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implement android.widget.ImageButton using GtkButton

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This commit is contained in:
Julian Winkler
2023-08-22 13:53:52 +02:00
parent f2e71cd50f
commit f9a85017c1
5 changed files with 306 additions and 1 deletions
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64
src/api-impl-jni/widgets/android_widget_ImageButton.c Normal file
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#include <gtk/gtk.h>
#include "../defines.h"
#include "../util.h"
#include "WrapperWidget.h"
#include "../generated_headers/android_widget_ImageButton.h"
JNIEXPORT jlong JNICALL Java_android_widget_ImageButton_native_1constructor(JNIEnv *env, jobject this, jobject context, jobject attrs)
{
GtkWidget *wrapper = g_object_ref(wrapper_widget_new());
GtkWidget *button = gtk_button_new();
GtkWidget *image = gtk_picture_new_for_resource("/org/gtk/libgtk/icons/16x16/status/image-missing.png"); // show "broken image" icon
gtk_button_set_child(GTK_BUTTON(button), image);
wrapper_widget_set_child(WRAPPER_WIDGET(wrapper), button);
wrapper_widget_set_jobject(WRAPPER_WIDGET(wrapper), env, this);
return _INTPTR(button);
}
JNIEXPORT void JNICALL Java_android_widget_ImageButton_native_1setPixbuf(JNIEnv *env, jobject this, jlong pixbuf_ptr)
{
GtkButton *button = _PTR(_GET_LONG_FIELD(this, "widget"));
GtkWidget *image = gtk_button_get_child(GTK_BUTTON(button));
GdkPixbuf *pixbuf = _PTR(pixbuf_ptr);
gtk_picture_set_pixbuf(GTK_PICTURE(image), pixbuf);
}
struct touch_callback_data {
JavaVM *jvm;
jobject this;
jobject listener;
jmethodID listener_method;
};
static void clicked_cb(GtkWidget *button, struct touch_callback_data *d) {
printf("clicked_cb\n");
JNIEnv *env;
(*d->jvm)->GetEnv(d->jvm, (void**)&env, JNI_VERSION_1_6);
(*env)->CallBooleanMethod(env, d->listener, d->listener_method, d->this);
if((*env)->ExceptionCheck(env))
(*env)->ExceptionDescribe(env);
}
JNIEXPORT void JNICALL Java_android_widget_ImageButton_native_1setOnClickListener(JNIEnv *env, jobject this, jlong widget_ptr, jobject on_click_listener)
{
GtkWidget *button = GTK_WIDGET(_PTR(widget_ptr));
if (!on_click_listener)
return;
JavaVM *jvm;
(*env)->GetJavaVM(env, &jvm);
struct touch_callback_data *callback_data = malloc(sizeof(struct touch_callback_data));
callback_data->jvm = jvm;
callback_data->this = _REF(this);
callback_data->listener = _REF(on_click_listener);
callback_data->listener_method = _METHOD(_CLASS(on_click_listener), "onClick", "(Landroid/view/View;)V");
g_signal_connect(button, "clicked", G_CALLBACK(clicked_cb), callback_data);
}