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-/*
-* astyle --force-indent=tab=4 --brackets=linux --indent-switches
-* --pad=oper --one-line=keep-blocks --unpad=paren
-*
-* Miranda IM: the free IM client for Microsoft* Windows*
-*
-* Copyright 2000-2010 Miranda ICQ/IM project,
-* all portions of this codebase are copyrighted to the people
-* listed in contributors.txt.
-*
-* This program is free software; you can redistribute it and/or
-* modify it under the terms of the GNU General Public License
-* as published by the Free Software Foundation; either version 2
-* of the License, or (at your option) any later version.
-*
-* This program is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-* GNU General Public License for more details.
-*
-* you should have received a copy of the GNU General Public License
-* along with this program; if not, write to the Free Software
-* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-*
-* part of clist_ng plugin for Miranda.
-*
-* (C) 2005-2010 by silvercircle _at_ gmail _dot_ com and contributors
-*
-* $Id: gfx.h 137 2010-10-16 21:03:23Z silvercircle $
-*
-* low level painting functions - manage DCs, render skin image glyphs,
-* text and backbuffer drawing.
-*
-* provide wrappers for AGG render pipelines
-*
-*/
-
-#ifndef __GFX_H_
-#define __GFX_H_
-
-#define M_PI 3.14159265358979323846
-
-BYTE __forceinline percent_to_byte(UINT32 percent)
-{
- return(BYTE) ((FLOAT) (((FLOAT) percent) / 100) * 255);
-}
-
-class AGGBaseContext
-{
-public:
- /**
- * CTOR - construct AGGBaseContext and attach it to a bitmap
- * @param hdc device context (not really needed)
- * @param hbm bitmap handle
- * @return
- */
- AGGBaseContext(HDC hdc, HBITMAP hbm)
- {
- m_hdc= hdc;
- attach(hbm);
- }
-
- /**
- * construct AGGBaseContext and attach it to a in-memory bitmap used
- * by a BufferedPaint operation
- * @param hdc device context (not really required)
- * @param rgbq RGBQUAD* memory buffer with bitmap bits in BGRA32 format
- * @param width bitmap width (can be larger than the actual painting rectangle)
- * @param height bitmap height
- * @return
- */
- AGGBaseContext(HDC hdc, RGBQUAD* rgbq, LONG width, LONG height)
- {
- m_hdc = hdc;
- attach(rgbq, width, height);
- }
-
- /**
- * construct an empty AGGBase context and assign the optional HDC
- * must be attached to a memory bitmap later by using one of the
- * attach() methods.
- * @param hdc device context
- * @return
- */
- AGGBaseContext(HDC hdc) { m_hdc = hdc; }
-
- /**
- * attach the AGG rendering buffer to a memory bitmap, selected into a HDC for
- * off-screen drawing.
- * @param hbm bitmap to use for rendering.
- */
- void attach(HBITMAP hbm)
- {
- BITMAP bm;
- ::GetObject(hbm, sizeof(bm), &bm);
-
- m_rbuf.attach((unsigned char*)bm.bmBits, bm.bmWidth, bm.bmHeight, bm.bmWidthBytes);
- }
-
- /**
- * attach the AGG rendering buffer to a RGBQUAD array (as returned by
- * GetBufferedPaintBits() API
- *
- * @param rgbq pointer to memory buffer holding the bitmap bits
- * @param width width (in pixels, always properly aligned)
- * @param height height (in pixels)
- */
- void attach(RGBQUAD* rgbq, LONG width, LONG height)
- {
- m_rbuf.attach((unsigned char *)rgbq, width, height, width * 4);
- }
-
- HDC m_hdc;
- agg::rendering_buffer m_rbuf;
-
- ~AGGBaseContext() {}
-};
-
-class AGGContext
-{
-public:
- AGGContext(HBITMAP hbm)
- {
- BITMAP bm;
- ::GetObject(hbm, sizeof(bm), &bm);
-
- m_rbuf.attach((unsigned char*)bm.bmBits, bm.bmWidth, bm.bmHeight, bm.bmWidthBytes);
- initPipeline();
- };
-
- AGGContext(RGBQUAD* rgbq, LONG width, LONG height)
- {
- m_rbuf.attach((unsigned char *)rgbq, width, height, width * 4);
- initPipeline();
- }
-
- AGGContext() {}
-
- void initPipeline()
- {
- m_pixfmt.attach(m_rbuf);
- m_rbase.attach(m_pixfmt);
- m_solid_renderer.attach(m_rbase);
- m_span_interpolator = agg::span_interpolator_linear<>(m_gradient_trans);
- m_span_gradient = span_gradient_t(m_span_interpolator, m_gradient_func, m_color_array, 0, 200);
- m_gradient_renderer.attach(m_rbase, m_span_allocator, m_span_gradient);
- }
-
- void attach(HBITMAP hbm)
- {
- BITMAP bm;
- ::GetObject(hbm, sizeof(bm), &bm);
-
- m_rbuf.attach((unsigned char*)bm.bmBits, bm.bmWidth, bm.bmHeight, bm.bmWidthBytes);
- initPipeline();
- }
-
- void attach(RGBQUAD* rgbq, LONG width, LONG height, LONG stride)
- {
