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LinearLayout: set GtkBox to homogeneous if all child weights are equal

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Real weighted allocation is not supported by GtkBox
This commit is contained in:
Julian Winkler
2024-01-01 12:11:31 +01:00
parent c5b315cb38
commit bf3f595a8c
4 changed files with 31 additions and 1 deletions
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8
src/api-impl-jni/generated_headers/android_widget_LinearLayout.h
View File

@@ -223,6 +223,14 @@ JNIEXPORT void JNICALL Java_android_widget_LinearLayout_setOrientation
JNIEXPORT jint JNICALL Java_android_widget_LinearLayout_getOrientation
(JNIEnv *, jobject);
/*
* Class: android_widget_LinearLayout
* Method: native_setHomogenousWeight
* Signature: (JZ)V
*/
JNIEXPORT void JNICALL Java_android_widget_LinearLayout_native_1setHomogenousWeight
(JNIEnv *, jobject, jlong, jboolean);
#ifdef __cplusplus
}
#endif

6
src/api-impl-jni/widgets/android_widget_LinearLayout.c
View File

@@ -23,6 +23,7 @@ JNIEXPORT jlong JNICALL Java_android_widget_LinearLayout_native_1constructor(JNI
GtkWidget *wrapper = g_object_ref(wrapper_widget_new());
GtkWidget *box = gtk_box_new(orientation ? GTK_ORIENTATION_VERTICAL : GTK_ORIENTATION_HORIZONTAL, 0); // spacing of 0
gtk_box_set_homogeneous(GTK_BOX(box), TRUE);
wrapper_widget_set_child(WRAPPER_WIDGET(wrapper), box);
gtk_widget_set_name(GTK_WIDGET(box), "LinearLayout");
if (!attrs) {
@@ -50,3 +51,8 @@ JNIEXPORT jint JNICALL Java_android_widget_LinearLayout_getOrientation(JNIEnv *e
{
return gtk_orientable_get_orientation(GTK_ORIENTABLE(_PTR(_GET_LONG_FIELD(this, "widget"))));
}
JNIEXPORT void JNICALL Java_android_widget_LinearLayout_native_1setHomogenousWeight(JNIEnv *env, jobject this, jlong widget_ptr, jboolean homogeneous)
{
gtk_box_set_homogeneous(_PTR(widget_ptr), homogeneous);
}

2
src/api-impl/android/view/ViewGroup.java
View File

@@ -54,7 +54,7 @@ public class ViewGroup extends View implements ViewParent, ViewManager {
addView(child, params);
}
private void addViewInternal(View child, int index, LayoutParams params) {
protected void addViewInternal(View child, int index, LayoutParams params) {
if (child.parent == this)
return;
if (!checkLayoutParams(params)) {

16
src/api-impl/android/widget/LinearLayout.java
View File

@@ -2,6 +2,7 @@ package android.widget;
import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
public class LinearLayout extends ViewGroup {
@@ -19,8 +20,23 @@ public class LinearLayout extends ViewGroup {
public native void setOrientation(int orientation);
public native int getOrientation();
protected native void native_setHomogenousWeight(long widget, boolean homogenous);
public void setWeightSum(float weightSum) {}
@Override
protected void addViewInternal(View child, int index, ViewGroup.LayoutParams params) {
super.addViewInternal(child, index, params);
// check if all children have the same weight and set GtkBox to homogeneous if so
float weight = params.weight;
for (int i = 0; i < children.size(); i++) {
if (children.get(i).getLayoutParams().weight != weight) {
weight = 0;
break;
}
}
native_setHomogenousWeight(widget, weight > 0);
}
@Override
public LayoutParams generateLayoutParams(AttributeSet attrs) {
return new LayoutParams(getContext(), attrs);