bool MgDot::_draw(int mode, GiGraphics& gs, const GiContext& ctx, int segment) const
{
GiContext ctx2(0, GiColor::Invalid(), GiContext::kNullLine,
ctx.hasFillColor() ? ctx.getFillColor() : ctx.getLineColor());
float w = gs.calcPenWidth(ctx.getLineWidth(), false);
bool ret = gs.drawCircle(&ctx2, _point, gs.xf().displayToModel(w));
return __super::_draw(mode, gs, ctx, segment) || ret;
}
bool setPen(const GiContext* ctx)
{
bool changed = !_ctxused[0];
if (ctx && !ctx->isNullLine())
{
if (_gictx.getLineColor() != ctx->getLineColor()) {
_gictx.setLineColor(ctx->getLineColor());
changed = true;
}
if (_gictx.getLineWidth() != ctx->getLineWidth()) {
_gictx.setLineWidth(ctx->getLineWidth(), ctx->isAutoScale());
changed = true;
}
if (_gictx.getLineStyle() != ctx->getLineStyle()) {
_gictx.setLineStyle(ctx->getLineStyle());
changed = true;
}
}
if (!ctx) ctx = &_gictx;
if (!ctx->isNullLine() && changed)
{
_ctxused[0] = true;
GiColor color = ctx->getLineColor();
if (gs())
color = gs()->calcPenColor(color);
CGContextSetRGBStrokeColor(getContext(),
toFloat(color.r), toFloat(color.g),
toFloat(color.b), toFloat(color.a));
float w = ctx->getLineWidth();
w = gs() ? gs()->calcPenWidth(w, ctx->isAutoScale()) : (w < 0 ? -w : 1);
CGContextSetLineWidth(getContext(), _fast && w > 1 ? w - 1 : w); // 不是反走样就细一点
int style = ctx->getLineStyle();
CGFloat pattern[6];
if (style >= 0 && style < sizeof(lpats)/sizeof(lpats[0])) {
if (lpats[style].arr && !_fast) { // 快速画时不要线型
makeLinePattern(pattern, lpats[style].arr, lpats[style].n, w);
CGContextSetLineDash(getContext(), 0, pattern, lpats[style].n);
}
else {
CGContextSetLineDash(getContext(), 0, NULL, 0);
}
CGContextSetLineCap(getContext(), style > 0 ? kCGLineCapButt : kCGLineCapRound);
}
}
return !ctx->isNullLine();
}
bool MgGrid::_draw(int mode, GiGraphics& gs, const GiContext& ctx) const
{
Vector2d cell(m_cell / 2);
if (cell.x < _MGZERO || cell.y < _MGZERO) {
GiContext ctxedge(ctx);
ctxedge.setNoFillColor();
gs.drawRect(&ctxedge, getRect());
return __super::_draw(mode, gs, ctx);
}
int nx = (int)(getWidth() / cell.x + _MGZERO);
int ny = (int)(getHeight() / cell.y + _MGZERO);
Box2d rect(getPoint(3), getPoint(3)
+ Vector2d((float)(cell.x * nx), (float)(cell.y * ny)));
float w = gs.calcPenWidth(ctx.getLineWidth(), ctx.isAutoScale()) / -2.f;
GiContext ctxgrid(w, ctx.getLineColor());
bool antiAlias = gs.setAntiAliasMode(false);
int ret = gs.drawRect(&ctxgrid, rect) ? 1 : 0;
bool switchx = (nx >= 10 && cell.x < gs.xf().displayToModel(20, true));
bool switchy = (ny >= 10 && cell.y < gs.xf().displayToModel(20, true));
Point2d pts[2] = { rect.leftTop(), rect.leftBottom() };
for (int i = 1; i < nx; i++) {
pts[0].x += cell.x;
pts[1].x += cell.x;
ctxgrid.setLineWidth(!switchx || i%5 > 0 ? w/2 : w, false);
ctxgrid.setLineAlpha(-w < 0.9f && (!switchx || i%5 > 0) ?
