mirror of
https://github.com/reactos/reactos.git
synced 2024-07-01 02:10:07 +00:00
1272 lines
34 KiB
C++
1272 lines
34 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: Things which should not be in the mouse event handler itself
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* COPYRIGHT: Copyright 2015 Benedikt Freisen <b.freisen@gmx.net>
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* Copyright 2021-2023 Katayama Hirofumi MZ <katayama.hirofumi.mz@gmail.com>
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*/
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#include "precomp.h"
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#include <atlalloc.h>
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static SIZE_T s_cPoints = 0;
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static CHeapPtr<POINT, CLocalAllocator> s_dynamicPoints;
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static POINT s_staticPoints[512]; // 512 is enough
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static SIZE_T s_maxPoints = _countof(s_staticPoints);
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static LPPOINT s_pPoints = s_staticPoints;
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static POINT g_ptStart, g_ptEnd;
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/* FUNCTIONS ********************************************************/
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void
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regularize(LONG x0, LONG y0, LONG& x1, LONG& y1)
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{
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if (labs(x1 - x0) >= labs(y1 - y0))
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y1 = y0 + (y1 > y0 ? labs(x1 - x0) : -labs(x1 - x0));
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else
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x1 = x0 + (x1 > x0 ? labs(y1 - y0) : -labs(y1 - y0));
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}
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void
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roundTo8Directions(LONG x0, LONG y0, LONG& x1, LONG& y1)
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{
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if (labs(x1 - x0) >= labs(y1 - y0))
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{
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if (labs(y1 - y0) * 5 < labs(x1 - x0) * 2)
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y1 = y0;
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else
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y1 = y0 + (y1 > y0 ? labs(x1 - x0) : -labs(x1 - x0));
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}
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else
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{
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if (labs(x1 - x0) * 5 < labs(y1 - y0) * 2)
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x1 = x0;
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else
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x1 = x0 + (x1 > x0 ? labs(y1 - y0) : -labs(y1 - y0));
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}
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}
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BOOL nearlyEqualPoints(INT x0, INT y0, INT x1, INT y1)
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{
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INT cxThreshold = toolsModel.GetLineWidth() + UnZoomed(GetSystemMetrics(SM_CXDRAG));
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INT cyThreshold = toolsModel.GetLineWidth() + UnZoomed(GetSystemMetrics(SM_CYDRAG));
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return (abs(x1 - x0) <= cxThreshold) && (abs(y1 - y0) <= cyThreshold);
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}
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void getBoundaryOfPoints(RECT& rcBoundary, SIZE_T cPoints, const POINT *pPoints)
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{
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POINT ptMin = { MAXLONG, MAXLONG }, ptMax = { (LONG)MINLONG, (LONG)MINLONG };
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while (cPoints-- > 0)
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{
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LONG x = pPoints->x, y = pPoints->y;
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ptMin = { min(x, ptMin.x), min(y, ptMin.y) };
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ptMax = { max(x, ptMax.x), max(y, ptMax.y) };
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++pPoints;
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}
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ptMax.x += 1;
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ptMax.y += 1;
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CRect rc(ptMin, ptMax);
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rcBoundary = rc;
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}
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void ShiftPoints(INT dx, INT dy)
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{
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for (SIZE_T i = 0; i < s_cPoints; ++i)
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{
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POINT& pt = s_pPoints[i];
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pt.x += dx;
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pt.y += dy;
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}
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}
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void BuildMaskFromPoints()
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{
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CRect rc;
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getBoundaryOfPoints(rc, s_cPoints, s_pPoints);
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ShiftPoints(-rc.left, -rc.top);
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HDC hdcMem = ::CreateCompatibleDC(NULL);
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HBITMAP hbmMask = ::CreateBitmap(rc.Width(), rc.Height(), 1, 1, NULL);
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HGDIOBJ hbmOld = ::SelectObject(hdcMem, hbmMask);
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::FillRect(hdcMem, &rc, (HBRUSH)::GetStockObject(BLACK_BRUSH));
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HGDIOBJ hPenOld = ::SelectObject(hdcMem, GetStockObject(NULL_PEN));
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HGDIOBJ hbrOld = ::SelectObject(hdcMem, GetStockObject(WHITE_BRUSH));
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::Polygon(hdcMem, s_pPoints, (INT)s_cPoints);
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::SelectObject(hdcMem, hbrOld);
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::SelectObject(hdcMem, hPenOld);
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::SelectObject(hdcMem, hbmOld);
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::DeleteDC(hdcMem);
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selectionModel.setMask(rc, hbmMask);
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}
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void ToolBase::reset()
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{
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if (s_pPoints != s_staticPoints)
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{
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s_dynamicPoints.Free();
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s_pPoints = s_staticPoints;
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s_maxPoints = _countof(s_staticPoints);
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}
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s_cPoints = 0;
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g_ptEnd = g_ptStart = { -1, -1 };
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if (selectionModel.m_bShow)
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{
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selectionModel.Landing();
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selectionModel.HideSelection();
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}
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}
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void ToolBase::OnEndDraw(BOOL bCancel)
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{
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reset();
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imageModel.NotifyImageChanged();
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}
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void ToolBase::beginEvent()
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{
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m_hdc = imageModel.GetDC();
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m_fg = paletteModel.GetFgColor();
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m_bg = paletteModel.GetBgColor();
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}
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void ToolBase::endEvent()
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{
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m_hdc = NULL;
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}
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static void pushToPoints(LONG x, LONG y)
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{
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if (s_cPoints + 1 >= s_maxPoints)
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{
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SIZE_T newMax = s_maxPoints + 512;
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SIZE_T cbNew = newMax * sizeof(POINT);
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if (!s_dynamicPoints.ReallocateBytes(cbNew))
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{
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ATLTRACE("%d, %d, %d\n", (INT)s_cPoints, (INT)s_maxPoints, (INT)cbNew);
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return;
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}
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if (s_pPoints == s_staticPoints)
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CopyMemory(s_dynamicPoints, s_staticPoints, s_cPoints * sizeof(POINT));
