Initial work on move to implot 0.7 compatibility. See notes.

- This updates the bindings generator, the low-level bindings as
  well as the higher-level bindings and the examples to work
  with a newer master of cimplot that links to implot 0.7.
- Several things are not done properly yet:
  - Contexts can be created and as long as they are not dropped
    things work out (shown in the examples). However, this should
    be done more imgui-rs like, where operations that require a context
    make that explicit by requiring a context reference to be passed.
  - The README has not been updated yet to all the new features that
    were added.

implot-examples/examples/bar_plots.rs

@@ -2,7 +2,7 @@
 //! features of the libray, see the line_plots example.
 
 use imgui::{im_str, CollapsingHeader, Condition, Ui, Window};
-use implot::{Plot, PlotBars};
+use implot::{Context, Plot, PlotBars};
 
 mod support;
 
@@ -44,6 +44,7 @@ fn show_basic_horizontal_plot(ui: &Ui) {
 fn main() {
     let system = support::init(file!());
     let mut showing_demo = false;
+    let _plotcontext = Context::create(); // TODO(4bb4) use this as soon as things have been adapted
     system.main_loop(move |_, ui| {
         Window::new(im_str!("Bar plots example"))
             .size([430.0, 450.0], Condition::FirstUseEver)

implot-examples/examples/line_plots.rs

@@ -4,9 +4,9 @@
 use imgui::{im_str, CollapsingHeader, Condition, Ui, Window};
 use implot::{
     get_plot_limits, get_plot_mouse_position, get_plot_query, is_plot_hovered, is_plot_queried,
-    push_style_color, push_style_var_f32, push_style_var_u32, set_colormap_from_preset,
-    set_colormap_from_vec, AxisFlags, Colormap, ImPlotLimits, ImPlotPoint, ImPlotRange, ImVec4,
-    Marker, Plot, PlotColorElement, PlotFlags, PlotLine, StyleVar,
+    push_style_color, push_style_var_f32, push_style_var_i32, set_colormap_from_preset,
+    set_colormap_from_vec, AxisFlags, Colormap, Context, ImPlotLimits, ImPlotPoint, ImPlotRange,
+    ImVec4, Marker, Plot, PlotColorElement, PlotFlags, PlotLine, StyleVar,
 };
 
 mod support;
@@ -46,11 +46,11 @@ fn show_configurable_plot(ui: &Ui) {
     let y_min = 1.0;
     let y_max = 2.0;
     // - Plot flags, see the PlotFlags docs for more info
-    let plot_flags = PlotFlags::DEFAULT;
+    let plot_flags = PlotFlags::NONE;
     // - Axis flags, see the AxisFlags docs for more info. All flags are bitflags-created,
     //   so they support a bunch of convenient operations, see https://docs.rs/bitflags
-    let x_axis_flags = AxisFlags::DEFAULT;
-    let y_axis_flags = AxisFlags::DEFAULT;
+    let x_axis_flags = AxisFlags::NONE;
+    let y_axis_flags = AxisFlags::NONE;
 
     // - Unlabelled X axis ticks
     let x_ticks = vec![2.2, 2.5, 2.8];
@@ -154,12 +154,12 @@ fn show_style_plot(ui: &Ui) {
             },
             Condition::Always,
         )
-        .with_plot_flags(&(PlotFlags::DEFAULT))
-        .with_y_axis_flags(&(AxisFlags::DEFAULT))
+        .with_plot_flags(&(PlotFlags::NONE))
+        .with_y_axis_flags(&(AxisFlags::NONE))
         .build(|| {
             // Markers can be selected as shown here. The markers are internally represented
             // as an u32, hence this calling style.
-            let markerchoice = push_style_var_u32(&StyleVar::Marker, Marker::CROSS.bits());
+            let markerchoice = push_style_var_i32(&StyleVar::Marker, Marker::Cross as i32);
             PlotLine::new("Left eye").plot(&vec![2.0, 2.0], &vec![2.0, 1.0]);
             // Calling pop() on the return value of the push above will undo the marker choice.
             markerchoice.pop();
@@ -232,6 +232,7 @@ fn show_colormaps_plot(ui: &Ui) {
 fn main() {
     let system = support::init(file!());
     let mut showing_demo = false;
+    let _plotcontext = Context::create(); // TODO(4bb4) use this as soon as things have been adapted
     system.main_loop(move |_, ui| {
         Window::new(im_str!("Line plots example"))
             .size([430.0, 450.0], Condition::FirstUseEver)

