnd();
    GL11.glPopMatrix();

    GL11.glEnable(GL11.GL_TEXTURE_2D);
    GL11.glDisable(GL11.GL_BLEND);
    GL11.glDisable(GL11.GL_LINE_SMOOTH);
}

---

From source file:com.kodehawa.gui.api.render.ModGuiUtils.java

License:Open Source License

/**
 * Border of a quad/*from  w ww  .  ja v a  2 s . c o  m*/
 * 
 * @param x
 * @param y
 * @param x2
 * @param y2
 * @param l1
 * @param col1
 */
public static void drawHollowBorderedRect(int x, int y, int x2, int y2, float l1, int col1) {
    float f = ((col1 >> 24) & 0xFF) / 255F;
    float f1 = ((col1 >> 16) & 0xFF) / 255F;
    float f2 = ((col1 >> 8) & 0xFF) / 255F;
    float f3 = (col1 & 0xFF) / 255F;

    GL11.glEnable(GL11.GL_BLEND);
    GL11.glDisable(GL11.GL_TEXTURE_2D);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    GL11.glEnable(GL11.GL_LINE_SMOOTH);

    GL11.glPushMatrix();
    GL11.glColor4f(f1, f2, f3, f);
    GL11.glLineWidth(l1);
    GL11.glBegin(GL11.GL_LINES);
    GL11.glVertex2d(x, y);
    GL11.glVertex2d(x, y2);
    GL11.glVertex2d(x2, y2);
    GL11.glVertex2d(x2, y);
    GL11.glVertex2d(x, y);
    GL11.glVertex2d(x2, y);
    GL11.glVertex2d(x, y2);
    GL11.glVertex2d(x2, y2);
    GL11.glEnd();
    GL11.glPopMatrix();

    GL11.glEnable(GL11.GL_TEXTURE_2D);
    GL11.glDisable(GL11.GL_BLEND);
    GL11.glDisable(GL11.GL_LINE_SMOOTH);
}

---

From source file:com.kodehawa.gui.api.render.ModGuiUtils.java

License:Open Source License

/**
 * Gradient rect with a border//w w w. ja v  a 2 s.  co m
 * 
 * @param x
 * @param y
 * @param x2
 * @param y2
 * @param l1
 * @param col1
 * @param col2
 * @param col3
 */
public static void drawGradientBorderedRect(int x, int y, int x2, int y2, float l1, int col1, int col2,
        int col3) {
    drawGradientRect(x, y, x2, y2, col2, col3);

    float f = ((col1 >> 24) & 0xFF) / 255F;
    float f1 = ((col1 >> 16) & 0xFF) / 255F;
    float f2 = ((col1 >> 8) & 0xFF) / 255F;
    float f3 = (col1 & 0xFF) / 255F;

    GL11.glEnable(GL11.GL_BLEND);
    GL11.glDisable(GL11.GL_TEXTURE_2D);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    GL11.glEnable(GL11.GL_LINE_SMOOTH);

    GL11.glPushMatrix();
    GL11.glColor4f(f1, f2, f3, f);
    GL11.glLineWidth(l1);
    GL11.glBegin(GL11.GL_LINES);
    GL11.glVertex2d(x, y);
    GL11.glVertex2d(x, y2);
    GL11.glVertex2d(x2, y2);
    GL11.glVertex2d(x2, y);
    GL11.glVertex2d(x, y);
    GL11.glVertex2d(x2, y);
    GL11.glVertex2d(x, y2);
    GL11.glVertex2d(x2, y2);
    GL11.glEnd();
    GL11.glPopMatrix();

    GL11.glEnable(GL11.GL_TEXTURE_2D);
    GL11.glDisable(GL11.GL_BLEND);
    GL11.glDisable(GL11.GL_LINE_SMOOTH);
}

---

From source file:com.kodehawa.gui.api.render.ModGuiUtils.java

License:Open Source License

/**
 * Vertical line//www.  j  a v  a2  s.  com
 * 
 * @param x
 * @param y
 * @param y2
 * @param l1
 * @param col1
 */
public static void drawVerticalLine(int x, int y, int y2, float l1, int col1) {
    float f = ((col1 >> 24) & 0xFF) / 255F;
    float f1 = ((col1 >> 16) & 0xFF) / 255F;
    float f2 = ((col1 >> 8) & 0xFF) / 255F;
    float f3 = (col1 & 0xFF) / 255F;

    GL11.glEnable(GL11.GL_BLEND);
    GL11.glDisable(GL11.GL_TEXTURE_2D);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    GL11.glEnable(GL11.GL_LINE_SMOOTH);

    GL11.glPushMatrix();
    GL11.glColor4f(f1, f2, f3, f);
    GL11.glLineWidth(l1);
    GL11.glBegin(GL11.GL_LINES);
    GL11.glVertex2d(x, y);
    GL11.glVertex2d(x, y2);
    GL11.glEnd();
    GL11.glPopMatrix();

    GL11.glEnable(GL11.GL_TEXTURE_2D);
    GL11.glDisable(GL11.GL_BLEND);
    GL11.glDisable(GL11.GL_LINE_SMOOTH);
}

---

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