Drawing primitives not working?

[McJty]

I'm trying to draw my GUI: I have the following code:

 

    @Override
    public void drawScreen(int xSize_lo, int ySize_lo, float par3) {
        super.drawScreen(xSize_lo, ySize_lo, par3);
        GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
        this.mc.getTextureManager().bindTexture(iconLocation);
        int k = (this.width - this.xSize) / 2;
        int l = (this.height - this.ySize) / 2;

        this.drawTexturedModalRect(k, l, 0, 0, this.xSize, this.ySize);

        this.drawVerticalLine(k + 15, l, l + 100, 0x334455);

        int y = 0;
        HashMap<Coordinate,BlockInfo> connectedBlocks = monitorItem.getConnectedBlocks();
        for (Map.Entry<Coordinate,BlockInfo> me : connectedBlocks.entrySet()) {
            Block block = me.getValue().getBlock();
            Coordinate coordinate = me.getKey();
            ItemStack s = new ItemStack(block, 1, 0);
//            String lname = block.getLocalizedName();
//            System.out.println("I18n = " + I18n.format(lname));
//            System.out.println("Stat = " + StatCollector.translateToLocal(lname));

            mc.fontRenderer.drawString(s.getDisplayName(), k + 5, l + 5 + y, 1677215);
            mc.fontRenderer.drawString(coordinate.toString(), k+160, l+5+y, 1677215);

            y += mc.fontRenderer.FONT_HEIGHT + 2;
        }

        this.drawGradientRect(k + xSize-20, l + 5, k + xSize-5, l + ySize - 5, 0xFF0000, 0x00FF00);
        this.drawGradientRect(k + 5, l + 5, k + 10, l + ySize - 5, 0xFF0000, 0x00FF00);

        mc.fontRenderer.drawString("###", k + 15, l, 0x334455);
        this.drawVerticalLine(k+15, l, l + 50, 0x334455);
    }

 

I can see the background texture. I can see all the text that has been rendered. But I cannot see the gradient rects and I cannot see the vertical lines. The coordinates should be right as I'm also using them for the text. Any idea what I'm missing and why only text is visible?

 

Thanks!

[McJty]

Solved! Apparently text ignores alpha but the other calls don't.