Cutlery/calibre
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Merge branch 'master' of https://github.com/unkn0w7n/calibre

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Kovid Goyal 2024-10-05 14:31:01 +05:30
commit 57f4b5d37c
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1 changed files with 23 additions and 1 deletions
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24
src/calibre/gui2/dialogs/trim_image.py
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@ -7,12 +7,18 @@ __copyright__ = '2013, Kovid Goyal <kovid at kovidgoyal.net>'
import os
import sys
from qt.core import QCheckBox, QDialog, QDialogButtonBox, QFormLayout, QHBoxLayout, QIcon, QKeySequence, QLabel, QSize, QSpinBox, Qt, QToolBar, QVBoxLayout
from qt.core import QCheckBox, QDialog, QDialogButtonBox, QFormLayout, QHBoxLayout, QIcon, QKeySequence, QLabel, QSize, QSpinBox, QDoubleSpinBox, Qt, QToolBar, QVBoxLayout
from calibre.gui2 import gprefs
from calibre.gui2.tweak_book.editor.canvas import Canvas
def reduce_to_ratio(w, h, t):
h = min(h, w / t)
w = t * h
return int(w), int(h)
class Region(QDialog):
ignore_value_changes = False
@ -30,6 +36,12 @@ class Region(QDialog):
h.setRange(20, max_height), h.setSuffix(' px'), h.setValue(height)
h.valueChanged.connect(self.value_changed)
l.addRow(_('&Height:'), h)
self.ratio_input = r = QDoubleSpinBox(self)
r.setRange(0.0, 5.00), r.setDecimals(2), r.setValue(max_width/max_height), r.setSingleStep(0.01), r.setToolTip('For example, use 0.75 for kindle devices.')
self.m_width = max_width
self.m_height = max_height
r.valueChanged.connect(self.aspect_changed)
l.addRow(_('&Adjust Aspect Ratio:'), r)
self.const_aspect = ca = QCheckBox(_('Keep the ratio of width to height fixed'))
ca.toggled.connect(self.const_aspect_toggled)
l.addRow(ca)
@ -46,6 +58,16 @@ class Region(QDialog):
self.resize(self.sizeHint())
self.current_aspect = width / height
def aspect_changed(self):
inp = float(self.ratio_input.value())
if inp > 0 and inp != round(self.m_width/self.m_height, 2):
rw, rh = reduce_to_ratio(self.m_width, self.m_height, inp)
self.width_input.setValue(rw)
self.height_input.setValue(rh)
else:
self.width_input.setValue(self.m_width)
self.height_input.setValue(self.m_height)
def const_aspect_toggled(self):
if self.const_aspect.isChecked():
self.current_aspect = self.width_input.value() / self.height_input.value()