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1 | #include <windows.h> |
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2 | #include <stdio.h> |
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3 | #include <stdlib.h> |
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4 | #include <tchar.h> |
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5 | |
6 | #include "putty.h" |
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7 | #include "winstuff.h" |
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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, |
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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; |
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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; |
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31 | |
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32 | PAINTSTRUCT ps; |
33 | hdc = BeginPaint(hWnd, &ps); |
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34 | |
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35 | SelectObject(hdc, tip_font); |
36 | SelectObject(hdc, GetStockObject(BLACK_PEN)); |
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37 | |
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38 | hbr = CreateSolidBrush(tip_bg); |
39 | holdbr = SelectObject(hdc, hbr); |
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40 | |
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41 | GetClientRect(hWnd, &cr); |
42 | Rectangle(hdc, cr.left, cr.top, cr.right, cr.bottom); |
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43 | |
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44 | wtlen = GetWindowTextLength(hWnd); |
45 | wt = (LPTSTR) smalloc((wtlen + 1) * sizeof(TCHAR)); |
46 | GetWindowText(hWnd, wt, wtlen + 1); |
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47 | |
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48 | SetTextColor(hdc, tip_text); |
49 | SetBkColor(hdc, tip_bg); |
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50 | |
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51 | TextOut(hdc, cr.left + 3, cr.top + 3, wt, wtlen); |
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52 | |
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53 | sfree(wt); |
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54 | |
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55 | SelectObject(hdc, holdbr); |
56 | DeleteObject(hbr); |
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57 | |
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58 | EndPaint(hWnd, &ps); |
59 | } |
60 | return 0; |
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61 | |
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62 | case WM_NCHITTEST: |
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63 | return HTTRANSPARENT; |
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64 | |
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65 | case WM_DESTROY: |
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66 | DeleteObject(tip_font); |
67 | tip_font = NULL; |
68 | break; |
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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); |
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75 | |
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76 | SelectObject(hdc, tip_font); |
77 | GetTextExtentPoint32(hdc, str, _tcslen(str), &sz); |
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78 | |
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79 | SetWindowPos(hWnd, NULL, 0, 0, sz.cx + 6, sz.cy + 6, |
80 | SWP_NOZORDER | SWP_NOMOVE | SWP_NOACTIVATE); |
81 | InvalidateRect(hWnd, NULL, FALSE); |
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82 | |
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83 | DeleteDC(hdc); |
84 | } |
85 | break; |
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86 | } |
87 | |
88 | return DefWindowProc(hWnd, nMsg, wParam, lParam); |
89 | } |
90 | |
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91 | static HWND tip_wnd = NULL; |
92 | static int tip_enabled = 0; |
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93 | |
94 | void UpdateSizeTip(HWND src, int cx, int cy) |
95 | { |
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96 | TCHAR str[32]; |
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97 | |
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98 | if (!tip_enabled) |
99 | return; |
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100 | |
101 | if (!tip_wnd) { |
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102 | NONCLIENTMETRICS nci; |
103 | |
104 | /* First make sure the window class is registered */ |
105 | |
106 | if (!tip_class) { |
107 | WNDCLASS wc; |
108 | wc.style = CS_HREDRAW | CS_VREDRAW; |
109 | wc.lpfnWndProc = SizeTipWndProc; |
110 | wc.cbClsExtra = 0; |
111 | wc.cbWndExtra = 0; |
112 | wc.hInstance = hinst; |
113 | wc.hIcon = NULL; |
114 | wc.hCursor = NULL; |
115 | wc.hbrBackground = NULL; |
116 | wc.lpszMenuName = NULL; |
117 | wc.lpszClassName = "SizeTipClass"; |
118 | |
119 | tip_class = RegisterClass(&wc); |
120 | } |
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121 | #if 0 |
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122 | /* Default values based on Windows Standard color scheme */ |
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123 | |
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124 | tip_font = GetStockObject(SYSTEM_FONT); |
125 | tip_bg = RGB(255, 255, 225); |
126 | tip_text = RGB(0, 0, 0); |
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127 | #endif |
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128 | |
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129 | /* Prepare other GDI objects and drawing info */ |
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130 | |
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131 | tip_bg = GetSysColor(COLOR_INFOBK); |
132 | tip_text = GetSysColor(COLOR_INFOTEXT); |
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133 | |
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134 | memset(&nci, 0, sizeof(NONCLIENTMETRICS)); |
135 | nci.cbSize = sizeof(NONCLIENTMETRICS); |
136 | SystemParametersInfo(SPI_GETNONCLIENTMETRICS, |
137 | sizeof(NONCLIENTMETRICS), &nci, 0); |
138 | tip_font = CreateFontIndirect(&nci.lfStatusFont); |
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139 | } |
140 | |
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141 | /* Generate the tip text */ |
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142 | |
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143 | sprintf(str, "%dx%d", cx, cy); |
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144 | |
145 | if (!tip_wnd) { |
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146 | HDC hdc; |
147 | SIZE sz; |
148 | RECT wr; |
149 | int ix, iy; |
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150 | |
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151 | /* calculate the tip's size */ |
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152 | |
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153 | hdc = CreateCompatibleDC(NULL); |
154 | GetTextExtentPoint32(hdc, str, _tcslen(str), &sz); |
155 | DeleteDC(hdc); |
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156 | |
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157 | GetWindowRect(src, &wr); |
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158 | |
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159 | ix = wr.left; |
160 | if (ix < 16) |
161 | ix = 16; |
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162 | |
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163 | iy = wr.top - sz.cy; |
164 | if (iy < 16) |
165 | iy = 16; |
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166 | |
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167 | /* Create the tip window */ |
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168 | |
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169 | tip_wnd = |
170 | CreateWindowEx(WS_EX_TOOLWINDOW | WS_EX_TOPMOST, |
171 | MAKEINTRESOURCE(tip_class), str, WS_POPUP, ix, |
172 | iy, sz.cx, sz.cy, NULL, NULL, hinst, NULL); |
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173 | |
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174 | ShowWindow(tip_wnd, SW_SHOWNOACTIVATE); |
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175 | |
176 | } else { |
177 | |
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178 | /* Tip already exists, just set the text */ |
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179 | |
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180 | SetWindowText(tip_wnd, str); |
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181 | } |
182 | } |
183 | |
184 | void EnableSizeTip(int bEnable) |
185 | { |
186 | if (tip_wnd && !bEnable) { |
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187 | DestroyWindow(tip_wnd); |
188 | tip_wnd = NULL; |
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189 | } |
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190 | |
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191 | tip_enabled = bEnable; |
192 | } |