- m_rbuf.attach((unsigned char *)rgbq, width, height, stride);
- initPipeline();
- }
-
- /*
- * fill the color array we need for the gradient with
- */
- template<class Array> static void fill_color_array(Array& arr, agg::rgba8& begin, agg::rgba8& end)
- {
- unsigned size = arr.size();
-
- for(unsigned i = 0; i < size; ++i)
- arr[i] = begin.gradient(end, i / double(size));
- }
-
-public:
- agg::rendering_buffer m_rbuf;
- agg::pixfmt_bgra32 m_pixfmt;
- agg::renderer_base<agg::pixfmt_bgra32> m_rbase;
-
- agg::renderer_scanline_aa_solid<agg::renderer_base<agg::pixfmt_bgra32> > m_solid_renderer;
- typedef agg::span_gradient<agg::rgba8, agg::span_interpolator_linear<>, agg::gradient_x, agg::pod_auto_array<agg::rgba8, 256> > span_gradient_t;
- typedef agg::span_allocator<agg::rgba8> span_allocator_t;
-
- agg::renderer_scanline_aa<agg::renderer_base<agg::pixfmt_bgra32>, span_allocator_t, span_gradient_t> m_gradient_renderer;
-
- span_allocator_t m_span_allocator;
- span_gradient_t m_span_gradient;
- agg::span_interpolator_linear<> m_span_interpolator;
- agg::gradient_x m_gradient_func;
- agg::pod_auto_array<agg::rgba8, 256> m_color_array;
- agg::trans_affine m_gradient_trans;
-};
-
-class AGGPaintHelper
-{
-public:
- AGGPaintHelper(HDC hdc)
- {
- hdcMem = hdc;
- aggctx = new AGGBaseContext(hdcMem);
- }
-
- ~AGGPaintHelper()
- {
- delete aggctx;
- };
-
-public:
- agg::rounded_rect* current_shape;
- AGGBaseContext* aggctx;
- HDC hdcMem;
-};
-
-class CLCPaintHelper : public AGGPaintHelper
-{
-public:
- CLCPaintHelper(const HWND hwndCLC, ClcData* clcdat, DWORD windowstyle, RECT* rc, int yFirst, int fontShift, int idx) : AGGPaintHelper(0)
- {
- hwnd = hwndCLC;
- indent = 0;
- dat = clcdat;
- style = windowstyle;
- clRect = rc;
- y = yFirst;
- index = idx;
- bFirstNGdrawn = false;
- groupCountsFontTopShift = fontShift;
- isContactFloater = false;
- }
-
- void setHDC(const HDC hdc)
- {
- hdcMem = hdc;
- }
-
- virtual ~CLCPaintHelper() {};
-
- void setFloater () { isContactFloater = true; }
- void Paint (ClcGroup* group, ClcContact* contact, int rowHeight);
- int drawAvatar (RECT *rc, ClcContact *contact, int y, WORD cstatus, int rowHeight);
- HFONT changeToFont (const unsigned int id);
- void setHotTrackColour ();
-
- int indent;
- int y;
- int index;
- int fSelected;
- HANDLE hTheme, hbp;
- bool fAvatar, fSecondLine;
- TDspOverride* dsp;
-
- HWND hwnd;
- ClcData* dat;
- DWORD style;
- RECT* clRect;
- bool bFirstNGdrawn;
- int groupCountsFontTopShift;
- bool isContactFloater;
-
- TStatusItem *sevencontact_pos, *soddcontact_pos, *sfirstitem,
- *ssingleitem, *slastitem, *sfirstitem_NG, *ssingleitem_NG, *slastitem_NG;
-
-private:
- int m_fontHeight;
-};
-
-class Gfx
-{
-public:
-#ifdef _USE_D2D
- static ID2D1Factory* pD2DFactory;
-#endif
- static COLORREF txtColor;
- //static ULONG_PTR gdiPlusToken;
- //static Gdiplus::GdiplusStartupInput gdiPlusStartupInput;
-
-public:
- static inline HANDLE initiateBufferedPaint (const HDC hdcSrc, RECT& rc, HDC& hdcOut);
- static inline void finalizeBufferedPaint (HANDLE hbp, RECT *rc, BYTE alpha = 0);
- static HBITMAP createRGBABitmap (const LONG cx, const LONG cy);
- static inline void drawBGFromSurface (const HWND hwnd, const RECT& rc, HDC hdc);
- static inline void renderSkinItem (HDC hdc, RECT* rc, TImageItem* item);
- static inline void renderSkinItem (AGGPaintHelper *ph, TStatusItem *item, RECT* rc);
-
- static void setBitmapAlpha (HBITMAP hBitmap, BYTE bAlpha);
- static void deSaturate (HBITMAP hBitmap, bool fReduceContrast = false);
- static void preMultiply (HBITMAP hBitmap, int mode);
- static void __fastcall renderImageItem (HDC hdc, TImageItem *item, RECT *rc);
- static void colorizeGlyph (TImageItem *item, const COLORREF clr, float H, float S, float V);
-
- static inline void hsvTransformPixel (BYTE *p, float value, float vsu, float vsw, BYTE alpha);
- static inline void rgbTransformPixel (BYTE *p, float r, float g, float b, BYTE alpha);
-
- static void D2D_Init ();
- static void D2D_Release ();
-
- static inline void setTextColor (const COLORREF clr);
- static inline COLORREF getTextColor ();
- static int renderText (HDC hdc, HANDLE hTheme, const TCHAR *szText, RECT *rc, DWORD dtFlags, const int iGlowSize = 0, int length = -1, bool fForceAero = false);
- static void shutDown() { if (m_p) free(m_p); }
-
- /**
- * load a png image using miranda image load service.
