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1 | #include <windows.h> |
2 | #include <winreg.h> |
3 | #include <tchar.h> |
4 | #include <stdio.h> |
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5 | #include <stdlib.h> |
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6 | |
7 | #include "putty.h" |
8 | |
9 | ATOM tip_class = 0; |
10 | |
11 | HFONT tip_font; |
12 | COLORREF tip_bg; |
13 | COLORREF tip_text; |
14 | |
15 | LRESULT CALLBACK SizeTipWndProc(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam) |
16 | { |
17 | |
18 | switch (nMsg) { |
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19 | case WM_ERASEBKGND: |
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20 | return TRUE; |
21 | |
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22 | case WM_PAINT: |
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23 | { |
24 | HBRUSH hbr; |
25 | HGDIOBJ holdbr; |
26 | RECT cr; |
27 | int wtlen; |
28 | LPTSTR wt; |
29 | HDC hdc; |
30 | |
31 | PAINTSTRUCT ps; |
32 | hdc = BeginPaint(hWnd, &ps); |
33 | |
34 | SelectObject(hdc, tip_font); |
35 | SelectObject(hdc, GetStockObject(BLACK_PEN)); |
36 | |
37 | hbr = CreateSolidBrush(tip_bg); |
38 | holdbr = SelectObject(hdc, hbr); |
39 | |
40 | GetClientRect(hWnd, &cr); |
41 | Rectangle(hdc, cr.left, cr.top, cr.right, cr.bottom); |
42 | |
43 | wtlen = GetWindowTextLength(hWnd); |
44 | wt = (LPTSTR)malloc((wtlen+1)*sizeof(TCHAR)); |
45 | GetWindowText(hWnd, wt, wtlen+1); |
46 | |
47 | SetTextColor(hdc, tip_text); |
48 | SetBkColor(hdc, tip_bg); |
49 | |
50 | TextOut(hdc, cr.left+3, cr.top+3, wt, wtlen); |
51 | |
52 | free(wt); |
53 | |
54 | SelectObject(hdc, holdbr); |
55 | DeleteObject(hbr); |
56 | |
57 | EndPaint(hWnd, &ps); |
58 | } |
59 | return 0; |
60 | |
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61 | case WM_NCHITTEST: |
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62 | return HTTRANSPARENT; |
63 | |
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64 | case WM_DESTROY: |
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65 | DeleteObject(tip_font); |
66 | tip_font = NULL; |
67 | break; |
68 | |
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69 | case WM_SETTEXT: |
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70 | { |
71 | LPCTSTR str = (LPCTSTR)lParam; |
72 | SIZE sz; |
73 | HDC hdc = CreateCompatibleDC(NULL); |
74 | |
75 | SelectObject(hdc, tip_font); |
76 | GetTextExtentPoint32(hdc, str, _tcslen(str), &sz); |
77 | |
78 | SetWindowPos(hWnd, NULL, 0, 0, sz.cx+6, sz.cy+6, SWP_NOZORDER|SWP_NOMOVE|SWP_NOACTIVATE); |
79 | InvalidateRect(hWnd, NULL, FALSE); |
80 | |
81 | DeleteDC(hdc); |
82 | } |
83 | break; |
84 | } |
85 | |
86 | return DefWindowProc(hWnd, nMsg, wParam, lParam); |
87 | } |
88 | |
89 | HWND tip_wnd = NULL; |
90 | int tip_enabled = 0; |
91 | |
92 | void UpdateSizeTip(HWND src, int cx, int cy) |
93 | { |
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94 | TCHAR str[32]; |
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95 | |
96 | if (!tip_enabled) return; |
97 | |
98 | if (!tip_wnd) { |
99 | NONCLIENTMETRICS nci; |
100 | |
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101 | /* First make sure the window class is registered */ |
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102 | |
103 | if (!tip_class) { |
104 | WNDCLASS wc; |
105 | wc.style = CS_HREDRAW|CS_VREDRAW; |
106 | wc.lpfnWndProc = SizeTipWndProc; |
107 | wc.cbClsExtra = 0; |
108 | wc.cbWndExtra = 0; |
109 | wc.hInstance = putty_inst; |
110 | wc.hIcon = NULL; |
111 | wc.hCursor = NULL; |
112 | wc.hbrBackground = NULL; |
113 | wc.lpszMenuName = NULL; |
114 | wc.lpszClassName = "SizeTipClass"; |
115 | |
116 | tip_class = RegisterClass(&wc); |
117 | } |
118 | |
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119 | #if 0 |
120 | /* Default values based on Windows Standard color scheme */ |
121 | |
122 | tip_font = GetStockObject(SYSTEM_FONT); |
123 | tip_bg = RGB(255, 255, 225); |
124 | tip_text = RGB(0, 0, 0); |
125 | #endif |
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126 | |
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127 | /* Prepare other GDI objects and drawing info */ |
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128 | |
129 | tip_bg = GetSysColor(COLOR_INFOBK); |
130 | tip_text = GetSysColor(COLOR_INFOTEXT); |
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131 | |
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132 | memset(&nci, 0, sizeof(NONCLIENTMETRICS)); |
133 | nci.cbSize = sizeof(NONCLIENTMETRICS); |
134 | SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof(NONCLIENTMETRICS), &nci, 0); |
135 | tip_font = CreateFontIndirect(&nci.lfStatusFont); |
136 | } |
137 | |
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138 | /* Generate the tip text */ |
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139 | |
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140 | sprintf(str, "%dx%d", cx, cy); |
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141 | |
142 | if (!tip_wnd) { |
143 | HDC hdc; |
144 | SIZE sz; |
145 | RECT wr; |
146 | int ix, iy; |
147 | |
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148 | /* calculate the tip's size */ |
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149 | |
150 | hdc = CreateCompatibleDC(NULL); |
151 | GetTextExtentPoint32(hdc, str, _tcslen(str), &sz); |
152 | DeleteDC(hdc); |
153 | |
154 | GetWindowRect(src, &wr); |
155 | |
156 | ix = wr.left; |
157 | if (ix<16) ix = 16; |
158 | |
159 | iy = wr.top - sz.cy; |
160 | if (iy<16) iy = 16; |
161 | |
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162 | /* Create the tip window */ |
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163 | |
164 | tip_wnd = CreateWindowEx(WS_EX_TOOLWINDOW|WS_EX_TOPMOST, MAKEINTRESOURCE(tip_class), str, WS_POPUP, |
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165 | ix, iy, sz.cx, sz.cy, |
166 | NULL, NULL, putty_inst, NULL); |
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167 | |
168 | ShowWindow(tip_wnd, SW_SHOWNOACTIVATE); |
169 | |
170 | } else { |
171 | |
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172 | /* Tip already exists, just set the text */ |
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173 | |
174 | SetWindowText(tip_wnd, str); |
175 | } |
176 | } |
177 | |
178 | void EnableSizeTip(int bEnable) |
179 | { |
180 | if (tip_wnd && !bEnable) { |
181 | DestroyWindow(tip_wnd); |
182 | tip_wnd = NULL; |
183 | } |
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184 | |
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185 | tip_enabled = bEnable; |
186 | } |