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s_pPoints = s_dynamicPoints;
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s_maxPoints = newMax;
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}
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s_pPoints[s_cPoints++] = { x, y };
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}
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/* TOOLS ********************************************************/
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struct TwoPointDrawTool : ToolBase
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{
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BOOL m_bLeftButton = FALSE;
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BOOL m_bDrawing = FALSE;
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void OnButtonDown(BOOL bLeftButton, LONG x, LONG y, BOOL bDoubleClick) override
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{
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m_bLeftButton = bLeftButton;
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m_bDrawing = TRUE;
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imageModel.NotifyImageChanged();
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}
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BOOL OnMouseMove(BOOL bLeftButton, LONG& x, LONG& y) override
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{
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imageModel.NotifyImageChanged();
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return TRUE;
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}
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BOOL OnButtonUp(BOOL bLeftButton, LONG& x, LONG& y) override
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{
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CRect rcPartial(g_ptStart, g_ptEnd);
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rcPartial.NormalizeRect();
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SIZE size = toolsModel.GetToolSize();
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rcPartial.InflateRect((size.cx + 1) / 2, (size.cy + 1) / 2);
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imageModel.PushImageForUndo(rcPartial);
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OnDrawOverlayOnImage(m_hdc);
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m_bDrawing = FALSE;
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imageModel.NotifyImageChanged();
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return TRUE;
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}
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void OnEndDraw(BOOL bCancel) override
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{
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m_bDrawing = FALSE;
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ToolBase::OnEndDraw(bCancel);
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}
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void OnSpecialTweak(BOOL bMinus) override
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{
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toolsModel.MakeLineThickerOrThinner(bMinus);
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}
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};
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typedef enum DIRECTION
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{
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NO_DIRECTION = -1,
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DIRECTION_HORIZONTAL,
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DIRECTION_VERTICAL,
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DIRECTION_DIAGONAL_RIGHT_DOWN,
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DIRECTION_DIAGONAL_RIGHT_UP,
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} DIRECTION;
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#define THRESHOULD_DEG 15
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static DIRECTION
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GetDirection(LONG x0, LONG y0, LONG x1, LONG y1)
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{
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LONG dx = x1 - x0, dy = y1 - y0;
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if (labs(dx) <= 8 && labs(dy) <= 8)
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return NO_DIRECTION;
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double radian = atan2((double)dy, (double)dx);
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if (radian < DEG2RAD(-180 + THRESHOULD_DEG))
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{
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ATLTRACE("DIRECTION_HORIZONTAL: %ld\n", RAD2DEG(radian));
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return DIRECTION_HORIZONTAL;
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}
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if (radian < DEG2RAD(-90 - THRESHOULD_DEG))
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{
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ATLTRACE("DIRECTION_DIAGONAL_RIGHT_DOWN: %ld\n", RAD2DEG(radian));
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return DIRECTION_DIAGONAL_RIGHT_DOWN;
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}
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if (radian < DEG2RAD(-90 + THRESHOULD_DEG))
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{
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ATLTRACE("DIRECTION_VERTICAL: %ld\n", RAD2DEG(radian));
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return DIRECTION_VERTICAL;
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}
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if (radian < DEG2RAD(-THRESHOULD_DEG))
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{
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ATLTRACE("DIRECTION_DIAGONAL_RIGHT_UP: %ld\n", RAD2DEG(radian));
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return DIRECTION_DIAGONAL_RIGHT_UP;
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}
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if (radian < DEG2RAD(+THRESHOULD_DEG))
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{
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ATLTRACE("DIRECTION_HORIZONTAL: %ld\n", RAD2DEG(radian));
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return DIRECTION_HORIZONTAL;
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}
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if (radian < DEG2RAD(+90 - THRESHOULD_DEG))
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{
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ATLTRACE("DIRECTION_DIAGONAL_RIGHT_DOWN: %ld\n", RAD2DEG(radian));
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return DIRECTION_DIAGONAL_RIGHT_DOWN;
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}
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if (radian < DEG2RAD(+90 + THRESHOULD_DEG))
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{
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ATLTRACE("DIRECTION_VERTICAL: %ld\n", RAD2DEG(radian));
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return DIRECTION_VERTICAL;
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}
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if (radian < DEG2RAD(+180 - THRESHOULD_DEG))
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{
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ATLTRACE("DIRECTION_DIAGONAL_RIGHT_UP: %ld\n", RAD2DEG(radian));
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return DIRECTION_DIAGONAL_RIGHT_UP;
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}
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ATLTRACE("DIRECTION_HORIZONTAL: %ld\n", RAD2DEG(radian));
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return DIRECTION_HORIZONTAL;
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}
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static void
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RestrictDrawDirection(DIRECTION dir, LONG x0, LONG y0, LONG& x1, LONG& y1)
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{
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switch (dir)
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{
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case NO_DIRECTION:
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default:
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return;
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case DIRECTION_HORIZONTAL:
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y1 = y0;
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break;
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case DIRECTION_VERTICAL:
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x1 = x0;
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break;
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case DIRECTION_DIAGONAL_RIGHT_DOWN:
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y1 = y0 + (x1 - x0);
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break;
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case DIRECTION_DIAGONAL_RIGHT_UP:
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x1 = x0 - (y1 - y0);
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break;
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}
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}
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struct SmoothDrawTool : ToolBase
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{
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DIRECTION m_direction = NO_DIRECTION;
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BOOL m_bShiftDown = FALSE;
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BOOL m_bLeftButton = FALSE;
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virtual void OnDraw(HDC hdc, BOOL bLeftButton, POINT pt0, POINT pt1) = 0;
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void OnButtonDown(BOOL bLeftButton, LONG x, LONG y, BOOL bDoubleClick) override
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{
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m_direction = NO_DIRECTION;
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m_bShiftDown = (::GetKeyState(VK_SHIFT) & 0x8000); // Is Shift key pressed?
