Mercurial > dwindows
annotate dw.hpp @ 2874:585d0053b766
C++: Implement buttons, images, render, pixmap and boxes.
author | bsmith@81767d24-ef19-dc11-ae90-00e081727c95 |
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date | Mon, 19 Dec 2022 13:57:43 +0000 |
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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 int SetColor(unsigned long fore, unsigned long back) { return dw_window_set_color(hwnd, fore, back); } |
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53 }; |
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54 |
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55 // Box class is a packable object |
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56 class Boxes : public Widget |
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57 { |
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58 public: |
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59 // User functions |
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60 void PackStart(Widget *item, int width, int height, int hsize, int vsize, int pad) { |
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61 dw_box_pack_start(hwnd, item ? item->GetHWND() : DW_NOHWND, width, height, hsize, vsize, pad); } |
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62 void PackEnd(Widget *item, int width, int height, int hsize, int vsize, int pad) { |
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63 dw_box_pack_end(hwnd, item ? item->GetHWND() : DW_NOHWND, width, height, hsize, vsize, pad); } |
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64 void PackAtIndex(Widget *item, int index, int width, int height, int hsize, int vsize, int pad) { |
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65 dw_box_pack_at_index(hwnd, item ? item->GetHWND() : DW_NOHWND, index, width, height, hsize, vsize, pad); } |
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66 Widget *UnpackAtIndex(int index) { HWND widget = dw_box_unpack_at_index(hwnd, index); |
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67 void *classptr = widget ? dw_window_get_data(widget, "_dw_classptr") : DW_NULL; |
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68 return reinterpret_cast<Widget *>(classptr); |
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69 } |
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70 }; |
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71 |
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72 class Box : public Boxes |
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73 { |
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74 // Constructors |
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75 Box(int type, int pad) { SetHWND(dw_box_new(type, pad)); } |
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76 Box(int type) { SetHWND(dw_box_new(type, 0)); } |
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77 }; |
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78 |
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79 // Special scrollable box |
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80 class ScrollBox : public Boxes |
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81 { |
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82 public: |
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83 // Constructors |
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84 ScrollBox(int type, int pad) { SetHWND(dw_scrollbox_new(type, pad)); } |
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85 ScrollBox(int type) { SetHWND(dw_scrollbox_new(type, 0)); } |
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86 |
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87 // User functions |
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88 int GetRange(int orient) { return dw_scrollbox_get_range(hwnd, orient); } |
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89 int GetPos(int orient) { return dw_scrollbox_get_pos(hwnd, orient); } |
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90 }; |
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91 |
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92 // TODO: Find a way to implement this cross platform... |
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93 // That way we can skip adding unused signal handlers |
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94 #define IsOverridden(a, b) true |
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95 |
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96 // Top-level window class is packable |
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97 class Window : public Boxes |
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98 { |
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99 private: |
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100 void Setup() { |
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101 if(IsOverridden(Window::OnDelete, this)) |
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102 dw_signal_connect(hwnd, DW_SIGNAL_DELETE, DW_SIGNAL_FUNC(_OnDelete), this); |
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103 if(IsOverridden(Window::OnConfigure, this)) |
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104 dw_signal_connect(hwnd, DW_SIGNAL_CONFIGURE, DW_SIGNAL_FUNC(_OnConfigure), this); |
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105 } |
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106 static int _OnDelete(HWND window, void *data) { return reinterpret_cast<Window *>(data)->OnDelete(); } |
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107 static int _OnConfigure(HWND window, int width, int height, void *data) { return reinterpret_cast<Window *>(data)->OnConfigure(width, height); } |
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108 public: |
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109 // Constructors |
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110 Window(HWND owner, const char *title, unsigned long style) { SetHWND(dw_window_new(owner, title, style)); Setup(); } |
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111 Window(const char *title, unsigned long style) { SetHWND(dw_window_new(HWND_DESKTOP, title, style)); Setup(); } |
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112 Window(unsigned long style) { SetHWND(dw_window_new(HWND_DESKTOP, "", style)); Setup(); } |
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113 Window(const char *title) { SetHWND(dw_window_new(HWND_DESKTOP, title, DW_FCF_SYSMENU | DW_FCF_TITLEBAR | |
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114 DW_FCF_TASKLIST | DW_FCF_SIZEBORDER | DW_FCF_MINMAX)); Setup(); } |
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115 Window() { SetHWND(dw_window_new(HWND_DESKTOP, "", DW_FCF_SYSMENU | DW_FCF_TITLEBAR | |
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116 DW_FCF_TASKLIST | DW_FCF_SIZEBORDER | DW_FCF_MINMAX)); Setup(); } |
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117 |
