Files
anm2ed/src/imgui/window/spritesheet_editor.cpp
2025-11-18 00:56:32 -05:00

433 lines
18 KiB
C++

#include "spritesheet_editor.h"
#include <cmath>
#include <format>
#include <utility>
#include "imgui_.h"
#include "imgui_internal.h"
#include "math_.h"
#include "tool.h"
#include "types.h"
using namespace anm2ed::canvas;
using namespace anm2ed::types;
using namespace anm2ed::resource;
using namespace anm2ed::util;
using namespace glm;
namespace anm2ed::imgui
{
constexpr auto BORDER_DASH_LENGTH = 1.0f;
constexpr auto BORDER_DASH_GAP = 0.5f;
constexpr auto BORDER_DASH_OFFSET = 0.0f;
constexpr auto PIVOT_COLOR = color::PINK;
SpritesheetEditor::SpritesheetEditor() : Canvas(vec2()) {}
void SpritesheetEditor::update(Manager& manager, Settings& settings, Resources& resources)
{
auto& document = *manager.get();
auto& anm2 = document.anm2;
auto& reference = document.reference;
auto& referenceSpritesheet = document.spritesheet.reference;
auto& pan = document.editorPan;
auto& zoom = document.editorZoom;
auto& backgroundColor = settings.editorBackgroundColor;
auto& gridColor = settings.editorGridColor;
auto& gridSize = settings.editorGridSize;
auto& gridOffset = settings.editorGridOffset;
auto& toolColor = settings.toolColor;
auto& isGrid = settings.editorIsGrid;
auto& isGridSnap = settings.editorIsGridSnap;
auto& zoomStep = settings.viewZoomStep;
auto& isBorder = settings.editorIsBorder;
auto& isTransparent = settings.editorIsTransparent;
auto spritesheet = document.spritesheet_get();
auto& tool = settings.tool;
auto& shaderGrid = resources.shaders[shader::GRID];
auto& shaderTexture = resources.shaders[shader::TEXTURE];
auto& dashedShader = resources.shaders[shader::DASHED];
auto reset_checker_pan = [&]()
{
checkerPan = pan;
checkerSyncPan = pan;
checkerSyncZoom = zoom;
isCheckerPanInitialized = true;
hasPendingZoomPanAdjust = false;
};
auto sync_checker_pan = [&]()
{
if (!isCheckerPanInitialized)
{
reset_checker_pan();
return;
}
if (pan != checkerSyncPan || zoom != checkerSyncZoom)
{
bool ignorePanDelta = hasPendingZoomPanAdjust && zoom != checkerSyncZoom;
if (!ignorePanDelta) checkerPan += pan - checkerSyncPan;
checkerSyncPan = pan;
checkerSyncZoom = zoom;
if (ignorePanDelta) hasPendingZoomPanAdjust = false;
}
};
auto center_view = [&]() { pan = -size * 0.5f; };
if (ImGui::Begin("Spritesheet Editor", &settings.windowIsSpritesheetEditor))
{
auto childSize = ImVec2(imgui::row_widget_width_get(3),
(ImGui::GetTextLineHeightWithSpacing() * 4) + (ImGui::GetStyle().WindowPadding.y * 2));
if (ImGui::BeginChild("##Grid Child", childSize, true, ImGuiWindowFlags_HorizontalScrollbar))
{
ImGui::Checkbox("Grid", &isGrid);
ImGui::SetItemTooltip("Toggle the visibility of the grid.");
ImGui::SameLine();
ImGui::Checkbox("Snap", &isGridSnap);
ImGui::SetItemTooltip("Cropping will snap points to the grid.");
ImGui::SameLine();
ImGui::ColorEdit4("Color", value_ptr(gridColor), ImGuiColorEditFlags_NoInputs);