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m_bLeftButton = bLeftButton;
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s_cPoints = 0;
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pushToPoints(x, y);
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pushToPoints(x, y); // We have to draw the first point
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imageModel.NotifyImageChanged();
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}
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BOOL OnMouseMove(BOOL bLeftButton, LONG& x, LONG& y) override
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{
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if (!m_bShiftDown)
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{
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pushToPoints(x, y);
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imageModel.NotifyImageChanged();
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return TRUE;
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}
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if (m_direction == NO_DIRECTION)
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{
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m_direction = GetDirection(g_ptStart.x, g_ptStart.y, x, y);
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if (m_direction == NO_DIRECTION)
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return FALSE;
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}
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RestrictDrawDirection(m_direction, g_ptStart.x, g_ptStart.y, x, y);
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pushToPoints(x, y);
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imageModel.NotifyImageChanged();
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return TRUE;
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}
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BOOL OnButtonUp(BOOL bLeftButton, LONG& x, LONG& y) override
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{
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if (m_bShiftDown && m_direction != NO_DIRECTION)
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RestrictDrawDirection(m_direction, g_ptStart.x, g_ptStart.y, x, y);
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pushToPoints(x, y);
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CRect rcPartial;
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getBoundaryOfPoints(rcPartial, s_cPoints, s_pPoints);
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SIZE size = toolsModel.GetToolSize();
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rcPartial.InflateRect((size.cx + 1) / 2, (size.cy + 1) / 2);
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imageModel.PushImageForUndo(rcPartial);
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OnDrawOverlayOnImage(m_hdc);
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imageModel.NotifyImageChanged();
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OnEndDraw(FALSE);
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return TRUE;
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}
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void OnDrawOverlayOnImage(HDC hdc) override
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{
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for (SIZE_T i = 1; i < s_cPoints; ++i)
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{
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OnDraw(hdc, m_bLeftButton, s_pPoints[i - 1], s_pPoints[i]);
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}
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}
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};
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struct SelectionBaseTool : ToolBase
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{
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BOOL m_bLeftButton = FALSE;
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BOOL m_bCtrlKey = FALSE;
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BOOL m_bShiftKey = FALSE;
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BOOL m_bDrawing = FALSE;
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BOOL m_bNoDrawBack = FALSE;
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HITTEST m_hitSelection = HIT_NONE;
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BOOL isRectSelect() const
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{
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return (toolsModel.GetActiveTool() == TOOL_RECTSEL);
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}
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void OnDrawOverlayOnImage(HDC hdc) override
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{
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if (selectionModel.IsLanded() || !selectionModel.m_bShow)
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return;
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if (!m_bNoDrawBack)
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selectionModel.DrawBackground(hdc, selectionModel.m_rgbBack);
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selectionModel.DrawSelection(hdc, paletteModel.GetBgColor(), toolsModel.IsBackgroundTransparent());
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}
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void OnDrawOverlayOnCanvas(HDC hdc) override
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{
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if (m_bDrawing || selectionModel.m_bShow)
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selectionModel.drawFrameOnCanvas(hdc);
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}
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void OnButtonDown(BOOL bLeftButton, LONG x, LONG y, BOOL bDoubleClick) override
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{
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m_bLeftButton = bLeftButton;
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m_bCtrlKey = (::GetKeyState(VK_CONTROL) < 0);
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m_bShiftKey = (::GetKeyState(VK_SHIFT) < 0);
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m_bDrawing = FALSE;
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m_hitSelection = HIT_NONE;
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POINT pt = { x, y };
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if (!m_bLeftButton) // Show context menu on Right-click
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{
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canvasWindow.ImageToCanvas(pt);
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canvasWindow.ClientToScreen(&pt);
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mainWindow.TrackPopupMenu(pt, 0);
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return;
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}
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POINT ptCanvas = pt;
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canvasWindow.ImageToCanvas(ptCanvas);
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HITTEST hit = selectionModel.hitTest(ptCanvas);
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if (hit != HIT_NONE) // Dragging of selection started?
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{
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if (m_bCtrlKey || m_bShiftKey)
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{
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imageModel.PushImageForUndo();
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toolsModel.OnDrawOverlayOnImage(imageModel.GetDC());
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}
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m_hitSelection = hit;
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selectionModel.m_ptHit = pt;
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selectionModel.TakeOff();
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m_bNoDrawBack |= (m_bCtrlKey || m_bShiftKey);
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imageModel.NotifyImageChanged();
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return;
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}
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selectionModel.Landing();
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m_bDrawing = TRUE;
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imageModel.Clamp(pt);
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if (isRectSelect())
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{
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selectionModel.SetRectFromPoints(g_ptStart, pt);
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}
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else
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{
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s_cPoints = 0;
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pushToPoints(pt.x, pt.y);
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}
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imageModel.NotifyImageChanged();
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}
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BOOL OnMouseMove(BOOL bLeftButton, LONG& x, LONG& y) override
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{
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POINT pt = { x, y };
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if (!m_bLeftButton)
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return TRUE;
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if (m_hitSelection != HIT_NONE) // Now dragging selection?
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{
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if (m_bShiftKey)
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toolsModel.OnDrawOverlayOnImage(imageModel.GetDC());
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selectionModel.Dragging(m_hitSelection, pt);
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imageModel.NotifyImageChanged();
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return TRUE;
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}
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if (isRectSelect() && ::GetKeyState(VK_SHIFT) < 0)
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regularize(g_ptStart.x, g_ptStart.y, pt.x, pt.y);
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imageModel.Clamp(pt);
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if (isRectSelect())
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selectionModel.SetRectFromPoints(g_ptStart, pt);
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else
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pushToPoints(pt.x, pt.y);
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imageModel.NotifyImageChanged();
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return TRUE;
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}
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BOOL OnButtonUp(BOOL bLeftButton, LONG& x, LONG& y) override
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{
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POINT pt = { x, y };
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m_bDrawing = FALSE;
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if (!m_bLeftButton)
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return TRUE;
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if (m_hitSelection != HIT_NONE) // Dragging of selection ended?
