2 CLASS(Image) EXTENDS(Item)
3 METHOD(Image, configureImage, void(entity, string))
4 METHOD(Image, draw, void(entity))
5 METHOD(Image, toString, string(entity))
6 METHOD(Image, resizeNotify, void(entity, vector, vector, vector, vector))
7 METHOD(Image, updateAspect, void(entity))
8 METHOD(Image, setZoom, void(entity, float, float))
9 METHOD(Image, drag_setStartPos, float(entity, vector))
10 METHOD(Image, drag, float(entity, vector))
11 ATTRIB(Image, src, string, string_null)
12 ATTRIB(Image, color, vector, '1 1 1')
13 ATTRIB(Image, forcedAspect, float, 0)
14 ATTRIB(Image, zoomFactor, float, 1)
15 ATTRIB(Image, zoomOffset, vector, '0.5 0.5 0')
16 ATTRIB(Image, start_zoomOffset, vector, '0 0 0')
17 ATTRIB(Image, start_coords, vector, '0 0 0')
18 ATTRIB(Image, imgOrigin, vector, '0 0 0')
19 ATTRIB(Image, imgSize, vector, '0 0 0')
24 string Image_toString(entity me)
28 void Image_configureImage(entity me, string path)
31 me.zoomOffset = '0.5 0.5 0';
34 void Image_draw(entity me)
36 if (me.zoomFactor > 1)
38 draw_Picture(me.imgOrigin, me.src, me.imgSize, me.color, 1);
39 if (me.zoomFactor > 1)
42 void Image_updateAspect(entity me)
45 if(me.size_x <= 0 || me.size_y <= 0)
47 if(me.forcedAspect == 0)
49 me.imgOrigin = '0 0 0';
54 if(me.forcedAspect < 0)
57 sz = draw_PictureSize(me.src);
61 asp = me.forcedAspect;
62 if(me.size_x > asp * me.size_y)
64 // x too large, so center x-wise
65 me.imgSize = eY + eX * (me.size_y * asp / me.size_x);
69 // y too large, so center y-wise
70 me.imgSize = eX + eY * (me.size_x / (asp * me.size_y));
74 if (me.zoomFactor > 1)
76 me.zoomOffset_x = bound(0, me.zoomOffset_x, 1);
77 me.zoomOffset_y = bound(0, me.zoomOffset_y, 1);
79 me.imgSize = me.imgSize * me.zoomFactor;
81 me.imgOrigin_x = 0.5 - me.zoomOffset_x * me.imgSize_x;
82 me.imgOrigin_y = 0.5 - me.zoomOffset_y * me.imgSize_y;
85 float Image_drag_setStartPos(entity me, vector coords)
87 //if (me.zoomFactor > 1) //mousewheel zoom may start from a non-zoomed-in image
89 me.start_zoomOffset = me.zoomOffset;
90 me.start_coords = coords;
94 float Image_drag(entity me, vector coords)
96 if (me.zoomFactor > 1)
98 me.zoomOffset = me.start_zoomOffset + (me.start_coords - coords)*(1/me.zoomFactor);
103 void Image_setZoom(entity me, float z, float atMousePosition)
105 float prev_zoomFactor;
106 prev_zoomFactor = me.zoomFactor;
107 if (z < 0) // multiply by the current zoomFactor
109 else if (z == 0) // reset (no zoom)
113 me.zoomFactor = bound(1/16, me.zoomFactor, 16);
114 if (me.zoomFactor <= 1)
115 me.zoomOffset = '0.5 0.5 0';
116 else if (atMousePosition && prev_zoomFactor != me.zoomFactor)
117 me.zoomOffset = me.start_zoomOffset + (me.start_coords - '0.5 0.5 0') * (1/prev_zoomFactor);
120 void Image_resizeNotify(entity me, vector relOrigin, vector relSize, vector absOrigin, vector absSize)
122 SUPER(Image).resizeNotify(me, relOrigin, relSize, absOrigin, absSize);