67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
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#include "GUI.hpp"
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/** Image
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* The Image-class draws the bitmap that it get from the Shared Memory.
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* @param *buf: A pointer to the bitmap, that the image-class has to draw. Three chars are needed to get the RGB-value of a pixel, so the size equals window_height * window_width * 3.
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*/
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class Image : public Fl_Widget {
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uchar *buf;
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//Function to draw a bitmap
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void draw() {
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fl_draw_image(buf, x(), y(), w(), h());
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}
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/** The constructor of the image class, get additional
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* @param x: The mouse-position on the x-axis.
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* @param y: The mouse-position on the y-axis:
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* @param w: The width of a single pixel,
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* @param h: The height of a single pixel.
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*/
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public:
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Image(int x, int y, int w, int h) :
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Fl_Widget(x, y, w, h, 0) {
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buf = new uchar[w * h * 3];
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/*Just an example.*/
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for (int i = 0; i < h; i++) {
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for (int j = 0; j < w; j++) {
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buf[(j + (i * w)) * 3 + 1] = 0xff;
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}
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}
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}
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/*A function to change the colors of the image-class. It reads the colors from the Shared Memory-Class*/
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void change_color() {
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for (int i = 0; i < h(); i++) {
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for (int j = 0; j < w(); j++) {
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vkvm::Color c = vkvm::getPixel(j,i);
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buf[(i * w() + j) * 3 + 0] = c.getRed();
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buf[(i * w() + j) * 3 + 1] = c.getGreen();
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buf[(i * w() + j) * 3 + 2] = c.getBlue();
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}
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}
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}
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};
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/*Functions to refresh the image.*/
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void refresh_image(void *pointer) {
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((Image *) pointer)->redraw();
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Fl::repeat_timeout(0.5, refresh_image, pointer);//nach 0.5 sec refresh_image(pointer) anrufen. Here pointer ist wie ein Parameter
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}
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void change_color(void *pointer) {
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((Image *) pointer)->change_color();
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Fl::repeat_timeout(1, change_color, pointer);
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}
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void refresh_statusbar(void *pointer) {
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((Statusbar **) pointer)[0]->refresh_label();
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Fl::repeat_timeout(0.5, refresh_statusbar, pointer);
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}
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void change_status(void *pointer) {
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((Statusbar **) pointer)[0]->change_text();
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Fl::repeat_timeout(1, change_status, pointer);
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}
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