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118 // User functions |
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119 void SetText(const char *text) { dw_window_set_text(hwnd, text); } |
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120 char *GetText() { return dw_window_get_text(hwnd); } |
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121 void SetSize(unsigned long width, unsigned long height) { dw_window_set_size(hwnd, width, height); } |
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122 int Show() { return dw_window_show(hwnd); } |
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123 int Hide() { return dw_window_hide(hwnd); } |
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124 void SetGravity(int horz, int vert) { dw_window_set_gravity(hwnd, horz, vert); } |
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125 int Minimize() { return dw_window_minimize(hwnd); } |
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126 int Raise() { return dw_window_raise(hwnd); } |
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127 int Lower() { return dw_window_lower(hwnd); } |
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128 protected: |
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129 // Our signal handler functions to be overriden... |
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130 // If they are not overridden and an event is generated, remove the unused handler |
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131 virtual int OnDelete() { dw_signal_disconnect_by_name(hwnd, DW_SIGNAL_DELETE); return FALSE; } |
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132 virtual int OnConfigure(int width, int height) { dw_signal_disconnect_by_name(hwnd, DW_SIGNAL_CONFIGURE); return FALSE; }; |
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133 }; |
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134 |
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135 // Base class for several types of buttons |
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136 class Buttons : public Widget |
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137 { |
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138 private: |
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139 static int _OnClicked(HWND window, void *data) { return reinterpret_cast<Buttons *>(data)->OnClicked(); } |
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140 protected: |
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141 void Setup() { |
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142 if(IsOverridden(Window::OnClicked, this)) |
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143 dw_signal_connect(hwnd, DW_SIGNAL_CLICKED, DW_SIGNAL_FUNC(_OnClicked), this); |
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144 } |
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145 // Our signal handler functions to be overriden... |
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146 // If they are not overridden and an event is generated, remove the unused handler |
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147 virtual int OnClicked() { dw_signal_disconnect_by_name(hwnd, DW_SIGNAL_CLICKED); return FALSE; } |
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148 }; |
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149 |
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150 // Text based button |
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151 class TextButton : public Buttons |
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152 { |
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153 public: |
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154 // User functions |
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155 void SetText(const char *text) { dw_window_set_text(hwnd, text); } |
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156 char *GetText() { return dw_window_get_text(hwnd); } |
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157 }; |
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158 |
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159 class Button : public TextButton |
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160 { |
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161 public: |
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162 // Constructors |
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163 Button(const char *text, unsigned long id) { SetHWND(dw_button_new(text, id)); Setup(); } |
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164 Button(unsigned long id) { SetHWND(dw_button_new("", id)); Setup(); } |
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165 Button(const char *text) { SetHWND(dw_button_new(text, 0)); Setup(); } |
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166 Button() { SetHWND(dw_button_new("", 0)); Setup(); } |
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167 }; |
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168 |
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169 // Image based button |
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170 class BitmapButton : public Buttons |
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171 { |
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172 public: |
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173 // Constructors |
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174 BitmapButton(const char *text, unsigned long id) { SetHWND(dw_bitmapbutton_new(text, id)); Setup(); } |
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175 BitmapButton(unsigned long id) { SetHWND(dw_bitmapbutton_new("", id)); Setup(); } |
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176 BitmapButton(const char *text, unsigned long id, const char *file) { SetHWND(dw_bitmapbutton_new_from_file(text, id, file)); Setup(); } |
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177 BitmapButton(const char *text, const char *file) { SetHWND(dw_bitmapbutton_new_from_file(text, 0, file)); Setup(); } |
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178 BitmapButton(const char *text, unsigned long id, const char *data, int len) { SetHWND(dw_bitmapbutton_new_from_data(text, id, data, len)); Setup(); } |
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179 BitmapButton(const char *text, const char *data, int len) { SetHWND(dw_bitmapbutton_new_from_data(text, 0, data, len)); Setup(); } |
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180 }; |
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181 |
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182 class CheckBoxes : public TextButton |
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183 { |
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184 // User functions |
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185 void Set(int value) { dw_checkbox_set(hwnd, value); } |
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186 int Get() { return dw_checkbox_get(hwnd); } |
