Mercurial > dwindows
annotate dw.hpp @ 2873:0bbfb19022e7
C++: GCC prior to 4.7 does not support the override keyword.
So if using earlier versions of GCC, just remove override.
This allows compilation on ancient GCC and GCC based Xcode.
Also remove virtual from the application, I don't think it
is needed and old GCC pukes on it when it is there.
author | bsmith@81767d24-ef19-dc11-ae90-00e081727c95 |
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date | Mon, 19 Dec 2022 07:42:12 +0000 |
parents | e62fc9b3b09c |
children | 585d0053b766 |
rev | line source |
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1 /* Dynamic Windows C++ Language Bindings |
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2 * Copyright 2022 Brian Smith |
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3 * Requires a C++11 compatible compiler. |
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4 */ |
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5 |
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6 #ifndef _HPP_DW |
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7 #define _HPP_DW |
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8 #include <dw.h> |
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9 |
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10 // Attempt to support compilers without nullptr type literal |
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11 #if __cplusplus >= 201103L |
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12 #define DW_NULL nullptr |
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13 #else |
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14 #define DW_NULL NULL |
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15 #endif |
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16 |
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17 // Attempt to allow compilation on GCC older than 4.7 |
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18 #if defined(__GNUC__) && (__GNuC__ < 5 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)) |
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19 #define override |
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20 #endif |
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21 |
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22 namespace DW |
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23 { |
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24 |
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25 // Base handle class which allows opaque access to |
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26 // The base system handles |
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27 class Handle |
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28 { |
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29 protected: |
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30 void *handle; |
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31 void SetHandle(void *newhandle) { handle = newhandle; } |
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32 public: |
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33 void *GetHandle() { return handle; } |
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34 }; |
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35 |
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36 // Widget class allows packing and style |
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37 class Widget : public Handle |
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38 { |
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39 protected: |
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40 void SetHWND(HWND newhwnd) { |
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41 hwnd = newhwnd; |
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42 SetHandle(reinterpret_cast<void *>(newhwnd)); |
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43 // Save the C++ class pointer in the window data for later |
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44 dw_window_set_data(hwnd, "_dw_classptr", this); |
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45 } |
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46 HWND hwnd; |
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47 public: |
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48 HWND GetHWND() { return hwnd; } |
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49 int Unpack() { return dw_box_unpack(hwnd); } |
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50 void SetStyle(unsigned long style, unsigned long mask) { dw_window_set_style(hwnd, style, mask); } |
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51 void SetTooltip(char *bubbletext) { dw_window_set_tooltip(hwnd, bubbletext); } |
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52 }; |
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53 |
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54 // Box class is a packable object |
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55 class Box : public Widget |
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56 { |
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57 public: |
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58 void PackStart(Widget *item, int width, int height, int hsize, int vsize, int pad) { |
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59 dw_box_pack_start(hwnd, item ? item->GetHWND() : DW_NOHWND, width, height, hsize, vsize, pad); } |
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60 void PackEnd(Widget *item, int width, int height, int hsize, int vsize, int pad) { |
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61 dw_box_pack_end(hwnd, item ? item->GetHWND() : DW_NOHWND, width, height, hsize, vsize, pad); } |
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62 void PackAtIndex(Widget *item, int index, int width, int height, int hsize, int vsize, int pad) { |
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63 dw_box_pack_at_index(hwnd, item ? item->GetHWND() : DW_NOHWND, index, width, height, hsize, vsize, pad); } |
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64 Widget *UnpackAtIndex(int index) { HWND widget = dw_box_unpack_at_index(hwnd, index); |
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65 void *classptr = widget ? dw_window_get_data(widget, "_dw_classptr") : DW_NULL; |
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66 return reinterpret_cast<Widget *>(classptr); |
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67 } |
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68 }; |
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69 |
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70 // TODO: Find a way to implement this cross platform... |
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71 // That way we can skip adding unused signal handlers |
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72 #define IsOverridden(a, b) true |
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73 |
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74 // Top-level window class is packable |
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75 class Window : public Box |
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76 { |
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77 private: |
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78 void Setup() { |
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79 if(IsOverridden(Window::OnConfigure, this)) |
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80 dw_signal_connect(hwnd, DW_SIGNAL_DELETE, DW_SIGNAL_FUNC(_OnDelete), this); |
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81 if(IsOverridden(Window::OnConfigure, this)) |
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82 dw_signal_connect(hwnd, DW_SIGNAL_CONFIGURE, DW_SIGNAL_FUNC(_OnConfigure), this); |
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83 } |
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84 static int _OnDelete(HWND window, void *data) { return reinterpret_cast<Window *>(data)->OnDelete(); } |
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85 static int _OnConfigure(HWND window, int width, int height, void *data) { return reinterpret_cast<Window *>(data)->OnConfigure(width, height); } |
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86 public: |
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87 // Constructors |
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88 Window(HWND owner, const char *title, unsigned long style) { SetHWND(dw_window_new(owner, title, style)); Setup(); } |
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89 Window(const char *title, unsigned long style) { SetHWND(dw_window_new(HWND_DESKTOP, title, style)); Setup(); } |
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90 Window(unsigned long style) { SetHWND(dw_window_new(HWND_DESKTOP, "", style)); Setup(); } |
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91 Window(const char *title) { SetHWND(dw_window_new(HWND_DESKTOP, title, DW_FCF_SYSMENU | DW_FCF_TITLEBAR | |
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92 DW_FCF_TASKLIST | DW_FCF_SIZEBORDER | DW_FCF_MINMAX)); Setup(); } |
