mirror of
https://github.com/reactos/reactos.git
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296 lines
10 KiB
C++
296 lines
10 KiB
C++
/*
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* PROJECT: PAINT for ReactOS
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* LICENSE: LGPL
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* FILE: base/applications/mspaint/drawing.cpp
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* PURPOSE: The drawing functions used by the tools
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* PROGRAMMERS: Benedikt Freisen
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*/
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/* INCLUDES *********************************************************/
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#include "precomp.h"
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/* FUNCTIONS ********************************************************/
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void
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Line(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF color, int thickness)
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{
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HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, thickness, color));
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MoveToEx(hdc, x1, y1, NULL);
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LineTo(hdc, x2, y2);
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DeleteObject(SelectObject(hdc, oldPen));
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}
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void
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Rect(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF fg, COLORREF bg, int thickness, int style)
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{
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HBRUSH oldBrush;
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LOGBRUSH logbrush;
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HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg));
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logbrush.lbStyle = (style == 0) ? BS_HOLLOW : BS_SOLID;
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logbrush.lbColor = (style == 2) ? fg : bg;
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logbrush.lbHatch = 0;
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oldBrush = (HBRUSH) SelectObject(hdc, CreateBrushIndirect(&logbrush));
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Rectangle(hdc, x1, y1, x2, y2);
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DeleteObject(SelectObject(hdc, oldBrush));
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DeleteObject(SelectObject(hdc, oldPen));
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}
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void
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Ellp(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF fg, COLORREF bg, int thickness, int style)
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{
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HBRUSH oldBrush;
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LOGBRUSH logbrush;
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HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg));
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logbrush.lbStyle = (style == 0) ? BS_HOLLOW : BS_SOLID;
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logbrush.lbColor = (style == 2) ? fg : bg;
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logbrush.lbHatch = 0;
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oldBrush = (HBRUSH) SelectObject(hdc, CreateBrushIndirect(&logbrush));
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Ellipse(hdc, x1, y1, x2, y2);
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DeleteObject(SelectObject(hdc, oldBrush));
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DeleteObject(SelectObject(hdc, oldPen));
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}
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void
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RRect(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF fg, COLORREF bg, int thickness, int style)
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{
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LOGBRUSH logbrush;
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HBRUSH oldBrush;
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HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg));
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logbrush.lbStyle = (style == 0) ? BS_HOLLOW : BS_SOLID;
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logbrush.lbColor = (style == 2) ? fg : bg;
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logbrush.lbHatch = 0;
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oldBrush = (HBRUSH) SelectObject(hdc, CreateBrushIndirect(&logbrush));
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RoundRect(hdc, x1, y1, x2, y2, 16, 16);
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DeleteObject(SelectObject(hdc, oldBrush));
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DeleteObject(SelectObject(hdc, oldPen));
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}
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void
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Poly(HDC hdc, POINT * lpPoints, int nCount, COLORREF fg, COLORREF bg, int thickness, int style, BOOL closed, BOOL inverted)
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{
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LOGBRUSH logbrush;
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HBRUSH oldBrush;
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HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg));
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UINT oldRop = GetROP2(hdc);
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if (inverted)
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SetROP2(hdc, R2_NOTXORPEN);
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logbrush.lbStyle = (style == 0) ? BS_HOLLOW : BS_SOLID;
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logbrush.lbColor = (style == 2) ? fg : bg;
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logbrush.lbHatch = 0;
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oldBrush = (HBRUSH) SelectObject(hdc, CreateBrushIndirect(&logbrush));
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if (closed)
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Polygon(hdc, lpPoints, nCount);
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else
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Polyline(hdc, lpPoints, nCount);
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DeleteObject(SelectObject(hdc, oldBrush));
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DeleteObject(SelectObject(hdc, oldPen));
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SetROP2(hdc, oldRop);
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}
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void
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Bezier(HDC hdc, POINT p1, POINT p2, POINT p3, POINT p4, COLORREF color, int thickness)
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{
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HPEN oldPen;
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POINT fourPoints[4];
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fourPoints[0] = p1;
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fourPoints[1] = p2;
