mirror of
https://gitee.com/jiuyilian/embedded-framework.git
synced 2025-10-24 18:20:15 -04:00
324 lines
8.7 KiB
C
324 lines
8.7 KiB
C
/**
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* @file gtk.c
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*
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*/
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/*********************
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* INCLUDES
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*********************/
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#include "gtkdrv.h"
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#if USE_GTK
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#define _DEFAULT_SOURCE /* needed for usleep() */
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#include <stdlib.h>
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#include <unistd.h>
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#include <gtk/gtk.h>
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#include <gtk/gtkx.h>
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#include <pthread.h>
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#include <time.h>
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#include <sys/time.h>
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/*********************
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* DEFINES
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*********************/
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/**********************
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* TYPEDEFS
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**********************/
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/**********************
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* STATIC PROTOTYPES
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**********************/
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static void gtkdrv_handler(void * p);
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static gboolean mouse_pressed(GtkWidget *widget, GdkEventButton *event,
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gpointer user_data);
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static gboolean mouse_released(GtkWidget *widget, GdkEventButton *event,
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gpointer user_data);
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static gboolean mouse_motion(GtkWidget *widget, GdkEventMotion *event,
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gpointer user_data);
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static gboolean keyboard_press(GtkWidget *widget, GdkEventKey *event,
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gpointer user_data);
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static gboolean keyboard_release(GtkWidget *widget, GdkEventKey *event,
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gpointer user_data);
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static void quit_handler(void);
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/**********************
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* STATIC VARIABLES
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**********************/
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static GtkWidget *window;
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static GtkWidget *event_box;
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static GtkWidget *output_image;
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static GdkPixbuf *pixbuf;
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static unsigned char run_gtk;
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static lv_coord_t mouse_x;
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static lv_coord_t mouse_y;
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static lv_indev_state_t mouse_btn = LV_INDEV_STATE_REL;
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static lv_key_t last_key;
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static lv_indev_state_t last_key_state;
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static uint8_t fb[LV_HOR_RES_MAX * LV_VER_RES_MAX * 3];
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/**********************
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* MACROS
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**********************/
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/**********************
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* GLOBAL FUNCTIONS
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**********************/
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void gtkdrv_init(void)
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{
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// Init GTK
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gtk_init(NULL, NULL);
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/* Or just set up the widgets in code */
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window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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gtk_window_set_default_size(GTK_WINDOW(window), LV_HOR_RES_MAX, LV_VER_RES_MAX);
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gtk_window_set_resizable (GTK_WINDOW(window), FALSE);
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output_image = gtk_image_new();
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event_box = gtk_event_box_new (); // Use event_box around image, otherwise mouse position output in broadway is offset
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gtk_container_add(GTK_CONTAINER (event_box), output_image);
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gtk_container_add(GTK_CONTAINER (window), event_box);
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gtk_widget_add_events(event_box, GDK_BUTTON_PRESS_MASK);
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gtk_widget_add_events(event_box, GDK_SCROLL_MASK);
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gtk_widget_add_events(event_box, GDK_POINTER_MOTION_MASK);
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gtk_widget_add_events(window, GDK_KEY_PRESS_MASK);
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g_signal_connect(window, "destroy", G_CALLBACK(quit_handler), NULL);
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g_signal_connect(event_box, "button-press-event", G_CALLBACK(mouse_pressed), NULL);
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g_signal_connect(event_box, "button-release-event", G_CALLBACK(mouse_released), NULL);
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g_signal_connect(event_box, "motion-notify-event", G_CALLBACK(mouse_motion), NULL);
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g_signal_connect(window, "key_press_event", G_CALLBACK(keyboard_press), NULL);
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g_signal_connect(window, "key_release_event", G_CALLBACK(keyboard_release), NULL);
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gtk_widget_show_all(window);
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pixbuf = gdk_pixbuf_new_from_data((guchar*)fb, GDK_COLORSPACE_RGB, false, 8, LV_HOR_RES_MAX, LV_VER_RES_MAX, LV_HOR_RES_MAX * 3, NULL, NULL);
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if (pixbuf == NULL)
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{
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fprintf(stderr, "Creating pixbuf failed\n");
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return;
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}
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pthread_t thread;
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pthread_create(&thread, NULL, gtkdrv_handler, NULL);
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}
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/*Set in lv_conf.h as `LV_TICK_CUSTOM_SYS_TIME_EXPR`*/
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uint32_t gtkdrv_tick_get(void)
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{
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static uint64_t start_ms = 0;
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if(start_ms == 0) {
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struct timeval tv_start;
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gettimeofday(&tv_start, NULL);
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start_ms = (tv_start.tv_sec * 1000000 + tv_start.tv_usec) / 1000;
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}
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struct timeval tv_now;
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gettimeofday(&tv_now, NULL);
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uint64_t now_ms;
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now_ms = (tv_now.tv_sec * 1000000 + tv_now.tv_usec) / 1000;
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uint32_t time_ms = now_ms - start_ms;
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return time_ms;
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}
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/**
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* Flush a buffer to the marked area
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* @param disp_drv pointer to driver where this function belongs
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* @param area an area where to copy `color_p`
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* @param color_p an array of pixels to copy to the `area` part of the screen
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*/
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void gtkdrv_flush_cb(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t * color_p)
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{
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lv_coord_t hres = disp_drv->rotated == 0 ? disp_drv->hor_res : disp_drv->ver_res;
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lv_coord_t vres = disp_drv->rotated == 0 ? disp_drv->ver_res : disp_drv->hor_res;
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/*Return if the area is out the screen*/
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if(area->x2 < 0 || area->y2 < 0 || area->x1 > hres - 1 || area->y1 > vres - 1) {
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lv_disp_flush_ready(disp_drv);
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return;