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187 }; |
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188 |
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189 class CheckBox : public CheckBoxes |
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190 { |
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191 // Constructors |
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192 CheckBox(const char *text, unsigned long id) { SetHWND(dw_checkbox_new(text, id)); Setup(); } |
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193 CheckBox(unsigned long id) { SetHWND(dw_checkbox_new("", id)); Setup(); } |
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194 CheckBox(const char *text) { SetHWND(dw_checkbox_new(text, 0)); Setup(); } |
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195 CheckBox() { SetHWND(dw_checkbox_new("", 0)); Setup(); } |
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196 }; |
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197 |
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198 class RadioButton : public CheckBoxes |
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199 { |
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200 // Constructors |
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201 RadioButton(const char *text, unsigned long id) { SetHWND(dw_radiobutton_new(text, id)); Setup(); } |
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202 RadioButton(unsigned long id) { SetHWND(dw_radiobutton_new("", id)); Setup(); } |
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203 RadioButton(const char *text) { SetHWND(dw_radiobutton_new(text, 0)); Setup(); } |
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204 RadioButton() { SetHWND(dw_radiobutton_new("", 0)); Setup(); } |
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205 }; |
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206 |
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207 // Class for handling static text widget |
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208 class Text : public Widget |
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209 { |
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210 public: |
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211 // Constructors |
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212 Text(const char *text, unsigned long id) { SetHWND(dw_text_new(text, id)); } |
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213 Text(const char *text) { SetHWND(dw_text_new(text, 0)); } |
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214 Text(unsigned long id) { SetHWND(dw_text_new("", id)); } |
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215 Text() { SetHWND(dw_text_new("", 0)); } |
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216 |
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217 // User functions |
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218 void SetText(const char *text) { dw_window_set_text(hwnd, text); } |
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219 int SetFont(const char *font) { return dw_window_set_font(hwnd, font); } |
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220 char *GetFont() { return dw_window_get_font(hwnd); } |
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221 }; |
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222 |
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223 // Class for handing static image widget |
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224 class Bitmap : public Widget |
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225 { |
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226 public: |
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227 // Constructors |
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228 Bitmap(const char *data, int len) { SetHWND(dw_bitmap_new(0)); dw_window_set_bitmap_from_data(hwnd, 0, data, len); } |
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229 Bitmap(const char *file) { SetHWND(dw_bitmap_new(0)); dw_window_set_bitmap(hwnd, 0, file); } |
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230 Bitmap(unsigned long id) { SetHWND(dw_bitmap_new(id)); } |
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231 Bitmap() { SetHWND(dw_bitmap_new(0)); } |
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232 |
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233 // User functions |
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234 void Set(unsigned long id) { dw_window_set_bitmap(hwnd, id, DW_NULL); } |
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235 void Set(const char *file) { dw_window_set_bitmap(hwnd, 0, file); } |
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236 void Set(const char *data, int len) { dw_window_set_bitmap_from_data(hwnd, 0, data, len); } |
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237 }; |
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238 |
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239 // Forward declare these so our Drawable abstract class can reference |
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240 class Render; |
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241 class Pixmap; |
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242 |
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243 // Abstract class that defines drawing, either to screen or picture (pixmap) |
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244 class Drawable |
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245 { |
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246 public: |
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247 virtual void DrawPoint(int x, int y) = 0; |
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248 virtual void DrawLine(int x1, int y1, int x2, int y2) = 0; |
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249 virtual void DrawPolygon(int flags, int npoints, int x[], int y[]) = 0; |
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250 virtual void DrawRect(int fill, int x, int y, int width, int height) = 0; |
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251 virtual void DrawArc(int flags, int xorigin, int yorigin, int x1, int y1, int x2, int y2) = 0; |
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252 virtual void DrawText(int x, int y, const char *text) = 0; |
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253 virtual int BitBltStretch(int xdest, int ydest, int width, int height, Render *src, int xsrc, int ysrc, int srcwidth, int srcheight) = 0; |
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254 virtual int BitBltStretch(int xdest, int ydest, int width, int height, Pixmap *src, int xsrc, int ysrc, int srcwidth, int srcheight) = 0; |
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255 virtual void BitBlt(int xdest, int ydest, int width, int height, Render *src, int xsrc, int ysrc) = 0; |
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256 virtual void BitBlt(int xdest, int ydest, int width, int height, Pixmap *srcp, int xsrc, int ysrc) = 0; |
