summaryrefslogtreecommitdiff
path: root/lib/lvgl/examples/widgets/dropdown
diff options
context:
space:
mode:
Diffstat (limited to 'lib/lvgl/examples/widgets/dropdown')
m---------lib/lvgl0
-rw-r--r--lib/lvgl/examples/widgets/dropdown/index.rst20
-rw-r--r--lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_1.c35
-rw-r--r--lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_1.py26
-rw-r--r--lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_2.c39
-rw-r--r--lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_2.py34
-rw-r--r--lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_3.c43
-rw-r--r--lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_3.py53
8 files changed, 250 insertions, 0 deletions
diff --git a/lib/lvgl b/lib/lvgl
deleted file mode 160000
-Subproject 0732400e7b564dd0e7dc4a924619d8e19c5b23a
diff --git a/lib/lvgl/examples/widgets/dropdown/index.rst b/lib/lvgl/examples/widgets/dropdown/index.rst
new file mode 100644
index 00000000..c396361a
--- /dev/null
+++ b/lib/lvgl/examples/widgets/dropdown/index.rst
@@ -0,0 +1,20 @@
+
+Simple Drop down list
+""""""""""""""""""""""
+
+.. lv_example:: widgets/dropdown/lv_example_dropdown_1
+ :language: c
+
+Drop down in four directions
+""""""""""""""""""""""""""""
+
+.. lv_example:: widgets/dropdown/lv_example_dropdown_2
+ :language: c
+
+
+Menu
+""""""""""""
+
+.. lv_example:: widgets/dropdown/lv_example_dropdown_3
+ :language: c
+
diff --git a/lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_1.c b/lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_1.c
new file mode 100644
index 00000000..275e6cf6
--- /dev/null
+++ b/lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_1.c
@@ -0,0 +1,35 @@
+#include "../../lv_examples.h"
+#if LV_USE_DROPDOWN && LV_BUILD_EXAMPLES
+
+static void event_handler(lv_event_t * e)
+{
+ lv_event_code_t code = lv_event_get_code(e);
+ lv_obj_t * obj = lv_event_get_target(e);
+ if(code == LV_EVENT_VALUE_CHANGED) {
+ char buf[32];
+ lv_dropdown_get_selected_str(obj, buf, sizeof(buf));
+ LV_LOG_USER("Option: %s", buf);
+ }
+}
+
+void lv_example_dropdown_1(void)
+{
+
+ /*Create a normal drop down list*/
+ lv_obj_t * dd = lv_dropdown_create(lv_scr_act());
+ lv_dropdown_set_options(dd, "Apple\n"
+ "Banana\n"
+ "Orange\n"
+ "Cherry\n"
+ "Grape\n"
+ "Raspberry\n"
+ "Melon\n"
+ "Orange\n"
+ "Lemon\n"
+ "Nuts");
+
+ lv_obj_align(dd, LV_ALIGN_TOP_MID, 0, 20);
+ lv_obj_add_event_cb(dd, event_handler, LV_EVENT_ALL, NULL);
+}
+
+#endif
diff --git a/lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_1.py b/lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_1.py
new file mode 100644
index 00000000..ad7621e1
--- /dev/null
+++ b/lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_1.py
@@ -0,0 +1,26 @@
+def event_handler(e):
+ code = e.get_code()
+ obj = e.get_target()
+ if code == lv.EVENT.VALUE_CHANGED:
+ option = " "*10 # should be large enough to store the option
+ obj.get_selected_str(option, len(option))
+ # .strip() removes trailing spaces
+ print("Option: \"%s\"" % option.strip())
