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Story Viewer: fix situational incorrect scaling of background images

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Charles Dang 2017-04-15 23:36:16 +11:00
parent 63403c90a5
commit e150c7c070
1 changed files with 11 additions and 19 deletions
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24
src/gui/dialogs/story_viewer.cpp
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@ -152,24 +152,16 @@ void story_viewer::display_part(window& window)
std::string width_formula = "(image_original_width)";
std::string height_formula = "(image_original_height)";
// If scale width is true, the image will be stretched to screen width.
if(layer.scale_horizontally()) {
width_formula = "(width)";
// Override height formula to preserve ratio, if applicable.
if(preserve_ratio) {
height_formula = "(image_original_height * width / image_original_width)";
}
}
// If scale height is true, the image will be stretched to screen height.
if(layer.scale_vertically()) {
if(layer.scale_horizontally() && preserve_ratio) {
height_formula = "(min((image_original_height * screen_width / image_original_width), height))";
} else {
height_formula = "(height)";
// Override width formula to preserve ratio, if applicable.
if(preserve_ratio) {
width_formula = "(image_original_width * height / image_original_height)";
}
if(layer.scale_vertically() && preserve_ratio) {
width_formula = "(min((image_original_width * screen_height / image_original_height), width))";
} else {
width_formula = "(width)";
}
// Background layers are always centered.