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authorMarvin W <git@larma.de>2023-01-08 21:41:10 +0100
committerMarvin W <git@larma.de>2023-01-24 19:21:25 +0100
commitcc7db3b85f7b29bfac333937d8bf09a81d8dc4a5 (patch)
tree203749e9cab0bad50763e8d495029336d4874c28 /main/src/ui
parent99d9cb383abb1a33f6d0572deb4292dbf358f3ce (diff)
downloaddino-cc7db3b85f7b29bfac333937d8bf09a81d8dc4a5.tar.gz
dino-cc7db3b85f7b29bfac333937d8bf09a81d8dc4a5.zip
Fix scaling image for GTK4
Diffstat (limited to 'main/src/ui')
-rw-r--r--main/src/ui/conversation_content_view/file_image_widget.vala25
-rw-r--r--main/src/ui/util/scaling_image.vala259
2 files changed, 104 insertions, 180 deletions
diff --git a/main/src/ui/conversation_content_view/file_image_widget.vala b/main/src/ui/conversation_content_view/file_image_widget.vala
index 097ac695..ec8481b7 100644
--- a/main/src/ui/conversation_content_view/file_image_widget.vala
+++ b/main/src/ui/conversation_content_view/file_image_widget.vala
@@ -8,7 +8,6 @@ namespace Dino.Ui {
public class FileImageWidget : Box {
- private ScalingImage image;
FileDefaultWidget file_default_widget;
FileDefaultWidgetController file_default_widget_controller;
@@ -19,29 +18,7 @@ public class FileImageWidget : Box {
}
public async void load_from_file(File file, string file_name, int MAX_WIDTH=600, int MAX_HEIGHT=300) throws GLib.Error {
- // Load and prepare image in tread
- Thread<ScalingImage?> thread = new Thread<ScalingImage?> (null, () => {
- ScalingImage image = new ScalingImage() { halign=Align.START, visible = true, max_width = MAX_WIDTH, max_height = MAX_HEIGHT };
-
- Gdk.Pixbuf pixbuf;
- try {
- pixbuf = new Gdk.Pixbuf.from_file(file.get_path());
- } catch (Error error) {
- warning("Can't load picture %s - %s", file.get_path(), error.message);
- Idle.add(load_from_file.callback);
- return null;
- }
-
- pixbuf = pixbuf.apply_embedded_orientation();
-
- image.load(pixbuf);
-
- Idle.add(load_from_file.callback);
- return image;
- });
- yield;
- image = thread.join();
- if (image == null) throw new Error(-1, 0, "Error loading image");
+ FixedRatioPicture image = new FixedRatioPicture() { min_width = 100, min_height = 100, max_width = MAX_WIDTH, max_height = MAX_HEIGHT, file = file };
FileInfo file_info = file.query_info("*", FileQueryInfoFlags.NONE);
string? mime_type = file_info.get_content_type();
diff --git a/main/src/ui/util/scaling_image.vala b/main/src/ui/util/scaling_image.vala
index 20ff6718..d6ca31fd 100644
--- a/main/src/ui/util/scaling_image.vala
+++ b/main/src/ui/util/scaling_image.vala
@@ -2,183 +2,130 @@ using Gdk;
using Gtk;
namespace Dino.Ui {
-class ScalingImage : Widget {
- public int min_width { get; set; default = -1; }
- public int target_width { get; set; default = -1; }
- public int max_width { get; set; default = -1; }
- public int min_height { get; set; default = -1; }
- public int max_height { get; set; default = -1; }
-
- private Pixbuf image;
- private double image_ratio;
- private int image_height = 0;
- private int image_width = 0;
- private int last_allocation_height = -1;
- private int last_allocation_width = -1;
- private int last_scale_factor = -1;
- private Cairo.ImageSurface? cached_surface;
- private static int8 use_image_surface = -1;
- public void load(Pixbuf image) {
- this.image = image;
- this.image_ratio = ((double)image.height) / ((double)image.width);
- this.image_height = image.height;
- this.image_width = image.width;
- queue_resize();
- }
-
- public override void dispose() {
- base.dispose();
- image = null;
- cached_surface = null;
- }
+class FixedRatioLayout : Gtk.LayoutManager {
+ public int min_width { get; set; default = 0; }
+ public int target_width { get; set; default = -1; }
+ public int max_width { get; set; default = int.MAX; }
+ public int min_height { get; set; default = 0; }
+ public int target_height { get; set; default = -1; }
+ public int max_height { get; set; default = int.MAX; }
- private void calculate_size(ref double exact_width, ref double exact_height) {
- if (exact_width == -1 && exact_height == -1) {
- if (target_width == -1) {
- exact_width = ((double)image_width) / ((double)scale_factor);
- exact_height = ((double)image_height) / ((double)scale_factor);
- } else {
- exact_width = target_width;
- exact_height = exact_width * image_ratio;
- }
- } else if (exact_width != -1) {
