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// 6 september 2015
#include "uipriv_unix.h"
#include "draw.h"
uiDrawContext *newContext(cairo_t *cr)
{
uiDrawContext *c;
c = uiNew(uiDrawContext);
c->cr = cr;
return c;
}
void freeContext(uiDrawContext *c)
{
uiFree(c);
}
static cairo_pattern_t *mkbrush(uiDrawBrush *b)
{
cairo_pattern_t *pat;
size_t i;
switch (b->Type) {
case uiDrawBrushTypeSolid:
pat = cairo_pattern_create_rgba(b->R, b->G, b->B, b->A);
break;
case uiDrawBrushTypeLinearGradient:
pat = cairo_pattern_create_linear(b->X0, b->Y0, b->X1, b->Y1);
break;
case uiDrawBrushTypeRadialGradient:
// make the start circle radius 0 to make it a point
pat = cairo_pattern_create_radial(
b->X0, b->Y0, 0,
b->X1, b->Y1, b->OuterRadius);
break;
// case uiDrawBrushTypeImage:
}
if (cairo_pattern_status(pat) != CAIRO_STATUS_SUCCESS)
implbug("error creating pattern in mkbrush(): %s",
cairo_status_to_string(cairo_pattern_status(pat)));
switch (b->Type) {
case uiDrawBrushTypeLinearGradient:
case uiDrawBrushTypeRadialGradient:
for (i = 0; i < b->NumStops; i++)
cairo_pattern_add_color_stop_rgba(pat,
b->Stops[i].Pos,
b->Stops[i].R,
b->Stops[i].G,
b->Stops[i].B,
b->Stops[i].A);
}
return pat;
}
void uiDrawStroke(uiDrawContext *c, uiDrawPath *path, uiDrawBrush *b, uiDrawStrokeParams *p)
{
cairo_pattern_t *pat;
runPath(path, c->cr);
pat = mkbrush(b);
cairo_set_source(c->cr, pat);
switch (p->Cap) {
case uiDrawLineCapFlat:
cairo_set_line_cap(c->cr, CAIRO_LINE_CAP_BUTT);
break;
case uiDrawLineCapRound:
cairo_set_line_cap(c->cr, CAIRO_LINE_CAP_ROUND);
break;
case uiDrawLineCapSquare:
cairo_set_line_cap(c->cr, CAIRO_LINE_CAP_SQUARE);
break;
}
switch (p->Join) {
case uiDrawLineJoinMiter:
cairo_set_line_join(c->cr, CAIRO_LINE_JOIN_MITER);
cairo_set_miter_limit(c->cr, p->MiterLimit);
break;
case uiDrawLineJoinRound:
cairo_set_line_join(c->cr, CAIRO_LINE_JOIN_ROUND);
break;
case uiDrawLineJoinBevel:
cairo_set_line_join(c->cr, CAIRO_LINE_JOIN_BEVEL);
break;
}
cairo_set_line_width(c->cr, p->Thickness);
cairo_set_dash(c->cr, p->Dashes, p->NumDashes, p->DashPhase);
cairo_stroke(c->cr);
cairo_pattern_destroy(pat);
}
void uiDrawFill(uiDrawContext *c, uiDrawPath *path, uiDrawBrush *b)
{
cairo_pattern_t *pat;
runPath(path, c->cr);
pat = mkbrush(b);
cairo_set_source(c->cr, pat);
switch (pathFillMode(path)) {
case uiDrawFillModeWinding:
cairo_set_fill_rule(c->cr, CAIRO_FILL_RULE_WINDING);
break;
case uiDrawFillModeAlternate:
cairo_set_fill_rule(c->cr, CAIRO_FILL_RULE_EVEN_ODD);
break;
}
cairo_fill(c->cr);
cairo_pattern_destroy(pat);
}
void uiDrawTransform(uiDrawContext *c, uiDrawMatrix *m)
{
cairo_matrix_t cm;
m2c(m, &cm);
cairo_transform(c->cr, &cm);
}
void uiDrawClip(uiDrawContext *c, uiDrawPath *path)
{
runPath(path, c->cr);
switch (pathFillMode(path)) {
case uiDrawFillModeWinding:
cairo_set_fill_rule(c->cr, CAIRO_FILL_RULE_WINDING);
break;
case uiDrawFillModeAlternate:
cairo_set_fill_rule(c->cr, CAIRO_FILL_RULE_EVEN_ODD);
break;
}
cairo_clip(c->cr);
}
void uiDrawSave(uiDrawContext *c)
{
cairo_save(c->cr);
}
void uiDrawRestore(uiDrawContext *c)
{
cairo_restore(c->cr);
}
// bitmap API
uiDrawBitmap* uiDrawNewBitmap(uiDrawContext* c, int width, int height)
{
/*uiDrawBitmap* bmp;
HRESULT hr;
bmp = uiNew(uiDrawBitmap);
D2D1_BITMAP_PROPERTIES bp2 = D2D1::BitmapProperties();
bp2.dpiX = 0;
bp2.dpiY = 0;
bp2.pixelFormat = D2D1::PixelFormat(DXGI_FORMAT_R8G8B8A8_UNORM, D2D1_ALPHA_MODE_IGNORE);
//bp2.pixelFormat = D2D1::PixelFormat(DXGI_FORMAT_B8G8R8A8_UNORM, D2D1_ALPHA_MODE_IGNORE);
// TODO: fallback: convert to BGRA if needed (RGBA only works in hardware mode)
c->rt->BeginDraw();
hr = c->rt->CreateBitmap(D2D1::SizeU(width,height), NULL, 0, &bp2, &bmp->bmp);
if (hr != S_OK)
logHRESULT(L"error creating bitmap", hr);
c->rt->EndDraw();
bmp->Width = width;
bmp->Height = height;
bmp->Stride = width*4;
return bmp;*/
return NULL;
}
void uiDrawBitmapUpdate(uiDrawBitmap* bmp, const void* data)
{
//D2D1_RECT_U rekt = D2D1::RectU(0, 0, bmp->Width, bmp->Height);
//bmp->bmp->CopyFromMemory(&rekt, data, bmp->Stride);
}
void uiDrawBitmapDraw(uiDrawContext* c, uiDrawBitmap* bmp, uiRect* srcrect, uiRect* dstrect)
{
/*D2D_RECT_F _srcrect = D2D1::RectF(srcrect->X, srcrect->Y, srcrect->X+srcrect->Width, srcrect->Y+srcrect->Height);
D2D_RECT_F _dstrect = D2D1::RectF(dstrect->X, dstrect->Y, dstrect->X+dstrect->Width, dstrect->Y+dstrect->Height);
c->rt->DrawBitmap(bmp->bmp, &_dstrect, 1.0f, D2D1_BITMAP_INTERPOLATION_MODE_LINEAR, &_srcrect);*/
}
void uiDrawFreeBitmap(uiDrawBitmap* bmp)
{
//bmp->bmp->Release();
//uiFree(bmp);
}
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