- *
- * @param szFilename full path and filename of the image
- *
- * @return HBITMAP of the image loaded
- */
- template<class T> static HBITMAP loadPNG(const T* szFilename)
- {
- HBITMAP hBitmap = 0;
- DWORD dwFlags = 0;
-
- if(sizeof(T) > 1)
- dwFlags = IMGL_WCHAR;
-
- hBitmap = (HBITMAP)CallService(MS_IMG_LOAD, (WPARAM)szFilename, dwFlags);
- if(CALLSERVICE_NOTFOUND == (INT_PTR)hBitmap) {
- hBitmap = 0;
- throw(CRTException("Critical error while loading a skin", L"The image service plugin is not available"));
- }
- return(hBitmap);
- }
-
- /*
- * a generic buffer used by various things in the class Will only be realloc'd and grow when
- * needed. Free'd on shutdown. It's primarily used by bitmap operations as temporary buffer
- */
- static BYTE* m_p;
- static size_t m_sAllocated;
-};
-
-/*
- * some inlined functions
- */
-
-/**
- * Initiate a buffered paint operation
- *
- * @param hdcSrc The source device context (usually obtained by BeginPaint())
- * @param rc RECT&: the target rectangle that receives the painting
- * @param hdcOut HDC& (out) receives the buffered device context handle
- *
- * @return (HANDLE) buffered paint handle
- */
-inline HANDLE Gfx::initiateBufferedPaint(const HDC hdcSrc, RECT& rc, HDC& hdcOut)
-{
- HANDLE hbp = Api::pfnBeginBufferedPaint(hdcSrc, &rc, BPBF_TOPDOWNDIB, NULL, &hdcOut);
- return(hbp);
-}
-
-/**
- * finalize buffered paint cycle and apply (if applicable) the global alpha value
- *
- * @param hbp HANDLE: handle of the buffered paint context
- * @param rc RECT*: target rectangly where alpha value should be applied
- */
-inline void Gfx::finalizeBufferedPaint(HANDLE hbp, RECT *rc, BYTE alpha)
-{
- if(alpha > 0)
- Api::pfnBufferedPaintSetAlpha(hbp, rc, alpha);
- Api::pfnEndBufferedPaint(hbp, TRUE);
-}
-
-/**
- * blit the background from the back buffer surface (cfg::dat.hdcBg) to the
- * client area of the child frame.
