Example usage for net.minecraftforge.client MinecraftForgeClient reserveStencilBit

Introduction

In this page you can find the example usage for net.minecraftforge.client MinecraftForgeClient reserveStencilBit.

Prototype

public static int reserveStencilBit()

Source Link

Document

Reserve a stencil bit for use in rendering Note: you must check the Framebuffer you are working with to determine if stencil bits are enabled on it before use.

Usage

From source file:matteroverdrive.gui.element.MOElementTextField.java

License:Open Source License

@Override
public void drawForeground(int mouseX, int mouseY) {

    boolean enableStencil = this.enableStencil;
    int bit = -1;
    l: if (enableStencil) {
        bit = MinecraftForgeClient.reserveStencilBit();
        if (bit == -1) {
            enableStencil = false;//from  ww w .  j a v a2  s.  co  m
            break l;
        }
        GL11.glEnable(GL11.GL_STENCIL_TEST);
        drawStencil(posX + 1, posY + 1, posX + sizeX - 1, posY + sizeY - 1, 1 << bit);
    }

    FontRenderer font = getFontRenderer();
    char[] text = this.text;
    int startX = posX + 1 - (multiline ? renderStartX : 0), endX = sizeX - 1;
    int startY = posY + 1 - renderStartY, endY = startY + font.FONT_HEIGHT;
    int drawY = renderStartY + Math.max(0, (sizeY - 2) / font.FONT_HEIGHT) * font.FONT_HEIGHT;
    if (enableStencil) {
        if (sizeY - (drawY - renderStartY) > 2) {
            drawY += font.FONT_HEIGHT;
        }
    }
    int drawX = endX + (multiline ? renderStartX : 0);
    for (int i = multiline ? 0 : renderStartX, width = 0, height = 0; i <= textLength; ++i) {
        boolean end = i == textLength, draw = height >= renderStartY && width < drawX && height < drawY;
        int charW = 2;
        char c = 0;
        if (!end) {
            c = text[i];
            if (draw) {
                charW = multiline && c == '\n' ? 2 : font.getCharWidth(c);
            }
            int tWidth = width + charW;
            if (multiline) {
                if (!enableStencil) {
                    draw &= width >= renderStartX;
                }
                draw &= tWidth > renderStartX;
            }
            l: if (!enableStencil && tWidth > endX) {
                draw = false;
                if (multiline) {
                    if (c == '\n') {
                        break l;
                    }
                    continue;
                }
                break;
            }
        }

        boolean drawCaret = draw && i == caret && (caretCounter &= 31) < 16 && isFocused();
        if (drawCaret) {
            int caretEnd = width + 2;
            if (caretInsert) {
                caretEnd = width + charW;
            }
            drawModalRect(startX + width, startY - 1 + height, startX + caretEnd, endY + height,
                    (0xFF000000 & defaultCaretColor) | (~defaultCaretColor & 0xFFFFFF));
        }

        if (draw && !end) {
            boolean selected = i >= selectionStart & i < selectionEnd;
            if (selected) {
                drawModalRect(startX + width, startY + height, startX + width + charW, endY + height,
                        selectedLineColor);
            }
            if (c != '\n') {
                font.drawString(String.valueOf(c), startX + width, startY + height,
                        selected ? selectedTextColor : textColor);
            }
        }

        if (drawCaret) {
            int caretEnd = width + 2;
            if (caretInsert) {
                caretEnd = width + charW;
            }

            GL11.glEnable(GL11.GL_BLEND);
            GL11.glBlendFunc(GL11.GL_ONE_MINUS_DST_COLOR, GL11.GL_ZERO);
            gui.drawSizedRect(startX + width, startY - 1 + height, startX + caretEnd, endY + height, -1);
            GL11.glDisable(GL11.GL_BLEND);
        }

        if (c == '\n') {
            height += font.FONT_HEIGHT;
            charW = width = 0;
            if (height > drawY) {
                break;
            }
        }

        width += charW;
        if (!multiline && width > endX) {
            break;
        }
    }

    if (enableStencil) {
        GL11.glDisable(GL11.GL_STENCIL_TEST);
        MinecraftForgeClient.releaseStencilBit(bit);
    }

    if (holoIcon != null) {
        if (color != null)
            RenderUtils.applyColor(color);

        float heightScale = (float) Math.min(holoIcon.getOriginalHeight(), sizeY)
                / (float) holoIcon.getOriginalHeight();
        ClientProxy.holoIcons.renderIcon(holoIcon, posX - holoIcon.getOriginalWidth() - 2, posY,
                (int) (holoIcon.getOriginalWidth() * heightScale),
                (int) (holoIcon.getOriginalHeight() * heightScale));
    }
}