vferrari/opengl_plot
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no mouse zoom

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This commit is contained in:
Vicente Ferrari Smith 2024-12-22 12:18:22 +01:00
parent 74525e08ac
commit f07013ad8a
1 changed files with 34 additions and 29 deletions
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9
module.jai
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@ -188,7 +188,7 @@ draw_plot :: (key: string, size: Vector2, xdata: []float64, yarrays: [][]float64
plot.pos.y += -mouse_delta.y * pixel_size_y / plot.zoom; plot.pos.y += -mouse_delta.y * pixel_size_y / plot.zoom;
} }
if !fixed_bounds { if mouse_wheel_zoom && !fixed_bounds {
plot.zoom += plot.zoom * (cast(float) mouse_wheel_delta * 0.1); plot.zoom += plot.zoom * (cast(float) mouse_wheel_delta * 0.1);
if plot.zoom < 0.01 { if plot.zoom < 0.01 {
@ -287,9 +287,10 @@ free_old_plots :: () {
} }
} }
init :: (_win_width: s32, _win_height: s32) { init :: (_win_width: s32, _win_height: s32, _mouse_wheel_zoom : bool) {
win_width = _win_width; win_width = _win_width;
win_height = _win_height; win_height = _win_height;
mouse_wheel_zoom = _mouse_wheel_zoom;
error := FT_Init_FreeType(*ftlib); error := FT_Init_FreeType(*ftlib);
if error { if error {
@ -351,6 +352,8 @@ primitives_rendered_this_frame : int;
win_width : s32; win_width : s32;
win_height : s32; win_height : s32;
mouse_wheel_zoom : bool;
PlotColors :: struct { PlotColors :: struct {
background : Vector3; background : Vector3;
lines : Vector3; lines : Vector3;
@ -521,6 +524,7 @@ draw_axis :: (using plot: Plot, style: PLOT_STYLE, colors: PlotColors) {
array_add(*positions, .{0.0, xx (content_height )}); array_add(*positions, .{0.0, xx (content_height )});
array_add(*positions, .{0.0, 0.0}); array_add(*positions, .{0.0, 0.0});
if plot.xfloat.count > 0 {
x_ticks := 10; x_ticks := 10;
for 0..x_ticks { for 0..x_ticks {
xpos : s64 = cast(s64) (cast(float) it / cast(float) x_ticks * cast(float) (content_width)); xpos : s64 = cast(s64) (cast(float) it / cast(float) x_ticks * cast(float) (content_width));
@ -557,6 +561,7 @@ draw_axis :: (using plot: Plot, style: PLOT_STYLE, colors: PlotColors) {
colors.text, plot.width, plot.height); colors.text, plot.width, plot.height);
} }
} }
}
glViewport(xx left_bearing, xx bottom_bearing, xx (width - left_bearing), xx (height - bottom_bearing)); glViewport(xx left_bearing, xx bottom_bearing, xx (width - left_bearing), xx (height - bottom_bearing));