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{
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if (m_bShiftKey)
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toolsModel.OnDrawOverlayOnImage(imageModel.GetDC());
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selectionModel.Dragging(m_hitSelection, pt);
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m_hitSelection = HIT_NONE;
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imageModel.NotifyImageChanged();
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return TRUE;
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}
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if (isRectSelect() && ::GetKeyState(VK_SHIFT) < 0)
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regularize(g_ptStart.x, g_ptStart.y, pt.x, pt.y);
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imageModel.Clamp(pt);
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if (isRectSelect())
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{
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selectionModel.SetRectFromPoints(g_ptStart, pt);
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selectionModel.m_bShow = !selectionModel.m_rc.IsRectEmpty();
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}
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else
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{
|
|
if (s_cPoints > 2)
|
|
{
|
|
BuildMaskFromPoints();
|
|
selectionModel.m_bShow = TRUE;
|
|
}
|
|
else
|
|
{
|
|
s_cPoints = 0;
|
|
selectionModel.m_bShow = FALSE;
|
|
}
|
|
}
|
|
|
|
m_bNoDrawBack = FALSE;
|
|
imageModel.NotifyImageChanged();
|
|
return TRUE;
|
|
}
|
|
|
|
void OnEndDraw(BOOL bCancel) override
|
|
{
|
|
if (bCancel)
|
|
selectionModel.HideSelection();
|
|
else
|
|
selectionModel.Landing();
|
|
|
|
m_bDrawing = FALSE;
|
|
m_hitSelection = HIT_NONE;
|
|
ToolBase::OnEndDraw(bCancel);
|
|
}
|
|
|
|
void OnSpecialTweak(BOOL bMinus) override
|
|
{
|
|
selectionModel.StretchSelection(bMinus);
|
|
}
|
|
};
|
|
|
|
// TOOL_FREESEL
|
|
struct FreeSelTool : SelectionBaseTool
|
|
{
|
|
void OnDrawOverlayOnImage(HDC hdc) override
|
|
{
|
|
SelectionBaseTool::OnDrawOverlayOnImage(hdc);
|
|
|
|
if (!selectionModel.m_bShow && m_bDrawing)
|
|
{
|
|
/* Draw the freehand selection inverted/xored */
|
|
Poly(hdc, s_pPoints, (INT)s_cPoints, 0, 0, 2, 0, FALSE, TRUE);
|
|
}
|
|
}
|
|
};
|
|
|
|
// TOOL_RECTSEL
|
|
struct RectSelTool : SelectionBaseTool
|
|
{
|
|
void OnDrawOverlayOnImage(HDC hdc) override
|
|
{
|
|
SelectionBaseTool::OnDrawOverlayOnImage(hdc);
|
|
|
|
if (!selectionModel.m_bShow && m_bDrawing)
|
|
{
|
|
CRect& rc = selectionModel.m_rc;
|
|
if (!rc.IsRectEmpty())
|
|
RectSel(hdc, rc.left, rc.top, rc.right, rc.bottom);
|
|
}
|
|
}
|
|
};
|
|
|
|
// TOOL_RUBBER
|
|
struct RubberTool : SmoothDrawTool
|
|
{
|
|
void OnDraw(HDC hdc, BOOL bLeftButton, POINT pt0, POINT pt1) override
|
|
{
|
|
if (bLeftButton)
|
|
Erase(hdc, pt0.x, pt0.y, pt1.x, pt1.y, m_bg, toolsModel.GetRubberRadius());
|
|
else
|
|
Replace(hdc, pt0.x, pt0.y, pt1.x, pt1.y, m_fg, m_bg, toolsModel.GetRubberRadius());
|
|
}
|
|
|
|
void OnSpecialTweak(BOOL bMinus) override
|
|
{
|
|
toolsModel.MakeRubberThickerOrThinner(bMinus);
|
|
}
|
|
};
|
|
|
|
// TOOL_FILL
|
|
struct FillTool : ToolBase
|
|
{
|
|
void OnButtonDown(BOOL bLeftButton, LONG x, LONG y, BOOL bDoubleClick) override
|
|
{
|
|
imageModel.PushImageForUndo();
|
|
Fill(m_hdc, x, y, bLeftButton ? m_fg : m_bg);
|
|
}
|
|
};
|
|
|
|
// TOOL_COLOR
|
|
struct ColorTool : ToolBase
|
|
{
|
|
void fetchColor(BOOL bLeftButton, LONG x, LONG y)
|
|
{
|
|
COLORREF rgbColor;
|
|
|
|
if (0 <= x && x < imageModel.GetWidth() && 0 <= y && y < imageModel.GetHeight())
|
|
rgbColor = GetPixel(m_hdc, x, y);
|
|
else
|
|
rgbColor = RGB(255, 255, 255); // Outside is white
|
|
|
|
if (bLeftButton)
|
|
paletteModel.SetFgColor(rgbColor);
|
|
else
|
|
paletteModel.SetBgColor(rgbColor);
|
|
}
|
|
|
|
BOOL OnMouseMove(BOOL bLeftButton, LONG& x, LONG& y) override
|
|
{
|
|
fetchColor(bLeftButton, x, y);
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL OnButtonUp(BOOL bLeftButton, LONG& x, LONG& y) override
|
|
{
|
|
