void Button_Panel::Paint()
{
BaseClass::Paint();
DrawButton();
DrawText();
DrawDescription();
}
//
// lpRect This is the owner window client area
// xShift shift on X axis from the client area rectangle
// yShift shift on Y axis from the client area rectangle
//
//
// Call by OnPaint as DrawChart(hMemDC, &rcClient, dx, dy);
//
void GDisplay::DrawChart( HDC hDC, LPRECT lpRect, INT xShift, INT yShift)
{
// At this point lpRect is owner window client rectangle
MyFillRect(hDC, lpRect, m_clrBackDark);
InflateRect(lpRect, -xShift, -yShift);
// Uncomment the next line to see proper chart rectangle
//BorderRect(hDC, lpRect, RGB(255,255,255));
DrawGrid(hDC, lpRect);
// Form rectangle for painting
SetRect(&m_rcChart,
xShift + m_dxText,
lpRect->top,
m_nMarginRight, // These margings came from DrawGrid()
m_nMarginBottom); // where they are calculated
// How many items the current screen can show ?
// Note: m_xMinStep forced to be set to DEFAULT_XSTEP ('4' pixels)
m_nScreenBufferSize = (m_rcChart.right - m_rcChart.left)/m_xMinStep;
if (m_nScreenBufferSize < MIN_SCREEN_BUFFER_SIZE)
m_nScreenBufferSize = MIN_SCREEN_BUFFER_SIZE;
if (m_nScreenBufferSize > MAX_SCREEN_BUFFER_SIZE)
m_nScreenBufferSize = MAX_SCREEN_BUFFER_SIZE;
POINT ptOld[MAX_CHART_COUNT]; // Start point
POINT ptNew[MAX_CHART_COUNT]; // End point
double new_value[MAX_CHART_COUNT];
double old_value[MAX_CHART_COUNT];
for (int i = 0; i < m_nScreenBufferSize; i++)
{
for (int k = 0; k < m_nChartCount; k++)
{
new_value[k] = m_dScreenBuffer[k][i+1];
old_value[k] = m_dScreenBuffer[k][i];
ptOld[k].x = m_xMinStep*i + m_rcChart.left;
ptNew[k].x = m_xMinStep*(i+1)+ m_rcChart.left;
// Convert actual value to screen units
if (!dtoi(m_rcChart.bottom,
m_rcChart.top,
m_dblMin[k],
m_dblMax[k],
old_value[k], &(ptOld[k].y)))
{
ptOld[k].y = m_rcChart.bottom;
}
if (!dtoi(m_rcChart.bottom,
m_rcChart.top,
m_dblMin[k],
m_dblMax[k],
new_value[k], &(ptNew[k].y)))
{
ptNew[k].y = m_rcChart.bottom;
}
if (ptOld[k].y <= m_rcChart.top)
ptOld[k].y = m_rcChart.top;
if (ptOld[k].y >= m_rcChart.bottom)
ptOld[k].y = m_rcChart.bottom;
if (ptNew[k].y <= m_rcChart.top)
ptNew[k].y = m_rcChart.top;
if (ptNew[k].y >= m_rcChart.bottom)
ptNew[k].y = m_rcChart.bottom;
// we out of the right border
if (ptNew[k].x >= m_rcChart.right)
{
ResetBuffer(INIT_BUFFER_VALUE);
}
DrawMarker(hDC, &ptOld[k], &ptNew[k], m_rcChart.right, m_clrMarker[k]);
DrawUpdateLine(hDC, m_xUpdatePosition, &m_rcChart);
DrawDescription(hDC, &m_rcChart);
} // for (k < m_nChartCount)
} // for (i < m_nScreenBufferSize)
}