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257 void SetColor(unsigned long fore, unsigned long back) { dw_color_foreground_set(fore); dw_color_background_set(back); } |
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258 void SetBackgroundColor(unsigned long back) { dw_color_background_set(back); } |
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259 void SetForegroundColor(unsigned long fore) { dw_color_foreground_set(fore); } |
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260 }; |
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261 |
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262 class Render : public Drawable, public Widget |
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263 { |
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264 private: |
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265 void Setup() { |
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266 if(IsOverridden(Window::OnExpose, this)) |
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267 dw_signal_connect(hwnd, DW_SIGNAL_EXPOSE, DW_SIGNAL_FUNC(_OnExpose), this); |
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268 if(IsOverridden(Window::OnConfigure, this)) |
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269 dw_signal_connect(hwnd, DW_SIGNAL_CONFIGURE, DW_SIGNAL_FUNC(_OnConfigure), this); |
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270 } |
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271 static int _OnExpose(HWND window, DWExpose *exp, void *data) { return reinterpret_cast<Render *>(data)->OnExpose(exp); } |
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272 static int _OnConfigure(HWND window, int width, int height, void *data) { return reinterpret_cast<Render *>(data)->OnConfigure(width, height); } |
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273 public: |
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274 // Constructors |
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275 Render(unsigned long id) { SetHWND(dw_render_new(id)); Setup(); } |
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276 Render() { SetHWND(dw_render_new(0)); Setup(); } |
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277 |
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278 // User functions |
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279 void DrawPoint(int x, int y) { dw_draw_point(hwnd, DW_NULL, x, y); } |
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280 void DrawLine(int x1, int y1, int x2, int y2) { dw_draw_line(hwnd, DW_NULL, x1, y1, x2, y2); } |
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281 void DrawPolygon(int flags, int npoints, int x[], int y[]) { dw_draw_polygon(hwnd, DW_NULL, flags, npoints, x, y); } |
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282 void DrawRect(int fill, int x, int y, int width, int height) { dw_draw_rect(hwnd, DW_NULL, fill, x, y, width, height); } |
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283 void DrawArc(int flags, int xorigin, int yorigin, int x1, int y1, int x2, int y2) { dw_draw_arc(hwnd, DW_NULL, flags, xorigin, yorigin, x1, y1, x2, y2); } |
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284 void DrawText(int x, int y, const char *text) { dw_draw_text(hwnd, DW_NULL, x, y, text); } |
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285 int BitBltStretch(int xdest, int ydest, int width, int height, Render *src, int xsrc, int ysrc, int srcwidth, int srcheight) { |
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286 return dw_pixmap_stretch_bitblt(hwnd, DW_NULL, xdest, ydest, width, height, src ? src->GetHWND() : DW_NOHWND, DW_NULL, xsrc, ysrc, srcwidth, srcheight); |
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287 } |
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288 int BitBltStretch(int xdest, int ydest, int width, int height, Pixmap *src, int xsrc, int ysrc, int srcwidth, int srcheight); |
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289 void BitBlt(int xdest, int ydest, int width, int height, Render *src, int xsrc, int ysrc) { |
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290 return dw_pixmap_bitblt(hwnd, DW_NULL, xdest, ydest, width, height, src ? src->GetHWND() : DW_NOHWND, DW_NULL, xsrc, ysrc); |
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291 } |
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292 void BitBlt(int xdest, int ydest, int width, int height, Pixmap *src, int xsrc, int ysrc); |
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293 int SetFont(const char *fontname) { return dw_window_set_font(hwnd, fontname); } |
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294 char *GetFont() { return dw_window_get_font(hwnd); } |
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295 protected: |
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296 // Our signal handler functions to be overriden... |
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297 // If they are not overridden and an event is generated, remove the unused handler |
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298 virtual int OnExpose(DWExpose *exp) { dw_signal_disconnect_by_name(hwnd, DW_SIGNAL_EXPOSE); return FALSE; } |
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299 virtual int OnConfigure(int width, int height) { dw_signal_disconnect_by_name(hwnd, DW_SIGNAL_CONFIGURE); return FALSE; }; |
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300 }; |
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301 |
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302 class Pixmap : public Drawable, public Handle |
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303 { |
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304 protected: |
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305 void SetHPIXMAP(HPIXMAP newpixmap) { |
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306 hpixmap = newpixmap; |
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307 SetHandle(reinterpret_cast<void *>(newpixmap)); |
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308 } |
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309 HPIXMAP hpixmap; |
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310 public: |
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311 // Constructors |
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312 Pixmap(HWND window, unsigned long width, unsigned long height, int depth) { SetHPIXMAP(dw_pixmap_new(window, width, height, depth)); } |
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313 Pixmap(HWND window, unsigned long width, unsigned long height) { SetHPIXMAP(dw_pixmap_new(window, width, height, 32)); } |
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314 |
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315 // User functions |
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316 HPIXMAP GetHPIXMAP() { return hpixmap; } |
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317 void DrawPoint(int x, int y) { dw_draw_point(DW_NOHWND, hpixmap, x, y); } |