- exact_height = exact_width * image_ratio;
- } else if (exact_height != -1) {
- exact_width = exact_height / image_ratio;
- } else {
- if (exact_width * image_ratio > exact_height + scale_factor) {
- exact_width = exact_height / image_ratio;
- } else if (exact_height / image_ratio > exact_width + scale_factor) {
- exact_height = exact_width * image_ratio;
- }
- }
- if (max_width != -1 && exact_width > max_width) {
- exact_width = max_width;
- exact_height = exact_width * image_ratio;
- }
- if (max_height != -1 && exact_height > max_height) {
- exact_height = max_height;
- exact_width = exact_height / image_ratio;
- }
- if (exact_width < min_width) exact_width = min_width;
- if (exact_height < min_height) exact_height = min_height;
+ public FixedRatioLayout() {
+ this.notify.connect(layout_changed);
}
- public override void size_allocate(int width, int height, int baseline) {
- if (max_width != -1) width = int.min(width, max_width);
- if (max_height != -1) height = int.min(height, max_height);
- height = int.max(height, min_height);
- width = int.max(width, min_width);
- double exact_width = width, exact_height = height;
- calculate_size(ref exact_width, ref exact_height);
- base.size_allocate(width, height, baseline);
- if (last_allocation_height != height || last_allocation_width != width || last_scale_factor != scale_factor) {
- last_allocation_height = height;
- last_allocation_width = width;
- last_scale_factor = scale_factor;
- cached_surface = null;
+ private void measure_target_size(Gtk.Widget widget, out int width, out int height) {
+ if (target_width != -1 && target_height != -1) {
+ width = target_width;
+ height = target_height;
+ return;
}
- }
-
- public override void snapshot(Gtk.Snapshot snapshot) {
- Cairo.Context context = snapshot.append_cairo(Graphene.Rect.alloc().init(0, 0, get_allocated_width(), get_allocated_height()));
- draw(context);
- }
-
- public bool draw(Cairo.Context ctx_in) {
- if (image == null) return false;
- Cairo.Context ctx = ctx_in;
- int width = this.get_allocated_width(), height = this.get_allocated_height(), base_factor = 1;
- if (use_image_surface == -1) {
- // TODO: detect if we have to buffer in image surface
- use_image_surface = 1;
+ Widget child;
+ width = min_width;
+ height = min_height;
+
+ child = widget.get_first_child();
+ while (child != null) {
+ if (child.should_layout()) {
+ int child_min = 0;
+ int child_nat = 0;
+ int child_min_baseline = -1;
+ int child_nat_baseline = -1;
+ child.measure(Orientation.HORIZONTAL, -1, out child_min, out child_nat, out child_min_baseline, out child_nat_baseline);
+ width = int.max(child_nat, width);
+ }
+ child = child.get_next_sibling();
}
- if (use_image_surface == 1) {
- ctx_in.scale(1f / scale_factor, 1f / scale_factor);
- if (cached_surface != null) {
- ctx_in.set_source_surface(cached_surface, 0, 0);
- ctx_in.paint();
- ctx_in.set_source_rgb(0, 0, 0);
- return true;
+ width = int.min(width, max_width);
+
+ child = widget.get_first_child();
+ while (child != null) {
+ if (child.should_layout()) {
+ int child_min = 0;
+ int child_nat = 0;
+ int child_min_baseline = -1;
+ int child_nat_baseline = -1;
+ child.measure(Orientation.VERTICAL, width, out child_min, out child_nat, out child_min_baseline, out child_nat_baseline);
+ height = int.max(child_nat, height);
}
- width *= scale_factor;
- height *= scale_factor;
- base_factor *= scale_factor;
- cached_surface = new Cairo.ImageSurface(Cairo.Format.ARGB32, width, height);
- ctx = new Cairo.Context(cached_surface);
+ child = child.get_next_sibling();
}
- double radius = 3 * base_factor;
- double degrees = Math.PI / 180.0;
- ctx.new_sub_path();
- ctx.arc(width - radius, radius, radius, -90 * degrees, 0 * degrees);
- ctx.arc(width - radius, height - radius, radius, 0 * degrees, 90 * degrees);
- ctx.arc(radius, height - radius, radius, 90 * degrees, 180 * degrees);
- ctx.arc(radius, radius, radius, 180 * degrees, 270 * degrees);
- ctx.close_path();
- ctx.clip();
-
- Cairo.Surface buffer = sub_surface(ctx, width, height);
- ctx.set_source_surface(buffer, 0, 0);
- ctx.paint();
-
- if (use_image_surface == 1) {
- ctx_in.set_source_surface(ctx.get_target(), 0, 0);
- ctx_in.paint();
- ctx_in.set_source_rgb(0, 0, 0);
+ if (height > max_height) {
+ height = max_height;
+ width = min_width;
+
+ child = widget.get_first_child();
