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[MSPAINT] Mouse Wheel support (#4195)

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Improve usability by mouse wheel handling. Plain wheel, Ctrl+Wheel, and Shift+Wheel. CORE-17937
This commit is contained in:
Katayama Hirofumi MZ 2021-12-27 22:20:22 +09:00 committed by GitHub
parent 29718e009a
commit 90c3f89bb2
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GPG key ID: 4AEE18F83AFDEB23
10 changed files with 78 additions and 3 deletions
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2
base/applications/mspaint/common.h
View file

@ -26,3 +26,5 @@ static inline int UnZoomed(int xy)
}
#define GRIP_SIZE 3
#define MIN_ZOOM 125
#define MAX_ZOOM 8000

9
base/applications/mspaint/imgarea.cpp
View file

@ -172,7 +172,7 @@ LRESULT CImgAreaWindow::OnLButtonDown(UINT nMsg, WPARAM wParam, LPARAM lParam, B
imageModel.Undo();
}
Invalidate(FALSE);
if ((toolsModel.GetActiveTool() == TOOL_ZOOM) && (toolsModel.GetZoom() < 8000))
if ((toolsModel.GetActiveTool() == TOOL_ZOOM) && (toolsModel.GetZoom() < MAX_ZOOM))
zoomTo(toolsModel.GetZoom() * 2, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
return 0;
}
@ -192,7 +192,7 @@ LRESULT CImgAreaWindow::OnRButtonDown(UINT nMsg, WPARAM wParam, LPARAM lParam, B
imageModel.Undo();
}
Invalidate(FALSE);
if ((toolsModel.GetActiveTool() == TOOL_ZOOM) && (toolsModel.GetZoom() > 125))
if ((toolsModel.GetActiveTool() == TOOL_ZOOM) && (toolsModel.GetZoom() > MIN_ZOOM))
zoomTo(toolsModel.GetZoom() / 2, GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
return 0;
}
@ -419,3 +419,8 @@ LRESULT CImgAreaWindow::OnImageModelImageChanged(UINT nMsg, WPARAM wParam, LPARA
Invalidate(FALSE);
return 0;
}
LRESULT CImgAreaWindow::OnMouseWheel(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
return ::SendMessage(GetParent(), nMsg, wParam, lParam);
}

2
base/applications/mspaint/imgarea.h
View file

@ -24,6 +24,7 @@ public:
MESSAGE_HANDLER(WM_LBUTTONUP, OnLButtonUp)
MESSAGE_HANDLER(WM_RBUTTONUP, OnRButtonUp)
MESSAGE_HANDLER(WM_MOUSEMOVE, OnMouseMove)
MESSAGE_HANDLER(WM_MOUSEWHEEL, OnMouseWheel)
MESSAGE_HANDLER(WM_MOUSELEAVE, OnMouseLeave)
MESSAGE_HANDLER(WM_IMAGEMODELDIMENSIONSCHANGED, OnImageModelDimensionsChanged)
MESSAGE_HANDLER(WM_IMAGEMODELIMAGECHANGED, OnImageModelImageChanged)
@ -42,6 +43,7 @@ private:
LRESULT OnLButtonUp(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnRButtonUp(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnMouseMove(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnMouseWheel(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnMouseLeave(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnImageModelDimensionsChanged(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnImageModelImageChanged(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);

5
base/applications/mspaint/scrollbox.cpp
View file

@ -179,3 +179,8 @@ LRESULT CScrollboxWindow::OnLButtonDown(UINT nMsg, WPARAM wParam, LPARAM lParam,
pointSP = 0; // resets the point-buffer of the polygon and bezier functions
return 0;
}
LRESULT CScrollboxWindow::OnMouseWheel(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
return ::SendMessage(GetParent(), nMsg, wParam, lParam);
}

2
base/applications/mspaint/scrollbox.h
View file

@ -18,12 +18,14 @@ public:
MESSAGE_HANDLER(WM_HSCROLL, OnHScroll)
MESSAGE_HANDLER(WM_VSCROLL, OnVScroll)
MESSAGE_HANDLER(WM_LBUTTONDOWN, OnLButtonDown)
MESSAGE_HANDLER(WM_MOUSEWHEEL, OnMouseWheel)
END_MSG_MAP()
LRESULT OnSize(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnHScroll(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnVScroll(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnLButtonDown(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnMouseWheel(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
};
void UpdateScrollbox();

5
base/applications/mspaint/selection.cpp
View file

@ -280,3 +280,8 @@ LRESULT CSelectionWindow::OnSelectionModelRefreshNeeded(UINT nMsg, WPARAM wParam
ForceRefreshSelectionContents();
return 0;
}
LRESULT CSelectionWindow::OnMouseWheel(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
return ::SendMessage(GetParent(), nMsg, wParam, lParam);
}

