1#include "image.qh" 2 3 string Image_toString(entity me) 4 { 5 return me.src; 6 } 7 void Image_configureImage(entity me, string path) 8 { 9 me.src = path; 10 } 11 void Image_initZoom(entity me) 12 { 13 me.zoomOffset = '0.5 0.5 0'; 14 me.zoomFactor = 1; 15 if (me.forcedAspect == -2) me.zoomBox = -1; // calculate zoomBox at the first updateAspect call 16 if (me.zoomLimitedByTheBox) me.zoomMax = -1; // calculate zoomMax at the first updateAspect call 17 } 18 19 void Image_draw(entity me) 20 { 21 if (me.imgSize.x > 1 || me.imgSize.y > 1) draw_SetClip(); 22 draw_Picture(me.imgOrigin, me.src, me.imgSize, me.color, 1); 23 if (me.imgSize.x > 1 || me.imgSize.y > 1) draw_ClearClip(); 24 SUPER(Image).draw(me); 25 } 26 void Image_updateAspect(entity me) 27 { 28 float asp = 0; 29 if (me.size.x <= 0 || me.size.y <= 0) return; 30 if (me.forcedAspect == 0) 31 { 32 me.imgOrigin = '0 0 0'; 33 me.imgSize = '1 1 0'; 34 } 35 else 36 { 37 vector sz = '0 0 0'; 38 if (me.forcedAspect < 0) 39 { 40 if (me.src != "") sz = draw_PictureSize(me.src); 41 if (sz.x <= 0 || sz.y <= 0) 42 { 43 // image is broken or doesn't exist, set the size for the placeholder image 44 sz.x = me.size.x; 45 sz.y = me.size.y; 46 } 47 asp = sz.x / sz.y; 48 } 49 else 50 { 51 asp = me.forcedAspect; 52 } 53 54 if (me.forcedAspect <= -2) 55 { 56 me.imgSize_x = sz.x / me.size.x; 57 me.imgSize_y = sz.y / me.size.y; 58 if (me.zoomBox < 0 && (me.imgSize.x > 1 || me.imgSize.y > 1)) 59 { 60 // image larger than the containing box, zoom it out to fit into the box 61 if (me.size.x > asp * me.size.y) me.zoomBox = (me.size.y * asp / me.size.x) / me.imgSize.x; 62 else me.zoomBox = (me.size.x / (asp * me.size.y)) / me.imgSize.y; 63 me.zoomFactor = me.zoomBox; 64 } 65 } 66 else 67 { 68 if (me.size.x > asp * me.size.y) 69 { 70 // x too large, so center x-wise 71 me.imgSize = eY + eX * (me.size.y * asp / me.size.x); 72 } 73 else 74 { 75 // y too large, so center y-wise 76 me.imgSize = eX + eY * (me.size.x / (asp * me.size.y)); 77 } 78 } 79 } 80 81 if (me.zoomMax < 0) 82 { 83 if (me.zoomBox > 0) 84 { 85 me.zoomMax = me.zoomBox; 86 } 87 else 88 { 89 if (me.size.x > asp * me.size.y) me.zoomMax = (me.size.y * asp / me.size.x) / me.imgSize.x; 90 else me.zoomMax = (me.size.x / (asp * me.size.y)) / me.imgSize.y; 91 } 92 } 93 94 if (me.zoomMax > 0 && me.zoomFactor > me.zoomMax) me.zoomFactor = me.zoomMax; 95 if (me.zoomFactor) me.imgSize = me.imgSize * me.zoomFactor; 96 97 if (me.imgSize.x > 1 || me.imgSize.y > 1) 98 { 99 if (me.zoomSnapToTheBox) 100 { 101 if (me.imgSize.x > 1) me.zoomOffset_x = bound(0.5 / me.imgSize.x, me.zoomOffset.x, 1 - 0.5 / me.imgSize.x); 102 else me.zoomOffset_x = bound(1 - 0.5 / me.imgSize.x, me.zoomOffset.x, 0.5 / me.imgSize.x); 103 104 if (me.imgSize.y > 1) me.zoomOffset_y = bound(0.5 / me.imgSize.y, me.zoomOffset.y, 1 - 0.5 / me.imgSize.y); 105 else me.zoomOffset_y = bound(1 - 0.5 / me.imgSize.y, me.zoomOffset.y, 0.5 / me.imgSize.y); 106 } 107 else 108 { 