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}
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int32_t y;
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int32_t x;
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int32_t p;
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for(y = area->y1; y <= area->y2 && y < disp_drv->ver_res; y++) {
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p = (y * disp_drv->hor_res + area->x1) * 3;
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for(x = area->x1; x <= area->x2 && x < disp_drv->hor_res; x++) {
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fb[p] = color_p->ch.red;
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fb[p + 1] = color_p->ch.green;
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fb[p + 2] = color_p->ch.blue;
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p += 3;
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color_p ++;
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}
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}
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/*IMPORTANT! It must be called to tell the system the flush is ready*/
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lv_disp_flush_ready(disp_drv);
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}
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void gtkdrv_mouse_read_cb(lv_indev_drv_t * drv, lv_indev_data_t * data)
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{
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data->point.x = mouse_x;
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data->point.y = mouse_y;
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data->state = mouse_btn;
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}
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void gtkdrv_keyboard_read_cb(lv_indev_drv_t * drv, lv_indev_data_t * data)
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{
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data->key = last_key;
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data->state = last_key_state;
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}
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/**********************
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* STATIC FUNCTIONS
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**********************/
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static void gtkdrv_handler(void * p)
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{
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while(1) {
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gtk_image_set_from_pixbuf(GTK_IMAGE(output_image), pixbuf); // Test code
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/* Real code should: call gdk_pixbuf_new_from_data () with pointer to frame buffer
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generated by LVGL. See
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https://developer.gnome.org/gdk-pixbuf/2.36/gdk-pixbuf-Image-Data-in-Memory.html
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*/
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gtk_main_iteration_do(FALSE);
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/* Explicitly calling each iteration of the GTK main loop allows LVGL to sync frame
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buffer updates with GTK. It is perhaps also possible to just call gtk_main(), but not
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sure how sync will work then
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*/
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usleep(1*1000);
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}
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}
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static gboolean mouse_pressed(GtkWidget *widget, GdkEventButton *event,
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gpointer user_data)
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{
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mouse_btn = LV_INDEV_STATE_PR;
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// Important, if this function returns TRUE the window cannot be moved around inside the browser
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// when using broadway
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return FALSE;
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}
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static gboolean mouse_released(GtkWidget *widget, GdkEventButton *event,
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gpointer user_data)
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{
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mouse_btn = LV_INDEV_STATE_REL;
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// Important, if this function returns TRUE the window cannot be moved around inside the browser
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// when using broadway
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return FALSE;
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}
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/*****************************************************************************/
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static gboolean mouse_motion(GtkWidget *widget, GdkEventMotion *event,
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gpointer user_data)
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{
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mouse_x = event->x;
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mouse_y = event->y;
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// Important, if this function returns TRUE the window cannot be moved around inside the browser
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// when using broadway
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return FALSE;
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}
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static gboolean keyboard_press(GtkWidget *widget, GdkEventKey *event,
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gpointer user_data)
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{
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uint32_t ascii_key = event->keyval;
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/*Remap some key to LV_KEY_... to manage groups*/
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switch(event->keyval) {
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case GDK_KEY_rightarrow:
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case GDK_KEY_Right:
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ascii_key = LV_KEY_RIGHT;
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break;
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case GDK_KEY_leftarrow:
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case GDK_KEY_Left:
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ascii_key = LV_KEY_LEFT;
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break;
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case GDK_KEY_uparrow:
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case GDK_KEY_Up:
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ascii_key = LV_KEY_UP;
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break;
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case GDK_KEY_downarrow:
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case GDK_KEY_Down:
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ascii_key = LV_KEY_DOWN;
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break;
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case GDK_KEY_Escape:
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ascii_key = LV_KEY_ESC;
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break;
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case GDK_KEY_BackSpace:
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ascii_key = LV_KEY_BACKSPACE;
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break;
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case GDK_KEY_Delete:
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ascii_key = LV_KEY_DEL;
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break;
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case GDK_KEY_Tab:
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ascii_key = LV_KEY_NEXT;
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break;
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case GDK_KEY_KP_Enter:
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case GDK_KEY_Return:
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case '\r':
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ascii_key = LV_KEY_ENTER;
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break;
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default:
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break;
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}
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last_key = ascii_key;
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last_key_state = LV_INDEV_STATE_PR;
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// For other codes refer to https://developer.gnome.org/gdk3/stable/gdk3-Event-Structures.html#GdkEventKey
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return TRUE;
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}
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static gboolean keyboard_release(GtkWidget *widget, GdkEventKey *event,
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gpointer user_data)
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{
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last_key = 0;
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last_key_state = LV_INDEV_STATE_REL;
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// For other codes refer to https://developer.gnome.org/gdk3/stable/gdk3-Event-Structures.html#GdkEventKey
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return TRUE;
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}
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static void quit_handler(void)
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{
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exit(0);
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run_gtk = FALSE;
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}
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#endif /*USE_GTK*/
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