METHOD(Image, toString, string(entity))
METHOD(Image, resizeNotify, void(entity, vector, vector, vector, vector))
METHOD(Image, updateAspect, void(entity))
+ METHOD(Image, setZoom, void(entity, float, float))
+ METHOD(Image, drag_setStartPos, float(entity, vector))
+ METHOD(Image, drag, float(entity, vector))
ATTRIB(Image, src, string, string_null)
ATTRIB(Image, color, vector, '1 1 1')
- ATTRIB(Image, forcedAspect, float, 0)
+ ATTRIB(Image, forcedAspect, float, 0) // special values: -1 keep image aspect ratio, -2 keep image size but bound to the containing box, -3 always keep image size
+ ATTRIB(Image, initialForcedZoom, float, 0) // used by forcedAspect -2 when the image is larger than the containing box
+ ATTRIB(Image, zoomFactor, float, 1)
+ ATTRIB(Image, zoomOffset, vector, '0.5 0.5 0')
+ ATTRIB(Image, zoomTime, float, 0)
+ ATTRIB(Image, zoomLimitedByTheBox, float, 0) // forbids zoom if image would be larger than the containing box
+ ATTRIB(Image, zoomMax, float, 0)
+ ATTRIB(Image, start_zoomOffset, vector, '0 0 0')
+ ATTRIB(Image, start_coords, vector, '0 0 0')
ATTRIB(Image, imgOrigin, vector, '0 0 0')
ATTRIB(Image, imgSize, vector, '0 0 0')
ENDCLASS(Image)
void Image_configureImage(entity me, string path)
{
me.src = path;
+ me.zoomOffset = '0.5 0.5 0';
+ me.zoomFactor = 1;
+ if (me.forcedAspect == -2)
+ me.initialForcedZoom = -1; // calculate initialForcedZoom at the first updateAspect call
+ if (me.zoomLimitedByTheBox)
+ me.zoomMax = -1; // calculate zoomMax at the first updateAspect call
}
void Image_draw(entity me)
{
+ if(me.imgSize_x > 1 || me.imgSize_y > 1)
+ draw_SetClip();
draw_Picture(me.imgOrigin, me.src, me.imgSize, me.color, 1);
+ if(me.imgSize_x > 1 || me.imgSize_y > 1)
+ draw_ClearClip();
SUPER(Image).draw(me);
}
void Image_updateAspect(entity me)
}
else
asp = me.forcedAspect;
- if(me.size_x > asp * me.size_y)
+
+ if(me.forcedAspect <= -2)
{
- // x too large, so center x-wise
- me.imgSize = eY + eX * (me.size_y * asp / me.size_x);
+ me.imgSize_x = sz_x / me.size_x;
+ me.imgSize_y = sz_y / me.size_y;
+ if(me.initialForcedZoom < 0 && (me.imgSize_x > 1 || me.imgSize_y > 1))
+ {
+ // image larger than the containing box, zoom it out to fit into the box
+ if(me.size_x > asp * me.size_y)
+ me.initialForcedZoom = (me.size_y * asp / me.size_x) / me.imgSize_x;
+ else
+ me.initialForcedZoom = (me.size_x / (asp * me.size_y)) / me.imgSize_y;
+ me.zoomFactor = me.initialForcedZoom;
+ }
}
else
{
- // y too large, so center y-wise
- me.imgSize = eX + eY * (me.size_x / (asp * me.size_y));
+ if(me.size_x > asp * me.size_y)
+ {
+ // x too large, so center x-wise
+ me.imgSize = eY + eX * (me.size_y * asp / me.size_x);
+ }
+ else
+ {
+ // y too large, so center y-wise
+ me.imgSize = eX + eY * (me.size_x / (asp * me.size_y));
+ }
}
- me.imgOrigin = '0.5 0.5 0' - 0.5 * me.imgSize;
}
+
+ if (me.zoomMax < 0)
+ {
+ if(me.initialForcedZoom > 0)
+ me.zoomMax = me.initialForcedZoom;
+ else
+ {
+ if(me.size_x > asp * me.size_y)
