Added image viewer and blerp scaling

2 files changed, 44 insertions, 0 deletions

diff --git a/apps/view/Makefile b/apps/view/Makefile
new file mode 100644
index 0000000..c4c6860
--- /dev/null
+++ b/apps/view/Makefile
@@ -0,0 +1,7 @@
+# MIT License, Copyright (c) 2021 Marvin Borner
+
+NAME = view
+OBJS = main.o
+LIBS = -lgui -lc
+
+include ../generic.mk
diff --git a/apps/view/main.c b/apps/view/main.c
new file mode 100644
index 0000000..20661a7
--- /dev/null
+++ b/apps/view/main.c
@@ -0,0 +1,37 @@
+// MIT License, Copyright (c) 2021 Marvin Borner
+
+#include <def.h>
+#include <libgui/gui.h>
+
+#define SCALING_FACTOR 0.1
+
+static vec2 size = { 800, 800 };
+static const char *path;
+
+static void mousemove(struct gui_event_mouse *event)
+{
+	if (event->scroll) {
+		size = vec2_mul(size, event->scroll < 0 ? SCALING_FACTOR + 1 : 1 - SCALING_FACTOR);
+		gui_fill(event->win, event->widget, GUI_LAYER_FG, COLOR_WHITE);
+		gui_draw_image(event->win, event->widget, GUI_LAYER_FG, vec2(0, 0), size, path);
+		gui_redraw_widget(event->win, event->widget);
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	UNUSED(argc);
+	UNUSED(argv);
+
+	path = "/res/test.png";
+
+	u32 win = gui_new_custom_window(APPNAME, vec2(0, 0), size);
+	u32 canvas = gui_new_widget(win, GUI_MAIN, vec2(0, 0), size);
+	gui_fill(win, canvas, GUI_LAYER_BG, COLOR_WHITE);
+	gui_listen_widget(win, canvas, GUI_LISTEN_MOUSEMOVE, (u32)mousemove);
+
+	gui_redraw_window(win);
+	gui_loop();
+
+	return 0;
+}