- * @param hwnd child window handle
- * @param rcCl child window client area
- * @param hdc painting DC
- */
-inline void Gfx::drawBGFromSurface(const HWND hwnd, const RECT& rcCl, HDC hdc)
-{
- RECT rcMapped = rcCl;
-
- MapWindowPoints(hwnd, pcli->hwndContactList, (POINT *)&rcMapped, 2);
- BitBlt(hdc, rcCl.left, rcCl.top, rcCl.right - rcCl.left, rcCl.bottom - rcCl.top, cfg::dat.hdcBg,
- rcMapped.left, rcMapped.top, SRCCOPY);
-}
-
-/**
- * render a simply skin item (image item only, do not render the underlays)
- * @param hdc device context
- * @param rc target rectangle
- * @param imageItem image item to render
- */
-inline void Gfx::renderSkinItem(HDC hdc, RECT* rc, TImageItem *imageItem)
-{
- if(imageItem)
- renderImageItem(hdc, imageItem, rc);
-}
-
-/**
- * render a skin item with a possible underlay (gradient and corner
- * shape)
- * @param ph CLCPaintHelper* (clc painting context with AGG base context)
- * @param item TStatusItem* (item to render)
- * @param rc target rectangle
- */
-inline void Gfx::renderSkinItem(AGGPaintHelper *ph, TStatusItem *item, RECT* rc)
-{
- TImageItem *imageItem = item->imageItem;
-
- if (CLC::fInPaint && CLC::iHottrackItem) {
- item = &Skin::statusItems[ID_EXTBKHOTTRACK];
- if (item->IGNORED == 0)
- imageItem = item->imageItem;
- CLC::fHottrackDone = true;
- }
-
- if(!(item->dwFlags & S_ITEM_SKIP_UNDERLAY)) {
- /*
- * attach the item rendering pipeline to the AGG context rendering buffer
- */
- item->pixfmt->attach(ph->aggctx->m_rbuf);
- item->rbase->attach(*(item->pixfmt));
- if(item->dwFlags & AGG_USE_GRADIENT_X_RENDERER) {
- item->span_gradient_x->d1(rc->left);
- item->span_gradient_x->d2(rc->right);
- }
- else {
- item->span_gradient_y->d1(rc->top);
- item->span_gradient_y->d2(rc->bottom);
- }
-
- /*
- * for each rendering cycle, the first shape defines the final shape for this item
- * this allows items like "first item of a group" or "last item of a group" define
- * their own shapes - overlays like a selection or hottrack item will use the
- * original shape and only render their own color(s).
- */
- if(0 == ph->current_shape)
- ph->current_shape = item->rect;
-
- ph->current_shape->rect(rc->left, rc->top, rc->right, rc->bottom);
-
- agg::rasterizer_scanline_aa<> r;
- r.add_path(*(ph->current_shape));
- agg::scanline_p8 sl;
-
- if(item->dwFlags & AGG_USE_GRADIENT_X_RENDERER)
- agg::render_scanlines(r, sl, *(item->gradient_renderer_x));
- else if(item->dwFlags & AGG_USE_GRADIENT_Y_RENDERER)
- agg::render_scanlines(r, sl, *(item->gradient_renderer_y));
- else
- agg::render_scanlines(r, sl, *(item->solid_renderer));
- }
- if(imageItem && !(item->dwFlags & S_ITEM_SKIP_IMAGE))
- renderImageItem(ph->hdcMem, imageItem, rc);
-}
-
-/**
- * set our text color for Gfx::RenderText() - replaces GDI SetTextColor() for all
- * cases where we are using DrawThemeTextEx() for full 32bit text rendering.
- * @param clr new text color to use
- */
-inline void Gfx::setTextColor(const COLORREF clr)
-{
- txtColor = clr;
-}
-
-inline COLORREF Gfx::getTextColor()
-{
- return(txtColor);
-}
-
-inline void Gfx::hsvTransformPixel(BYTE *p, float value, float v_s_u, float v_s_w, BYTE alpha)
-{
- // ain't matrices beautiful? :)
-
- float r = (.299 * value +.701 * v_s_u +.168 * v_s_w) * p[2] + (.587 * value -.587 * v_s_u +.330 * v_s_w) * p[1] + (.114 * value -.114 * v_s_u -.497 * v_s_w) * p[0];
- float g = (.299 * value -.299 * v_s_u -.328 * v_s_w) * p[2] + (.587 * value +.413 * v_s_u +.035 * v_s_w) * p[1] + (.114 * value -.114 * v_s_u +.292 * v_s_w) * p[0];
- float b = (.299 * value -.3 * v_s_u +1.25 * v_s_w) * p[2]+ (.587* value -.588 * v_s_u -1.05 * v_s_w) * p[1] + (.114 * value +.886 * v_s_u -.203 * v_s_w) * p[0];
-
- /*
- * premultiply
- */
- p[0] = (int)b * alpha/255;
- p[1] = (int)g * alpha/255;
- p[2] = (int)r * alpha/255;
-}
-
-inline void Gfx::rgbTransformPixel(BYTE *p, float r, float g, float b, BYTE alpha)
-{
- p[0] = (int)(p[0] + b) > 255 ? 255 : p[0] + b;
- p[1] = (int)(p[1] + g) > 255 ? 255 : p[1] + g;
- p[2] = (int)(p[2] + r) > 255 ? 255 : p[2] + r;
-
- p[0] = p[0] * alpha/255;
- p[1] = p[1] * alpha/255;
- p[2] = p[2] * alpha/255;
-}
-
-#ifndef _XP_SUPPORT
-#define INIT_PAINT(a, b, c) (hbp = Gfx::initiateBufferedPaint((a), (b), (c)))
-#define FINALIZE_PAINT(a, b, c) Gfx::finalizeBufferedPaint((a), (b), (c))
-#else
-#endif
-
-#endif /*__GFX_H_*/
-
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