ImGui::SetItemTooltip("Change the grid's color.");
input_int2_range("Size", gridSize, ivec2(GRID_SIZE_MIN), ivec2(GRID_SIZE_MAX));
ImGui::SetItemTooltip("Change the size of all cells in the grid.");
input_int2_range("Offset", gridOffset, ivec2(GRID_OFFSET_MIN), ivec2(GRID_OFFSET_MAX));
ImGui::SetItemTooltip("Change the offset of the grid.");
}
ImGui::EndChild();
ImGui::SameLine();
if (ImGui::BeginChild("##View Child", childSize, true, ImGuiWindowFlags_HorizontalScrollbar))
{
ImGui::InputFloat("Zoom", &zoom, zoomStep, zoomStep, "%.0f%%");
ImGui::SetItemTooltip("Change the zoom of the editor.");
auto widgetSize = ImVec2(imgui::row_widget_width_get(2), 0);
imgui::shortcut(manager.chords[SHORTCUT_CENTER_VIEW]);
if (ImGui::Button("Center View", widgetSize)) center_view();
imgui::set_item_tooltip_shortcut("Centers the view.", settings.shortcutCenterView);
ImGui::SameLine();
imgui::shortcut(manager.chords[SHORTCUT_FIT]);
if (ImGui::Button("Fit", widgetSize))
if (spritesheet) set_to_rect(zoom, pan, {0, 0, spritesheet->texture.size.x, spritesheet->texture.size.y});
imgui::set_item_tooltip_shortcut("Set the view to match the extent of the spritesheet.", settings.shortcutFit);
ImGui::TextUnformatted(std::format(POSITION_FORMAT, (int)mousePos.x, (int)mousePos.y).c_str());
}
ImGui::EndChild();
ImGui::SameLine();
if (ImGui::BeginChild("##Background Child", childSize, true, ImGuiWindowFlags_HorizontalScrollbar))
{
auto subChildSize = ImVec2(row_widget_width_get(2), ImGui::GetContentRegionAvail().y);
if (ImGui::BeginChild("##Background Child 1", subChildSize))
{
ImGui::ColorEdit3("Background", value_ptr(backgroundColor), ImGuiColorEditFlags_NoInputs);
ImGui::SetItemTooltip("Change the background color.");
ImGui::Checkbox("Border", &isBorder);
ImGui::SetItemTooltip("Toggle a border appearing around the spritesheet.");
}
ImGui::EndChild();
ImGui::SameLine();
if (ImGui::BeginChild("##Background Child 2", subChildSize))
{
ImGui::Checkbox("Transparent", &isTransparent);
ImGui::SetItemTooltip("Toggle the spritesheet editor being transparent.");
}
ImGui::EndChild();
}
ImGui::EndChild();
auto drawList = ImGui::GetCurrentWindow()->DrawList;
auto cursorScreenPos = ImGui::GetCursorScreenPos();
auto min = ImGui::GetCursorScreenPos();
auto max = to_imvec2(to_vec2(min) + size);
size_set(to_vec2(ImGui::GetContentRegionAvail()));
bind();
viewport_set();
clear(isTransparent ? vec4() : vec4(backgroundColor, 1.0f));
auto frame = document.frame_get();
if (spritesheet && spritesheet->texture.is_valid())
{
auto& texture = spritesheet->texture;
auto transform = transform_get(zoom, pan);
auto spritesheetModel = math::quad_model_get(texture.size);
auto spritesheetTransform = transform * spritesheetModel;
texture_render(shaderTexture, texture.id, spritesheetTransform);
if (isGrid) grid_render(shaderGrid, zoom, pan, gridSize, gridOffset, gridColor);
if (isBorder)
rect_render(dashedShader, spritesheetTransform, spritesheetModel, color::WHITE, BORDER_DASH_LENGTH,