2
base/applications/mspaint/selection.h
View file

@ -22,6 +22,7 @@ public:
MESSAGE_HANDLER(WM_SETCURSOR, OnSetCursor)
MESSAGE_HANDLER(WM_LBUTTONDOWN, OnLButtonDown)
MESSAGE_HANDLER(WM_MOUSEMOVE, OnMouseMove)
MESSAGE_HANDLER(WM_MOUSEWHEEL, OnMouseWheel)
MESSAGE_HANDLER(WM_LBUTTONUP, OnLButtonUp)
MESSAGE_HANDLER(WM_PALETTEMODELCOLORCHANGED, OnPaletteModelColorChanged)
MESSAGE_HANDLER(WM_TOOLSMODELSETTINGSCHANGED, OnToolsModelSettingsChanged)
@ -37,6 +38,7 @@ public:
LRESULT OnSetCursor(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnLButtonDown(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnMouseMove(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnMouseWheel(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnLButtonUp(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnPaletteModelColorChanged(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnToolsModelSettingsChanged(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);

2
base/applications/mspaint/toolsettings.cpp
View file

@ -255,7 +255,7 @@ LRESULT CToolSettingsWindow::OnToolsModelZoomChanged(UINT nMsg, WPARAM wParam, L
int tbPos = 0;
int tempZoom = toolsModel.GetZoom();
while (tempZoom > 125)
while (tempZoom > MIN_ZOOM)
{
tbPos++;
tempZoom = tempZoom >> 1;

50
base/applications/mspaint/winproc.cpp
View file

@ -157,6 +157,56 @@ void CMainWindow::InsertSelectionFromHBITMAP(HBITMAP bitmap, HWND window)
ForceRefreshSelectionContents();
}
LRESULT CMainWindow::OnMouseWheel(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
INT zDelta = (SHORT)HIWORD(wParam);
if (::GetAsyncKeyState(VK_CONTROL) < 0)
{
if (zDelta < 0)
{
if (toolsModel.GetZoom() > MIN_ZOOM)
zoomTo(toolsModel.GetZoom() / 2, 0, 0);
}
else if (zDelta > 0)
{
if (toolsModel.GetZoom() < MAX_ZOOM)
zoomTo(toolsModel.GetZoom() * 2, 0, 0);
}
}
else
{
UINT nCount = 3;
if (::GetAsyncKeyState(VK_SHIFT) < 0)
{
#ifndef SPI_GETWHEELSCROLLCHARS
#define SPI_GETWHEELSCROLLCHARS 0x006C // Needed for pre-NT6 PSDK
#endif
SystemParametersInfoW(SPI_GETWHEELSCROLLCHARS, 0, &nCount, 0);
for (UINT i = 0; i < nCount; ++i)
{
if (zDelta < 0)
::PostMessageW(scrollboxWindow, WM_HSCROLL, MAKEWPARAM(SB_LINEDOWN, 0), 0);
else if (zDelta > 0)
::PostMessageW(scrollboxWindow, WM_HSCROLL, MAKEWPARAM(SB_LINEUP, 0), 0);
}
}
else
{
SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &nCount, 0);
for (UINT i = 0; i < nCount; ++i)
{
if (zDelta < 0)
::PostMessageW(scrollboxWindow, WM_VSCROLL, MAKEWPARAM(SB_LINEDOWN, 0), 0);
else if (zDelta > 0)
::PostMessageW(scrollboxWindow, WM_VSCROLL, MAKEWPARAM(SB_LINEUP, 0), 0);
}
}
}
return 0;
}
LRESULT CMainWindow::OnDropFiles(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
TCHAR droppedfile[MAX_PATH];

2
base/applications/mspaint/winproc.h
View file

@ -26,6 +26,7 @@ public:
MESSAGE_HANDLER(WM_KEYDOWN, OnKeyDown)
MESSAGE_HANDLER(WM_SYSCOLORCHANGE, OnSysColorChange)
MESSAGE_HANDLER(WM_COMMAND, OnCommand)
MESSAGE_HANDLER(WM_MOUSEWHEEL, OnMouseWheel)
END_MSG_MAP()
LRESULT OnDropFiles(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
@ -39,6 +40,7 @@ public:
LRESULT OnKeyDown(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnSysColorChange(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnCommand(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
LRESULT OnMouseWheel(UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
void alignChildrenToMainWindow();
void saveImage(BOOL overwrite);