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added gradient dir

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This commit is contained in:
Orange
2026-07-12 22:51:36 +03:00
parent 945f80241c
commit d4c86dacc7
4 changed files with 20 additions and 2 deletions
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examples/example_hud/gui/main_window.cpp
+8 -1
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@@ -161,6 +161,12 @@ namespace imgui_desktop::gui
ImGuiColorEditFlags_NoInputs);
ImGui::ColorEdit4("Gradient right##lbl", reinterpret_cast<float*>(&m_label_gradient_right),
ImGuiColorEditFlags_NoInputs);
if (m_animate_gradients)
{
int direction = static_cast<int>(m_label_gradient_direction);
if (ImGui::Combo("Direction##lbl", &direction, "Right to left\0Left to right\0"))
m_label_gradient_direction = static_cast<omath::hud::GradientDirection>(direction);
}
}
ImGui::SliderFloat("Offset##lbl", &m_label_offset, 0.f, 15.f);
ImGui::Checkbox("Right##lbl", &m_show_right_labels);
@@ -309,7 +315,8 @@ namespace imgui_desktop::gui
const Paint centered_label_color =
m_gradient_label ? Paint{omath::hud::Gradient{m_label_gradient_left, m_label_gradient_right,
m_label_gradient_right, m_label_gradient_left,
m_animate_gradients}}
m_animate_gradients, 4.f, 0.7f,
m_label_gradient_direction}}
: Paint{omath::Color::from_rgba(255, 255, 255, 255)};
auto outline_helper = [](const bool is_outline) -> Outlined
examples/example_hud/gui/main_window.hpp
+1
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@@ -68,6 +68,7 @@ namespace imgui_desktop::gui
omath::Color m_label_gradient_right{1.f, 0.2f, 0.7f, 1.f};
bool m_outlined = true;
bool m_gradient_label = true;
omath::hud::GradientDirection m_label_gradient_direction = omath::hud::GradientDirection::RightToLeft;
bool m_show_right_labels = true, m_show_left_labels = true;
bool m_show_top_labels = true, m_show_bottom_labels = true;
bool m_show_centered_top = true, m_show_centered_bottom = true;
include/omath/hud/gradient.hpp
+7
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@@ -3,6 +3,12 @@
namespace omath::hud
{
enum class GradientDirection
{
RightToLeft,
LeftToRight,
};
struct Gradient
{
Color top_left;
@@ -12,5 +18,6 @@ namespace omath::hud
bool animated = false;
float animation_speed = 4.f;
float animation_spread = 0.7f;
GradientDirection direction = GradientDirection::RightToLeft;
};
} // namespace omath::hud
source/hud/renderer_realizations/imgui_renderer.cpp
+4 -1
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@@ -103,6 +103,7 @@ namespace omath::hud
if (gradient.animated)
{
const float animation_offset = static_cast<float>(ImGui::GetTime()) * gradient.animation_speed;
const float direction = gradient.direction == GradientDirection::RightToLeft ? 1.f : -1.f;
float cursor_x = position.x;
const char* glyph_start = text.data();
const char* const text_end = text.data() + text.size();
@@ -117,7 +118,9 @@ namespace omath::hud
const char* const glyph_end = glyph_start + glyph_size;
const float blend =
(std::sin(animation_offset + static_cast<float>(glyph_index) * gradient.animation_spread) + 1.f)
(std::sin(animation_offset + direction * static_cast<float>(glyph_index)
* gradient.animation_spread)
+ 1.f)
* 0.5f;
const auto color = gradient.top_left.value() * (1.f - blend) + gradient.top_right.value() * blend;
draw_list->AddText({cursor_x, position.y}, Color{color}.to_im_color(), glyph_start, glyph_end);