+
+# Create a normal drop down list
+dd = lv.dropdown(lv.scr_act())
+dd.set_options("\n".join([
+ "Apple",
+ "Banana",
+ "Orange",
+ "Cherry",
+ "Grape",
+ "Raspberry",
+ "Melon",
+ "Orange",
+ "Lemon",
+ "Nuts"]))
+
+dd.align(lv.ALIGN.TOP_MID, 0, 20)
+dd.add_event_cb(event_handler, lv.EVENT.ALL, None)
+
diff --git a/lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_2.c b/lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_2.c
new file mode 100644
index 00000000..77f15791
--- /dev/null
+++ b/lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_2.c
@@ -0,0 +1,39 @@
+#include "../../lv_examples.h"
+#if LV_USE_DROPDOWN && LV_BUILD_EXAMPLES
+
+
+/**
+ * Create a drop down, up, left and right menus
+ */
+void lv_example_dropdown_2(void)
+{
+ static const char * opts = "Apple\n"
+ "Banana\n"
+ "Orange\n"
+ "Melon";
+
+ lv_obj_t * dd;
+ dd = lv_dropdown_create(lv_scr_act());
+ lv_dropdown_set_options_static(dd, opts);
+ lv_obj_align(dd, LV_ALIGN_TOP_MID, 0, 10);
+
+ dd = lv_dropdown_create(lv_scr_act());
+ lv_dropdown_set_options_static(dd, opts);
+ lv_dropdown_set_dir(dd, LV_DIR_BOTTOM);
+ lv_dropdown_set_symbol(dd, LV_SYMBOL_UP);
+ lv_obj_align(dd, LV_ALIGN_BOTTOM_MID, 0, -10);
+
+ dd = lv_dropdown_create(lv_scr_act());
+ lv_dropdown_set_options_static(dd, opts);
+ lv_dropdown_set_dir(dd, LV_DIR_RIGHT);
+ lv_dropdown_set_symbol(dd, LV_SYMBOL_RIGHT);
+ lv_obj_align(dd, LV_ALIGN_LEFT_MID, 10, 0);
+
+ dd = lv_dropdown_create(lv_scr_act());
+ lv_dropdown_set_options_static(dd, opts);
+ lv_dropdown_set_dir(dd, LV_DIR_LEFT);
+ lv_dropdown_set_symbol(dd, LV_SYMBOL_LEFT);
+ lv_obj_align(dd, LV_ALIGN_RIGHT_MID, -10, 0);
+}
+
+#endif
diff --git a/lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_2.py b/lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_2.py
new file mode 100644
index 00000000..49271137
--- /dev/null
+++ b/lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_2.py
@@ -0,0 +1,34 @@
+#
+# Create a drop down, up, left and right menus
+#
+
+opts = "\n".join([
+ "Apple",
+ "Banana",
+ "Orange",
+ "Melon",
+ "Grape",
+ "Raspberry"])
+
+dd = lv.dropdown(lv.scr_act())
+dd.set_options_static(opts)
+dd.align(lv.ALIGN.TOP_MID, 0, 10)
+dd = lv.dropdown(lv.scr_act())
+dd.set_options_static(opts)
+dd.set_dir(lv.DIR.BOTTOM)
+dd.set_symbol(lv.SYMBOL.UP)
+dd.align(lv.ALIGN.BOTTOM_MID, 0, -10)
+
+dd = lv.dropdown(lv.scr_act())
+dd.set_options_static(opts)
+dd.set_dir(lv.DIR.RIGHT)
+dd.set_symbol(lv.SYMBOL.RIGHT)
+dd.align(lv.ALIGN.LEFT_MID, 10, 0)
+
+dd = lv.dropdown(lv.scr_act())
+dd.set_options_static(opts)
+dd.set_dir(lv.DIR.LEFT)
+dd.set_symbol(lv.SYMBOL.LEFT)
+dd.align(lv.ALIGN.RIGHT_MID, -10, 0)
+
+
diff --git a/lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_3.c b/lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_3.c
new file mode 100644
index 00000000..123cb8dd
--- /dev/null
+++ b/lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_3.c
@@ -0,0 +1,43 @@
+#include "../../lv_examples.h"
+#if LV_USE_DROPDOWN && LV_BUILD_EXAMPLES
+
+static void event_cb(lv_event_t * e)
