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annotate src/video/bwindow/SDL_BView.h @ 5282:8e421890cdb8

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Fixed bug #1117 There's a new event that's always sent when the window changes size, and that event is what the renderers listen for to determine if they need to rebind their context.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 12 Feb 2011 19:02:14 -0800
parents b530ef003506
children
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2011 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #ifndef _SDL_BView_h
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25 #define _SDL_BView_h
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26
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27 /* This is the event handling and graphics update portion of SDL_BWin */
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28
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29 extern "C"
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30 {
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31 #include "../../events/SDL_events_c.h"
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32 };
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33
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34 class SDL_BView:public BView
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35 {
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36 public:
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37 SDL_BView(BRect frame):BView(frame, "SDL View", B_FOLLOW_ALL_SIDES,
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38 (B_WILL_DRAW | B_FRAME_EVENTS))
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39 {
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40 image = NULL;
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41 xoff = yoff = 0;
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42 SetViewColor(0, 0, 0, 0);
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43 SetHighColor(0, 0, 0, 0);
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44 }
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45 virtual ~ SDL_BView()
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46 {
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47 SetBitmap(NULL);
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48 }
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49 /* Set drawing offsets for fullscreen mode */
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50 virtual void SetXYOffset(int x, int y)
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51 {
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52 xoff = x;
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53 yoff = y;
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54 }
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55 virtual void GetXYOffset(int &x, int &y)
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56 {
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57 x = xoff;
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58 y = yoff;
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59 }
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60 /* The view changed size. If it means we're in fullscreen, we
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61 * draw a nice black box in the entire view to get black borders.
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62 */
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63 virtual void FrameResized(float width, float height)
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64 {
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65 BRect bounds;
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66 bounds.top = bounds.left = 0;
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67 bounds.right = width;
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68 bounds.bottom = height;
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69 /* Fill the entire view with black */
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70 FillRect(bounds, B_SOLID_HIGH);
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71 /* And if there's an image, redraw it. */
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72 if (image) {
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73 bounds = image->Bounds();
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74 Draw(bounds);
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75 }
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76 }
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77
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78 /* Drawing portion of this complete breakfast. :) */
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79 virtual void SetBitmap(BBitmap * bitmap)
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80 {
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81 if (image) {
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82 delete image;
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83 }
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84 image = bitmap;
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85 }
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86 virtual void Draw(BRect updateRect)
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87 {
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88 if (image) {
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89 if (xoff || yoff) {
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90 BRect dest;
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91 dest.top = updateRect.top + yoff;
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92 dest.left = updateRect.left + xoff;
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93 dest.bottom = updateRect.bottom + yoff;
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94 dest.right = updateRect.right + xoff;
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95 DrawBitmap(image, updateRect, dest);
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96 } else {
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97 DrawBitmap(image, updateRect, updateRect);
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98 }
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99 }
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100 }
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101 virtual void DrawAsync(BRect updateRect)
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102 {
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103 if (xoff || yoff) {
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104 BRect dest;
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105 dest.top = updateRect.top + yoff;
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106 dest.left = updateRect.left + xoff;
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107 dest.bottom = updateRect.bottom + yoff;
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108 dest.right = updateRect.right + xoff;;
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109 DrawBitmapAsync(image, updateRect, dest);
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110 } else {
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111 DrawBitmapAsync(image, updateRect, updateRect);
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112 }
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113 }
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114
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115 private:
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116 BBitmap * image;
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117 int xoff, yoff;
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118 };
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119
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120 #endif /* _SDL_BView_h */
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121 /* vi: set ts=4 sw=4 expandtab: */