kivy: simplify fee dialog

gui/kivy/uix/dialogs/fee_dialog.py

@@ -20,8 +20,9 @@ Builder.load_string('''
             Label:
                 text: _('Method') + ':'
             Button:
-                text: _('Mempool based') if root.method == 2 else _('ETA based') if root.method == 1 else _('Static')
+                text: _('Mempool') if root.method == 2 else _('ETA') if root.method == 1 else _('Static')
                 background_color: (0,0,0,0)
+                bold: True
                 on_release:
                     root.method  = (root.method + 1) % 3
                     root.update_slider()
@@ -30,25 +31,26 @@ Builder.load_string('''
             orientation: 'horizontal'
             size_hint: 1, 0.5
             Label:
-                text: _('Target') + ':'
+                text: (_('Target') if root.method > 0 else _('Fee')) + ':'
             Label:
                 id: fee_target
                 text: ''
-        BoxLayout:
-            orientation: 'horizontal'
-            size_hint: 1, 0.5
-            Label:
-                text: (_('Current rate') if root.method > 0 else _('Estimate')) + ':'
-            Label:
-                id: fee_estimate
-                text: ''
         Slider:
             id: slider
             range: 0, 4
             step: 1
             on_value: root.on_slider(self.value)
         Widget:
-            size_hint: 1, 1
+            size_hint: 1, 0.5
+        BoxLayout:
+            orientation: 'horizontal'
+            size_hint: 1, 0.5
+            TopLabel:
+                id: fee_estimate
+                text: ''
+                font_size: '14dp'
+        Widget:
+            size_hint: 1, 0.5
         BoxLayout:
             orientation: 'horizontal'
             size_hint: 1, 0.5
@@ -81,10 +83,23 @@ class FeeDialog(Factory.Popup):
         self.update_text()
 
     def update_text(self):
-        value = int(self.ids.slider.value)
-        target, estimate = self.get_fee_text(value)
+        pos = int(self.ids.slider.value)
+        dynfees, mempool = self.get_method()
+        if self.method == 2:
+            fee_rate = self.config.depth_to_fee(pos)
+            target, estimate = self.config.get_fee_text(pos, dynfees, mempool, fee_rate)
+            msg = 'In the current network conditions, in order to be positioned %s, a transaction will require a fee of %s.' % (target, estimate)
+        elif self.method == 1:
+            fee_rate = self.config.eta_to_fee(pos)
+            target, estimate = self.config.get_fee_text(pos, dynfees, mempool, fee_rate)
+            msg = 'In the last few days, transactions that confirmed %s usually paid a fee of at least %s.' % (target.lower(), estimate)
+        else:
+            fee_rate = self.config.static_fee(pos)
+            target, estimate = self.config.get_fee_text(pos, dynfees, True, fee_rate)
+            msg = 'In the current network conditions, a transaction paying %s would be positioned %s.' % (target, estimate)
+
         self.ids.fee_target.text = target
-        self.ids.fee_estimate.text = estimate
+        self.ids.fee_estimate.text = msg
 
     def get_method(self):
         dynfees = self.method > 0
@@ -99,14 +114,6 @@ class FeeDialog(Factory.Popup):
         slider.step = 1
         slider.value = pos
 
-    def get_fee_text(self, pos):
-        dynfees, mempool = self.get_method()
-        if dynfees:
-            fee_rate = self.config.depth_to_fee(pos) if mempool else self.config.eta_to_fee(pos)
-        else:
-            fee_rate = self.config.static_fee(pos)
-        return self.config.get_fee_text(pos, dynfees, mempool, fee_rate)
-
     def on_ok(self):
         value = int(self.ids.slider.value)
         dynfees, mempool = self.get_method()