137 lines
3.0 KiB
C++
137 lines
3.0 KiB
C++
#ifndef MV2DELEMENTFLOORUNDERLAY_H
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#define MV2DELEMENTFLOORUNDERLAY_H
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#include "MV2DElement.h"
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#include "MapViewElementHelper.h"
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#include <Indoor/floorplan/v2/Floorplan.h>
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/**
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* display e.g. a PNG-file below the map [as reference]
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*/
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class MV2DElementFloorUnderlay : public MV2DElement {
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private:
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QImage img;
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std::string tmpFile;
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Floorplan::UnderlayImage* underlay;
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BBox2 bbox;
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int selPoint = -1;
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public:
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/** ctor */
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MV2DElementFloorUnderlay(Floorplan::UnderlayImage* underlay) : underlay(underlay) {
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missing();
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}
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void missing() {
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//img = QImage(QSize(64, 64), QImage::Format_ARGB32);
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//img.fill(0xFF000000);
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img = QImage("://res/icons/cross.png");
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}
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/** get the element's 3D bounding box */
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BBox2 getBoundingBox() const override {
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return bbox;
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}
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/** get the element's minimal distance (nearest whatsoever) to the given point */
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float getMinDistanceXY(const Point2 p) const override {
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(void) p;
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return CFG::SEL_THRESHOLD_SIZE_PX; // we do not know the distance from the image
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}
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virtual void onFocus() override {
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}
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virtual void onUnfocus() override {
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selPoint = -1; // clear selection
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}
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void paint(Painter& p) override {
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(void) p;
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if (tmpFile != underlay->filename) {
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img = QImage(underlay->filename.c_str());
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if (img.size().width() == 0) {
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missing();
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}
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tmpFile = underlay->filename;
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}
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// map coordinates
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float mx1 = underlay->anchor.x;
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float my1 = underlay->anchor.y;
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float mw = img.width() * underlay->scaleX;
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float mh = img.height() * underlay->scaleY;
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float mx2 = mx1+mw;
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float my2 = my1+mh;
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// screen coordinates
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float sx1 = p.s.xms(mx1);
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float sy1 = p.s.yms(my1);
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float sx2 = p.s.xms(mx2);
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float sy2 = p.s.yms(my2);
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float sw = abs(sx1-sx2);
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float sh = abs(sy1-sy2);
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bbox = BBox2();
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bbox.add(Point2(mx1, my1));
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bbox.add(Point2(mx2, my2));
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p.p->drawImage(QRectF(sx1, sy1-sh, sw, sh), img, QRectF(0,0,img.width(),img.height()));
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// selected endpoint(s)?
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if (hasFocus()) {
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p.setPenBrush(Qt::NoPen, CFG::SEL_COLOR);
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if (selPoint == 0) {p.drawCircle(bbox.getMin());}
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}
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// just focused?
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if (hasFocus()) {
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p.setPenBrush(Qt::black, Qt::NoBrush);
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p.drawRect(mx1,my1,mx2,my2);
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p.drawCircle(bbox.getMin());
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}
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}
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virtual void mousePressed(MapView2D* v, const Point2 p) override {
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(void) v;
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(void) p;
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}
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virtual void mouseMove(MapView2D* v, const Point2 _p) override {
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(void) v;
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if (selPoint == -1) {return;}
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const Point2 p = Scaler::snap(_p, CFG::MOVE_SNAP_SIZE_M);
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if (selPoint == 0) {underlay->anchor = p;}
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}
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virtual void mouseReleased(MapView2D* v, const Point2 _p) override {
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// select a new point on mouse-release (more robust than on mouse-press)
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const float t = v->getScaler().sm(CFG::SEL_THRESHOLD_SIZE_PX);
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const float l1 = _p.getDistance(bbox.getMin());
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if (l1 <= t) {selPoint = 0;}
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else {selPoint = -1;}
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}
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virtual bool keyPressEvent(MapView2D* v, QKeyEvent *e) override {
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(void) v;
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(void) e;
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return false;
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}
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};
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#endif // MV2DELEMENTFLOORUNDERLAY_H
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