ui: maximize canvas area and compact side panels

src/clip_annotator/annotator.py

@@ -213,9 +213,9 @@ class Annotator(QMainWindow):
         vert_panel = QHBoxLayout()
         vert_panel.setContentsMargins(0, 0, 4, 0)
         for label_text, slider, reset_btn in [
-            ("Brightness", self.mc.brightness_slider, self.mc.brightness_reset),
-            ("Contrast", self.mc.contrast_slider, self.mc.contrast_reset),
-            ("Gamma", self.mc.gamma_slider, self.mc.gamma_reset),
+            ("B", self.mc.brightness_slider, self.mc.brightness_reset),
+            ("C", self.mc.contrast_slider, self.mc.contrast_reset),
+            ("G", self.mc.gamma_slider, self.mc.gamma_reset),
         ]:
             col = QVBoxLayout()
             lbl = QLabel(label_text)
@@ -243,8 +243,9 @@ class Annotator(QMainWindow):
         right_widget.setLayout(question_panel)
 
         main = QHBoxLayout()
-        main.addWidget(left_widget, 3)
-        main.addWidget(right_widget, 1)
+        right_widget.setMaximumWidth(160)
+        main.addWidget(left_widget, 1)
+        main.addWidget(right_widget, 0)
 
         container = QWidget()
         container.setLayout(main)
@@ -272,19 +273,19 @@ class Annotator(QMainWindow):
             for key, label, options, default in qs:
                 gvbox.addWidget(QLabel(label))
                 btn_group = QButtonGroup(self)
-                row = QHBoxLayout()
+                col = QVBoxLayout()
                 buttons = []
                 for opt in options:
                     btn = QRadioButton(opt)
                     btn_group.addButton(btn)
-                    row.addWidget(btn)
+                    col.addWidget(btn)
                     buttons.append(btn)
                     if default == opt:
                         btn.setChecked(True)
                 if default is None and buttons:
                     buttons[-1].setChecked(True)
                 self.q_widgets[key] = (btn_group, buttons, options)
-                gvbox.addLayout(row)
+                gvbox.addLayout(col)
             group.setLayout(gvbox)
             vbox.addWidget(group)
         return vbox

src/clip_annotator/mask_canvas.py

@@ -41,6 +41,7 @@ class MaskCanvas:
 
     def _build_figure(self, frames):
         self.fig = Figure(figsize=(self.dw / 80, self.dh / 80))
+        self.fig.subplots_adjust(left=0, right=1, top=0.97, bottom=0)
         self.canvas = FigureCanvas(self.fig)
         self.ax = self.fig.add_subplot(111)
         self.ax.axis("off")