109 me.zoomOffset_x = bound(0, me.zoomOffset.x, 1); 110 me.zoomOffset_y = bound(0, me.zoomOffset.y, 1); 111 } 112 } 113 else 114 { 115 me.zoomOffset = '0.5 0.5 0'; 116 } 117 118 me.imgOrigin_x = 0.5 - me.zoomOffset.x * me.imgSize.x; 119 me.imgOrigin_y = 0.5 - me.zoomOffset.y * me.imgSize.y; 120 } 121 float Image_drag_setStartPos(entity me, vector coords) 122 { 123 // if(me.imgSize_x > 1 || me.imgSize_y > 1) // check disabled: mousewheel zoom may start from a non-zoomed-in image 124 { 125 me.start_zoomOffset = me.zoomOffset; 126 me.start_coords = coords; 127 } 128 return 1; 129 } 130 float Image_drag(entity me, vector coords) 131 { 132 if (me.imgSize.x > 1 || me.imgSize.y > 1) 133 { 134 me.zoomOffset_x = me.start_zoomOffset.x + (me.start_coords.x - coords.x) / me.imgSize.x; 135 me.zoomOffset_y = me.start_zoomOffset.y + (me.start_coords.y - coords.y) / me.imgSize.y; 136 me.updateAspect(me); 137 } 138 return 1; 139 } 140 void Image_setZoom(entity me, float newzoom, float atMousePosition) 141 { 142 float prev_zoomFactor; 143 prev_zoomFactor = me.zoomFactor; 144 if (newzoom < 0) // multiply by the current zoomFactor (but can also snap to real dimensions or to box) 145 { 146 me.zoomFactor *= -newzoom; 147 float realSize_in_the_middle, boxSize_in_the_middle; 148 realSize_in_the_middle = ((prev_zoomFactor - 1) * (me.zoomFactor - 1) < 0); 149 boxSize_in_the_middle = (me.zoomBox > 0 && (prev_zoomFactor - me.zoomBox) * (me.zoomFactor - me.zoomBox) < 0); 150 if (realSize_in_the_middle && boxSize_in_the_middle) 151 { 152 // snap to real dimensions or to box 153 if (prev_zoomFactor < me.zoomFactor) me.zoomFactor = min(1, me.zoomBox); 154 else me.zoomFactor = max(1, me.zoomBox); 155 } 156 else if (realSize_in_the_middle) 157 { 158 me.zoomFactor = 1; // snap to real dimensions 159 } 160 else if (boxSize_in_the_middle) 161 { 162 me.zoomFactor = me.zoomBox; // snap to box 163 } 164 } 165 else if (newzoom == 0) // reset (no zoom) 166 { 167 if (me.zoomBox > 0) me.zoomFactor = me.zoomBox; 168 else me.zoomFactor = 1; 169 } 170 else // directly set 171 { 172 me.zoomFactor = newzoom; 173 } 174 me.zoomFactor = bound(1 / 16, me.zoomFactor, 16); 175 if (me.zoomMax > 0 && me.zoomFactor > me.zoomMax) me.zoomFactor = me.zoomMax; 176 if (prev_zoomFactor != me.zoomFactor) 177 { 178 me.zoomTime = time; 179 if (atMousePosition) 180 { 181 me.zoomOffset_x = me.start_zoomOffset.x + (me.start_coords.x - 0.5) / me.imgSize.x; 182 me.zoomOffset_y = me.start_zoomOffset.y + (me.start_coords.y - 0.5) / me.imgSize.y; 183 // updateAspect will reset zoomOffset to '0.5 0.5 0' if 184 // with this zoomFactor the image will not be zoomed in 185 // (updateAspect will check the new values of imgSize). 186 } 187 } 188 me.updateAspect(me); 189 } 190 void Image_resizeNotify(entity me, vector relOrigin, vector relSize, vector absOrigin, vector absSize) 191 { 192 SUPER(Image).resizeNotify(me, relOrigin, relSize, absOrigin, absSize); 193 me.updateAspect(me); 194 } 195