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93 Window() { SetHWND(dw_window_new(HWND_DESKTOP, "", DW_FCF_SYSMENU | DW_FCF_TITLEBAR | |
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94 DW_FCF_TASKLIST | DW_FCF_SIZEBORDER | DW_FCF_MINMAX)); Setup(); } |
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95 |
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96 // User functions |
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97 void SetText(const char *text) { dw_window_set_text(hwnd, text); } |
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98 void SetSize(unsigned long width, unsigned long height) { dw_window_set_size(hwnd, width, height); } |
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99 int Show() { return dw_window_show(hwnd); } |
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100 int Hide() { return dw_window_hide(hwnd); } |
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101 void SetGravity(int horz, int vert) { dw_window_set_gravity(hwnd, horz, vert); } |
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102 int Minimize() { return dw_window_minimize(hwnd); } |
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103 int Raise() { return dw_window_raise(hwnd); } |
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104 int Lower() { return dw_window_lower(hwnd); } |
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105 protected: |
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106 // Our signal handler functions to be overriden... |
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107 // If they are not overridden and an event is generated, remove the unused handler |
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108 virtual int OnDelete() { dw_signal_disconnect_by_name(hwnd, DW_SIGNAL_DELETE); return FALSE; } |
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109 virtual int OnConfigure(int width, int height) { dw_signal_disconnect_by_name(hwnd, DW_SIGNAL_CONFIGURE); return FALSE; }; |
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110 }; |
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111 |
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112 // Class for handling static text widget |
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113 class Text : public Widget |
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114 { |
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115 public: |
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116 Text(const char *text, unsigned long id) { SetHWND(dw_text_new(text, id)); } |
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117 Text(const char *text) { SetHWND(dw_text_new(text, 0)); } |
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118 Text(unsigned long id) { SetHWND(dw_text_new("", id)); } |
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119 Text() { SetHWND(dw_text_new("", 0)); } |
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120 void SetText(const char *text) { dw_window_set_text(hwnd, text); } |
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121 int SetFont(const char *font) { return dw_window_set_font(hwnd, font); } |
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122 char *GetFont() { return dw_window_get_font(hwnd); } |
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123 }; |
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124 |
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125 |
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126 class App |
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127 { |
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128 protected: |
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129 App() { } |
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130 static App *_app; |
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131 public: |
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132 // Allow the code to compile if handicapped on older compilers |
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133 #if __cplusplus >= 201103L |
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134 // Singletons should not be cloneable. |
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135 App(App &other) = delete; |
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136 // Singletons should not be assignable. |
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137 void operator=(const App &) = delete; |
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138 #endif |
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139 // Initialization functions for creating App |
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140 static App *Init() { if(!_app) { _app = new App; dw_init(TRUE, 0, DW_NULL); } return _app; } |
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141 static App *Init(const char *appid) { if(!_app) { _app = new App(); dw_app_id_set(appid, DW_NULL); dw_init(TRUE, 0, DW_NULL); } return _app; } |
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142 static App *Init(const char *appid, const char *appname) { if(!_app) { _app = new App(); dw_app_id_set(appid, appname); dw_init(TRUE, 0, DW_NULL); } return _app; } |
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143 static App *Init(int argc, char *argv[]) { if(!_app) { _app = new App(); dw_init(TRUE, argc, argv); } return _app; } |
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144 static App *Init(int argc, char *argv[], const char *appid) { if(!_app) { _app = new App(); dw_app_id_set(appid, DW_NULL); dw_init(TRUE, argc, argv); } return _app; } |
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145 static App *Init(int argc, char *argv[], const char *appid, const char *appname) { if(!_app) { _app = new App(); dw_app_id_set(appid, appname); dw_init(TRUE, argc, argv); } return _app; } |
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146 |
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147 void Main() { dw_main(); } |
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148 void MainIteration() { dw_main_iteration(); } |
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149 void MainQuit() { dw_main_quit(); } |
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150 void Exit(int exitcode) { dw_exit(exitcode); } |
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151 }; |
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152 |
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153 // Static singleton reference declared outside of the class |
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154 App* App::_app = DW_NULL; |
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155 |
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156 #if 0 |
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157 // Class that allows drawing, either to screen or picture (pixmap) |
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158 class Drawable |
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159 { |
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160 void DrawPoint(int x, int y); |
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161 void DrawLine(int x1, int y1, int x2, int y2); |
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162 void DrawPolygon(int flags, int x[], int y[]); |
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163 void DrawRect(int fill, int x, int y, int width, int height); |
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164 void DrawArc(int flags, int xorigin, int yorigin, int x1, int y1, int x2, int y2); |
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165 void DrawText(int x, int y, std::string text); |
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166 int BitBltStretch(int xdest, int ydest, int width, int height, HWND src, int xsrc, int ysrc, int srcwidth, int srcheight); |
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167 int BitBltStretch(int xdest, int ydest, int width, int height, HPIXMAP srcp, int xsrc, int ysrc, int srcwidth, int srcheight); |
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168 void BitBlt(int xdest, int ydest, int width, int height, HWND src, int xsrc, int ysrc); |
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169 void BitBlt(int xdest, int ydest, int width, int height, HPIXMAP srcp, int xsrc, int ysrc); |
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170 }; |
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171 |
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172 class Render : public Drawable, public Widget |
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173 { |
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174 }; |
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175 |
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176 class Pixmap : public Drawable, public Handle |
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177 { |
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178 }; |
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179 #endif |
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180 |
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181 } /* namespace DW */ |
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182 #endif |