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Smoother mouse wheel scrolling

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This commit is contained in:
Brian Fiete 2020-05-25 00:10:35 -07:00
parent 5a5287bc8b
commit 84aecbca81
11 changed files with 20 additions and 15 deletions
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2
BeefySysLib/BFWindow.h
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@ -20,7 +20,7 @@ typedef void (*BFWindow_MouseMove)(BFWindow* window, int x, int y);
typedef void (*BFWindow_MouseProxyMove)(BFWindow* window, int x, int y);
typedef void (*BFWindow_MouseDown)(BFWindow* window, int x, int y, int btn, int btnCount);
typedef void (*BFWindow_MouseUp)(BFWindow* window, int x, int y, int btn);
typedef void (*BFWindow_MouseWheel)(BFWindow* window, int x, int y, int delta);
typedef void (*BFWindow_MouseWheel)(BFWindow* window, int x, int y, float delta);
typedef void (*BFWindow_MouseLeave)(BFWindow* window);
typedef void (*BFWindow_MenuItemSelectedFunc)(BFWindow* window, BFMenu* menu);

9
BeefySysLib/platform/win/WinBFApp.cpp
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@ -634,11 +634,16 @@ LRESULT WinBFWindow::WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPar
aWindow->mIsMouseInside = true;
cursorWindow = aWindow;
}
}
}
++itr;
}
}
UINT ucNumLines = 0;
SystemParametersInfo(SPI_GETWHEELSCROLLLINES, 0, &ucNumLines, 0);
if (ucNumLines == 0)
ucNumLines = 3; // Default
if ((cursorWindow != this) && (mIsMouseInside))
{
mMouseLeaveFunc(this);
@ -648,7 +653,7 @@ LRESULT WinBFWindow::WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPar
POINT pt = {x, y};
ScreenToClient(cursorWindow->mHWnd, &pt);
int delta = ((int16)HIWORD(wParam)) / 120;
float delta = ((int16)HIWORD(wParam)) / 120.0f * (float)ucNumLines;
mMouseWheelFunc(cursorWindow, pt.x, pt.y, delta);
}
break;