BORDER_DASH_GAP, BORDER_DASH_OFFSET);
if (frame && reference.itemID > -1 &&
anm2.content.layers.at(reference.itemID).spritesheetID == referenceSpritesheet)
{
auto cropModel = math::quad_model_get(frame->size, frame->crop);
auto cropTransform = transform * cropModel;
rect_render(dashedShader, cropTransform, cropModel, color::RED);
auto pivotTransform =
transform * math::quad_model_get(canvas::PIVOT_SIZE, frame->crop + frame->pivot, PIVOT_SIZE * 0.5f);
texture_render(shaderTexture, resources.icons[icon::PIVOT].id, pivotTransform, PIVOT_COLOR);
}
}
unbind();
sync_checker_pan();
render_checker_background(drawList, min, max, -size * 0.5f - checkerPan, CHECKER_SIZE);
if (!isTransparent) drawList->AddRectFilled(min, max, ImGui::GetColorU32(to_imvec4(vec4(backgroundColor, 1.0f))));
drawList->AddImage(texture, min, max);
ImGui::InvisibleButton("##Spritesheet Editor", to_imvec2(size));
if (ImGui::IsItemHovered())
{
auto isMouseLeftClicked = ImGui::IsMouseClicked(ImGuiMouseButton_Left);
auto isMouseLeftReleased = ImGui::IsMouseReleased(ImGuiMouseButton_Left);
auto isMouseLeftDown = ImGui::IsMouseDown(ImGuiMouseButton_Left);
auto isMouseMiddleDown = ImGui::IsMouseDown(ImGuiMouseButton_Middle);
auto isMouseRightClicked = ImGui::IsMouseClicked(ImGuiMouseButton_Right);
auto isMouseRightDown = ImGui::IsMouseDown(ImGuiMouseButton_Right);
auto isMouseRightReleased = ImGui::IsMouseReleased(ImGuiMouseButton_Right);
auto mouseDelta = to_ivec2(ImGui::GetIO().MouseDelta);
auto mouseWheel = ImGui::GetIO().MouseWheel;
auto isMouseClicked = isMouseLeftClicked || isMouseRightClicked;
auto isMouseDown = isMouseLeftDown || isMouseRightDown;
auto isMouseReleased = isMouseLeftReleased || isMouseRightReleased;
auto isLeftJustPressed = ImGui::IsKeyPressed(ImGuiKey_LeftArrow, false);
auto isRightJustPressed = ImGui::IsKeyPressed(ImGuiKey_RightArrow, false);
auto isUpJustPressed = ImGui::IsKeyPressed(ImGuiKey_UpArrow, false);
auto isDownJustPressed = ImGui::IsKeyPressed(ImGuiKey_DownArrow, false);
auto isLeftPressed = ImGui::IsKeyPressed(ImGuiKey_LeftArrow);
auto isRightPressed = ImGui::IsKeyPressed(ImGuiKey_RightArrow);
auto isUpPressed = ImGui::IsKeyPressed(ImGuiKey_UpArrow);
auto isDownPressed = ImGui::IsKeyPressed(ImGuiKey_DownArrow);
auto isLeftDown = ImGui::IsKeyDown(ImGuiKey_LeftArrow);
auto isRightDown = ImGui::IsKeyDown(ImGuiKey_RightArrow);
auto isUpDown = ImGui::IsKeyDown(ImGuiKey_UpArrow);
auto isDownDown = ImGui::IsKeyDown(ImGuiKey_DownArrow);
auto isLeftReleased = ImGui::IsKeyReleased(ImGuiKey_LeftArrow);
auto isRightReleased = ImGui::IsKeyReleased(ImGuiKey_RightArrow);
auto isUpReleased = ImGui::IsKeyReleased(ImGuiKey_UpArrow);
auto isDownReleased = ImGui::IsKeyReleased(ImGuiKey_DownArrow);
auto isKeyJustPressed = isLeftJustPressed || isRightJustPressed || isUpJustPressed || isDownJustPressed;
auto isKeyDown = isLeftDown || isRightDown || isUpDown || isDownDown;
