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1 #include "stdafx.h"
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2
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3 #include "GDIUtils.h"
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4
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5 HBITMAP CreateDIB24(CSize size) {
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6 struct {
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7 BITMAPINFOHEADER bmi;
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8 } bi = {};
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9 bi.bmi.biSize = sizeof(bi.bmi);
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10 bi.bmi.biWidth = size.cx;
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11 bi.bmi.biHeight = size.cy;
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12 bi.bmi.biPlanes = 1;
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13 bi.bmi.biBitCount = 24;
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14 bi.bmi.biCompression = BI_RGB;
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15 void* bitsPtr;
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16 return CreateDIBSection(NULL, reinterpret_cast<const BITMAPINFO*>(&bi), DIB_RGB_COLORS, &bitsPtr, 0, 0);
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17 }
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18
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19 HBITMAP CreateDIB16(CSize size) {
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20 struct {
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21 BITMAPINFOHEADER bmi;
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22 } bi = {};
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23 bi.bmi.biSize = sizeof(bi.bmi);
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24 bi.bmi.biWidth = size.cx;
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25 bi.bmi.biHeight = size.cy;
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26 bi.bmi.biPlanes = 1;
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27 bi.bmi.biBitCount = 16;
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28 bi.bmi.biCompression = BI_RGB;
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29 void* bitsPtr;
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30 return CreateDIBSection(NULL, reinterpret_cast<const BITMAPINFO*>(&bi), DIB_RGB_COLORS, &bitsPtr, 0, 0);
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31 }
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32
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33 HBITMAP CreateDIB8(CSize size, const COLORREF palette[256]) {
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34 struct {
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35 BITMAPINFOHEADER bmi;
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36 COLORREF colors[256];
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37 } bi = { };
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38 for (int c = 0; c < 256; ++c) bi.colors[c] = palette[c];
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39 bi.bmi.biSize = sizeof(bi.bmi);
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40 bi.bmi.biWidth = size.cx;
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41 bi.bmi.biHeight = size.cy;
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42 bi.bmi.biPlanes = 1;
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43 bi.bmi.biBitCount = 8;
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44 bi.bmi.biCompression = BI_RGB;
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45 bi.bmi.biClrUsed = 256;
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46 void* bitsPtr;
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47 return CreateDIBSection(NULL, reinterpret_cast<const BITMAPINFO*>(&bi), DIB_RGB_COLORS, &bitsPtr, 0, 0);
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48 }
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49
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50 void CreateScaledFont(CFont& out, CFontHandle in, double scale) {
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51 LOGFONT lf;
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52 WIN32_OP_D(in.GetLogFont(lf));
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53 int temp = pfc::rint32(scale * lf.lfHeight);
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54 if (temp == 0) temp = pfc::sgn_t(lf.lfHeight);
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55 lf.lfHeight = temp;
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56 WIN32_OP_D(out.CreateFontIndirect(&lf) != NULL);
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57 }
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58
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59 void CreateScaledFontEx(CFont& out, CFontHandle in, double scale, int weight) {
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60 LOGFONT lf;
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61 WIN32_OP_D(in.GetLogFont(lf));
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62 int temp = pfc::rint32(scale * lf.lfHeight);
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63 if (temp == 0) temp = pfc::sgn_t(lf.lfHeight);
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64 lf.lfHeight = temp;
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65 lf.lfWeight = weight;
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66 WIN32_OP_D(out.CreateFontIndirect(&lf) != NULL);
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67 }
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68
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69 void CreatePreferencesHeaderFont(CFont& out, CWindow source) {
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70 CreateScaledFontEx(out, source.GetFont(), 1.3, FW_BOLD);
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71 }
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72
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73 void CreatePreferencesHeaderFont2(CFont& out, CWindow source) {
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74 CreateScaledFontEx(out, source.GetFont(), 1.1, FW_BOLD);
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75 }
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76
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77 CSize GetBitmapSize(HBITMAP bmp) {
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78 PFC_ASSERT(bmp != NULL);
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79 CBitmapHandle h(bmp);
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80 BITMAP bm = {};
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81 WIN32_OP_D(h.GetBitmap(bm));
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82 return CSize(bm.bmWidth, bm.bmHeight);
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83 }
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84
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85 CSize GetIconSize(HICON icon) {
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86 PFC_ASSERT(icon != NULL);
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87 CIconHandle h(icon);
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88 ICONINFO info = {};
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89 WIN32_OP_D( h.GetIconInfo(&info) );
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90 CSize ret;
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91 if (info.hbmColor != NULL) ret = GetBitmapSize(info.hbmColor);
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92 else if (info.hbmMask != NULL) ret = GetBitmapSize(info.hbmMask);
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93 else { PFC_ASSERT(!"???"); }
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94 if (info.hbmColor != NULL) DeleteObject(info.hbmColor);
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95 if (info.hbmMask != NULL) DeleteObject(info.hbmMask);
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96 return ret;
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97 }
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98
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99 HBRUSH MakeTempBrush(HDC dc, COLORREF color) noexcept {
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100 SetDCBrushColor(dc, color); return (HBRUSH)GetStockObject(DC_BRUSH);
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101 }
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