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fourPoints[2] = p3;
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fourPoints[3] = p4;
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oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, thickness, color));
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PolyBezier(hdc, fourPoints, 4);
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DeleteObject(SelectObject(hdc, oldPen));
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}
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void
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Fill(HDC hdc, LONG x, LONG y, COLORREF color)
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{
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HBRUSH oldBrush = (HBRUSH) SelectObject(hdc, CreateSolidBrush(color));
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ExtFloodFill(hdc, x, y, GetPixel(hdc, x, y), FLOODFILLSURFACE);
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DeleteObject(SelectObject(hdc, oldBrush));
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}
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void
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Erase(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF color, LONG radius)
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{
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LONG a, b;
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HPEN oldPen;
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HBRUSH oldBrush = (HBRUSH) SelectObject(hdc, CreateSolidBrush(color));
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b = max(1, max(abs(x2 - x1), abs(y2 - y1)));
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oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, 1, color));
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for(a = 0; a <= b; a++)
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Rectangle(hdc, (x1 * (b - a) + x2 * a) / b - radius + 1,
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(y1 * (b - a) + y2 * a) / b - radius + 1, (x1 * (b - a) + x2 * a) / b + radius + 1,
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(y1 * (b - a) + y2 * a) / b + radius + 1);
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DeleteObject(SelectObject(hdc, oldBrush));
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DeleteObject(SelectObject(hdc, oldPen));
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}
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void
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Replace(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF fg, COLORREF bg, LONG radius)
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{
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LONG a, b, x, y;
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b = max(1, max(abs(x2 - x1), abs(y2 - y1)));
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for(a = 0; a <= b; a++)
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for(y = (y1 * (b - a) + y2 * a) / b - radius + 1;
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y < (y1 * (b - a) + y2 * a) / b + radius + 1; y++)
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for(x = (x1 * (b - a) + x2 * a) / b - radius + 1;
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x < (x1 * (b - a) + x2 * a) / b + radius + 1; x++)
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if (GetPixel(hdc, x, y) == fg)
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SetPixel(hdc, x, y, bg);
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}
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void
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Airbrush(HDC hdc, LONG x, LONG y, COLORREF color, LONG r)
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{
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LONG a, b;
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for(b = -r; b <= r; b++)
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for(a = -r; a <= r; a++)
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if ((a * a + b * b <= r * r) && (rand() % 4 == 0))
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SetPixel(hdc, x + a, y + b, color);
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}
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void
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Brush(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF color, LONG style)
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{
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HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, 1, color));
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HBRUSH oldBrush = (HBRUSH) SelectObject(hdc, CreateSolidBrush(color));
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LONG a, b;
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b = max(1, max(abs(x2 - x1), abs(y2 - y1)));
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switch (style)
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{
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case 0:
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for(a = 0; a <= b; a++)
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Ellipse(hdc, (x1 * (b - a) + x2 * a) / b - 3, (y1 * (b - a) + y2 * a) / b - 3,
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(x1 * (b - a) + x2 * a) / b + 4, (y1 * (b - a) + y2 * a) / b + 4);
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break;
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case 1:
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for(a = 0; a <= b; a++)
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Ellipse(hdc, (x1 * (b - a) + x2 * a) / b - 1, (y1 * (b - a) + y2 * a) / b - 1,
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(x1 * (b - a) + x2 * a) / b + 3, (y1 * (b - a) + y2 * a) / b + 3);
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break;
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case 2:
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MoveToEx(hdc, x1, y1, NULL);
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LineTo(hdc, x2, y2);
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SetPixel(hdc, x2, y2, color);
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break;
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case 3:
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for(a = 0; a <= b; a++)
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Rectangle(hdc, (x1 * (b - a) + x2 * a) / b - 3, (y1 * (b - a) + y2 * a) / b - 3,
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(x1 * (b - a) + x2 * a) / b + 5, (y1 * (b - a) + y2 * a) / b + 5);
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break;
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case 4:
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for(a = 0; a <= b; a++)
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Rectangle(hdc, (x1 * (b - a) + x2 * a) / b - 2, (y1 * (b - a) + y2 * a) / b - 2,
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(x1 * (b - a) + x2 * a) / b + 3, (y1 * (b - a) + y2 * a) / b + 3);
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break;
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case 5:
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for(a = 0; a <= b; a++)
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Rectangle(hdc, (x1 * (b - a) + x2 * a) / b - 1, (y1 * (b - a) + y2 * a) / b - 1,
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(x1 * (b - a) + x2 * a) / b + 1, (y1 * (b - a) + y2 * a) / b + 1);
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break;
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case 6:
