mirror of
https://github.com/reactos/reactos.git
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130 lines
3.9 KiB
C++
130 lines
3.9 KiB
C++
/*
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* PROJECT: PAINT for ReactOS
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* LICENSE: LGPL-2.0-or-later (https://spdx.org/licenses/LGPL-2.0-or-later)
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* PURPOSE: Window procedure of the size boxes
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* COPYRIGHT: Copyright 2015 Benedikt Freisen <b.freisen@gmx.net>
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* Copyright 2017 Katayama Hirofumi MZ <katayama.hirofumi.mz@gmail.com>
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*/
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#include "precomp.h"
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static LPCWSTR s_cursor_shapes[] =
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{
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IDC_SIZENWSE, IDC_SIZENS, IDC_SIZENESW,
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IDC_SIZEWE, IDC_SIZEWE,
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IDC_SIZENESW, IDC_SIZENS, IDC_SIZENWSE,
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};
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/* FUNCTIONS ********************************************************/
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BOOL setCursorOnSizeBox(HITTEST hit)
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{
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if (HIT_UPPER_LEFT <= hit && hit <= HIT_LOWER_RIGHT)
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{
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::SetCursor(::LoadCursorW(NULL, s_cursor_shapes[hit - HIT_UPPER_LEFT]));
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return TRUE;
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}
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return FALSE;
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}
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BOOL getSizeBoxRect(LPRECT prc, HITTEST hit, LPCRECT prcBase)
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{
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switch (hit)
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{
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case HIT_UPPER_LEFT:
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prc->left = prcBase->left;
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prc->top = prcBase->top;
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break;
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case HIT_UPPER_CENTER:
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prc->left = (prcBase->left + prcBase->right - GRIP_SIZE) / 2;
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prc->top = prcBase->top;
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break;
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case HIT_UPPER_RIGHT:
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prc->left = prcBase->right - GRIP_SIZE;
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prc->top = prcBase->top;
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break;
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case HIT_MIDDLE_LEFT:
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prc->left = prcBase->left;
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prc->top = (prcBase->top + prcBase->bottom - GRIP_SIZE) / 2;
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break;
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case HIT_MIDDLE_RIGHT:
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prc->left = prcBase->right - GRIP_SIZE;
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prc->top = (prcBase->top + prcBase->bottom - GRIP_SIZE) / 2;
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break;
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case HIT_LOWER_LEFT:
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prc->left = prcBase->left;
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prc->top = prcBase->bottom - GRIP_SIZE;
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break;
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case HIT_LOWER_CENTER:
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prc->left = (prcBase->left + prcBase->right - GRIP_SIZE) / 2;
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prc->top = prcBase->bottom - GRIP_SIZE;
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break;
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case HIT_LOWER_RIGHT:
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prc->left = prcBase->right - GRIP_SIZE;
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prc->top = prcBase->bottom - GRIP_SIZE;
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break;
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case HIT_INNER:
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*prc = *prcBase;
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::InflateRect(prc, -GRIP_SIZE, -GRIP_SIZE);
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return TRUE;
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default:
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::SetRectEmpty(prc);
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return FALSE;
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}
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prc->right = prc->left + GRIP_SIZE;
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prc->bottom = prc->top + GRIP_SIZE;
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return TRUE;
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}
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HITTEST getSizeBoxHitTest(POINT pt, LPCRECT prcBase)
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{
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CRect rc;
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if (!::PtInRect(prcBase, pt))
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return HIT_NONE;
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rc = *prcBase;
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rc.InflateRect(-GRIP_SIZE, -GRIP_SIZE);
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if (rc.PtInRect(pt))
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return HIT_INNER;
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for (INT i = HIT_UPPER_LEFT; i <= HIT_LOWER_RIGHT; ++i)
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{
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HITTEST hit = (HITTEST)i;
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getSizeBoxRect(&rc, hit, prcBase);
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if (rc.PtInRect(pt))
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return hit;
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}
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return HIT_BORDER;
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}
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VOID drawSizeBoxes(HDC hdc, LPCRECT prcBase, BOOL bDrawFrame, LPCRECT prcPaint)
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{
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CRect rc, rcIntersect;
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if (prcPaint && !::IntersectRect(&rcIntersect, prcPaint, prcBase))
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return;
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if (bDrawFrame)
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{
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rc = *prcBase;
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rc.InflateRect(-GRIP_SIZE / 2, -GRIP_SIZE / 2);
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LOGBRUSH logBrush = { BS_HOLLOW, 0, 0 };
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COLORREF rgbHighlight = ::GetSysColor(COLOR_HIGHLIGHT);
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HGDIOBJ oldPen = ::SelectObject(hdc, ::CreatePen(PS_DOT, 1, rgbHighlight));
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HGDIOBJ oldBrush = ::SelectObject(hdc, ::CreateBrushIndirect(&logBrush));
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::Rectangle(hdc, rc.left, rc.top, rc.right, rc.bottom);
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::DeleteObject(::SelectObject(hdc, oldBrush));
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::DeleteObject(::SelectObject(hdc, oldPen));
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}
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for (INT i = HIT_UPPER_LEFT; i <= HIT_LOWER_RIGHT; ++i)
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{
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getSizeBoxRect(&rc, (HITTEST)i, prcBase);
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if (!prcPaint || ::IntersectRect(&rcIntersect, &rc, prcPaint))
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::FillRect(hdc, &rc, (HBRUSH)(COLOR_HIGHLIGHT + 1));
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}
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}
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