auto isKeyReleased = isLeftReleased || isRightReleased || isUpReleased || isDownReleased;
auto isZoomIn = chord_repeating(string_to_chord(settings.shortcutZoomIn));
auto isZoomOut = chord_repeating(string_to_chord(settings.shortcutZoomOut));
auto isBegin = isMouseClicked || isKeyJustPressed;
auto isDuring = isMouseDown || isKeyDown;
auto isEnd = isMouseReleased || isKeyReleased;
auto isMod = ImGui::IsKeyDown(ImGuiMod_Shift);
auto frame = document.frame_get();
auto useTool = tool;
auto step = isMod ? canvas::STEP_FAST : canvas::STEP;
auto stepX = isGridSnap ? step * gridSize.x : step;
auto stepY = isGridSnap ? step * gridSize.y : step;
previousMousePos = mousePos;
mousePos = position_translate(zoom, pan, to_vec2(ImGui::GetMousePos()) - to_vec2(cursorScreenPos));
auto snap_rect = [&](glm::vec2 minPoint, glm::vec2 maxPoint)
{
if (isGridSnap)
{
if (gridSize.x != 0)
{
auto offsetX = (float)(gridOffset.x);
auto sizeX = (float)(gridSize.x);
minPoint.x = std::floor((minPoint.x - offsetX) / sizeX) * sizeX + offsetX;
maxPoint.x = std::ceil((maxPoint.x - offsetX) / sizeX) * sizeX + offsetX;
}
if (gridSize.y != 0)
{
auto offsetY = (float)(gridOffset.y);
auto sizeY = (float)(gridSize.y);
minPoint.y = std::floor((minPoint.y - offsetY) / sizeY) * sizeY + offsetY;
maxPoint.y = std::ceil((maxPoint.y - offsetY) / sizeY) * sizeY + offsetY;
}
}
return std::pair{minPoint, maxPoint};
};
if (isMouseMiddleDown) useTool = tool::PAN;
if (tool == tool::MOVE && isMouseRightDown) useTool = tool::CROP;
if (tool == tool::CROP && isMouseRightDown) useTool = tool::MOVE;
if (tool == tool::DRAW && isMouseRightDown) useTool = tool::ERASE;
if (tool == tool::ERASE && isMouseRightDown) useTool = tool::DRAW;
auto& areaType = tool::INFO[useTool].areaType;
auto cursor = areaType == tool::SPRITESHEET_EDITOR || areaType == tool::ALL ? tool::INFO[useTool].cursor
: ImGuiMouseCursor_NotAllowed;
ImGui::SetMouseCursor(cursor);
ImGui::SetKeyboardFocusHere();
switch (useTool)
{
case tool::PAN:
if (isMouseDown || isMouseMiddleDown) pan += mouseDelta;
break;
case tool::MOVE:
if (!frame) break;
if (isBegin) document.snapshot("Frame Pivot");
if (isMouseDown) frame->pivot = vec2(ivec2(mousePos - frame->crop));
if (isLeftPressed) frame->pivot.x -= step;
if (isRightPressed) frame->pivot.x += step;
if (isUpPressed) frame->pivot.y -= step;
if (isDownPressed) frame->pivot.y += step;
frame->pivot = vec2(ivec2(frame->pivot));
if (isDuring)
{
if (ImGui::BeginTooltip())
{
auto pivotFormat = math::vec2_format_get(frame->pivot);
auto pivotString = std::format("Pivot: ({}, {})", pivotFormat, pivotFormat);
ImGui::Text(pivotString.c_str(), frame->pivot.x, frame->pivot.y);
ImGui::EndTooltip();
}
}
if (isEnd) document.change(Document::FRAMES);
break;
case tool::CROP:
if (!frame) break;
if (isBegin) document.snapshot("Frame Crop");
if (isMouseClicked)
{
cropAnchor = mousePos;
frame->crop = vec2(ivec2(cropAnchor));
frame->size = vec2();
}
if (isMouseDown)
{