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case 7:
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case 8:
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case 9:
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case 10:
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case 11:
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{
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POINT offsTop[] = {{4, -3}, {2, -2}, {0, 0},
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{-3, -3}, {-2, -2}, {-1, 0}};
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POINT offsBtm[] = {{-3, 4}, {-2, 2}, {-1, 1},
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{4, 4}, {2, 2}, {0, 1}};
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LONG idx = style - 6;
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POINT pts[4];
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pts[0].x = x1 + offsTop[idx].x;
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pts[0].y = y1 + offsTop[idx].y;
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pts[1].x = x1 + offsBtm[idx].x;
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pts[1].y = y1 + offsBtm[idx].y;
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pts[2].x = x2 + offsBtm[idx].x;
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pts[2].y = y2 + offsBtm[idx].y;
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pts[3].x = x2 + offsTop[idx].x;
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pts[3].y = y2 + offsTop[idx].y;
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Polygon(hdc, pts, 4);
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break;
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}
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}
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DeleteObject(SelectObject(hdc, oldBrush));
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DeleteObject(SelectObject(hdc, oldPen));
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}
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void
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RectSel(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2)
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{
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HBRUSH oldBrush;
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LOGBRUSH logbrush;
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HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_DOT, 1, 0x00000000));
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UINT oldRop = GetROP2(hdc);
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SetROP2(hdc, R2_NOTXORPEN);
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logbrush.lbStyle = BS_HOLLOW;
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logbrush.lbColor = 0;
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logbrush.lbHatch = 0;
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oldBrush = (HBRUSH) SelectObject(hdc, CreateBrushIndirect(&logbrush));
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Rectangle(hdc, x1, y1, x2, y2);
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DeleteObject(SelectObject(hdc, oldBrush));
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DeleteObject(SelectObject(hdc, oldPen));
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SetROP2(hdc, oldRop);
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}
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void
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SelectionFrame(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, DWORD system_selection_color)
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{
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HBRUSH oldBrush;
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LOGBRUSH logbrush;
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HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_DOT, 1, system_selection_color));
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logbrush.lbStyle = BS_HOLLOW;
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logbrush.lbColor = 0;
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logbrush.lbHatch = 0;
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oldBrush = (HBRUSH) SelectObject(hdc, CreateBrushIndirect(&logbrush));
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Rectangle(hdc, x1, y1, x2, y2); /* SEL BOX FRAME */
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DeleteObject(SelectObject(hdc, oldBrush));
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DeleteObject(SelectObject(hdc, oldPen));
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oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, 1, system_selection_color));
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oldBrush = (HBRUSH) SelectObject(hdc, CreateSolidBrush(system_selection_color));
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Rectangle(hdc, x1 - 1, y1 - 1, x1 + 2, y1 + 2);
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Rectangle(hdc, x2 - 2, y1 - 1, x2 + 2, y1 + 2);
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Rectangle(hdc, x1 - 1, y2 - 2, x1 + 2, y2 + 1);
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Rectangle(hdc, x2 - 2, y2 - 2, x2 + 2, y2 + 1);
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Rectangle(hdc, (x1 + x2) / 2 - 1, y1 - 1, (x1 + x2) / 2 + 2, y1 + 2);
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Rectangle(hdc, (x1 + x2) / 2 - 1, y2 - 2, (x1 + x2) / 2 + 2, y2 + 1);
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Rectangle(hdc, x1 - 1, (y1 + y2) / 2 - 1, x1 + 2, (y1 + y2) / 2 + 2);
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Rectangle(hdc, x2 - 2, (y1 + y2) / 2 - 1, x2 + 1, (y1 + y2) / 2 + 2);
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DeleteObject(SelectObject(hdc, oldBrush));
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DeleteObject(SelectObject(hdc, oldPen));
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}
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void
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Text(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF fg, COLORREF bg, LPCTSTR lpchText, HFONT font, LONG style)
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{
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HFONT oldFont;
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RECT rect = {x1, y1, x2, y2};
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COLORREF oldColor;
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COLORREF oldBkColor;
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int oldBkMode;
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oldFont = (HFONT) SelectObject(hdc, font);
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oldColor = SetTextColor(hdc, fg);
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oldBkColor = SetBkColor(hdc, bg);
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oldBkMode = SetBkMode(hdc, TRANSPARENT);
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if (style == 0)
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Rect(hdc, x1, y1, x2, y2, bg, bg, 1, 2);
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DrawText(hdc, lpchText, -1, &rect, DT_EDITCONTROL);
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SelectObject(hdc, oldFont);
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SetTextColor(hdc, oldColor);
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SetBkColor(hdc, oldBkColor);
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SetBkMode(hdc, oldBkMode);
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}
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