+ me.zoomMax = (me.size_y * asp / me.size_x) / me.imgSize_x;
+ else
+ me.zoomMax = (me.size_x / (asp * me.size_y)) / me.imgSize_y;
+ }
+ }
+
+ if (me.zoomMax > 0 && me.zoomFactor > me.zoomMax)
+ me.zoomFactor = me.zoomMax;
+ if (me.zoomFactor)
+ me.imgSize = me.imgSize * me.zoomFactor;
+
+ if(me.imgSize_x > 1 || me.imgSize_y > 1)
+ {
+ me.zoomOffset_x = bound(0, me.zoomOffset_x, 1);
+ me.zoomOffset_y = bound(0, me.zoomOffset_y, 1);
+ }
+ else
+ me.zoomOffset = '0.5 0.5 0';
+
+ me.imgOrigin_x = 0.5 - me.zoomOffset_x * me.imgSize_x;
+ me.imgOrigin_y = 0.5 - me.zoomOffset_y * me.imgSize_y;
+}
+float Image_drag_setStartPos(entity me, vector coords)
+{
+ //if(me.imgSize_x > 1 || me.imgSize_y > 1) // check disabled: mousewheel zoom may start from a non-zoomed-in image
+ {
+ me.start_zoomOffset = me.zoomOffset;
+ me.start_coords = coords;
+ }
+ return 1;
+}
+float Image_drag(entity me, vector coords)
+{
+ if(me.imgSize_x > 1 || me.imgSize_y > 1)
+ {
+ me.zoomOffset_x = me.start_zoomOffset_x + (me.start_coords_x - coords_x) / me.imgSize_x;
+ me.zoomOffset_y = me.start_zoomOffset_y + (me.start_coords_y - coords_y) / me.imgSize_y;
+ me.updateAspect(me);
+ }
+ return 1;
+}
+void Image_setZoom(entity me, float z, float atMousePosition)
+{
+ float prev_zoomFactor;
+ prev_zoomFactor = me.zoomFactor;
+ if (z < 0) // multiply by the current zoomFactor
+ {
+ me.zoomFactor *= -z;
+ float one_in_the_middle, initialZoom_in_the_middle;
+ one_in_the_middle = ((prev_zoomFactor - 1) * (me.zoomFactor - 1) < 0);
+ initialZoom_in_the_middle = (me.initialForcedZoom > 0 && (prev_zoomFactor - me.initialForcedZoom) * (me.zoomFactor - me.initialForcedZoom) < 0);
+ if (one_in_the_middle && initialZoom_in_the_middle)
+ {
+ // snap to real dimensions or to box
+ if (prev_zoomFactor < me.zoomFactor)
+ me.zoomFactor = min(1, me.initialForcedZoom);
+ else
+ me.zoomFactor = max(1, me.initialForcedZoom);
+ }
+ else if (one_in_the_middle)
+ me.zoomFactor = 1; // snap to real dimensions
+ else if (initialZoom_in_the_middle)
+ me.zoomFactor = me.initialForcedZoom; // snap to box
+ }
+ else if (z == 0) // reset (no zoom)
+ {
+ if (me.initialForcedZoom > 0)
+ me.zoomFactor = me.initialForcedZoom;
+ else
+ me.zoomFactor = 1;
+ }
+ else // directly set
+ me.zoomFactor = z;
+ me.zoomFactor = bound(1/16, me.zoomFactor, 16);
+ if (me.zoomFactor > me.zoomMax)
+ me.zoomFactor = me.zoomMax;
+ if (prev_zoomFactor != me.zoomFactor)
+ {
+ me.zoomTime = time;
+ if (atMousePosition)
+ {
+ me.zoomOffset_x = me.start_zoomOffset_x + (me.start_coords_x - 0.5) / me.imgSize_x;
+ me.zoomOffset_y = me.start_zoomOffset_y + (me.start_coords_y - 0.5) / me.imgSize_y;
+ // updateAspect will reset however zoomOffset to '0.5 0.5 0' if with
+ // this zoomFactor the image will not be zoomed (updateAspect will check
+ // the new values of imgSize).
+ }
+ }
+ me.updateAspect(me);
}
void Image_resizeNotify(entity me, vector relOrigin, vector relSize, vector absOrigin, vector absSize)
{
projects / xonotic / xonotic-data.pk3dir.git / blobdiff