auto [minPoint, maxPoint] = snap_rect(glm::min(cropAnchor, mousePos), glm::max(cropAnchor, mousePos));
frame->crop = vec2(ivec2(minPoint));
frame->size = vec2(ivec2(maxPoint - minPoint));
}
if (isLeftPressed) frame->crop.x -= stepX;
if (isRightPressed) frame->crop.x += stepX;
if (isUpPressed) frame->crop.y -= stepY;
if (isDownPressed) frame->crop.y += stepY;
frame->crop = vec2(ivec2(frame->crop));
frame->size = vec2(ivec2(frame->size));
if (isDuring)
{
if (!isMouseDown)
{
auto minPoint = glm::min(frame->crop, frame->crop + frame->size);
auto maxPoint = glm::max(frame->crop, frame->crop + frame->size);
frame->crop = vec2(ivec2(minPoint));
frame->size = vec2(ivec2(maxPoint - minPoint));
if (isGridSnap)
{
auto [snapMin, snapMax] = snap_rect(frame->crop, frame->crop + frame->size);
frame->crop = snapMin;
frame->size = snapMax - snapMin;
}
}
if (ImGui::BeginTooltip())
{
auto cropFormat = math::vec2_format_get(frame->crop);
auto sizeFormat = math::vec2_format_get(frame->size);
auto cropString = std::format("Crop: ({}, {})", cropFormat, cropFormat);
auto sizeString = std::format("Size: ({}, {})", sizeFormat, sizeFormat);
ImGui::Text(cropString.c_str(), frame->crop.x, frame->crop.y);
ImGui::Text(sizeString.c_str(), frame->size.x, frame->size.y);
ImGui::EndTooltip();
}
}
if (isEnd) document.change(Document::FRAMES);
break;
case tool::DRAW:
case tool::ERASE:
{
if (!spritesheet) break;
auto color = useTool == tool::DRAW ? toolColor : vec4();
if (isMouseClicked) document.snapshot(useTool == tool::DRAW ? "Draw" : "Erase");
if (isMouseDown) spritesheet->texture.pixel_line(ivec2(previousMousePos), ivec2(mousePos), color);
if (isMouseReleased) document.change(Document::SPRITESHEETS);
break;
}
case tool::COLOR_PICKER:
{
if (spritesheet && isDuring)
{
toolColor = spritesheet->texture.pixel_read(mousePos);
if (ImGui::BeginTooltip())
{
ImGui::ColorButton("##Color Picker Button", to_imvec4(toolColor));
ImGui::SameLine();
auto rgba8 = glm::clamp(ivec4(toolColor * 255.0f + 0.5f), ivec4(0), ivec4(255));
auto hex = std::format("#{:02X}{:02X}{:02X}{:02X}", rgba8.r, rgba8.g, rgba8.b, rgba8.a);
ImGui::TextUnformatted(hex.c_str());
ImGui::SameLine();
ImGui::Text("(%d, %d, %d, %d)", rgba8.r, rgba8.g, rgba8.b, rgba8.a);
ImGui::EndTooltip();
}
}
break;
}
default:
break;
}
if (mouseWheel != 0 || isZoomIn || isZoomOut)
{
auto focus = mouseWheel != 0 ? vec2(mousePos) : vec2();
if (auto spritesheet = document.spritesheet_get(); spritesheet && mouseWheel == 0)
focus = spritesheet->texture.size / 2;
auto previousZoom = zoom;
zoom_set(zoom, pan, focus, (mouseWheel > 0 || isZoomIn) ? zoomStep : -zoomStep);
if (zoom != previousZoom) hasPendingZoomPanAdjust = true;
}
}
}
ImGui::End();
if (!document.isSpritesheetEditorSet)
{
size = settings.editorSize;
zoom = settings.editorStartZoom;
set();
center_view();
reset_checker_pan();
document.isSpritesheetEditorSet = true;
}
settings.editorSize = size;
settings.editorStartZoom = zoom;
}
}