From 11cdf24db63af9a22786e81e69247f15cc196b0c Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Fri, 21 May 2021 21:08:43 +0200
Subject: Added paint demo
---
apps/paint/Makefile | 7 ++++++
apps/paint/main.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 69 insertions(+)
create mode 100644 apps/paint/Makefile
create mode 100644 apps/paint/main.c
(limited to 'apps/paint')
diff --git a/apps/paint/Makefile b/apps/paint/Makefile
new file mode 100644
index 0000000..77abe79
--- /dev/null
+++ b/apps/paint/Makefile
@@ -0,0 +1,7 @@
+# MIT License, Copyright (c) 2021 Marvin Borner
+
+NAME = paint
+OBJS = main.o
+LIBS = -lgui -lc
+
+include ../generic.mk
diff --git a/apps/paint/main.c b/apps/paint/main.c
new file mode 100644
index 0000000..50234af
--- /dev/null
+++ b/apps/paint/main.c
@@ -0,0 +1,62 @@
+// MIT License, Copyright (c) 2021 Marvin Borner
+
+#include <libgui/gui.h>
+
+#define COLOR_SIZE 50
+#define TOOLBAR_MARGIN 2
+
+static const u32 colors[] = { COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_YELLOW,
+ COLOR_BLUE, COLOR_MAGENTA, COLOR_CYAN, COLOR_WHITE };
+static u32 current_color = COLOR_BLACK;
+static u32 size = 5;
+
+static void mousemove(struct gui_event_mouse *event)
+{
+ static vec2 last = { 0 };
+
+ if (event->scroll && !(event->scroll == -1 && size <= 1))
+ size += event->scroll;
+
+ if (event->but.left) {
+ gui_draw_line(event->win, event->widget, GUI_LAYER_FG, last, event->pos, size,
+ current_color);
+ gui_redraw_widget(event->win, event->widget);
+ }
+ last = event->pos;
+}
+
+static void color_click(struct gui_event_mouse *event)
+{
+ current_color = colors[event->widget - 2];
+}
+
+int main(void)
+{
+ u32 win;
+ gui_new_window(&win);
+ vec2 win_size = gui_window_size(win);
+
+ u32 toolbar;
+ gui_new_widget(&toolbar, win, vec2(0, 0), vec2(win_size.x, COLOR_SIZE));
+ gui_fill(win, toolbar, GUI_LAYER_BG, COLOR_WHITE);
+
+ u32 color_count = COUNT(colors);
+ for (u32 i = 0; i < color_count; i++) {
+ u32 color;
+ gui_add_widget(&color, win, toolbar, vec2(i * (COLOR_SIZE + TOOLBAR_MARGIN), 0),
+ vec2(COLOR_SIZE, COLOR_SIZE));
+ gui_fill(win, color, GUI_LAYER_FG, colors[i]);
+ gui_draw_border(win, color, GUI_LAYER_FG, 2, COLOR_BLACK);
+ gui_listen_widget(win, color, GUI_LISTEN_MOUSECLICK, (u32)color_click);
+ }
+
+ u32 canvas;
+ gui_new_widget(&canvas, win, vec2(0, COLOR_SIZE),
+ vec2(win_size.x, win_size.y - COLOR_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;
+}
--
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