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1 #include "StdAfx.h"
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2
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3 #ifdef FOOBAR2000_DESKTOP_WINDOWS
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4 #include "dialog_resize_helper.h"
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5
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6 static BOOL GetChildWindowRect(HWND wnd, UINT id, RECT* child)
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7 {
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8 RECT temp;
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9 HWND wndChild = GetDlgItem(wnd, id);
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10 if (wndChild == NULL) return FALSE;
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11 if (!GetWindowRect(wndChild, &temp)) return FALSE;
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12 if (!MapWindowPoints(0, wnd, (POINT*)&temp, 2)) return FALSE;
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13 *child = temp;
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14 return TRUE;
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15 }
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16
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17 void dialog_resize_helper::set_parent(HWND wnd)
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18 {
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19 reset();
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20 parent = wnd;
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21 GetClientRect(parent,&orig_client);
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22 }
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23
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24 void dialog_resize_helper::reset()
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25 {
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26 parent = 0;
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27 sizegrip = 0;
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28 }
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29
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30 void dialog_resize_helper::on_wm_size()
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31 {
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32 if (parent)
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33 {
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34 unsigned count = (unsigned) m_table.get_size();
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35 if (sizegrip != 0) count++;
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36 HDWP hWinPosInfo = BeginDeferWindowPos(count);
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37 for(unsigned n=0;n<m_table.get_size();n++)
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38 {
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39 param & e = m_table[n];
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40 const RECT & orig_rect = rects[n];
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41 RECT cur_client;
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42 GetClientRect(parent,&cur_client);
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43 HWND wnd = GetDlgItem(parent,e.id);
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44 if (wnd != NULL) {
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45 unsigned dest_x = orig_rect.left, dest_y = orig_rect.top,
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46 dest_cx = orig_rect.right - orig_rect.left, dest_cy = orig_rect.bottom - orig_rect.top;
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47
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48 int delta_x = cur_client.right - orig_client.right,
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49 delta_y = cur_client.bottom - orig_client.bottom;
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50
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51 if (e.flags & X_MOVE)
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52 dest_x += delta_x;
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53 else if (e.flags & X_SIZE)
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54 dest_cx += delta_x;
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55
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56 if (e.flags & Y_MOVE)
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57 dest_y += delta_y;
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58 else if (e.flags & Y_SIZE)
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59 dest_cy += delta_y;
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60
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61 hWinPosInfo = DeferWindowPos(hWinPosInfo, wnd,0,dest_x,dest_y,dest_cx,dest_cy,SWP_NOZORDER | SWP_NOOWNERZORDER | SWP_NOACTIVATE);
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62 }
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63 }
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64 if (sizegrip != 0)
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65 {
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66 RECT rc, rc_grip;
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67 GetClientRect(parent, &rc);
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68 GetWindowRect(sizegrip, &rc_grip);
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69 hWinPosInfo = DeferWindowPos(hWinPosInfo, sizegrip, NULL, rc.right - (rc_grip.right - rc_grip.left), rc.bottom - (rc_grip.bottom - rc_grip.top), 0, 0, SWP_NOZORDER | SWP_NOOWNERZORDER | SWP_NOACTIVATE | SWP_NOSIZE);
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70 }
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71 EndDeferWindowPos(hWinPosInfo);
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72 //RedrawWindow(parent,0,0,RDW_INVALIDATE);
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73 }
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74 }
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75
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76 bool dialog_resize_helper::process_message(HWND wnd,UINT msg,WPARAM wp,LPARAM lp) {
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77 LRESULT result = 0;
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78 if (!ProcessWindowMessage(wnd,msg,wp,lp,result)) return false;
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79 SetWindowLongPtr(wnd,DWLP_MSGRESULT,result);
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80 return true;
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81 }
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82
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83 BOOL dialog_resize_helper::ProcessWindowMessage(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT& lResult) {
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84 switch(uMsg) {
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85 case WM_SIZE:
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86 on_wm_size();
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87 return FALSE;
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88 case WM_GETMINMAXINFO:
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89 {
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90 RECT r;
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91 LPMINMAXINFO info = (LPMINMAXINFO) lParam;
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92 DWORD dwStyle = GetWindowLong(hWnd, GWL_STYLE);
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93 DWORD dwExStyle = GetWindowLong(hWnd, GWL_EXSTYLE);
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94 if (max_x && max_y)
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95 {
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96 r.left = 0; r.right = max_x;
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97 r.top = 0; r.bottom = max_y;
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98 MapDialogRect(hWnd,&r);
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99 AdjustWindowRectEx(&r, dwStyle, FALSE, dwExStyle);
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100 info->ptMaxTrackSize.x = r.right - r.left;
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101 info->ptMaxTrackSize.y = r.bottom - r.top;
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102 }
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103 if (min_x && min_y)
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104 {
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105 r.left = 0; r.right = min_x;
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106 r.top = 0; r.bottom = min_y;
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107 MapDialogRect(hWnd,&r);
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108 AdjustWindowRectEx(&r, dwStyle, FALSE, dwExStyle);
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109 info->ptMinTrackSize.x = r.right - r.left;
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110 info->ptMinTrackSize.y = r.bottom - r.top;
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111 }
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112 }
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113 lResult = 0;
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114 return TRUE;
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115 case WM_INITDIALOG:
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116 set_parent(hWnd);
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117 {
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118 t_size n;
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119 for(n=0;n<m_table.get_size();n++) {
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120 GetChildWindowRect(parent,m_table[n].id,&rects[n]);
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121 }
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122 }
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123 return FALSE;
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124 case WM_DESTROY:
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125 reset();
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126 return FALSE;
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127 default:
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128 return FALSE;
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129 }
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130 }
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131
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132 void dialog_resize_helper::add_sizegrip()
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133 {
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134 if (parent != 0 && sizegrip == 0)
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135 {
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136 sizegrip = CreateWindowEx(0, WC_SCROLLBAR, _T(""), WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | SBS_SIZEGRIP | SBS_SIZEBOXBOTTOMRIGHTALIGN,
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137 0, 0, CW_USEDEFAULT, CW_USEDEFAULT,
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138 parent, (HMENU)0, NULL, NULL);
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139 if (sizegrip != 0)
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140 {
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141 RECT rc, rc_grip;
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142 GetClientRect(parent, &rc);
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143 GetWindowRect(sizegrip, &rc_grip);
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144 SetWindowPos(sizegrip, NULL, rc.right - (rc_grip.right - rc_grip.left), rc.bottom - (rc_grip.bottom - rc_grip.top), 0, 0, SWP_NOZORDER | SWP_NOSIZE);
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145 }
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146 }
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147 }
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148
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149
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150 dialog_resize_helper::dialog_resize_helper(const param * src,unsigned count,unsigned p_min_x,unsigned p_min_y,unsigned p_max_x,unsigned p_max_y)
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151 : min_x(p_min_x), min_y(p_min_y), max_x(p_max_x), max_y(p_max_y), parent(0), sizegrip(0)
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152 {
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153 m_table.set_size(count);
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154 unsigned n;
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155 for(n=0;n<count;n++)
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156 m_table[n] = src[n];
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157 rects.set_size(count);
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158 }
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159
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160 dialog_resize_helper::~dialog_resize_helper()
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161 {
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162 }
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163
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164 #endif // FOOBAR2000_DESKTOP_WINDOWS
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