ctx.getLineAlpha() / 2 : ctx.getLineAlpha());
ret += gs.drawLine(&ctxgrid, pts[0], pts[1]) ? 1 : 0;
}
pts[0] = rect.leftBottom();
pts[1] = rect.rightBottom();
for (int j = 1; j < ny; j++) {
pts[0].y += cell.y;
pts[1].y += cell.y;
ctxgrid.setLineWidth(!switchy || j%5 > 0 ? w/2 : w, false);
ctxgrid.setLineAlpha(-w < 0.9f && (!switchy || j%5 > 0) ?
ctx.getLineAlpha() / 2 : ctx.getLineAlpha());
ret += gs.drawLine(&ctxgrid, pts[0], pts[1]) ? 1 : 0;
}
gs.setAntiAliasMode(antiAlias);
return __super::_draw(mode, gs, ctx) || ret > 0;
}
G::Pen* createPen(const GiContext* ctx, bool* pNotSmoothing = NULL)
{
G::Pen* pPen = NULL;
if (ctx == NULL)
ctx = &m_context;
m_penNull = ctx->isNullLine();
if (!m_penNull)
{
if (m_pen == NULL
|| m_context.getLineStyle() != ctx->getLineStyle()
|| m_context.getLineWidth() != ctx->getLineWidth()
|| m_context.getLineColor() != ctx->getLineColor()
|| m_context.getLineAlpha() != ctx->getLineAlpha())
{
m_context.setLineStyle(ctx->getLineStyle());
m_context.setLineWidth(ctx->getLineWidth());
m_context.setLineColor(ctx->getLineColor());
m_context.setLineAlpha(ctx->getLineAlpha());
if (m_pen != NULL)
{
delete m_pen;
m_pen = NULL;
}
float width = gs()->calcPenWidth(ctx->getLineWidth());
GiColor color = gs()->calcPenColor(ctx->getLineColor());
m_pen = new G::Pen(G::Color(ctx->getLineAlpha(),
color.r, color.g, color.b), width);
if (m_pen != NULL)
{
m_pen->SetDashStyle((G::DashStyle)ctx->getLineStyle());
if (pNotSmoothing != NULL)
{
*pNotSmoothing = (width <= 1
&& ctx->getLineStyle() != kGiLineSolid);
}
}
}
pPen = m_pen;
}
return pPen;
}
HGDIOBJ createPen(const GiContext* ctx, bool rectJoin = false)
{
if (ctx == NULL)
ctx = &m_context;
if (m_pen == NULL
|| m_context.getLineStyle() != ctx->getLineStyle()
|| m_context.getLineWidth() != ctx->getLineWidth()
|| m_context.getLineColor() != ctx->getLineColor()
|| m_context.getLineAlpha() != ctx->getLineAlpha())
{
m_context.setLineStyle(ctx->getLineStyle());
m_context.setLineWidth(ctx->getLineWidth(), ctx->isAutoScale());
m_context.setLineColor(ctx->getLineColor());
m_context.setLineAlpha(ctx->getLineAlpha());
if (m_pen != NULL)
::DeleteObject(m_pen);
if (ctx->isNullLine() || ctx->getLineAlpha() < 127)
m_pen = ::GetStockObject(NULL_PEN);
else
{
int width = mgRound(m_this->gs()->calcPenWidth(
ctx->getLineWidth(), ctx->isAutoScale()));
GiColor color = m_this->gs()->calcPenColor(ctx->getLineColor());
COLORREF cr = RGB(color.r, color.g, color.b);
int lineStyle = ctx->getLineStyle();
if (width > 1)
{
LOGBRUSH logBrush = { BS_SOLID, cr };
m_pen = ::ExtCreatePen(
(rectJoin ? PS_JOIN_MITER : 0)
| PS_GEOMETRIC | PS_ENDCAP_FLAT | lineStyle,
width, &logBrush, 0, NULL);
}
else
{
m_pen = ::CreatePen(lineStyle, width, cr);
}
}
}
return m_pen;
}