fetchColor(bLeftButton, x, y);
|
|
toolsModel.SetActiveTool(toolsModel.GetOldActiveTool());
|
|
return TRUE;
|
|
}
|
|
};
|
|
|
|
// TOOL_ZOOM
|
|
struct ZoomTool : ToolBase
|
|
{
|
|
BOOL m_bZoomed = FALSE;
|
|
|
|
BOOL getNewZoomRect(CRect& rcView, INT newZoom);
|
|
|
|
void OnDrawOverlayOnCanvas(HDC hdc) override
|
|
{
|
|
CRect rcView;
|
|
INT oldZoom = toolsModel.GetZoom();
|
|
if (oldZoom < MAX_ZOOM && getNewZoomRect(rcView, oldZoom * 2))
|
|
DrawXorRect(hdc, &rcView);
|
|
}
|
|
|
|
void OnButtonDown(BOOL bLeftButton, LONG x, LONG y, BOOL bDoubleClick) override
|
|
{
|
|
INT newZoom, oldZoom = toolsModel.GetZoom();
|
|
if (bLeftButton)
|
|
newZoom = (oldZoom < MAX_ZOOM) ? (oldZoom * 2) : MIN_ZOOM;
|
|
else
|
|
newZoom = (oldZoom > MIN_ZOOM) ? (oldZoom / 2) : MAX_ZOOM;
|
|
|
|
m_bZoomed = FALSE;
|
|
|
|
if (oldZoom != newZoom)
|
|
{
|
|
CRect rcView;
|
|
if (getNewZoomRect(rcView, newZoom))
|
|
{
|
|
canvasWindow.zoomTo(newZoom, rcView.left, rcView.top);
|
|
m_bZoomed = TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
BOOL OnButtonUp(BOOL bLeftButton, LONG& x, LONG& y) override
|
|
{
|
|
if (m_bZoomed)
|
|
toolsModel.SetActiveTool(toolsModel.GetOldActiveTool());
|
|
|
|
return TRUE;
|
|
}
|
|
};
|
|
|
|
BOOL ZoomTool::getNewZoomRect(CRect& rcView, INT newZoom)
|
|
{
|
|
CPoint pt;
|
|
::GetCursorPos(&pt);
|
|
canvasWindow.ScreenToClient(&pt);
|
|
|
|
canvasWindow.getNewZoomRect(rcView, newZoom, pt);
|
|
|
|
CRect rc;
|
|
canvasWindow.GetImageRect(rc);
|
|
canvasWindow.ImageToCanvas(rc);
|
|
|
|
return rc.PtInRect(pt);
|
|
}
|
|
|
|
// TOOL_PEN
|
|
struct PenTool : SmoothDrawTool
|
|
{
|
|
void OnDraw(HDC hdc, BOOL bLeftButton, POINT pt0, POINT pt1) override
|
|
{
|
|
COLORREF rgb = bLeftButton ? m_fg : m_bg;
|
|
Line(hdc, pt0.x, pt0.y, pt1.x, pt1.y, rgb, toolsModel.GetPenWidth());
|
|
}
|
|
|
|
void OnSpecialTweak(BOOL bMinus) override
|
|
{
|
|
toolsModel.MakePenThickerOrThinner(bMinus);
|
|
}
|
|
};
|
|
|
|
// TOOL_BRUSH
|
|
struct BrushTool : SmoothDrawTool
|
|
{
|
|
void OnDraw(HDC hdc, BOOL bLeftButton, POINT pt0, POINT pt1) override
|
|
{
|
|
COLORREF rgb = bLeftButton ? m_fg : m_bg;
|
|
Brush(hdc, pt0.x, pt0.y, pt1.x, pt1.y, rgb, toolsModel.GetBrushStyle(),
|
|
toolsModel.GetBrushWidth());
|
|
}
|
|
|
|
void OnSpecialTweak(BOOL bMinus) override
|
|
{
|
|
toolsModel.MakeBrushThickerOrThinner(bMinus);
|
|
}
|
|
};
|
|
|
|
// TOOL_AIRBRUSH
|
|
struct AirBrushTool : SmoothDrawTool
|
|
{
|
|
DWORD m_dwTick = 0;
|
|
|
|
void OnButtonDown(BOOL bLeftButton, LONG x, LONG y, BOOL bDoubleClick) override
|
|
{
|
|
m_dwTick = GetTickCount();
|
|
SmoothDrawTool::OnButtonDown(bLeftButton, x, y, bDoubleClick);
|
|
}
|
|
|
|
void OnDrawOverlayOnImage(HDC hdc) override
|
|
{
|
|
srand(m_dwTick);
|
|
SmoothDrawTool::OnDrawOverlayOnImage(hdc);
|
|
}
|
|
|
|
void OnDraw(HDC hdc, BOOL bLeftButton, POINT pt0, POINT pt1) override
|
|
{
|
|
COLORREF rgb = bLeftButton ? m_fg : m_bg;
|
|
Airbrush(hdc, pt1.x, pt1.y, rgb, toolsModel.GetAirBrushRadius());
|
|
}
|
|
|
|
void OnSpecialTweak(BOOL bMinus) override
|
|
{
|
|
toolsModel.MakeAirBrushThickerOrThinner(bMinus);
|
|
}
|
|
};
|
|
|
|
// TOOL_TEXT
|
|
struct TextTool : ToolBase
|
|
{
|
|
void OnDrawOverlayOnImage(HDC hdc) override
|
|
{
|
|
if (canvasWindow.m_drawing)
|
|
{
|
|
CRect& rc = selectionModel.m_rc;
|
|
if (!rc.IsRectEmpty())
|
|
RectSel(hdc, rc.left, rc.top, rc.right, rc.bottom);
|
|
}
|
|
}
|
|
|
|
void UpdatePoint(LONG x, LONG y)
|
|
{
|
|
POINT pt = { x, y };
|
|
imageModel.Clamp(pt);
|
|
selectionModel.SetRectFromPoints(g_ptStart, pt);
|
|
imageModel.NotifyImageChanged();
|
|
}
|
|
|
|
void OnButtonDown(BOOL bLeftButton, LONG x, LONG y, BOOL bDoubleClick) override
|
|
{
|
|
if (!textEditWindow.IsWindow())
|
|
textEditWindow.Create(canvasWindow);
|
|
|
|
UpdatePoint(x, y);
|
|
}
|
|
|
|
BOOL OnMouseMove(BOOL bLeftButton, LONG& x, LONG& y) override
|
|
{
|
|
UpdatePoint(x, y);
|
|
return TRUE;
|
|
}
|
|
|
|
void draw(HDC hdc)
|
|
{
|
|
CStringW szText;
|
|
textEditWindow.GetWindowText(szText);
|
|
|
|
CRect rc;
|
|
textEditWindow.InvalidateEditRect();
|
|
textEditWindow.GetEditRect(&rc);
|
|
rc.InflateRect(-GRIP_SIZE / 2, -GRIP_SIZE / 2);
|
|
|
|
