Java tutorial
/* * This is the source code of Telegram for Android v. 3.x.x. * It is licensed under GNU GPL v. 2 or later. * You should have received a copy of the license in this archive (see LICENSE). * * Copyright Nikolai Kudashov, 2013-2016. */ package org.telegram.ui.Cells; import android.content.Context; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.drawable.Drawable; import android.os.Build; import android.support.v4.content.ContextCompat; import android.text.Layout; import android.text.StaticLayout; import android.text.TextPaint; import android.text.TextUtils; import android.view.MotionEvent; import org.telegram.PhoneFormat.PhoneFormat; import org.telegram.messenger.AndroidUtilities; import org.telegram.messenger.ChatObject; import org.telegram.messenger.ImageReceiver; import org.telegram.messenger.LocaleController; import org.telegram.messenger.MessagesController; import org.telegram.messenger.UserObject; import org.telegram.messenger.R; import org.telegram.tgnet.ConnectionsManager; import org.telegram.tgnet.TLObject; import org.telegram.tgnet.TLRPC; import org.telegram.messenger.UserConfig; import org.telegram.ui.Components.AvatarDrawable; import org.telegram.ui.ActionBar.Theme; public class ProfileSearchCell extends BaseCell { private static TextPaint namePaint; private static TextPaint nameEncryptedPaint; private static TextPaint onlinePaint; private static TextPaint offlinePaint; private static TextPaint countPaint; private static Drawable lockDrawable; private static Drawable botDrawable; private static Drawable broadcastDrawable; private static Drawable groupDrawable; private static Drawable countDrawable; private static Drawable countDrawableGrey; private static Drawable checkDrawable; private static Paint linePaint; private CharSequence currentName; private ImageReceiver avatarImage; private AvatarDrawable avatarDrawable; private CharSequence subLabel; private TLRPC.User user = null; private TLRPC.Chat chat = null; private TLRPC.EncryptedChat encryptedChat = null; private long dialog_id; private String lastName = null; private int lastStatus = 0; private TLRPC.FileLocation lastAvatar = null; public boolean useSeparator = false; public float drawAlpha = 1; private int nameLeft; private int nameTop; private StaticLayout nameLayout; private boolean drawNameLock; private boolean drawNameBroadcast; private boolean drawNameGroup; private boolean drawNameBot; private int nameLockLeft; private int nameLockTop; private boolean drawCount; private int lastUnreadCount; private int countTop = AndroidUtilities.dp(25); private int countLeft; private int countWidth; private StaticLayout countLayout; private boolean drawCheck; private int onlineLeft; private StaticLayout onlineLayout; public ProfileSearchCell(Context context) { super(context); if (namePaint == null) { namePaint = new TextPaint(TextPaint.ANTI_ALIAS_FLAG); namePaint.setTypeface(AndroidUtilities.getTypeface("fonts/rmedium.ttf")); nameEncryptedPaint = new TextPaint(TextPaint.ANTI_ALIAS_FLAG); nameEncryptedPaint.setColor(0xff00a60e); nameEncryptedPaint.setTypeface(AndroidUtilities.getTypeface("fonts/rmedium.ttf")); onlinePaint = new TextPaint(TextPaint.ANTI_ALIAS_FLAG); onlinePaint.setColor(Theme.MSG_LINK_TEXT_COLOR); offlinePaint = new TextPaint(TextPaint.ANTI_ALIAS_FLAG); offlinePaint.setColor(0xff999999); linePaint = new Paint(); countPaint = new TextPaint(TextPaint.ANTI_ALIAS_FLAG); countPaint.setColor(0xffffffff); countPaint.setTypeface(AndroidUtilities.getTypeface("fonts/rmedium.ttf")); broadcastDrawable = getResources().getDrawable(R.drawable.list_broadcast); lockDrawable = getResources().getDrawable(R.drawable.list_secret); groupDrawable = getResources().getDrawable(R.drawable.list_group); countDrawable = getResources().getDrawable(R.drawable.dialogs_badge); countDrawableGrey = getResources().getDrawable(R.drawable.dialogs_badge2); checkDrawable = getResources().getDrawable(R.drawable.check_list); botDrawable = getResources().getDrawable(R.drawable.bot_list); resetPaint(context); } namePaint.setTextSize(AndroidUtilities.dp(17)); nameEncryptedPaint.setTextSize(AndroidUtilities.dp(17)); onlinePaint.setTextSize(AndroidUtilities.dp(16)); offlinePaint.setTextSize(AndroidUtilities.dp(16)); countPaint.setTextSize(AndroidUtilities.dp(13)); avatarImage = new ImageReceiver(this); avatarImage.setRoundRadius(AndroidUtilities.dp(26)); avatarDrawable = new AvatarDrawable(); } public static void resetPaint(Context context) { if (namePaint == null) { return; } namePaint.setColor(ContextCompat.getColor(context, R.color.primary_text)); linePaint.setColor(ContextCompat.getColor(context, R.color.chat_list_divider)); } @Override public boolean onTouchEvent(MotionEvent event) { if (Build.VERSION.SDK_INT >= 21 && getBackground() != null) { if (event.getAction() == MotionEvent.ACTION_DOWN || event.getAction() == MotionEvent.ACTION_MOVE) { getBackground().setHotspot(event.getX(), event.getY()); } } return super.onTouchEvent(event); } public void setData(TLObject object, TLRPC.EncryptedChat ec, CharSequence n, CharSequence s, boolean needCount) { currentName = n; if (object instanceof TLRPC.User) { user = (TLRPC.User) object; chat = null; } else if (object instanceof TLRPC.Chat) { chat = (TLRPC.Chat) object; user = null; } encryptedChat = ec; subLabel = s; drawCount = needCount; update(0); } @Override protected void onDetachedFromWindow() { super.onDetachedFromWindow(); avatarImage.onDetachedFromWindow(); } @Override protected void onAttachedToWindow() { super.onAttachedToWindow(); avatarImage.onAttachedToWindow(); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { setMeasuredDimension(MeasureSpec.getSize(widthMeasureSpec), AndroidUtilities.dp(72)); } @Override protected void onLayout(boolean changed, int left, int top, int right, int bottom) { if (user == null && chat == null && encryptedChat == null) { super.onLayout(changed, left, top, right, bottom); return; } if (changed) { buildLayout(); } } public void buildLayout() { CharSequence nameString; TextPaint currentNamePaint; drawNameBroadcast = false; drawNameLock = false; drawNameGroup = false; drawCheck = false; drawNameBot = false; if (encryptedChat != null) { drawNameLock = true; dialog_id = ((long) encryptedChat.id) << 32; if (!LocaleController.isRTL) { nameLockLeft = AndroidUtilities.dp(AndroidUtilities.leftBaseline); nameLeft = AndroidUtilities.dp(AndroidUtilities.leftBaseline + 4) + lockDrawable.getIntrinsicWidth(); } else { nameLockLeft = getMeasuredWidth() - AndroidUtilities.dp(AndroidUtilities.leftBaseline + 2) - lockDrawable.getIntrinsicWidth(); nameLeft = AndroidUtilities.dp(11); } nameLockTop = AndroidUtilities.dp(16.5f); } else { if (chat != null) { if (chat.id < 0) { dialog_id = AndroidUtilities.makeBroadcastId(chat.id); drawNameBroadcast = true; nameLockTop = AndroidUtilities.dp(28.5f); } else { dialog_id = -chat.id; if (ChatObject.isChannel(chat) && !chat.megagroup) { drawNameBroadcast = true; nameLockTop = AndroidUtilities.dp(28.5f); } else { drawNameGroup = true; nameLockTop = AndroidUtilities.dp(30); } } drawCheck = chat.verified; if (!LocaleController.isRTL) { nameLockLeft = AndroidUtilities.dp(AndroidUtilities.leftBaseline); nameLeft = AndroidUtilities.dp(AndroidUtilities.leftBaseline + 4) + (drawNameGroup ? groupDrawable.getIntrinsicWidth() : broadcastDrawable.getIntrinsicWidth()); } else { nameLockLeft = getMeasuredWidth() - AndroidUtilities.dp(AndroidUtilities.leftBaseline + 2) - (drawNameGroup ? groupDrawable.getIntrinsicWidth() : broadcastDrawable.getIntrinsicWidth()); nameLeft = AndroidUtilities.dp(11); } } else { dialog_id = user.id; if (!LocaleController.isRTL) { nameLeft = AndroidUtilities.dp(AndroidUtilities.leftBaseline); } else { nameLeft = AndroidUtilities.dp(11); } if (user.bot) { drawNameBot = true; if (!LocaleController.isRTL) { nameLockLeft = AndroidUtilities.dp(AndroidUtilities.leftBaseline); nameLeft = AndroidUtilities.dp(AndroidUtilities.leftBaseline + 4) + botDrawable.getIntrinsicWidth(); } else { nameLockLeft = getMeasuredWidth() - AndroidUtilities.dp(AndroidUtilities.leftBaseline + 2) - botDrawable.getIntrinsicWidth(); nameLeft = AndroidUtilities.dp(11); } nameLockTop = AndroidUtilities.dp(16.5f); } else { nameLockTop = AndroidUtilities.dp(17); } drawCheck = user.verified; } } if (currentName != null) { nameString = currentName; } else { String nameString2 = ""; if (chat != null) { nameString2 = chat.title; } else if (user != null) { nameString2 = UserObject.getUserName(user); } nameString = nameString2.replace('\n', ' '); } if (nameString.length() == 0) { if (user != null && user.phone != null && user.phone.length() != 0) { nameString = PhoneFormat.getInstance().format("+" + user.phone); } else { nameString = LocaleController.getString("HiddenName", R.string.HiddenName); } } if (encryptedChat != null) { currentNamePaint = nameEncryptedPaint; } else { currentNamePaint = namePaint; } int onlineWidth; int nameWidth; if (!LocaleController.isRTL) { onlineWidth = nameWidth = getMeasuredWidth() - nameLeft - AndroidUtilities.dp(14); } else { onlineWidth = nameWidth = getMeasuredWidth() - nameLeft - AndroidUtilities.dp(AndroidUtilities.leftBaseline); } if (drawNameLock) { nameWidth -= AndroidUtilities.dp(6) + lockDrawable.getIntrinsicWidth(); } else if (drawNameBroadcast) { nameWidth -= AndroidUtilities.dp(6) + broadcastDrawable.getIntrinsicWidth(); } else if (drawNameGroup) { nameWidth -= AndroidUtilities.dp(6) + groupDrawable.getIntrinsicWidth(); } else if (drawNameBot) { nameWidth -= AndroidUtilities.dp(6) + botDrawable.getIntrinsicWidth(); } if (drawCount) { TLRPC.TL_dialog dialog = MessagesController.getInstance().dialogs_dict.get(dialog_id); if (dialog != null && dialog.unread_count != 0) { lastUnreadCount = dialog.unread_count; String countString = String.format("%d", dialog.unread_count); countWidth = Math.max(AndroidUtilities.dp(12), (int) Math.ceil(countPaint.measureText(countString))); countLayout = new StaticLayout(countString, countPaint, countWidth, Layout.Alignment.ALIGN_CENTER, 1.0f, 0.0f, false); int w = countWidth + AndroidUtilities.dp(18); nameWidth -= w; if (!LocaleController.isRTL) { countLeft = getMeasuredWidth() - countWidth - AndroidUtilities.dp(19); } else { countLeft = AndroidUtilities.dp(19); nameLeft += w; } } else { lastUnreadCount = 0; countLayout = null; } } else { lastUnreadCount = 0; countLayout = null; } CharSequence nameStringFinal = TextUtils.ellipsize(nameString, currentNamePaint, nameWidth - AndroidUtilities.dp(12), TextUtils.TruncateAt.END); nameLayout = new