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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 | |
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9 | static ATOM tip_class = 0; |
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10 | |
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11 | static HFONT tip_font; |
12 | static COLORREF tip_bg; |
13 | static COLORREF tip_text; |
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14 | |
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15 | static LRESULT CALLBACK SizeTipWndProc(HWND hWnd, UINT nMsg, |
16 | WPARAM wParam, LPARAM lParam) |
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17 | { |
18 | |
19 | switch (nMsg) { |
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20 | case WM_ERASEBKGND: |
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21 | return TRUE; |
22 | |
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23 | case WM_PAINT: |
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24 | { |
25 | HBRUSH hbr; |
26 | HGDIOBJ holdbr; |
27 | RECT cr; |
28 | int wtlen; |
29 | LPTSTR wt; |
30 | HDC hdc; |
31 | |
32 | PAINTSTRUCT ps; |
33 | hdc = BeginPaint(hWnd, &ps); |
34 | |
35 | SelectObject(hdc, tip_font); |
36 | SelectObject(hdc, GetStockObject(BLACK_PEN)); |
37 | |
38 | hbr = CreateSolidBrush(tip_bg); |
39 | holdbr = SelectObject(hdc, hbr); |
40 | |
41 | GetClientRect(hWnd, &cr); |
42 | Rectangle(hdc, cr.left, cr.top, cr.right, cr.bottom); |
43 | |
44 | wtlen = GetWindowTextLength(hWnd); |
45 | wt = (LPTSTR)malloc((wtlen+1)*sizeof(TCHAR)); |
46 | GetWindowText(hWnd, wt, wtlen+1); |
47 | |
48 | SetTextColor(hdc, tip_text); |
49 | SetBkColor(hdc, tip_bg); |
50 | |
51 | TextOut(hdc, cr.left+3, cr.top+3, wt, wtlen); |
52 | |
53 | free(wt); |
54 | |
55 | SelectObject(hdc, holdbr); |
56 | DeleteObject(hbr); |
57 | |
58 | EndPaint(hWnd, &ps); |
59 | } |
60 | return 0; |
61 | |
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62 | case WM_NCHITTEST: |
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63 | return HTTRANSPARENT; |
64 | |
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65 | case WM_DESTROY: |
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66 | DeleteObject(tip_font); |
67 | tip_font = NULL; |
68 | break; |
69 | |
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70 | case WM_SETTEXT: |
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71 | { |
72 | LPCTSTR str = (LPCTSTR)lParam; |
73 | SIZE sz; |
74 | HDC hdc = CreateCompatibleDC(NULL); |
75 | |
76 | SelectObject(hdc, tip_font); |
77 | GetTextExtentPoint32(hdc, str, _tcslen(str), &sz); |
78 | |
79 | SetWindowPos(hWnd, NULL, 0, 0, sz.cx+6, sz.cy+6, SWP_NOZORDER|SWP_NOMOVE|SWP_NOACTIVATE); |
80 | InvalidateRect(hWnd, NULL, FALSE); |
81 | |
82 | DeleteDC(hdc); |
83 | } |
84 | break; |
85 | } |
86 | |
87 | return DefWindowProc(hWnd, nMsg, wParam, lParam); |
88 | } |
89 | |
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90 | static HWND tip_wnd = NULL; |
91 | static int tip_enabled = 0; |
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92 | |
93 | void UpdateSizeTip(HWND src, int cx, int cy) |
94 | { |
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95 | TCHAR str[32]; |
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96 | |
97 | if (!tip_enabled) return; |
98 | |
99 | if (!tip_wnd) { |
100 | NONCLIENTMETRICS nci; |
101 | |
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102 | /* First make sure the window class is registered */ |
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103 | |
104 | if (!tip_class) { |
105 | WNDCLASS wc; |
106 | wc.style = CS_HREDRAW|CS_VREDRAW; |
107 | wc.lpfnWndProc = SizeTipWndProc; |
108 | wc.cbClsExtra = 0; |
109 | wc.cbWndExtra = 0; |
110 | wc.hInstance = putty_inst; |
111 | wc.hIcon = NULL; |
112 | wc.hCursor = NULL; |
113 | wc.hbrBackground = NULL; |
114 | wc.lpszMenuName = NULL; |
115 | wc.lpszClassName = "SizeTipClass"; |
116 | |
117 | tip_class = RegisterClass(&wc); |
118 | } |
119 | |
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120 | #if 0 |
121 | /* Default values based on Windows Standard color scheme */ |
122 | |
123 | tip_font = GetStockObject(SYSTEM_FONT); |
124 | tip_bg = RGB(255, 255, 225); |
125 | tip_text = RGB(0, 0, 0); |
126 | #endif |
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127 | |
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128 | /* Prepare other GDI objects and drawing info */ |
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129 | |
130 | tip_bg = GetSysColor(COLOR_INFOBK); |
131 | tip_text = GetSysColor(COLOR_INFOTEXT); |
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132 | |
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133 | memset(&nci, 0, sizeof(NONCLIENTMETRICS)); |
134 | nci.cbSize = sizeof(NONCLIENTMETRICS); |
135 | SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof(NONCLIENTMETRICS), &nci, 0); |
136 | tip_font = CreateFontIndirect(&nci.lfStatusFont); |
137 | } |
138 | |
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139 | /* Generate the tip text */ |
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140 | |
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141 | sprintf(str, "%dx%d", cx, cy); |
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142 | |
143 | if (!tip_wnd) { |
144 | HDC hdc; |
145 | SIZE sz; |
146 | RECT wr; |
147 | int ix, iy; |
148 | |
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149 | /* calculate the tip's size */ |
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150 | |
151 | hdc = CreateCompatibleDC(NULL); |
152 | GetTextExtentPoint32(hdc, str, _tcslen(str), &sz); |
153 | DeleteDC(hdc); |
154 | |
155 | GetWindowRect(src, &wr); |
156 | |
157 | ix = wr.left; |
158 | if (ix<16) ix = 16; |
159 | |
160 | iy = wr.top - sz.cy; |
161 | if (iy<16) iy = 16; |
162 | |
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163 | /* Create the tip window */ |
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164 | |
165 | tip_wnd = CreateWindowEx(WS_EX_TOOLWINDOW|WS_EX_TOPMOST, MAKEINTRESOURCE(tip_class), str, WS_POPUP, |
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166 | ix, iy, sz.cx, sz.cy, |
167 | NULL, NULL, putty_inst, NULL); |
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168 | |
169 | ShowWindow(tip_wnd, SW_SHOWNOACTIVATE); |
170 | |
171 | } else { |
172 | |
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173 | /* Tip already exists, just set the text */ |
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174 | |
175 | SetWindowText(tip_wnd, str); |
176 | } |
177 | } |
178 | |
179 | void EnableSizeTip(int bEnable) |
180 | { |
181 | if (tip_wnd && !bEnable) { |
182 | DestroyWindow(tip_wnd); |
183 | tip_wnd = NULL; |
184 | } |
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185 | |
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186 | tip_enabled = bEnable; |
187 | } |