+{
+ lv_obj_t * dropdown = lv_event_get_target(e);
+ char buf[64];
+ lv_dropdown_get_selected_str(dropdown, buf, sizeof(buf));
+ LV_LOG_USER("'%s' is selected", buf);
+}
+
+/**
+ * Create a menu from a drop-down list and show some drop-down list features and styling
+ */
+void lv_example_dropdown_3(void)
+{
+ /*Create a drop down list*/
+ lv_obj_t * dropdown = lv_dropdown_create(lv_scr_act());
+ lv_obj_align(dropdown, LV_ALIGN_TOP_LEFT, 10, 10);
+ lv_dropdown_set_options(dropdown, "New project\n"
+ "New file\n"
+ "Save\n"
+ "Save as ...\n"
+ "Open project\n"
+ "Recent projects\n"
+ "Preferences\n"
+ "Exit");
+
+ /*Set a fixed text to display on the button of the drop-down list*/
+ lv_dropdown_set_text(dropdown, "Menu");
+
+ /*Use a custom image as down icon and flip it when the list is opened*/
+ LV_IMG_DECLARE(img_caret_down)
+ lv_dropdown_set_symbol(dropdown, &img_caret_down);
+ lv_obj_set_style_transform_angle(dropdown, 1800, LV_PART_INDICATOR | LV_STATE_CHECKED);
+
+ /*In a menu we don't need to show the last clicked item*/
+ lv_dropdown_set_selected_highlight(dropdown, false);
+
+ lv_obj_add_event_cb(dropdown, event_cb, LV_EVENT_VALUE_CHANGED, NULL);
+}
+
+#endif
diff --git a/lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_3.py b/lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_3.py
new file mode 100644
index 00000000..07ba0718
--- /dev/null
+++ b/lib/lvgl/examples/widgets/dropdown/lv_example_dropdown_3.py
@@ -0,0 +1,53 @@
+from imagetools import get_png_info, open_png
+
+# Register PNG image decoder
+decoder = lv.img.decoder_create()
+decoder.info_cb = get_png_info
+decoder.open_cb = open_png
+
+# Create an image from the png file
+try:
+ with open('../../assets/img_caret_down.png','rb') as f:
+ png_data = f.read()
+except:
+ print("Could not find img_caret_down.png")
+ sys.exit()
+
+img_caret_down_argb = lv.img_dsc_t({
+ 'data_size': len(png_data),
+ 'data': png_data
+})
+
+def event_cb(e):
+ dropdown = e.get_target()
+ option = " "*64 # should be large enough to store the option
+ dropdown.get_selected_str(option, len(option))
+ print(option.strip() +" is selected")
+#
+# Create a menu from a drop-down list and show some drop-down list features and styling
+#
+
+# Create a drop down list
+dropdown = lv.dropdown(lv.scr_act())
+dropdown.align(lv.ALIGN.TOP_LEFT, 10, 10)
+dropdown.set_options("\n".join([
+ "New project",
+ "New file",
+ "Open project",
+ "Recent projects",
+ "Preferences",
+ "Exit"]))
+
+# Set a fixed text to display on the button of the drop-down list
+dropdown.set_text("Menu")
+
+# Use a custom image as down icon and flip it when the list is opened
+# LV_IMG_DECLARE(img_caret_down)
+dropdown.set_symbol(img_caret_down_argb)
+dropdown.set_style_transform_angle(1800, lv.PART.INDICATOR | lv.STATE.CHECKED)
+
+# In a menu we don't need to show the last clicked item
+dropdown.set_selected_highlight(False)
+
+dropdown.add_event_cb(event_cb, lv.EVENT.VALUE_CHANGED, None)
+
generated by cgit v1.2.3 (git 2.25.1) at 2026-04-30 07:41:32 +0000