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Code Issues 150 Wiki Activity

pan ortho view with middle mouse

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maj00r
2026-10-08 22:00:04 +02:00
parent 7618dcda59
commit 95d4581da2
4 changed files with 66 additions and 1 deletions
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46
application/editormode.cpp
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@@ -30,6 +30,7 @@ extern char **environ;
#include "editor/editorGeometry.hpp"
#include "utilities/translation.h"
#include "utilities/Globals.h"
#include "utilities/glmHelpers.h"
#include "simulation/simulation.h"
#include "simulation/simulationtime.h"
#include "simulation/simulationenvironment.h"
@@ -1212,6 +1213,8 @@ bool editor_mode::update()
m_input.mouse.button(GLFW_MOUSE_BUTTON_RIGHT, GLFW_RELEASE);
Application.set_cursor(GLFW_CURSOR_NORMAL);
}
if (m_ortho_pan && !ImGui::GetIO().MouseDown[2])
ortho_pan_stop();
// same for the left button (brush / sculpt / click placement). the UI filter in the application
// uses io.WantCaptureMouse from the previous frame, so a press on a panel the cursor has just
@@ -3631,11 +3634,15 @@ void editor_mode::render_gizmo_options()
{
if (ImGui::Button(Global.EditorOrtho ? "3D view (O)" : "Top view, orthographic (O)"))
toggle_ortho();
if (ImGui::IsItemHovered())
ImGui::SetTooltip("%s", Global.EditorOrtho ? STR_C("Wheel zooms. Hold the wheel and drag to pan.") : STR_C("Top-down orthographic view"));
if (Global.EditorOrtho)
{
ImGui::SameLine();
ImGui::SetNextItemWidth(120.0f);
ImGui::SliderFloat(STR_C("Extent (m), wheel"), &Global.EditorOrthoExtent, 5.0f, 5000.0f, "%.0f", 3.0f);
ImGui::SliderFloat(STR_C("Extent (m), wheel / MMB pan"), &Global.EditorOrthoExtent, 5.0f, 5000.0f, "%.0f", 3.0f);
if (ImGui::IsItemHovered())
ImGui::SetTooltip("%s", STR_C("Wheel zooms. Hold the wheel and drag to pan."));
}
ImGui::Checkbox(STR_C("Enabled"), &m_gizmo_enabled);
if (!m_gizmo_enabled)
@@ -3938,9 +3945,32 @@ void editor_mode::toggle_ortho()
else
{
Camera.Angle.x = m_ortho_pitch;
ortho_pan_stop();
}
}
void editor_mode::ortho_pan_to(double const Horizontal, double const Vertical)
{
auto const &io{ImGui::GetIO()};
if (io.DisplaySize.y <= 0.0f)
return;
auto const dx{Horizontal - m_ortho_pan_cursor.x};
auto const dy{Vertical - m_ortho_pan_cursor.y};
m_ortho_pan_cursor = {Horizontal, Vertical};
auto const scale{2.0 * static_cast<double>(Global.EditorOrthoExtent) / static_cast<double>(io.DisplaySize.y)};
auto const world{RotateY(glm::dvec3{dx * scale, 0.0, dy * scale}, static_cast<double>(Camera.Angle.y))};
Camera.Pos.x -= world.x;
Camera.Pos.z -= world.z;
Camera.Velocity = {};
m_focus_active = false;
Global.pCamera = Camera;
}
void editor_mode::ortho_pan_stop()
{
m_ortho_pan = false;
}
void editor_mode::on_scroll(double const Xoffset, double const Yoffset)
{
if (false == Global.EditorOrtho || ImGui::GetIO().WantCaptureMouse)
@@ -4367,6 +4397,8 @@ void editor_mode::on_key(int const Key, int const Scancode, int const Action, in
void editor_mode::on_cursor_pos(double const Horizontal, double const Vertical)
{
if (m_ortho_pan)
ortho_pan_to(Horizontal, Vertical);
// object transforms are handled by the gizmo now; here we only forward the cursor to the
// mouse input, which rotates the camera while the right mouse button is held (panning mode)
m_input.mouse.position(Horizontal, Vertical);
@@ -4582,6 +4614,18 @@ void editor_mode::on_mouse_button(int const Button, int const Action, int const
// game-engine style look: hide & grab the cursor while flying, restore it on release
Application.set_cursor(is_press(Action) ? GLFW_CURSOR_DISABLED : GLFW_CURSOR_NORMAL);
}
else if (Button == GLFW_MOUSE_BUTTON_MIDDLE && Global.EditorOrtho)
{
if (is_press(Action))
{
m_ortho_pan = true;
m_ortho_pan_cursor = m_input.mouse.position();
m_focus_active = false;
Camera.Velocity = {};
}
else if (is_release(Action))
ortho_pan_stop();
}
m_input.mouse.button(Button, Action);
}