+ while (child != null) {
+ if (child.should_layout()) {
+ int child_min = 0;
+ int child_nat = 0;
+ int child_min_baseline = -1;
+ int child_nat_baseline = -1;
+ child.measure(Orientation.HORIZONTAL, max_height, out child_min, out child_nat, out child_min_baseline, out child_nat_baseline);
+ width = int.max(child_nat, width);
+ }
+ child = child.get_next_sibling();
+ }
+ width = int.min(width, max_width);
}
-
- return true;
}
- private Cairo.Surface sub_surface(Cairo.Context ctx, int width, int height) {
- Cairo.Surface buffer = new Cairo.Surface.similar(ctx.get_target(), Cairo.Content.COLOR_ALPHA, width, height);
- Cairo.Context bufctx = new Cairo.Context(buffer);
- double w_scale = (double) width / image_width;
- double h_scale = (double) height / image_height;
- double scale = double.max(w_scale, h_scale);
- bufctx.scale(scale, scale);
-
- double x_off = 0, y_off = 0;
- if (scale == h_scale) {
- x_off = (width / scale - image_width) / 2.0;
+ public override void measure(Gtk.Widget widget, Orientation orientation, int for_size, out int minimum, out int natural, out int minimum_baseline, out int natural_baseline) {
+ minimum_baseline = -1;
+ natural_baseline = -1;
+ int width, height;
+ measure_target_size(widget, out width, out height);
+ if (orientation == Orientation.HORIZONTAL) {
+ minimum = min_width;
+ natural = width;
+ } else if (for_size == -1) {
+ minimum = min_height;
+ natural = height;
} else {
- y_off = (height / scale - image_height) / 2.0;
+ minimum = natural = height * for_size / width;
}
- Gdk.cairo_set_source_pixbuf(bufctx, image, 0, 0);
- bufctx.get_source().set_filter(Cairo.Filter.BILINEAR);
- bufctx.paint();
- bufctx.set_source_rgb(0, 0, 0);
- return buffer;
}
- public override void measure(Orientation orientation, int for_size, out int minimum, out int natural, out int minimum_baseline, out int natural_baseline) {
- double natural_width = -1, natural_height = -1;
- calculate_size(ref natural_width, ref natural_height);
- if (orientation == Orientation.HORIZONTAL) {
- natural = (int) Math.ceil(natural_width);
- } else {
- natural = (int) Math.ceil(natural_height);
- }
- if (for_size == -1) {
- minimum = 0;
- } else {
- if (orientation == Orientation.HORIZONTAL) {
- double exact_width = -1, exact_height = for_size;
- calculate_size(ref exact_width, ref exact_height);
- minimum = int.max((int)Math.floor(exact_width), min_width);
- } else {
- double exact_width = for_size, exact_height = -1;
- calculate_size(ref exact_width, ref exact_height);
- minimum = int.max((int)Math.floor(exact_height), min_height);
+ public override void allocate(Gtk.Widget widget, int width, int height, int baseline) {
+ Widget child = widget.get_first_child();
+ while (child != null) {
+ if (child.should_layout()) {
+ child.allocate(width, height, baseline, null);
}
+ child = child.get_next_sibling();
}
- minimum_baseline = natural_baseline = -1;
}
- public override SizeRequestMode get_request_mode() {
+ public override SizeRequestMode get_request_mode(Gtk.Widget widget) {
return SizeRequestMode.HEIGHT_FOR_WIDTH;
}
}
+
+class FixedRatioPicture : Gtk.Widget {
+ public int min_width { get { return layout.min_width; } set { layout.min_width = value; } }
+ public int target_width { get { return layout.target_width; } set { layout.target_width = value; } }
+ public int max_width { get { return layout.max_width; } set { layout.max_width = value; } }
+ public int min_height { get { return layout.min_height; } set { layout.min_height = value; } }
+ public int target_height { get { return layout.target_height; } set { layout.target_height = value; } }
+ public int max_height { get { return layout.max_height; } set { layout.max_height = value; } }
+ public File file { get { return inner.file; } set { inner.file = value; } }
+ public Gdk.Paintable paintable { get { return inner.paintable; } set { inner.paintable = value; } }
+#if GTK_4_8 && VALA_0_58
+ public Gtk.ContentFit content_fit { get { return inner.content_fit; } set { inner.content_fit = value; } }
+#endif
+ private Gtk.Picture inner = new Gtk.Picture();
+ private FixedRatioLayout layout = new FixedRatioLayout();
+
+ public FixedRatioPicture() {
+ layout_manager = layout;
+ inner.insert_after(this, null);
+ }
+
+ public override void dispose() {
+ inner.unparent();
+ base.dispose();
+ }
}
+} \ No newline at end of file