// Draw the text
|
|
INT style = (toolsModel.IsBackgroundTransparent() ? 0 : 1);
|
|
Text(hdc, rc.left, rc.top, rc.right, rc.bottom, m_fg, m_bg, szText,
|
|
textEditWindow.GetFont(), style);
|
|
}
|
|
|
|
void quit()
|
|
{
|
|
if (textEditWindow.IsWindow())
|
|
textEditWindow.ShowWindow(SW_HIDE);
|
|
selectionModel.HideSelection();
|
|
}
|
|
|
|
BOOL OnButtonUp(BOOL bLeftButton, LONG& x, LONG& y) override
|
|
{
|
|
POINT pt = { x, y };
|
|
imageModel.Clamp(pt);
|
|
selectionModel.SetRectFromPoints(g_ptStart, pt);
|
|
|
|
BOOL bTextBoxShown = ::IsWindowVisible(textEditWindow);
|
|
if (bTextBoxShown)
|
|
{
|
|
if (textEditWindow.GetWindowTextLength() > 0)
|
|
{
|
|
imageModel.PushImageForUndo();
|
|
draw(m_hdc);
|
|
}
|
|
if (selectionModel.m_rc.IsRectEmpty())
|
|
{
|
|
quit();
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
if (registrySettings.ShowTextTool)
|
|
{
|
|
if (!fontsDialog.IsWindow())
|
|
fontsDialog.Create(mainWindow);
|
|
|
|
fontsDialog.ShowWindow(SW_SHOWNOACTIVATE);
|
|
}
|
|
|
|
CRect rc = selectionModel.m_rc;
|
|
|
|
// Enlarge if tool small
|
|
INT cxMin = CX_MINTEXTEDIT, cyMin = CY_MINTEXTEDIT;
|
|
if (selectionModel.m_rc.IsRectEmpty())
|
|
{
|
|
rc.SetRect(x, y, x + cxMin, y + cyMin);
|
|
}
|
|
else
|
|
{
|
|
if (rc.right - rc.left < cxMin)
|
|
rc.right = rc.left + cxMin;
|
|
if (rc.bottom - rc.top < cyMin)
|
|
rc.bottom = rc.top + cyMin;
|
|
}
|
|
|
|
if (!textEditWindow.IsWindow())
|
|
textEditWindow.Create(canvasWindow);
|
|
|
|
textEditWindow.SetWindowText(NULL);
|
|
textEditWindow.ValidateEditRect(&rc);
|
|
textEditWindow.ShowWindow(SW_SHOWNOACTIVATE);
|
|
textEditWindow.SetFocus();
|
|
return TRUE;
|
|
}
|
|
|
|
void OnEndDraw(BOOL bCancel) override
|
|
{
|
|
if (!bCancel)
|
|
{
|
|
if (::IsWindowVisible(textEditWindow) &&
|
|
textEditWindow.GetWindowTextLength() > 0)
|
|
{
|
|
imageModel.PushImageForUndo();
|
|
draw(m_hdc);
|
|
}
|
|
}
|
|
quit();
|
|
ToolBase::OnEndDraw(bCancel);
|
|
}
|
|
};
|
|
|
|
// TOOL_LINE
|
|
struct LineTool : TwoPointDrawTool
|
|
{
|
|
void OnDrawOverlayOnImage(HDC hdc) override
|
|
{
|
|
if (!m_bDrawing)
|
|
return;
|
|
if (GetAsyncKeyState(VK_SHIFT) < 0)
|
|
roundTo8Directions(g_ptStart.x, g_ptStart.y, g_ptEnd.x, g_ptEnd.y);
|
|
COLORREF rgb = m_bLeftButton ? m_fg : m_bg;
|
|
Line(hdc, g_ptStart.x, g_ptStart.y, g_ptEnd.x, g_ptEnd.y, rgb, toolsModel.GetLineWidth());
|
|
}
|
|
};
|
|
|
|
// TOOL_BEZIER
|
|
struct BezierTool : ToolBase
|
|
{
|
|
BOOL m_bLeftButton = FALSE;
|
|
|
|
void OnDrawOverlayOnImage(HDC hdc)
|
|
{
|
|
COLORREF rgb = (m_bLeftButton ? m_fg : m_bg);
|
|
switch (s_cPoints)
|
|
{
|
|
case 2:
|
|
Line(hdc, s_pPoints[0].x, s_pPoints[0].y, s_pPoints[1].x, s_pPoints[1].y, rgb,
|
|
toolsModel.GetLineWidth());
|
|
break;
|
|
case 3:
|
|
Bezier(hdc, s_pPoints[0], s_pPoints[2], s_pPoints[2], s_pPoints[1], rgb, toolsModel.GetLineWidth());
|
|
break;
|
|
case 4:
|
|
Bezier(hdc, s_pPoints[0], s_pPoints[2], s_pPoints[3], s_pPoints[1], rgb, toolsModel.GetLineWidth());
|
|
break;
|
|
}
|
|
}
|
|
|
|
void OnButtonDown(BOOL bLeftButton, LONG x, LONG y, BOOL bDoubleClick) override
|
|
{
|
|
m_bLeftButton = bLeftButton;
|
|
|
|
if (s_cPoints == 0)
|
|
{
|
|
pushToPoints(x, y);
|
|
pushToPoints(x, y);
|
|
}
|
|
else
|
|
{
|
|
s_pPoints[s_cPoints - 1] = { x, y };
|
|
}
|
|
|
|
imageModel.NotifyImageChanged();
|
|
}
|
|
|
|
BOOL OnMouseMove(BOOL bLeftButton, LONG& x, LONG& y) override
|
|
{
|
|
if (s_cPoints > 0)
|
|
s_pPoints[s_cPoints - 1] = { x, y };
|
|
imageModel.NotifyImageChanged();
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL OnButtonUp(BOOL bLeftButton, LONG& x, LONG& y) override
|
|
{
|
|
if (s_cPoints >= 4)
|
|
{
|
|
OnEndDraw(FALSE);
|
|
return TRUE;
|
|
}
|
|
pushToPoints(x, y);
|
|
imageModel.NotifyImageChanged();
|
|
return TRUE;
|
|
}
|
|
|
|
void OnEndDraw(BOOL bCancel) override
|
|
{
|
|
if (!bCancel && s_cPoints > 1)
|
|
{
|
|
// FIXME: I couldn't calculate boundary rectangle from Bezier curve
|
|
imageModel.PushImageForUndo();
|
|
OnDrawOverlayOnImage(m_hdc);
|
|
}
|
|
ToolBase::OnEndDraw(bCancel);
|
|
}
|
|
|
|
void OnSpecialTweak(BOOL bMinus) override
|
|
{
|
|
toolsModel.MakeLineThickerOrThinner(bMinus);
|
|
}
|
|
};
|
|
|
