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Implemented the previewer. That just leaves the opacity slider!

This commit is contained in:
Pietro Gagliardi 2016-05-18 00:20:41 -04:00
parent 22a1525d24
commit 341f8373d3
1 changed files with 55 additions and 1 deletions
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56
windows/colordialog.cpp
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@ -285,7 +285,7 @@ static void updateDialog(struct colorDialog *c, HWND whichChanged)
// TODO TRUE?
invalidateRect(c->svChooser, NULL, TRUE);
invalidateRect(c->hSlider, NULL, TRUE);
//TODO invalidateRect(c->preview, NULL, TRUE);
invalidateRect(c->preview, NULL, TRUE);
//TODO invalidateRect(c->opacitySlider, NULL, TRUE);
c->updating = FALSE;
@ -688,6 +688,59 @@ static LRESULT CALLBACK hSliderSubProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPAR
return DefSubclassProc(hwnd, uMsg, wParam, lParam);
}
static void drawPreview(struct colorDialog *c, ID2D1RenderTarget *rt)
{
D2D1_SIZE_F size;
D2D1_RECT_F rect;
double r, g, b;
D2D1_COLOR_F color;
D2D1_BRUSH_PROPERTIES bprop;
ID2D1SolidColorBrush *brush;
HRESULT hr;
size = rt->GetSize();
rect.left = 0;
rect.top = 0;
rect.right = size.width;
rect.bottom = size.height;
drawGrid(rt, &rect);
hsv2RGB(c->h, c->s, c->v, &r, &g, &b);
color.r = r;
color.g = g;
color.b = b;
color.a = c->a;
ZeroMemory(&bprop, sizeof (D2D1_BRUSH_PROPERTIES));
bprop.opacity = 1.0;
bprop.transform._11 = 1;
bprop.transform._22 = 1;
hr = rt->CreateSolidColorBrush(&color, &bprop, &brush);
if (hr != S_OK)
logHRESULT(L"error creating brush for preview", hr);
rt->FillRectangle(&rect, brush);
brush->Release();
}
static LRESULT CALLBACK previewSubProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData)
{
ID2D1RenderTarget *rt;
struct colorDialog *c;
c = (struct colorDialog *) dwRefData;
switch (uMsg) {
case msgD2DScratchPaint:
rt = (ID2D1RenderTarget *) lParam;
drawPreview(c, rt);
return 0;
case WM_NCDESTROY:
if (RemoveWindowSubclass(hwnd, previewSubProc, uIdSubclass) == FALSE)
logLastError(L"error removing color dialog previewer subclass");
break;
}
return DefSubclassProc(hwnd, uMsg, wParam, lParam);
}
// TODO extract into d2dscratch.cpp, use in font dialog
HWND replaceWithD2DScratch(HWND parent, int id, SUBCLASSPROC subproc, void *data)
{
@ -815,6 +868,7 @@ static struct colorDialog *beginColorDialog(HWND hwnd, LPARAM lParam)
c->svChooser = replaceWithD2DScratch(c->hwnd, rcColorSVChooser, svChooserSubProc, c);
c->hSlider = replaceWithD2DScratch(c->hwnd, rcColorHSlider, hSliderSubProc, c);
c->preview = replaceWithD2DScratch(c->hwnd, rcPreview, previewSubProc, c);
fixupControlPositions(c);