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318 void DrawLine(int x1, int y1, int x2, int y2) { dw_draw_line(DW_NOHWND, hpixmap, x1, y1, x2, y2); } |
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319 void DrawPolygon(int flags, int npoints, int x[], int y[]) { dw_draw_polygon(DW_NOHWND, hpixmap, flags, npoints, x, y); } |
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320 void DrawRect(int fill, int x, int y, int width, int height) { dw_draw_rect(DW_NOHWND, hpixmap, fill, x, y, width, height); } |
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321 void DrawArc(int flags, int xorigin, int yorigin, int x1, int y1, int x2, int y2) { dw_draw_arc(DW_NOHWND, hpixmap, flags, xorigin, yorigin, x1, y1, x2, y2); } |
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322 void DrawText(int x, int y, const char *text) { dw_draw_text(DW_NOHWND, hpixmap, x, y, text); } |
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323 int BitBltStretch(int xdest, int ydest, int width, int height, Render *src, int xsrc, int ysrc, int srcwidth, int srcheight) { |
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324 return dw_pixmap_stretch_bitblt(DW_NOHWND, hpixmap, xdest, ydest, width, height, src ? src->GetHWND() : DW_NOHWND, DW_NULL, xsrc, ysrc, srcwidth, srcheight); |
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325 } |
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326 int BitBltStretch(int xdest, int ydest, int width, int height, Pixmap *src, int xsrc, int ysrc, int srcwidth, int srcheight) { |
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327 return dw_pixmap_stretch_bitblt(DW_NOHWND, hpixmap, xdest, ydest, width, height, DW_NOHWND, src ? src->GetHPIXMAP() : DW_NULL, xsrc, ysrc, srcwidth, srcheight); |
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328 } |
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329 void BitBlt(int xdest, int ydest, int width, int height, Render *src, int xsrc, int ysrc) { |
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330 dw_pixmap_bitblt(DW_NOHWND, hpixmap, xdest, ydest, width, height, src ? src->GetHWND() : DW_NOHWND, DW_NULL, xsrc, ysrc); |
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331 } |
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332 void BitBlt(int xdest, int ydest, int width, int height, Pixmap *src, int xsrc, int ysrc) { |
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333 dw_pixmap_bitblt(DW_NOHWND, hpixmap, xdest, ydest, width, height, DW_NOHWND, src ? src->GetHPIXMAP() : DW_NULL, xsrc, ysrc); |
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334 } |
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335 int SetFont(const char *fontname) { return dw_pixmap_set_font(hpixmap, fontname); } |
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336 }; |
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337 |
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338 // Need to declare these here after Pixmap is defined |
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339 int Render::BitBltStretch(int xdest, int ydest, int width, int height, Pixmap *src, int xsrc, int ysrc, int srcwidth, int srcheight) |
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340 { |
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341 return dw_pixmap_stretch_bitblt(hwnd, DW_NULL, xdest, ydest, width, height, DW_NOHWND, src ? src->GetHPIXMAP() : DW_NULL, xsrc, ysrc, srcwidth, srcheight); |
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342 } |
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343 |
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344 void Render::BitBlt(int xdest, int ydest, int width, int height, Pixmap *src, int xsrc, int ysrc) |
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345 { |
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346 dw_pixmap_bitblt(hwnd, DW_NULL, xdest, ydest, width, height, DW_NOHWND, src ? src->GetHPIXMAP() : DW_NULL, xsrc, ysrc); |
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347 } |
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348 |
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349 class App |
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350 { |
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351 protected: |
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352 App() { } |
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353 static App *_app; |
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354 public: |
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355 // Allow the code to compile if handicapped on older compilers |
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356 #if __cplusplus >= 201103L |
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357 // Singletons should not be cloneable. |
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358 App(App &other) = delete; |
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359 // Singletons should not be assignable. |
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360 void operator=(const App &) = delete; |
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361 #endif |
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362 // Initialization functions for creating App |
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363 static App *Init() { if(!_app) { _app = new App; dw_init(TRUE, 0, DW_NULL); } return _app; } |
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364 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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365 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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366 static App *Init(int argc, char *argv[]) { if(!_app) { _app = new App(); dw_init(TRUE, argc, argv); } return _app; } |
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367 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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368 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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369 |
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370 void Main() { dw_main(); } |
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371 void MainIteration() { dw_main_iteration(); } |
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372 void MainQuit() { dw_main_quit(); } |
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373 void Exit(int exitcode) { dw_exit(exitcode); } |
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374 }; |
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375 |
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376 // Static singleton reference declared outside of the class |
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377 App* App::_app = DW_NULL; |
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378 |
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379 } /* namespace DW */ |
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380 #endif |