StaticLayout(nameStringFinal, currentNamePaint, nameWidth, Layout.Alignment.ALIGN_NORMAL, 1.0f, 0.0f, false); if (chat == null || subLabel != null) { if (!LocaleController.isRTL) { onlineLeft = AndroidUtilities.dp(AndroidUtilities.leftBaseline); } else { onlineLeft = AndroidUtilities.dp(11); } CharSequence onlineString = ""; TextPaint currentOnlinePaint = offlinePaint; if (subLabel != null) { onlineString = subLabel; } else if (user != null) { if (user.bot) { onlineString = LocaleController.getString("Bot", R.string.Bot); } else { onlineString = LocaleController.formatUserStatus(user); if (user != null && (user.id == UserConfig.getClientUserId() || user.status != null && user.status.expires > ConnectionsManager.getInstance().getCurrentTime())) { currentOnlinePaint = onlinePaint; onlineString = LocaleController.getString("Online", R.string.Online); } } } CharSequence onlineStringFinal = TextUtils.ellipsize(onlineString, currentOnlinePaint, onlineWidth - AndroidUtilities.dp(12), TextUtils.TruncateAt.END); onlineLayout = new StaticLayout(onlineStringFinal, currentOnlinePaint, onlineWidth, Layout.Alignment.ALIGN_NORMAL, 1.0f, 0.0f, false); nameTop = AndroidUtilities.dp(13); if (subLabel != null && chat != null) { nameLockTop -= AndroidUtilities.dp(12); } } else { onlineLayout = null; nameTop = AndroidUtilities.dp(25); } int avatarLeft; if (!LocaleController.isRTL) { avatarLeft = AndroidUtilities.dp(AndroidUtilities.isTablet() ? 13 : 9); } else { avatarLeft = getMeasuredWidth() - AndroidUtilities.dp(AndroidUtilities.isTablet() ? 65 : 61); } avatarImage.setImageCoords(avatarLeft, AndroidUtilities.dp(10), AndroidUtilities.dp(52), AndroidUtilities.dp(52)); double widthpx; float left; if (LocaleController.isRTL) { if (nameLayout.getLineCount() > 0) { left = nameLayout.getLineLeft(0); if (left == 0) { widthpx = Math.ceil(nameLayout.getLineWidth(0)); if (widthpx < nameWidth) { nameLeft += (nameWidth - widthpx); } } } if (onlineLayout != null && onlineLayout.getLineCount() > 0) { left = onlineLayout.getLineLeft(0); if (left == 0) { widthpx = Math.ceil(onlineLayout.getLineWidth(0)); if (widthpx < onlineWidth) { onlineLeft += (onlineWidth - widthpx); } } } } else { if (nameLayout.getLineCount() > 0) { left = nameLayout.getLineRight(0); if (left == nameWidth) { widthpx = Math.ceil(nameLayout.getLineWidth(0)); if (widthpx < nameWidth) { nameLeft -= (nameWidth - widthpx); } } } if (onlineLayout != null && onlineLayout.getLineCount() > 0) { left = onlineLayout.getLineRight(0); if (left == onlineWidth) { widthpx = Math.ceil(onlineLayout.getLineWidth(0)); if (widthpx < onlineWidth) { onlineLeft -= (onlineWidth - widthpx); } } } } } public void update(int mask) { TLRPC.FileLocation photo = null; if (user != null) { if (user.photo != null) { photo = user.photo.photo_small; } avatarDrawable.setInfo(user); } else if (chat != null) { if (chat.photo != null) { photo = chat.photo.photo_small; } avatarDrawable.setInfo(chat); } else { avatarDrawable.setInfo(0, null, null, false); } if (mask != 0) { boolean continueUpdate = false; if ((mask & MessagesController.UPDATE_MASK_AVATAR) != 0 && user != null || (mask & MessagesController.UPDATE_MASK_CHAT_AVATAR) != 0 && chat != null) { if (lastAvatar != null && photo == null || lastAvatar == null && photo != null && lastAvatar != null && photo != null && (lastAvatar.volume_id != photo.volume_id || lastAvatar.local_id != photo.local_id)) { continueUpdate = true; } } if (!continueUpdate && (mask & MessagesController.UPDATE_MASK_STATUS) != 0 && user != null) { int newStatus = 0; if (user.status != null) { newStatus = user.status.expires; } if (newStatus != lastStatus) { continueUpdate = true; } } if (!continueUpdate && ((mask & MessagesController.UPDATE_MASK_NAME) != 0 && user != null) || (mask & MessagesController.UPDATE_MASK_CHAT_NAME) != 0 && chat != null) { String newName; if (user != null) { newName = user.first_name + user.last_name; } else { newName = chat.title; } if (!newName.equals(lastName)) { continueUpdate = true; } } if (!continueUpdate && drawCount && (mask & MessagesController.UPDATE_MASK_READ_DIALOG_MESSAGE) != 0) { TLRPC.TL_dialog dialog = MessagesController.getInstance().dialogs_dict.get(dialog_id); if (dialog != null && dialog.unread_count != lastUnreadCount) { continueUpdate = true; } } if (!continueUpdate) { return; } } if (user != null) { if (user.status != null) { lastStatus = user.status.expires; } else { lastStatus = 0; } lastName = user.first_name + user.last_name; } else if (chat != null) { lastName = chat.title; } lastAvatar = photo; avatarImage.setImage(photo, "50_50", avatarDrawable, null, false); if (getMeasuredWidth() != 0 || getMeasuredHeight() != 0) { buildLayout(); } else { requestLayout(); } postInvalidate(); } @Override protected void onDraw(Canvas canvas) { if (user == null && chat == null && encryptedChat == null) { return; } if (useSeparator) { if (LocaleController.isRTL) { canvas.drawLine(0, getMeasuredHeight() - 1, getMeasuredWidth() - AndroidUtilities.dp(AndroidUtilities.leftBaseline), getMeasuredHeight() - 1, linePaint); } else { canvas.drawLine(AndroidUtilities.dp(AndroidUtilities.leftBaseline), getMeasuredHeight() - 1, getMeasuredWidth(), getMeasuredHeight() - 1, linePaint); } } if (drawAlpha != 1) { canvas.saveLayerAlpha(0, 0, canvas.getWidth(), canvas.getHeight(), (int) (255 * drawAlpha), Canvas.HAS_ALPHA_LAYER_SAVE_FLAG); } if (drawNameLock) { setDrawableBounds(lockDrawable, nameLockLeft, nameLockTop); lockDrawable.draw(canvas); } else if (drawNameGroup) { setDrawableBounds(groupDrawable, nameLockLeft, nameLockTop); groupDrawable.draw(canvas); } else if (drawNameBroadcast) { setDrawableBounds(broadcastDrawable, nameLockLeft, nameLockTop); broadcastDrawable.draw(canvas); } else if (drawNameBot) { setDrawableBounds(botDrawable, nameLockLeft, nameLockTop); botDrawable.draw(canvas); } if (nameLayout != null) { canvas.save(); canvas.translate(nameLeft, nameTop); nameLayout.draw(canvas); canvas.restore(); if (drawCheck) { if (LocaleController.isRTL) { setDrawableBounds(checkDrawable, nameLeft - AndroidUtilities.dp(4) - checkDrawable.getIntrinsicWidth(), nameLockTop); } else { setDrawableBounds(checkDrawable, nameLeft + (int) nameLayout.getLineWidth(0) + AndroidUtilities.dp(4), nameLockTop); } checkDrawable.draw(canvas); } } if (onlineLayout != null) { canvas.save(); canvas.translate(onlineLeft, AndroidUtilities.dp(40)); onlineLayout.draw(canvas); canvas.restore(); } if (countLayout != null) { if (MessagesController.getInstance().isDialogMuted(dialog_id)) { setDrawableBounds(countDrawableGrey, countLeft - AndroidUtilities.dp(5.5f), countTop, countWidth + AndroidUtilities.dp(11), countDrawableGrey.getIntrinsicHeight()); countDrawableGrey.draw(canvas); } else { setDrawableBounds(countDrawable, countLeft - AndroidUtilities.dp(5.5f), countTop, countWidth + AndroidUtilities.dp(11), countDrawable.getIntrinsicHeight()); countDrawable.draw(canvas); } canvas.save(); canvas.translate(countLeft, countTop + AndroidUtilities.dp(4)); countLayout.draw(canvas); canvas.restore(); } avatarImage.draw(canvas); } }