llvelocitybar.cpp

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#include "llviewerprecompiledheaders.h"

#include "llui.h"
#include "llgl.h"
#include "llfontgl.h"

#include "llagent.h"

#include "llvelocitybar.h"

EWidgetType LLVelocityBar::getWidgetType() const
{
        return WIDGET_TYPE_VELOCITY_BAR;
}

LLString LLVelocityBar::getWidgetTag() const
{
        return LL_VELOCITY_BAR_TAG;
}

const char tab = '\t';

void LLVelocityBar::draw()
{
        const S32 BAR_TOP = 24;
        const S32 BAR_BOTTOM = 20;
        const S32 TICK_BOTTOM = 15;
        const S32 TICK_WIDTH = 2;
        const S32 MAGIC_CHAR_WIDTH = 6;

        S32 left, top, right, bottom;

        if (!getVisible())
        {
                return;
        }

//      const F32 MS_TO_SECONDS = 0.001f;
//      const S32 WIDTH_IN_MS = 66;
//      const F32 WIDGET_TIME_FOR_WIDTH = WIDTH_IN_MS * MS_TO_SECONDS;

        F32 velocity = gAgent.getVelocity().magVec();

        LLColor4 bar_color(0.0f, 1.0f, 0.0f, 1.f);

        // 
        //  Set bar color 
        //

        LLGLSNoTexture gls_no_texture;

        // draw background box
        // glColor4f(0.f, 0.f, 0.f, 0.3f);
        // gl_rect_2d(0, mRect.getHeight(), mRect.getWidth(), 0);

        // draw white lines for special times 
        // (60 hz = 16 ms, 30 hz = 33 ms, 15 hz = 66 ms)
        LLColor4 color(1.f, 1.f, 1.f, 1.f);

        top = BAR_BOTTOM - 1;
        bottom = TICK_BOTTOM;

        left = 0;
        right = left + TICK_WIDTH;
        gl_rect_2d(left, top, right, bottom, color);

        left = (S32) (mRect.getWidth() * 1 / 6);
        right = left + TICK_WIDTH;
        gl_rect_2d(left, top, right, bottom, color);

        left = (S32) (mRect.getWidth() * 2 / 6);
        right = left + TICK_WIDTH;
        gl_rect_2d(left, top, right, bottom, color);

        left = (S32) (mRect.getWidth() * 3 / 6);
        right = left + TICK_WIDTH;
        gl_rect_2d(left, top, right, bottom, color);

        left = (S32) (mRect.getWidth() * 4 / 6);
        right = left + TICK_WIDTH;
        gl_rect_2d(left, top, right, bottom, color);

        left = (S32) (mRect.getWidth() * 5 / 6);
        right = left + TICK_WIDTH;
        gl_rect_2d(left, top, right, bottom, color);

        left = (S32) (mRect.getWidth() * 6 / 6);
        right = left + TICK_WIDTH;
        gl_rect_2d(left, top, right, bottom, color);


        // draw labels for the bar
        LLGLSTexture gls_texture;

        top = BAR_TOP + 15;
        left = 0;
        char str[80];           /* Flawfinder: ignore */
        snprintf(str, sizeof(str), "Velocity %.3fm/s", velocity);               /* Flawfinder: ignore */
        LLFontGL::sMonospace->renderUTF8(str, 0, left, top, color, LLFontGL::LEFT, LLFontGL::TOP);

        top = TICK_BOTTOM;

        left = - MAGIC_CHAR_WIDTH/2;
        LLFontGL::sMonospace->renderUTF8("0", 0, left, top, color, LLFontGL::LEFT, LLFontGL::TOP);

        left = (mRect.getWidth()*1 / 6) - MAGIC_CHAR_WIDTH * 2;
        LLFontGL::sMonospace->renderUTF8("1", 0, left, top, color, LLFontGL::LEFT, LLFontGL::TOP);

        left = (mRect.getWidth()*2 / 6) - MAGIC_CHAR_WIDTH;
        LLFontGL::sMonospace->renderUTF8("2", 0, left, top, color, LLFontGL::LEFT, LLFontGL::TOP);

        left = (mRect.getWidth()*3 / 6) - MAGIC_CHAR_WIDTH * 2;
        LLFontGL::sMonospace->renderUTF8("3", 0, left, top, color, LLFontGL::LEFT, LLFontGL::TOP);

        left = (mRect.getWidth()*4 / 6) - MAGIC_CHAR_WIDTH;
        LLFontGL::sMonospace->renderUTF8("4", 0, left, top, color, LLFontGL::LEFT, LLFontGL::TOP);

        left = (mRect.getWidth()*5 / 6) - MAGIC_CHAR_WIDTH * 2;
        LLFontGL::sMonospace->renderUTF8("5", 0, left, top, color, LLFontGL::LEFT, LLFontGL::TOP);

        left = (mRect.getWidth()*6 / 6) - MAGIC_CHAR_WIDTH * 3;
        LLFontGL::sMonospace->renderUTF8("6 m/s", 0, left, top, color, LLFontGL::LEFT, LLFontGL::TOP);

        // draw idle time
        top = BAR_TOP;
        bottom = BAR_BOTTOM;

        //  Draw energy level
        left = 0;
        right = (S32) (left + velocity * 0.33333f * mRect.getWidth() / 2.f);
        gl_rect_2d(left, top, right, bottom, bar_color);
}

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