implot-examples/examples/scatter_plots.rs

@@ -2,7 +2,9 @@
 //! features of the libray, see the line_plots example.
 
 use imgui::{im_str, CollapsingHeader, Condition, Ui, Window};
-use implot::{push_style_var_f32, push_style_var_u32, Marker, Plot, PlotScatter, StyleVar};
+use implot::{
+    push_style_var_f32, push_style_var_i32, Context, Marker, Plot, PlotScatter, StyleVar,
+};
 
 mod support;
 
@@ -28,7 +30,7 @@ fn show_custom_markers_plot(ui: &Ui) {
         "This header shows how markers can be used in scatter plots."
     ));
     let content_width = ui.window_content_region_width();
-    Plot::new("Simple scatter plot")
+    Plot::new("Multi-marker scatter plot")
         // The size call could also be omitted, though the defaults don't consider window
         // width, which is why we're not doing so here.
         .size(content_width, 300.0)
@@ -36,14 +38,14 @@ fn show_custom_markers_plot(ui: &Ui) {
             // Change to cross marker for one scatter plot call
             let x_positions = vec![0.1, 0.2, 0.1, 0.5, 0.9];
             let y_positions = vec![0.1, 0.1, 0.3, 0.3, 0.9];
-            let markerchoice = push_style_var_u32(&StyleVar::Marker, Marker::CROSS.bits());
+            let markerchoice = push_style_var_i32(&StyleVar::Marker, Marker::Cross as i32);
             PlotScatter::new("legend label 1").plot(&x_positions, &y_positions);
             markerchoice.pop();
 
             // One can combine things like marker size and markor choice
             let x_positions = vec![0.4, 0.1];
             let y_positions = vec![0.5, 0.3];
-            let marker_choice = push_style_var_u32(&StyleVar::Marker, Marker::DIAMOND.bits());
+            let marker_choice = push_style_var_i32(&StyleVar::Marker, Marker::Diamond as i32);
             let marker_size = push_style_var_f32(&StyleVar::MarkerSize, 12.0);
             PlotScatter::new("legend label 2").plot(&x_positions, &y_positions);
 
@@ -57,6 +59,7 @@ fn show_custom_markers_plot(ui: &Ui) {
 fn main() {
     let system = support::init(file!());
     let mut showing_demo = false;
+    let _plotcontext = Context::create(); // TODO(4bb4) use this as soon as things have been adapted
     system.main_loop(move |_, ui| {
         Window::new(im_str!("Scatter plots example"))
             .size([430.0, 450.0], Condition::FirstUseEver)

implot-examples/examples/text_plots.rs

@@ -2,7 +2,7 @@
 //! features of the libray, see the line_plots example.
 
 use imgui::{im_str, CollapsingHeader, Condition, Ui, Window};
-use implot::{Plot, PlotText};
+use implot::{Context, Plot, PlotText};
 
 mod support;
 
@@ -33,6 +33,7 @@ fn show_basic_plot(ui: &Ui) {
 fn main() {
     let system = support::init(file!());
     let mut showing_demo = false;
+    let _plotcontext = Context::create(); // TODO(4bb4) use this as soon as things have been adapted
     system.main_loop(move |_, ui| {
         Window::new(im_str!("Text plots example"))
             .size([430.0, 450.0], Condition::FirstUseEver)