diff options
Diffstat (limited to 'src/libui_sdl/libui/windows/areadraw.cpp')
| -rw-r--r-- | src/libui_sdl/libui/windows/areadraw.cpp | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/src/libui_sdl/libui/windows/areadraw.cpp b/src/libui_sdl/libui/windows/areadraw.cpp deleted file mode 100644 index f369255..0000000 --- a/src/libui_sdl/libui/windows/areadraw.cpp +++ /dev/null @@ -1,170 +0,0 @@ -// 8 september 2015 -#include "uipriv_windows.hpp" -#include "area.hpp" - -static HRESULT doPaint(uiArea *a, ID2D1RenderTarget *rt, RECT *clip) -{ - uiAreaHandler *ah = a->ah; - uiAreaDrawParams dp; - - if (a->openGL) - { - //(*(ah->Draw))(ah, a, &dp); - return S_OK; - } - - COLORREF bgcolorref; - D2D1_COLOR_F bgcolor; - D2D1_MATRIX_3X2_F scrollTransform; - - // no need to save or restore the graphics state to reset transformations; it's handled by resetTarget() in draw.c, called during the following - dp.Context = newContext(rt); - - loadAreaSize(a, &(dp.AreaWidth), &(dp.AreaHeight)); - - dp.ClipX = clip->left; - dp.ClipY = clip->top; - dp.ClipWidth = clip->right - clip->left; - dp.ClipHeight = clip->bottom - clip->top; - if (a->scrolling) { - dp.ClipX += a->hscrollpos; - dp.ClipY += a->vscrollpos; - } - - rt->BeginDraw(); - - { - float dpi_x, dpi_y; - D2D1_MATRIX_3X2_F dm; - rt->GetDpi(&dpi_x, &dpi_y); - ZeroMemory(&dm, sizeof (D2D1_MATRIX_3X2_F)); - dm._11 = 96.f/dpi_x; - dm._22 = 96.f/dpi_y; - rt->SetTransform(&dm); - } - - if (a->scrolling) { - ZeroMemory(&scrollTransform, sizeof (D2D1_MATRIX_3X2_F)); - scrollTransform._11 = 1; - scrollTransform._22 = 1; - // negative because we want nonzero scroll positions to move the drawing area up/left - scrollTransform._31 = -a->hscrollpos; - scrollTransform._32 = -a->vscrollpos; - rt->SetTransform(&scrollTransform); - } - - // TODO push axis aligned clip - - // TODO only clear the clip area - // TODO clear with actual background brush - if (a->bgR != -1) - { - bgcolor.r = ((float) a->bgR) / 255.0; - bgcolor.g = ((float) a->bgG) / 255.0; - bgcolor.b = ((float) a->bgB) / 255.0; - bgcolor.a = 1.0; - } - else - { - bgcolorref = GetSysColor(COLOR_BTNFACE); - bgcolor.r = ((float) GetRValue(bgcolorref)) / 255.0; - // due to utter apathy on Microsoft's part, GetGValue() does not work with MSVC's Run-Time Error Checks - // it has not worked since 2008 and they have *never* fixed it - // TODO now that -RTCc has just been deprecated entirely, should we switch back? - bgcolor.g = ((float) ((BYTE) ((bgcolorref & 0xFF00) >> 8))) / 255.0; - bgcolor.b = ((float) GetBValue(bgcolorref)) / 255.0; - bgcolor.a = 1.0; - } - rt->Clear(&bgcolor); - - (*(ah->Draw))(ah, a, &dp); - - freeContext(dp.Context); - - // TODO pop axis aligned clip - - return rt->EndDraw(NULL, NULL); -} - -static void onWM_PAINT(uiArea *a) -{ - RECT clip; - HRESULT hr; - - // do not clear the update rect; we do that ourselves in doPaint() - if (GetUpdateRect(a->hwnd, &clip, FALSE) == 0) { - // set a zero clip rect just in case GetUpdateRect() didn't change clip - clip.left = 0; - clip.top = 0; - clip.right = 0; - clip.bottom = 0; - } - hr = doPaint(a, a->rt, &clip); - switch (hr) { - case S_OK: - if (ValidateRect(a->hwnd, NULL) == 0) - logLastError(L"error validating rect"); - break; - case D2DERR_RECREATE_TARGET: - // DON'T validate the rect - // instead, simply drop the render target - // we'll get another WM_PAINT and make the render target again - // TODO would this require us to invalidate the entire client area? - a->rt->Release();; - a->rt = NULL; - break; - default: - logHRESULT(L"error painting", hr); - } -} - -static void onWM_PRINTCLIENT(uiArea *a, HDC dc) -{ - // TODO???? - if (a->openGL) return; - - ID2D1DCRenderTarget *rt; - RECT client; - HRESULT hr; - - uiWindowsEnsureGetClientRect(a->hwnd, &client); - rt = makeHDCRenderTarget(dc, &client); - hr = doPaint(a, rt, &client); - if (hr != S_OK) - logHRESULT(L"error printing uiArea client area", hr); - rt->Release(); -} - -BOOL areaDoDraw(uiArea *a, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT *lResult) -{ - switch (uMsg) { - case WM_PAINT: - onWM_PAINT(a); - *lResult = 0; - return TRUE; - case WM_PRINTCLIENT: - onWM_PRINTCLIENT(a, (HDC) wParam); - *lResult = 0; - return TRUE; - } - return FALSE; -} - -// TODO only if the render target wasn't just created? -void areaDrawOnResize(uiArea *a, RECT *newClient) -{ - if (!a->openGL) - { - D2D1_SIZE_U size; - - size.width = newClient->right - newClient->left; - size.height = newClient->bottom - newClient->top; - // don't track the error; we'll get that in EndDraw() - // see https://msdn.microsoft.com/en-us/library/windows/desktop/dd370994%28v=vs.85%29.aspx - a->rt->Resize(&size); - } - - // according to Rick Brewster, we must always redraw the entire client area after calling ID2D1RenderTarget::Resize() (see http://stackoverflow.com/a/33222983/3408572) - // we used to have a uiAreaHandler.RedrawOnResize() method to decide this; now you know why we don't anymore - invalidateRect(a->hwnd, NULL, TRUE); -} |