canvas_interaction.h

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#ifndef YAZE_APP_GUI_CANVAS_CANVAS_INTERACTION_H
#define YAZE_APP_GUI_CANVAS_CANVAS_INTERACTION_H
 
#include "app/gfx/core/bitmap.h"
#include "app/gfx/render/tilemap.h"
#include "app/gui/canvas/canvas_events.h"
#include "app/gui/canvas/canvas_state.h"
#include "imgui/imgui.h"
 
namespace yaze {
namespace gui {
 
// ============================================================================
// Rectangle Selection (Phase 2.1)
// ============================================================================
 
RectSelectionEvent HandleRectangleSelection(
    const CanvasGeometry& geometry, int current_map, float tile_size,
    ImDrawList* draw_list,
    ImGuiMouseButton mouse_button = ImGuiMouseButton_Right);
 
TileSelectionEvent HandleTileSelection(
    const CanvasGeometry& geometry, int current_map, float tile_size,
    ImGuiMouseButton mouse_button = ImGuiMouseButton_Right);
 
// ============================================================================
// Tile Painting (Phase 2.2)
// ============================================================================
 
TilePaintEvent HandleTilePaint(
    const CanvasGeometry& geometry, int tile_id, float tile_size,
    ImGuiMouseButton mouse_button = ImGuiMouseButton_Left);
 
TilePaintEvent HandleTilePaintWithPreview(
    const CanvasGeometry& geometry, const gfx::Bitmap& bitmap, float tile_size,
    ImDrawList* draw_list,
    ImGuiMouseButton mouse_button = ImGuiMouseButton_Left);
 
TilePaintEvent HandleTilemapPaint(
    const CanvasGeometry& geometry, const gfx::Tilemap& tilemap,
    int current_tile, ImDrawList* draw_list,
    ImGuiMouseButton mouse_button = ImGuiMouseButton_Left);
 
// ============================================================================
// Hover and Preview (Phase 2.3)
// ============================================================================
 
HoverEvent HandleHover(const CanvasGeometry& geometry, float tile_size);
 
void RenderHoverPreview(const CanvasGeometry& geometry, const HoverEvent& hover,
                        float tile_size, ImDrawList* draw_list,
                        ImU32 color = IM_COL32(255, 255, 255, 80));
 
// ============================================================================
// Entity Interaction (Phase 2.4 - Future)
// ============================================================================
 
EntityInteractionEvent HandleEntityInteraction(const CanvasGeometry& geometry,
                                               int entity_id,
                                               ImVec2 entity_position);
 
// ============================================================================
// Helper Functions
// ============================================================================
 
ImVec2 AlignToGrid(ImVec2 pos, float grid_step);
 
ImVec2 GetMouseInCanvasSpace(const CanvasGeometry& geometry);
 
bool IsMouseInCanvas(const CanvasGeometry& geometry);
 
ImVec2 CanvasToTileGrid(ImVec2 canvas_pos, float tile_size, float global_scale);
 
}  // namespace gui
}  // namespace yaze
 
#endif  // YAZE_APP_GUI_CANVAS_CANVAS_INTERACTION_H