|
// TOOL_RECT
|
|
struct RectTool : TwoPointDrawTool
|
|
{
|
|
void OnDrawOverlayOnImage(HDC hdc) override
|
|
{
|
|
if (!m_bDrawing)
|
|
return;
|
|
if (GetAsyncKeyState(VK_SHIFT) < 0)
|
|
regularize(g_ptStart.x, g_ptStart.y, g_ptEnd.x, g_ptEnd.y);
|
|
if (m_bLeftButton)
|
|
Rect(hdc, g_ptStart.x, g_ptStart.y, g_ptEnd.x, g_ptEnd.y, m_fg, m_bg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle());
|
|
else
|
|
Rect(hdc, g_ptStart.x, g_ptStart.y, g_ptEnd.x, g_ptEnd.y, m_bg, m_fg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle());
|
|
}
|
|
};
|
|
|
|
// TOOL_SHAPE
|
|
struct ShapeTool : ToolBase
|
|
{
|
|
BOOL m_bLeftButton = FALSE;
|
|
BOOL m_bClosed = FALSE;
|
|
|
|
void OnDrawOverlayOnImage(HDC hdc)
|
|
{
|
|
if (s_cPoints <= 0)
|
|
return;
|
|
|
|
if (m_bLeftButton)
|
|
Poly(hdc, s_pPoints, (INT)s_cPoints, m_fg, m_bg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle(), m_bClosed, FALSE);
|
|
else
|
|
Poly(hdc, s_pPoints, (INT)s_cPoints, m_bg, m_fg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle(), m_bClosed, FALSE);
|
|
}
|
|
|
|
void OnButtonDown(BOOL bLeftButton, LONG x, LONG y, BOOL bDoubleClick) override
|
|
{
|
|
m_bLeftButton = bLeftButton;
|
|
m_bClosed = FALSE;
|
|
|
|
if ((s_cPoints > 0) && (GetAsyncKeyState(VK_SHIFT) < 0))
|
|
roundTo8Directions(s_pPoints[s_cPoints - 1].x, s_pPoints[s_cPoints - 1].y, x, y);
|
|
|
|
pushToPoints(x, y);
|
|
|
|
if (s_cPoints > 1 && bDoubleClick)
|
|
{
|
|
OnEndDraw(FALSE);
|
|
return;
|
|
}
|
|
|
|
if (s_cPoints == 1)
|
|
pushToPoints(x, y); // We have to draw the first point
|
|
|
|
imageModel.NotifyImageChanged();
|
|
}
|
|
|
|
BOOL OnMouseMove(BOOL bLeftButton, LONG& x, LONG& y) override
|
|
{
|
|
if (s_cPoints > 1)
|
|
{
|
|
if (GetAsyncKeyState(VK_SHIFT) < 0)
|
|
roundTo8Directions(s_pPoints[s_cPoints - 2].x, s_pPoints[s_cPoints - 2].y, x, y);
|
|
|
|
s_pPoints[s_cPoints - 1] = { x, y };
|
|
}
|
|
|
|
imageModel.NotifyImageChanged();
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL OnButtonUp(BOOL bLeftButton, LONG& x, LONG& y) override
|
|
{
|
|
if ((s_cPoints > 1) && (GetAsyncKeyState(VK_SHIFT) < 0))
|
|
roundTo8Directions(s_pPoints[s_cPoints - 2].x, s_pPoints[s_cPoints - 2].y, x, y);
|
|
|
|
m_bClosed = FALSE;
|
|
if (nearlyEqualPoints(x, y, s_pPoints[0].x, s_pPoints[0].y))
|
|
{
|
|
OnEndDraw(FALSE);
|
|
return TRUE;
|
|
}
|
|
|
|
pushToPoints(x, y);
|
|
imageModel.NotifyImageChanged();
|
|
return TRUE;
|
|
}
|
|
|
|
void OnEndDraw(BOOL bCancel) override
|
|
{
|
|
if (!bCancel && s_cPoints > 1)
|
|
{
|
|
CRect rcPartial;
|
|
getBoundaryOfPoints(rcPartial, s_cPoints, s_pPoints);
|
|
|
|
SIZE size = toolsModel.GetToolSize();
|
|
rcPartial.InflateRect((size.cx + 1) / 2, (size.cy + 1) / 2);
|
|
|
|
imageModel.PushImageForUndo(rcPartial);
|
|
|
|
m_bClosed = TRUE;
|
|
OnDrawOverlayOnImage(m_hdc);
|
|
}
|
|
m_bClosed = FALSE;
|
|
ToolBase::OnEndDraw(bCancel);
|
|
}
|
|
|
|
void OnSpecialTweak(BOOL bMinus) override
|
|
{
|
|
toolsModel.MakeLineThickerOrThinner(bMinus);
|
|
}
|
|
};
|
|
|
|
// TOOL_ELLIPSE
|
|
struct EllipseTool : TwoPointDrawTool
|
|
{
|
|
void OnDrawOverlayOnImage(HDC hdc) override
|
|
{
|
|
if (!m_bDrawing)
|
|
return;
|
|
if (GetAsyncKeyState(VK_SHIFT) < 0)
|
|
regularize(g_ptStart.x, g_ptStart.y, g_ptEnd.x, g_ptEnd.y);
|
|
if (m_bLeftButton)
|
|
Ellp(hdc, g_ptStart.x, g_ptStart.y, g_ptEnd.x, g_ptEnd.y, m_fg, m_bg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle());
|
|
else
|
|
Ellp(hdc, g_ptStart.x, g_ptStart.y, g_ptEnd.x, g_ptEnd.y, m_bg, m_fg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle());
|
|
}
|
|
};
|
|
|
|
// TOOL_RRECT
|
|
struct RRectTool : TwoPointDrawTool
|
|
{
|
|
void OnDrawOverlayOnImage(HDC hdc) override
|
|
{
|
|
if (!m_bDrawing)
|
|
return;
|
|
if (GetAsyncKeyState(VK_SHIFT) < 0)
|
|
regularize(g_ptStart.x, g_ptStart.y, g_ptEnd.x, g_ptEnd.y);
|
|
if (m_bLeftButton)
|
|
RRect(hdc, g_ptStart.x, g_ptStart.y, g_ptEnd.x, g_ptEnd.y, m_fg, m_bg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle());
|
|
else
|
|
RRect(hdc, g_ptStart.x, g_ptStart.y, g_ptEnd.x, g_ptEnd.y, m_bg, m_fg, toolsModel.GetLineWidth(), toolsModel.GetShapeStyle());
|
|
}
|
|
};
|
|
|
|
/*static*/ ToolBase*
|
|
