sizebox.cpp File Reference

#include "precomp.h"

Include dependency graph for sizebox.cpp:

Go to the source code of this file.

Functions
BOOL	setCursorOnSizeBox (CANVAS_HITTEST hit)
BOOL	getSizeBoxRect (LPRECT prc, CANVAS_HITTEST hit, LPCRECT prcBase)
CANVAS_HITTEST	getSizeBoxHitTest (POINT pt, LPCRECT prcBase)
VOID	drawSizeBoxes (HDC hdc, LPCRECT prcBase, BOOL bDrawFrame, LPCRECT prcPaint)

Variables
static LPCWSTR	s_cursor_shapes []

Function Documentation

drawSizeBoxes()

VOID drawSizeBoxes	(	HDC	hdc,
		LPCRECT	prcBase,
		BOOL	bDrawFrame,
		LPCRECT	prcPaint
	)

Definition at line 104 of file sizebox.cpp.

{
    CRect rc, rcIntersect;
 
    if (prcPaint && !::IntersectRect(&rcIntersect, prcPaint, prcBase))
        return;
 
    if (bDrawFrame)
    {
        rc = *prcBase;
        ::InflateRect(&rc, -GRIP_SIZE / 2, -GRIP_SIZE / 2);
 
        LOGBRUSH logBrush = { BS_HOLLOW, 0, 0 };
        COLORREF rgbHighlight = ::GetSysColor(COLOR_HIGHLIGHT);
        HGDIOBJ oldPen = ::SelectObject(hdc, ::CreatePen(PS_DOT, 1, rgbHighlight));
        HGDIOBJ oldBrush = ::SelectObject(hdc, ::CreateBrushIndirect(&logBrush));
        ::Rectangle(hdc, rc.left, rc.top, rc.right, rc.bottom);
        ::DeleteObject(::SelectObject(hdc, oldBrush));
        ::DeleteObject(::SelectObject(hdc, oldPen));
    }
 
    for (INT i = HIT_UPPER_LEFT; i <= HIT_LOWER_RIGHT; ++i)
    {
        getSizeBoxRect(&rc, (CANVAS_HITTEST)i, prcBase);
        if (!prcPaint || ::IntersectRect(&rcIntersect, &rc, prcPaint))
            ::FillRect(hdc, &rc, (HBRUSH)(COLOR_HIGHLIGHT + 1));
    }
}

Referenced by CCanvasWindow::DoDraw(), and CTextEditWindow::DrawGrip().

getSizeBoxHitTest()

CANVAS_HITTEST getSizeBoxHitTest	(	POINT	pt,
		LPCRECT	prcBase
	)

Definition at line 81 of file sizebox.cpp.

{
    RECT rc;
 
    if (!::PtInRect(prcBase, pt))
        return HIT_NONE;
 
    rc = *prcBase;
    ::InflateRect(&rc, -GRIP_SIZE, -GRIP_SIZE);
    if (::PtInRect(&rc, pt))
        return HIT_INNER;
 
    for (INT i = HIT_UPPER_LEFT; i <= HIT_LOWER_RIGHT; ++i)
    {
        CANVAS_HITTEST hit = (CANVAS_HITTEST)i;
        getSizeBoxRect(&rc, hit, prcBase);
        if (::PtInRect(&rc, pt))
            return hit;
    }
 
    return HIT_BORDER;
}

Referenced by CCanvasWindow::CanvasHitTest(), CTextEditWindow::DoHitTest(), and CCanvasWindow::SelectionHitTest().

getSizeBoxRect()

BOOL getSizeBoxRect	(	LPRECT	prc,
		CANVAS_HITTEST	hit,
		LPCRECT	prcBase
	)

Definition at line 31 of file sizebox.cpp.

{
    switch (hit)
    {
        case HIT_UPPER_LEFT:
            prc->left = prcBase->left;
            prc->top = prcBase->top;
            break;
        case HIT_UPPER_CENTER:
            prc->left = (prcBase->left + prcBase->right - GRIP_SIZE) / 2;
            prc->top = prcBase->top;
            break;
        case HIT_UPPER_RIGHT:
            prc->left = prcBase->right - GRIP_SIZE;
            prc->top = prcBase->top;
            break;
        case HIT_MIDDLE_LEFT:
            prc->left = prcBase->left;
            prc->top = (prcBase->top + prcBase->bottom - GRIP_SIZE) / 2;
            break;
        case HIT_MIDDLE_RIGHT:
            prc->left = prcBase->right - GRIP_SIZE;
            prc->top = (prcBase->top + prcBase->bottom - GRIP_SIZE) / 2;
            break;
        case HIT_LOWER_LEFT:
            prc->left = prcBase->left;
            prc->top = prcBase->bottom - GRIP_SIZE;
            break;
        case HIT_LOWER_CENTER:
            prc->left = (prcBase->left + prcBase->right - GRIP_SIZE) / 2;
            prc->top = prcBase->bottom - GRIP_SIZE;
            break;
        case HIT_LOWER_RIGHT:
            prc->left = prcBase->right - GRIP_SIZE;
            prc->top = prcBase->bottom - GRIP_SIZE;
            break;
        case HIT_INNER:
            *prc = *prcBase;
            ::InflateRect(prc, -GRIP_SIZE, -GRIP_SIZE);
            return TRUE;
        default:
            ::SetRectEmpty(prc);
            return FALSE;
    }
 
    prc->right = prc->left + GRIP_SIZE;
    prc->bottom = prc->top + GRIP_SIZE;
    return TRUE;
}

Referenced by drawSizeBoxes(), and getSizeBoxHitTest().

setCursorOnSizeBox()

BOOL setCursorOnSizeBox

(

CANVAS_HITTEST

hit

)

Definition at line 21 of file sizebox.cpp.

{
    if (HIT_UPPER_LEFT <= hit && hit <= HIT_LOWER_RIGHT)
    {
        ::SetCursor(::LoadCursor(NULL, s_cursor_shapes[hit - HIT_UPPER_LEFT]));
        return TRUE;
    }
    return FALSE;
}

Referenced by CCanvasWindow::OnSetCursor().

Variable Documentation

s_cursor_shapes

LPCWSTR s_cursor_shapes[]

static

Initial value:

=
{
    IDC_SIZENWSE, IDC_SIZENS, IDC_SIZENESW,
    IDC_SIZEWE,               IDC_SIZEWE,
    IDC_SIZENESW, IDC_SIZENS, IDC_SIZENWSE,
}

Definition at line 12 of file sizebox.cpp.

Referenced by setCursorOnSizeBox().