Mercurial > foo_out_sdl

comparison foosdk/sdk/libPPUI/GDIUtils.cpp @ 1:20d02a178406 default tip

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author Paper <paper@tflc.us>
date Mon, 05 Jan 2026 02:15:46 -0500
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0:e9bb126753e7 1:20d02a178406
1 #include "stdafx.h"
2
3 #include "GDIUtils.h"
4
5 HBITMAP CreateDIB24(CSize size) {
6 struct {
7 BITMAPINFOHEADER bmi;
8 } bi = {};
9 bi.bmi.biSize = sizeof(bi.bmi);
10 bi.bmi.biWidth = size.cx;
11 bi.bmi.biHeight = size.cy;
12 bi.bmi.biPlanes = 1;
13 bi.bmi.biBitCount = 24;
14 bi.bmi.biCompression = BI_RGB;
15 void* bitsPtr;
16 return CreateDIBSection(NULL, reinterpret_cast<const BITMAPINFO*>(&bi), DIB_RGB_COLORS, &bitsPtr, 0, 0);
17 }
18
19 HBITMAP CreateDIB16(CSize size) {
20 struct {
21 BITMAPINFOHEADER bmi;
22 } bi = {};
23 bi.bmi.biSize = sizeof(bi.bmi);
24 bi.bmi.biWidth = size.cx;
25 bi.bmi.biHeight = size.cy;
26 bi.bmi.biPlanes = 1;
27 bi.bmi.biBitCount = 16;
28 bi.bmi.biCompression = BI_RGB;
29 void* bitsPtr;
30 return CreateDIBSection(NULL, reinterpret_cast<const BITMAPINFO*>(&bi), DIB_RGB_COLORS, &bitsPtr, 0, 0);
31 }
32
33 HBITMAP CreateDIB8(CSize size, const COLORREF palette[256]) {
34 struct {
35 BITMAPINFOHEADER bmi;
36 COLORREF colors[256];
37 } bi = { };
38 for (int c = 0; c < 256; ++c) bi.colors[c] = palette[c];
39 bi.bmi.biSize = sizeof(bi.bmi);
40 bi.bmi.biWidth = size.cx;
41 bi.bmi.biHeight = size.cy;
42 bi.bmi.biPlanes = 1;
43 bi.bmi.biBitCount = 8;
44 bi.bmi.biCompression = BI_RGB;
45 bi.bmi.biClrUsed = 256;
46 void* bitsPtr;
47 return CreateDIBSection(NULL, reinterpret_cast<const BITMAPINFO*>(&bi), DIB_RGB_COLORS, &bitsPtr, 0, 0);
48 }
49
50 void CreateScaledFont(CFont& out, CFontHandle in, double scale) {
51 LOGFONT lf;
52 WIN32_OP_D(in.GetLogFont(lf));
53 int temp = pfc::rint32(scale * lf.lfHeight);
54 if (temp == 0) temp = pfc::sgn_t(lf.lfHeight);
55 lf.lfHeight = temp;
56 WIN32_OP_D(out.CreateFontIndirect(&lf) != NULL);
57 }
58
59 void CreateScaledFontEx(CFont& out, CFontHandle in, double scale, int weight) {
60 LOGFONT lf;
61 WIN32_OP_D(in.GetLogFont(lf));
62 int temp = pfc::rint32(scale * lf.lfHeight);
63 if (temp == 0) temp = pfc::sgn_t(lf.lfHeight);
64 lf.lfHeight = temp;
65 lf.lfWeight = weight;
66 WIN32_OP_D(out.CreateFontIndirect(&lf) != NULL);
67 }
68
69 void CreatePreferencesHeaderFont(CFont& out, CWindow source) {
70 CreateScaledFontEx(out, source.GetFont(), 1.3, FW_BOLD);
71 }
72
73 void CreatePreferencesHeaderFont2(CFont& out, CWindow source) {
74 CreateScaledFontEx(out, source.GetFont(), 1.1, FW_BOLD);
75 }
76
77 CSize GetBitmapSize(HBITMAP bmp) {
78 PFC_ASSERT(bmp != NULL);
79 CBitmapHandle h(bmp);
80 BITMAP bm = {};
81 WIN32_OP_D(h.GetBitmap(bm));
82 return CSize(bm.bmWidth, bm.bmHeight);
83 }
84
85 CSize GetIconSize(HICON icon) {
86 PFC_ASSERT(icon != NULL);
87 CIconHandle h(icon);
88 ICONINFO info = {};
89 WIN32_OP_D( h.GetIconInfo(&info) );
90 CSize ret;
91 if (info.hbmColor != NULL) ret = GetBitmapSize(info.hbmColor);
92 else if (info.hbmMask != NULL) ret = GetBitmapSize(info.hbmMask);
93 else { PFC_ASSERT(!"???"); }
94 if (info.hbmColor != NULL) DeleteObject(info.hbmColor);
95 if (info.hbmMask != NULL) DeleteObject(info.hbmMask);
96 return ret;
97 }
98
99 HBRUSH MakeTempBrush(HDC dc, COLORREF color) noexcept {
100 SetDCBrushColor(dc, color); return (HBRUSH)GetStockObject(DC_BRUSH);
101 }