ToolBase::createToolObject(TOOLTYPE type)
|
|
{
|
|
switch (type)
|
|
{
|
|
case TOOL_FREESEL: return new FreeSelTool();
|
|
case TOOL_RECTSEL: return new RectSelTool();
|
|
case TOOL_RUBBER: return new RubberTool();
|
|
case TOOL_FILL: return new FillTool();
|
|
case TOOL_COLOR: return new ColorTool();
|
|
case TOOL_ZOOM: return new ZoomTool();
|
|
case TOOL_PEN: return new PenTool();
|
|
case TOOL_BRUSH: return new BrushTool();
|
|
case TOOL_AIRBRUSH: return new AirBrushTool();
|
|
case TOOL_TEXT: return new TextTool();
|
|
case TOOL_LINE: return new LineTool();
|
|
case TOOL_BEZIER: return new BezierTool();
|
|
case TOOL_RECT: return new RectTool();
|
|
case TOOL_SHAPE: return new ShapeTool();
|
|
case TOOL_ELLIPSE: return new EllipseTool();
|
|
case TOOL_RRECT: return new RRectTool();
|
|
}
|
|
UNREACHABLE;
|
|
return NULL;
|
|
}
|
|
|
|
void ToolsModel::OnButtonDown(BOOL bLeftButton, LONG x, LONG y, BOOL bDoubleClick)
|
|
{
|
|
m_pToolObject->beginEvent();
|
|
g_ptEnd = g_ptStart = { x, y };
|
|
m_pToolObject->OnButtonDown(bLeftButton, x, y, bDoubleClick);
|
|
m_pToolObject->endEvent();
|
|
}
|
|
|
|
void ToolsModel::OnMouseMove(BOOL bLeftButton, LONG x, LONG y)
|
|
{
|
|
m_pToolObject->beginEvent();
|
|
if (m_pToolObject->OnMouseMove(bLeftButton, x, y))
|
|
g_ptEnd = { x, y };
|
|
|
|
m_pToolObject->endEvent();
|
|
}
|
|
|
|
void ToolsModel::OnButtonUp(BOOL bLeftButton, LONG x, LONG y)
|
|
{
|
|
m_pToolObject->beginEvent();
|
|
if (m_pToolObject->OnButtonUp(bLeftButton, x, y))
|
|
g_ptEnd = { x, y };
|
|
|
|
m_pToolObject->endEvent();
|
|
}
|
|
|
|
void ToolsModel::OnEndDraw(BOOL bCancel)
|
|
{
|
|
ATLTRACE("ToolsModel::OnEndDraw(%d)\n", bCancel);
|
|
m_pToolObject->beginEvent();
|
|
m_pToolObject->OnEndDraw(bCancel);
|
|
m_pToolObject->endEvent();
|
|
}
|
|
|
|
void ToolsModel::OnDrawOverlayOnImage(HDC hdc)
|
|
{
|
|
m_pToolObject->OnDrawOverlayOnImage(hdc);
|
|
}
|
|
|
|
void ToolsModel::OnDrawOverlayOnCanvas(HDC hdc)
|
|
{
|
|
m_pToolObject->OnDrawOverlayOnCanvas(hdc);
|
|
}
|
|
|
|
void ToolsModel::SpecialTweak(BOOL bMinus)
|
|
{
|
|
m_pToolObject->OnSpecialTweak(bMinus);
|
|
}
|
|
|
|
void ToolsModel::DrawWithMouseTool(POINT pt, WPARAM wParam)
|
|
{
|
|
LONG xRel = pt.x - g_ptStart.x, yRel = pt.y - g_ptStart.y;
|
|
|
|
switch (m_activeTool)
|
|
{
|
|
// freesel, rectsel and text tools always show numbers limited to fit into image area
|
|
case TOOL_FREESEL:
|
|
case TOOL_RECTSEL:
|
|
case TOOL_TEXT:
|
|
if (xRel < 0)
|
|
xRel = (pt.x < 0) ? -g_ptStart.x : xRel;
|
|
else if (pt.x > imageModel.GetWidth())
|
|
xRel = imageModel.GetWidth() - g_ptStart.x;
|
|
if (yRel < 0)
|
|
yRel = (pt.y < 0) ? -g_ptStart.y : yRel;
|
|
else if (pt.y > imageModel.GetHeight())
|
|
yRel = imageModel.GetHeight() - g_ptStart.y;
|
|
break;
|
|
|
|
// while drawing, update cursor coordinates only for tools 3, 7, 8, 9, 14
|
|
case TOOL_RUBBER:
|
|
case TOOL_PEN:
|
|
case TOOL_BRUSH:
|
|
case TOOL_AIRBRUSH:
|
|
case TOOL_SHAPE:
|
|
{
|
|
CStringW strCoord;
|
|
strCoord.Format(L"%ld, %ld", pt.x, pt.y);
|
|
::SendMessageW(g_hStatusBar, SB_SETTEXT, 1, (LPARAM)(LPCWSTR)strCoord);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
// rectsel and shape tools always show non-negative numbers when drawing
|
|
if (m_activeTool == TOOL_RECTSEL || m_activeTool == TOOL_SHAPE)
|
|
{
|
|
xRel = labs(xRel);
|
|
yRel = labs(yRel);
|
|
}
|
|
|
|
if (wParam & MK_LBUTTON)
|
|
{
|
|
OnMouseMove(TRUE, pt.x, pt.y);
|
|
canvasWindow.Invalidate(FALSE);
|
|
if ((m_activeTool >= TOOL_TEXT) || IsSelection())
|
|
{
|
|
CStringW strSize;
|
|
if ((m_activeTool >= TOOL_LINE) && (GetAsyncKeyState(VK_SHIFT) < 0))
|
|
yRel = xRel;
|
|
strSize.Format(L"%ld x %ld", xRel, yRel);
|
|
::SendMessageW(g_hStatusBar, SB_SETTEXT, 2, (LPARAM)(LPCWSTR)strSize);
|
|
}
|
|
}
|
|
|
|
if (wParam & MK_RBUTTON)
|
|
{
|
|
OnMouseMove(FALSE, pt.x, pt.y);
|
|
canvasWindow.Invalidate(FALSE);
|
|
if (m_activeTool >= TOOL_TEXT)
|
|
{
|
|
CStringW strSize;
|
|
if ((m_activeTool >= TOOL_LINE) && (GetAsyncKeyState(VK_SHIFT) < 0))
|
|
yRel = xRel;
|
|
strSize.Format(L"%ld x %ld", xRel, yRel);
|
|
::SendMessageW(g_hStatusBar, SB_SETTEXT, 2, (LPARAM)(LPCWSTR)strSize);
|
|
}
|
|
}
|
|
}
|