3 string Image_toString(entity me)
7 void Image_configureImage(entity me, string path)
11 void Image_initZoom(entity me)
13 me.zoomOffset = '0.5 0.5 0';
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
19 void Image_draw(entity me)
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);
26 void Image_updateAspect(entity me)
29 if (me.size.x <= 0 || me.size.y <= 0) return;
30 if (me.forcedAspect == 0)
32 me.imgOrigin = '0 0 0';
38 if (me.forcedAspect < 0)
40 if (me.src != "") sz = draw_PictureSize(me.src);
41 if (sz.x <= 0 || sz.y <= 0)
43 // image is broken or doesn't exist, set the size for the placeholder image
51 asp = me.forcedAspect;
54 if (me.forcedAspect <= -2)
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))
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;
68 if (me.size.x > asp * me.size.y)
70 // x too large, so center x-wise
71 me.imgSize = eY + eX * (me.size.y * asp / me.size.x);
75 // y too large, so center y-wise
76 me.imgSize = eX + eY * (me.size.x / (asp * me.size.y));
85 me.zoomMax = me.zoomBox;
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;
94 if (me.zoomMax > 0 && me.zoomFactor > me.zoomMax) me.zoomFactor = me.zoomMax;
95 if (me.zoomFactor) me.imgSize = me.imgSize * me.zoomFactor;
97 if (me.imgSize.x > 1 || me.imgSize.y > 1)
99 if (me.zoomSnapToTheBox)
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);
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);
109 me.zoomOffset_x = bound(0, me.zoomOffset.x, 1);
110 me.zoomOffset_y = bound(0, me.zoomOffset.y, 1);
115 me.zoomOffset = '0.5 0.5 0';
118 me.imgOrigin_x = 0.5 - me.zoomOffset.x * me.imgSize.x;
119 me.imgOrigin_y = 0.5 - me.zoomOffset.y * me.imgSize.y;
121 float Image_drag_setStartPos(entity me, vector coords)
123 // if(me.imgSize_x > 1 || me.imgSize_y > 1) // check disabled: mousewheel zoom may start from a non-zoomed-in image
125 me.start_zoomOffset = me.zoomOffset;
126 me.start_coords = coords;
130 float Image_drag(entity me, vector coords)
132 if (me.imgSize.x > 1 || me.imgSize.y > 1)
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;
140 void Image_setZoom(entity me, float z, float atMousePosition)
142 float prev_zoomFactor;
143 prev_zoomFactor = me.zoomFactor;
144 if (z < 0) // multiply by the current zoomFactor (but can also snap to real dimensions or to box)
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)
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);
156 else if (realSize_in_the_middle)
158 me.zoomFactor = 1; // snap to real dimensions
160 else if (boxSize_in_the_middle)
162 me.zoomFactor = me.zoomBox; // snap to box
165 else if (z == 0) // reset (no zoom)
167 if (me.zoomBox > 0) me.zoomFactor = me.zoomBox;
168 else me.zoomFactor = 1;
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)
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).
190 void Image_resizeNotify(entity me, vector relOrigin, vector relSize, vector absOrigin, vector absSize)
192 SUPER(Image).resizeNotify(me, relOrigin, relSize, absOrigin, absSize);